Suzuki RB310 Service Manual 99500U83E10-01E

Page 1

IMPORTANT

WARNING/ CAUTION/NOTE

Please read this manual and follow its instructions carefully. To emphasize special information, the words WARNING, CAUTION and NOTE have spe- cial meanings. Pay special attention to the messages highlighted by these signal words.

WARNING: Indicates a potential hazard that could result in death or injury.

CAUTION: Indicates a potential hazard that could result in vehicle damage.

NOTE: Indicates special information to make maintenance easier or instructions clearer.

WARNING: This service manual is intended for authorized Suzuki dealers and qualified service mechanics only. Inexperienced mechanics or mechanics without the proper tools and equipment may not be able to properly perform the services described in this manual. Improper repair may result in injury to the mechanic and may render the vehicle unsafe for the driver and passengers.

WARNING: For vehicles equipped with a Supplemental Restraint Air Bag System: D Service on and around the air bag system

components or wiring must be performed only by an authorized SUZUKI dealer. Please observe all WARNINGS and CAUTIONS in SECTION 10B and Precautions, Air Bag System Components and Wiring Location View in SECTION 10B or before performing service on or around the air bag system components or wiring. Failure to follow WARNINGS could result in unintentional activation of the system or could render the system inoperative. Either of these two conditions may result in severe injury.

D If the air bag system and another vehicle sys-

tem both need repair, Suzuki recommends that the air bag system be repaired first, to help avoid unintended air bag deployment.

D Do not modify the steering wheel, instru-

ment panel or any other air bag system component (on or around air bag system components or wiring). Modifications can adversely affect air bag system performance and lead to injury.

D If the vehicle will be exposed to tempera-

tures over 93_C (200_F)(for example, during a paint baking process), remove the air bag system components (air bag (inflator) modules, SDM and/or seatbelt with pretensioner) beforehand to avoid component damage or unintended deployment.

Page 2

FOREWORD

This manual contains only different service information of the following applicable model as compared with RB413 SERVICE MANUAL.

Applicable model: RB310

Therefore, whenever servicing the above applicable model, consult this manual first. And for any section, item or description not found in this manual, refer to the related manual below.

When replacing parts or servicing by disassembling, it is recommended to use SUZUKI genuine parts, tools and service materials (lubricant, sealants, etc.) as specified in each description.

All information, illustrations and specifications contained in this literature are based on the latest product information available at the time of publication approval. And used as the main subject of description is the vehicle of standard specifications among others. Therefore, note that illustrations may differ from the vehicle being actually serviced. The right is reserved to make changes at any time without notice.

RELATED MANUAL:

Manual Name

RB413 Service Manual 99500-83E00-01E

RB310/RB413 Wiring Diagram Manual 99512U83E10-669

Manual No.

SERVICE DEPARTMENT

 COPYRIGHT MAGYAR SUZUKI CORPORATION 2001

Page 3

TABLE OF CONTENTS TABLE OF CONTENTS SECTIONSECTION

6-1

GENERAL INFORMATION

General Information Maintenance and Lubrication

HEATING AND AIR CONDITIONING

Heater and Ventilation Air Conditioning

(If Equipped)

STEERING, SUSPENSION, WHEELS AND TIRES

Steering, Suspension, Wheels and Tires

Front End Alignment Manual Rack and Pinion Electrical Power Steering

System (If Equipped) Steering Wheel and Column Front Suspension Rear Suspension Wheels and Tires

DRIVE SHAFT AND PROPELLER SHAFT

Front Drive Shaft

BRAKES

Brake Pipe/Hose / Master Cylinder

Front Brakes Parking and Rear Brakes Antilock Brake System

0A 0B

3A 3B

3B1

3C 3D 3E 3F

5B 5C

5E1

ENGINE

General Information and Engine Diagnosis

Engine Mechanical Engine Cooling Engine Fuel Engine and Emission

Control System Ignition System Cranking System Charging System Exhaust System

TRANSMISSION, CLUTCH AND DIFFERENTIAL

Manual Transmission Clutch

BODY ELECTRICAL SYSTEM

Wiring Diagram Lighting System Instrumentation/Driver

Information Windows, Mirrors, Security

and Lock Immobilizer Control System

BODY SERVICE

RESTRAINT SYSTEM

Seat Belt Air Bag System

6-1

6A 6B 6C

6E1

6G2

6H 6K

7A 7C

8 8A 8B

10A 10B

3C1

3B1

6E13

6G2

5E1

10A

10B

NOTE: For the screen toned Sections in the above table, refer to the same section of the Related Manuals mentioned in FOREWORD of this manual.

Page 4

MAINTENANCE AND LUBRICATION 0B-1

SECTION 0B

MAINTENANCE AND LUBRICATION

WARNING: For vehicles equipped with Supplemental Restraint (Air Bag) System: D Service on and around the air bag system components or wiring must be performed only by an autho-

rized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under “General Description” in air bag system section in order to confirm whether you are performing service on or near the air bag system components or wiring. Please observe all WARNINGS and “Service Precautions” under “On-Vehicle Service” in air bag system section before performing service on or around the air bag system components or wiring. Failure to follow WARNINGS could result in unintentional activation of the system or could render the system inoperative. Either of these two conditions may result in severe injury.

D Technical service work must be started at least 90 seconds after the ignition switch is turned to the

“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).

CONTENTS

MAINTENANCE SCHEDULE 0B- 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Normal Condition Schedule 0B- 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance Recommended Under Severe Driving Conditions 0B- 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MAINTENANCE SERVICE 0B- 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Engine 0B- 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ignition System 0B-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fuel System 0B-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Emission Control System 0B-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Brake 0B-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chassis and Body 0B-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Final Inspection 0B-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RECOMMENDED FLUIDS AND LUBRICANTS 0B-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 5

0B-2 MAINTENANCE AND LUBRICATION

judg

jg y

2-1.S ark lugs

When unleaded fuel is used

MAINTENANCE SCHEDULE

NORMAL CONDITION SCHEDULE

This table includes services as scheduled up to 90,000 km (54,000 miles)

Interval: This interval should be odometer reading or months, whichever comes first.

1. ENGINE

1-1. Drive belt (tension,

damage)

1-2. Camshaft timing belt Replace every 100,000 km (60,000 miles).

1-3. Blank

1-4. Engine oil

and oil filter

1-5. Engine coolant – R – R – R

1-6. Exhaust system (leakage, damage, tightness) – I – I – I

2. IGNITION SYSTEM

2-2. Distributor cap and rotor – – I – – I

3. FUEL SYSTEM

3-1. Air cleaner filter

3-2. Fuel lines (deterioration, leakage, damage) – I – I – I

3-3. Fuel tank – – I – – I

When SG, SH or SJ grade oil is used.

When SE or SF grade oil is used.

ed b

mileage. Beyond 90,000 km (54,000 miles), carry out the same services at the same intervals respectively.

Km ( 1,000)

Miles ( 1,000)

Months

V-rib belt (Flat type)

When leaded fuel is used Refer to “Severe Driving Condition” schedule.

Paved-road

Dusty condition Refer to “Severe Driving Condition” schedule.

15 30 45 60 75 90

9 18 27 36 45 54

12 24 36 48 60 72

– – I – – R

R R R R R R

Replace every 10,000 km (6,000 miles) or 8 months

– –

I I R I I R

– –

NOTES:

D For Item 2-1 “spark plugs”, replace every 50,000 km if the local law requires. D For Sweden, Item 2-1, 4-1 and 4-2 should be performed by odometer reading only. D For Item 1-2 Camshaft timing belt: This belt may be replaced every 90,000 km (54,000 miles) according

to customer’s maintenance convenience.

Page 6

MAINTENANCE AND LUBRICATION 0B-3

judg

This interval should be judged by

This table includes services as scheduled up to 90,000 km (54,000 miles)

Interval: This interval should be

ed b odometer reading or months, whichever comes first.

mileage. Beyond 90,000 km (54,000 miles), carry out the same services at the same intervals respectively.

Km ( 1,000)

Miles ( 1,000)

Months

15 30 45 60 75 90

9 18 27 36 45 54

12 24 36 48 60 72

4. EMISSION CONTROL SYSTEM

4-1. PCV (Positive Crankcase Ventilation) Valve – – – – – I

4-2. Fuel evaporative emission control system – – – – – I

5. BRAKE

5-1.

Brake discs and pads (thickness wear, damage)

Brake drums and shoes (wear, damage)

I I I I I I

– I – I – I

5-2. Brake hoses and pipes (leakage, damage, clamp) – I – I – I

5-3. Brake fluid – R – R – R

5-4. Brake lever and cable (damage, stroke, operation) Inspect at first 15,000 km (9,000 miles) only.

6. CHASSIS AND BODY

6-1. Clutch pedal (for manual transmission) – I – I – I

6-2. Tires/wheel discs (wear, damage, rotation) I I I I I I

6-3. Drive shafts (breakage, damage) – – I – – I

6-4. Suspension system (tightness, damage, rattle, break-

age)

– I – I – I

6-5. Steering system (tightness, damage, breakage, rattle) – I – I – I

6-6. Manual transmission oil I – R – – R

6-7. Automatic transmission

Fluid level

– I – I – I

Fluid change Replace every 165,000 km (99,000 miles).

Fluid hose

– – – R – –

6-8. All latches, hinges and locks – I – I – I

6-9. Ventilator air filter (if equipped) – I R – I R

NOTES:

D “R”: Replace or change D “I”: Inspect and correct or replace if necessary

Page 7

0B-4 MAINTENANCE AND LUBRICATION

ITEM 3-1

MAINTENANCE RECOMMENDED UNDER SEVERE DRIVING CONDITIONS

If the vehicle is usually used under the conditions corresponding to any severe condition code given below, it is recommended that applicable maintenance operation be performed at the particular interval as given in the chart below.

Severe condition code

A – Repeated short trips F – Leaded fuel use B – Driving on rough and/or muddy roads G – (For Diesel engine) Town use/ Towing a trailer/ C – Driving on dusty roads Sustained high speed driving/ D – Driving in extremely cold weather and/or Hot climates above 30_C (86_F)/

salted roads Low quality lubricants or fuel

E – Repeated short trips in extremely cold weather H – Trailer towing (if admitted)

Severe

Condition Code

– B C D – – – –

A – C D E F – H

A B C – E F – H

– – C – – – – –

– B C D – – – H

– B – D E – – H

– B – – E – – H

– – CD – – – –

Maintenance

ITEM 1-1 Drive belt (V-rib belt)

ITEM 1-4 Engine oil and filter

ITEM 2-1 Spark plugs

Air cleaner filter *1

ITEM 6-2 Wheel bearings

ITEM 6-3 Drive shafts

ITEM 6-6 Manual transmission oil

ITEM 6-7 Automatic transmission fluid

ITEM 6-9 Ventilator air filter*2 (if equipped)

Maintenance

Operation

I Every 2,500 km (1,500 miles)

Maintenance Interval

Every 15,000 km (9,000 miles) or 12 months

Every 45,000 km (27,000 miles) or 36 months

Every 5,000 km (3,000 miles) or 4 months

Every 10,000 km (6,000 miles) or 8 months

Every 30,000 km (18,000 miles) or 24 months

Every 15,000 km (9,000 miles) or 12 months

Every 30,000 km (18,000 miles) or 24 months

Every 15,000 km (9,000 miles) or 12 months

Every 45,000 km (27,000 miles) or 36 months

NOTES:

D “R”: Replace or change D “I”: Inspect and correct or replace if necessary D *1: Inspect or replace more frequently if necessary D *2: Clean or replace more frequently if air from ventilator decreases.

Page 8

1. Generator pulley

2. Water pump pulley 3. Crankshaft pulley

MAINTENANCE AND LUBRICATION 0B-5

MAINTENANCE SERVICE

ENGINE

ITEM 1-1 Drive Belt Inspection and Replacement

WARNING: Disconnect negative cable at battery before checking and adjusting belt tension.

Water pump belt inspection

1) Remove engine under cover of right side from vehicle body.

2) Inspect belt for cracks, cuts, deformation, wear and cleanliness. Replace, if necessary.

3) Check pump belt for tension and adjust it as necessary.

Water pump belt tension “a”: 8 – 10 mm (0.32 – 0.39 in.) deflection under 100 N, 10 kg or 22 lb pressure

NOTE: When replacing belt with a new one, adjust belt tension to 6 – 7 mm (0.24 – 0.27 in.).

1. A / C compressor pulley

2. Blank

3. Tension pulley

4. Crankshaft pulley

A/ C compressor drive belt inspection (If equipped)

1) Hoist vehicle and remove engine under cover of right side from vehicle body.

2) Inspect belt for wear, deterioration and tension. Replace or adjust, if necessary.

A/ C compressor drive belt tension “a”: 7 – 9 mm (0.28 – 0.35 in.) deflection under 100 N, 10 kg or 22 lb pressure

A/ C compressor drive belt replacement

1) Disconnect negative cable from battery.

2) Remove engine under cover of right side.

3) Loosen belt tension and replace belt with new one.

4) Adjust belt tension to specification.

5) Install engine under cover and connect negative cable to battery.

Water pump belt replacement

Replace belt with new one. Refer to SECTION 6B for replacement procedure of pump belt.

Page 9

0B-6 MAINTENANCE AND LUBRICATION

ITEM 1-2

Camshaft Timing Belt Replacement

Replace belt with new one. Refer to SECTION 6A for replacement procedure.

CAUTION:

D Do not bend or twist timing belt. D Do not allow timing belt to come into contact with oil, wa-

ter, etc.

Proper Engine Oil Viscosity Chart

1. Oil pan

2. Oil drain plug

ITEM 1-4

Engine Oil and Filter Change

WARNING: New and used engine oil can be hazardous. Be sure to read “WARNING” in General Precaution in SEC- TION 0A and observe what in written there.

Use engine oil of SE, SF, SG, SH or SJ grade. Select the appropriate oil viscosity according to the left chart.

Before draining engine oil, check engine for oil leakage. If any evidence of leakage is found, make sure to correct defective part before proceeding to following work.

1) Drain engine oil by removing drain plug.

2) After draining oil, wipe drain plug clean. Reinstall drain plug, and tighten it securely as specified below.

Tightening Torque (a): 50 N

m (5.0 kg-m, 36.5 lb-ft)

3) Loosen oil filter by using oil filter wrench (Special tool).

1. Oil filter

Special Tool (A): 09915-47330

4) Apply engine oil to new oil filter O-ring.

5) Screw new filter on oil filter stand by hand until filter O-ring contacts mounting surface.

CAUTION: To tighten oil filter properly, it is important to accurately identify the position at which filter O-ring first contacts mounting surface.

Page 10

1. Full level mark

2. Low level mark

MAINTENANCE AND LUBRICATION 0B-7

6) Tighten filter 3/ 4 turn from the point of contact with mounting surface using an oil filter wrench.

Special Tool (A): 09915-47330

Tightening Torque (Reference) (a): 14 N

m (1.4 kg-m, 10.5 lb-ft)

7) Replenish oil until oil level is brought to FULL level mark on dipstick (oil pan and oil filter capacity). Filler inlet is at the top of cylinder head cover.

8) Start engine and run it for three minutes. Stop it and wait another 5 minutes before checking oil level. Add oil, as necessary, to bring oil level to FULL level mark on dipstick.

Engine Oil Capacity

Oil pan capacity

Oil filter capacity

Others

Total

About 3.1 liters

(6.5/ 5.5 US / lmp pt.)

About 0.2 liter

(0.4/ 0.3 US / lmp pt.)

About 0.3 liter

(0.6/ 0.5 US / lmp pt.)

About 3.6 liters

(7.5/ 6.3 US / lmp pt.)

NOTE: Engine oil capacity is specified as left table. However, note that amount of oil required when actually changing oil may somewhat differ from data in left table depending on various conditions (temperature, viscosity, etc.).

9) Check oil filter and drain plug for oil leakage.

ITEM 1-5

Engine Coolant Change

WARNING: To help avoid danger of being burned, do not remove radiator cap while engine and radiator are still hot. Scalding fluid and steam can be blown out under pressure if cap is taken off too soon.

Page 11

0B-8 MAINTENANCE AND LUBRICATION

CAUTION: When changing engine coolant, use mixture of 50% water and 50% ethylene-glycol base coolant (Anti-Freeze/Anticorrosion coolant) for the market where ambient temperature falls lower than –16_C (3_F) in winter and mixture of 70% water and 30% ethylene-glycol base coolant for the market where ambient temperature doesn’t fall lower than –16_C (3_F). Even in a market where no freezing temperature is anticipated, mixture of 70% water and 30% ethylene-glycol base coolant should be used for the purpose of corrosion protection and lubrication.

Refer to SECTION 6B for COOLANT CAPACITY.

1) Remove radiator cap when engine is cool.

2) Loosen radiator drain plug (1) to drain coolant.

3) Remove reservoir and drain.

4) Tighten drain plug securely. Also install reservoir.

5) Slowly pour specified amount of coolant to the base of radiator filler neck, and run engine, with radiator cap removed, until radiator upper hose is hot. This drives out any air which may still be trapped within cooling system. Add coolant as necessary until coolant level reaches filler throat of radiator. Reinstall radiator cap.

6) Add coolant to reservoir so that its level aligns with Full mark (1). Then, reinstall cap (2) to reservoir aligning match marks (3) on reservoir and cap.

Page 12

MAINTENANCE AND LUBRICATION 0B-9

ITEM 1-6

Exhaust System Inspection

WARNING: To avoid danger of being burned, do not touch exhaust system when it is still hot. Any service on exhaust system should be performed when it is cool.

When carrying out periodic maintenance or vehicle is raised for other service, check exhaust system as follows:

D Check rubber mountings for damage and deterioration. D Check exhaust system for leakage, loose connections, dents,

and damages. If bolts or nuts are loose, tighten them to specification. Refer to SECTION 6K for torque specification of bolts and nuts.

D Check nearby body areas for damaged, missing or mispositioned

parts, open seams, holes, loose connections or other defects which could permit exhaust fumes to seep into vehicle.

D Make sure that exhaust system components have enough clear-

ance from underbody to avoid overheating and possible damage to floor carpet.

D Any defects should be fixed at once.

IGNITION SYSTEM

ITEM 2-1

Spark Plugs Replacement

Replace spark plugs with new ones referring to SECTION 6F.

ITEM 2-2

Distributor Cap and Rotor Inspection (if equipped)

D Check distributor cap and rubber caps for cracks. D Clean dusty and stained parts using a dry, soft cloth. D Check center electrode and terminals for wear. D Check rotor for cracks and its electrode for wear.

Repair or replace any component which is found to be in malcondition.

Page 13

0B-10 MAINTENANCE AND LUBRICATION

FUEL SYSTEM

ITEM 3-1 Air Cleaner Filter Inspection

1) Unclamp air cleaner case clamps.

2) Take cleaner filter out of air cleaner case.

3) Visually check that air cleaner filter is not excessively dirty, damaged or oily.

4) Clean filter with compressed air from air outlet side of filter.

5) Install air cleaner filter into case referring to Section 6A.

6) Clamp case securely.

Air Cleaner Filter Replacement

Replace air cleaner filter with new one according to steps 1), 2), 5) and 6) of Air Cleaner Filter Inspection.

ITEM 3-2

Fuel Lines Inspection

D Check fuel lines for loose connection, deterioration or damage

which could cause leakage. Make sure all clamps are secure.

D Replace any damaged or deteriorate parts.

There should be no sign of fuel leakage or moisture at any fuel connection.

ITEM 3-3

Fuel Tank Inspection

Check fuel tank for damage, cracks, fuel leakage, corrosion and tank bolts looseness. If a problem is found, repair or replace.

EMISSION CONTROL SYSTEM

ITEM 4-1

PCV (Positive Crankcase Ventilation) Valve Inspection

Check crankcase ventilation and PCV hose for leaks, cracks or clog, and PCV valve (1) for stick or clog. Refer to ON-VEHICLE SERVICE of SECTION 6E1 for PCV valve checking procedure.

Page 14

MAINTENANCE AND LUBRICATION 0B-11

ITEM 4-2

Fuel Evaporative Emission Control System Inspection

WARNING: DO NOT SUCK nozzles on EVAP canister. Fuel vapor inside EVAP canister is harmful.

1) Visually inspect hoses for cracks, damage or excessive bends. Inspect all clamps for damage and proper position.

2) Check EVAP canister for operation and clog, referring to SECTION 6E1. If a malfunction is found, repair or replace.

BRAKE

ITEM 5-1 Brake Discs, Pads, Drums and Shoes Inspection Brake discs and pads

1) Remove wheel and caliper but don’t disconnect brake hose from caliper.

2) Check front disc brake pads and discs for excessive wear, damage and deflection. Replace parts as necessary. For the details, refer to SECTION 5B.

3) Install caliper and wheel.

Brake drums and shoes

1) Remove wheel and brake drum.

2) Check rear brake drums and brake linings for excessive wear and damage, while wheels and drums are removed. At the same time, check wheel cylinders for leakage. Replace as necessary. For the details, refer to SECTION 5C.

3) Install brake drum and wheel.

Page 15

0B-12 MAINTENANCE AND LUBRICATION

ITEM 5-2 Brake Hoses and Pipes Inspection

Perform this inspection where there is enough light and use a mirror as necessary. D Check brake hoses and pipes for proper hook-up, leaks, cracks,

chafing, wear, corrosion, bends, twists and other damage. Replace any of these parts as necessary.

D Check all clamps for tightness and connections for leakage. D Check that hoses and pipes are clear of sharp edges and inse-

cure parts.

CAUTION: After replacing any brake pipe or hose, be sure to carry out air purge operation.

“a”

“a”: Parking brake lever stroke:

4 – 9 notches (with 20 kg or 44 lbs of pull pressure)

ITEM 5-3 Brake Fluid Change

CAUTION: Do not use old or used brake fluid, or any fluid from any unsealed container.

Change brake fluid as follows. Drain existing fluid from brake system completely, fill system with above recommended fluid and carry out air purge operation. For air purging procedure, refer to SECTION 5.

ITEM 5-4 Brake Lever and Cable Inspection Parking brake lever

D Check tooth tip of each notch for damage or wear. If any damage

or wear is found, replace parking lever.

D Check parking brake lever for proper operation and stroke, and

adjust it if necessary. For checking and adjusting procedures, refer to PARKING BRAKE INSPECTION AND ADJUSTMENT in SECTION 5C.

Parking brake cable

Inspect brake cable for damage and smooth movement. Replace cable if it is in deteriorated condition.

Page 16

1. Wear indicator

MAINTENANCE AND LUBRICATION 0B-13

CHASSIS AND BODY

ITEM 6-1 Clutch Pedal Free Travel Inspection (Cable type only)

Check clutch pedal free travel “a”. Refer to SECTION 7C for procedure to check and adjust it.

ITEM 6-2 Tire/Wheel Disc Inspection

[Tire inspection]

1) Check tire for uneven or excessive wear, cuts or damage. If defective, replace.

2) Check inflating pressure of each tire and adjust pressure to specification as necessary.

NOTE: D Tire inflation pressure should be checked when tires are

cool.

D Specified tire inflation pressure should be found on tire

placard or in owner’s manual which came with vehicle.

[Wheel disc inspection] Inspect each wheel disc for dents, distortion and cracks. A disc in badly damaged condition must be replaced.

[Tire rotation] Rotate tires. For details of the steps, refer to SECTION 3F.

Page 17

0B-14 MAINTENANCE AND LUBRICATION

Wheel Bearing Inspection

1) Check front wheel bearing for wear, damage, abnormal noise or rattles. For details, refer to FRONT SUSPENSION INSPECTION of SECTION 3D.

2) Check rear wheel bearing for wear, damage abnormal noise or rattle. For details, refer to REAR SUSPENSION INSPECTION of SECTION 3E.

ITEM 6-3 Drive Shaft (Axle) Boot Inspection

Check drive shaft boots (wheel side and differential side) for leakage, detachment, tear or any other damage. Replace boot as necessary.

ITEM 6-4 Suspension System Inspection

D Inspect front struts & rear shock absorbers for evidence of oil

leakage, dents or any other damage on sleeves; and inspect anchor ends for deterioration. Replace defective parts, if any.

D Check front and rear suspension systems for damaged, loose or

missing parts; also for parts showing signs of wear or lack of lubrication. Repair or replace defective parts, if any.

D Check front suspension arm ball joint stud dust seals for leakage,

detachment, tear or any other damage. Replace defective boot, if any.

ITEM 6-5 Steering System Inspection

1) Check steering wheel for play and rattle, holding vehicle straight on ground.

Steering wheel play “a”: 0 – 30 mm (0 – 1.1 in.)

2) Check bolts and nuts for tightness and retighten them as necessary. Repair or replace defective parts, if any.

Page 18

1. Tie-rod end boot

2. Steering gear case boot

3. Universal joint

MAINTENANCE AND LUBRICATION 0B-15

3) Check steering linkage for looseness and damage. Repair or replace defective parts, if any.

4) Check boots of steering linkage and steering gear case for damage (leaks, detachment, tear, etc.). If damage is found, replace defective boot with new one. If any dent is found on steering gear case boots, correct it to original shape by turning steering wheel to the right or left as far as it stops and holding it for a few seconds.

5) Check universal joints of steering shaft for rattle and damage. If rattle or damage is found, replace defective part with a new one.

6) Check that steering wheel can be turned fully to the right and left. Repair or replace defective parts, if any.

7) If equipped with power steering system, check also, in addition to above check items, that steering wheel can be turned fully to the right and left more lightly when engine is running at idle speed than when it is stopped. Repair, if found faulty.

8) Check wheel alignment referring to Section 3A.

ITEM 6-6 Manual Transmission Oil Inspection and Change

[Inspection]

1) Inspect transmission case for evidence of oil leakage. Repair leaky point if any.

2) Make sure that vehicle is placed level for oil level check.

3) Remove oil filler /level plug (1) of transmission.

4) Check oil level. Oil level can be checked roughly by means of filler/ level plug hole. That is, if oil flows out of level plug hole or if oil level is found up to hole when level plug is removed, oil is properly filled. If oil is found insufficient, pour specified oil up to level hole. For specified oil, refer to description of oil change under On-Vehicle Service in Section 7A.

5) Apply sealant to filler /level plug and tighten it to specified torque.

[Change]

1) Place the vehicle level and drain oil by removing drain plug (2).

2) Apply sealant to drain plug after cleaning it and tighten drain plug to specified torque.

3) Pour specified oil up to level hole.

4) Tighten filler plug to specified torque. For recommended oil, its amount and tightening torque data, refer to On-Vehicle Service of Section 7A.

Page 19

0B-16 MAINTENANCE AND LUBRICATION

1. Dipstick

2. Clamp

3. FULL HOT mark

4. LOW HOT mark

ITEM 6-7 Automatic Transmission Fluid Inspection and Change

[Fluid level inspection]

1) Inspect transmission case for evidence of fluid leakage. Repair leaky point, if any.

2) Make sure that vehicle is placed level for fluid level check.

3) Unclamp dipstick and pull out it. Check fluid level. For fluid level checking procedure, refer to SECTION 7B and be sure to perform it under specified conditions. If fluid level is low, replenish specified fluid.

[Fluid change]

1) Perform steps 1) and 2) of above Fluid Level Inspection.

2) Change fluid with new specified fluid referring to SECTION 7B.

1. Drain plug

ITEM 6-8 All Latches, Hinges and Locks Inspection Doors

Check that each door of front, rear and back doors opens and closes smoothly and locks securely when closed. If any malfunction is found, lubricate hinge and latch or repair door lock system.

Engine hood

Check that secondary latch operates properly (check that secondary latch keeps hood from opening all the way even when pulling hood release handle inside vehicle.) Also check that hood opens and closes smoothly and properly and hood locks securely when closed. If any malfunction is found, lubricate hinge and latch, or repair hood lock system.

Page 20

MAINTENANCE AND LUBRICATION 0B-17

ITEM 6-9 Ventilator Air Filter (if equipped)

Inspection

1) Remove air filter from air inlet box or cooling unit by removing filter cover located on bottom of case.

2) Check filter for dirt. Replace excessively dirty filter.

3) Blow off dust by compressed air from air outlet side of filter.

4) Install filter to air inlet box or cooling unit referring to Section 1B.

Replacement

Replace ventilator air filter with new one referring to Section 1B.

Page 21

0B-18 MAINTENANCE AND LUBRICATION

FINAL INSPECTION

WARNING: When carrying out road tests, select a safe place where no man or no running vehicle is seen so as to prevent any accident.

Seats

Check that seat slides smoothly and locks securely at any position. Also check that reclining mechanism of front seat back allows it to be locked at any angle.

Seat Belt

Inspect belt system including webbing, buckles, latch plates, retractors and anchors for damage or wear. Check that seat belt is securely locked.

Battery Electrolyte Level Check

Check that the electrolyte level of all battery cells is between the upper and lower level lines on the case. If battery is equipped with built-in indicator, check battery condition by the indicator.

Accelerator Pedal Operation

Check that pedal operates smoothly without getting caught or interfered by other part.

Engine Start

Check engine start for readiness.

WARNING: Before performing the following check, be sure to have enough room around the vehicle. Then, firmly apply both the parking brake and the regular brakes. Do not use the accelerator pedal. If the engine starts, be ready to turn off the ignition promptly. Take these precautions because the car could move without warning and possibly cause personal injury or property damage.

On automatic transmission vehicles, try to start the engine in each select lever position. The starting motor should crank only in “P” (Park) or “N” (Neutral). On manual transmission vehicles, place the shift lever in “Neutral”, depress clutch pedal fully and try to start.

Exhaust System Check

Check for leakage, cracks or loose supports.

Clutch (For Manual transmission)

Check for the following. D Clutch is completely released when depressing

clutch pedal,

D No slipping clutch occurs when releasing the clutch

pedal and accelerating,

D Clutch itself is free from any abnormal condition.

Gearshift or Select Lever (Transmission)

Check gear shift or select lever for smooth shifting to all positions and for good performance of transmission in any position. With automatic transmission equipped vehicle, also check that shift indicator indicates properly according to which position select lever is shifted to.

Brake

[Foot brake] Check the following;

D that brake pedal has proper travel, D that brake works properly, D that it is free from noise, D that vehicle does not pull to one side when brake is

applied, D and that brake do not drag. [Parking brake and automatic transmission “P” (Park) mechanism] Check that parking brake lever has proper travel.

WARNING: With vehicle parked on a fairly steep slope, make sure nothing is in the way downhill to avoid any personal injury or property damage. Be prepared to apply regular brake quickly even if vehicle should start to move.

Check to ensure that parking brake is fully effective when the vehicle is stopped on the safe slope and brake lever is pulled all the way. Make sure that vehicle is at complete stop when select lever is shifted to “P” range position and all brakes are released.

Page 22

MAINTENANCE AND LUBRICATION 0B-19

Engine oil or water resistance chassis grease

Steering

D Check to ensure that steering wheel is free from in-

stability, or abnormally heavy feeling.

D Check that the vehicle does not wander or pull to

one side.

Engine

D Check that engine responds readily at all speeds. D Check that engine is free from abnormal noise and

abnormal vibration.

Body, Wheels and Power Transmitting System

Check that body, wheels and power transmitting system are free from abnormal noise and abnormal vibration or any other abnormal condition.

Meters and Gauge

Check that speedometer, odometer, fuel meter, temperature gauge, etc. are operating accurately.

Lights

Check that all lights operate properly.

Windshield Defroster

Periodically check that air comes out from defroster outlet when operating heater or air conditioning. Set fan switch lever to “HI” position for this check.

RECOMMENDED FLUIDS AND LUBRICANTS

Engine oil

Engine coolant (Ethylene glycol base coolant) “Anti-freeze/ Anti-corrosion coolant”

Brake fluid DOT4 or SAE J1704

Manual transmission oil API GL-4, SAE75W-90 (Refer to Section 7A for detail)

Automatic transmission fluid An equivalent of DEXRON

Door hinges

Hood latch assembly

Key lock cylinder Spray lubricant

SE, SF, SG, SH or SJ (Refer to engine oil viscosity chart in item 1-4.)

-III

Page 23

AIR CONDITIONING (OPTIONAL) 1B-1

SECTION 1B

AIR CONDITIONING (OPTIONAL)

WARNING: For vehicles equipped with Supplemental Restraint (Air Bag) System: D Service on and around the air bag system components or wiring must be performed only by an autho-

D Technical service work must be started at least 90 seconds after the ignition switch is turned to the

“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).

CAUTION: The air conditioning system of this vehicle uses refrigerant HFC-134a (R-134a). None of refrigerant, compressor oil and component parts is interchangeable between two types of A/ C: one using refrigerant CFC-12 (R-12) and the other using refrigerant HFC-134a (R-134a). Be sure to check which refrigerant is used before any service work including inspection and maintenance. For identification between these two types, refer to “GENERAL DESCRIPTION” in the same section of the Service Manual mentioned in FOREWORD of this manual. When replenishing or changing refrigerant and compressor oil and when replacing parts, make sure that the material or the part to be used is appropriate to the A/ C installed in the vehicle being serviced. Use of incorrect one will result in leakage of refrigerant, damage in parts or other faulty condition.

NOTE: D For descriptions (items) not found in this section, refer to the same section of the Service Manual men-

tioned in FOREWORD of this manual.

D For basic servicing method of the air conditioning system that is not described in this section, refer to

AIR CONDITIONING BASIC MANUAL (99520-02130).

CONTENTS

DIAGNOSIS 1B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wiring Circuit 1B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A/ C System Inspection of ECM and Its Circuits 1B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 24

1B-2 AIR CONDITIONING (OPTIONAL)

WIRING CIRCUIT

DIAGNOSIS

1. Main fuse box

2. Main relay

3. Radiator (and condenser) cooling fan motor relay

4. Radiator (and condenser) cooling fan motor

5. Ignition switch

6. Circuit fuse box

7. A / C switch

8. Dual pressure switch

9. Blower fan motor relay

10. Blower fan motor

11. Blower fan motor resistor

12. Blower fan switch

13. A / C evaporator thermistor

14. ECT sensor

15. Compressor relay

16. Compressor

Page 25

AIR CONDITIONING (OPTIONAL) 1B-3

Fig. A

Fig. B

A/C SYSTEM INSPECTION OF ECM AND ITS CIRCUITS

ECM and its Circuits can be checked at ECM wiring couplers by measuring voltage.

CAUTION: ECM cannot be checked by itself. It is strictly prohibited to connect voltmeter or ohmmeter to ECM with couplers disconnected from it.

Voltage Check

1) Remove ECM (1) from vehicle.

2) Connect ECM (1) couplers to ECM.

3) Check voltage at each terminal of couplers connected. Refer to next page and “INSPECTION OF ECM AND ITS CIRCUIT” in Section 6E1.

NOTE: As each terminal voltage is affected by the battery voltage, confirm that it is 11 V or more when ignition switch is ON.

TERMINAL ARRANGEMENT OF ECM COUPLER (VIEWED FROM HARNESS SIDE)

E21 E23 E22

a. To “A / C 10 A” fuse in

circuit fuse box

b. To “HEATER 25 A”

fuse in circuit fuse box

c. To “IG COIL 15 A”

fuse in circuit fuse box

d. To “FI 20 A” fuse in

main fuse box

e. To “RDTR 30 A”

fuse in main fuse box

1. A / C switch

2. Dual pressure switch

3. Blower fan motor relay

4. Blower fan motor

5. Blower fan motor resistor

6. Blower fan switch

7. A / C evaporator thermistor

8. ECT sensor

9. Compressor relay

10. Compressor

11. Main relay

12. Radiator (and condenser) cooling fan motor relay

13. Radiator (and condenser) cooling fan motor

14. ECM

Page 26

1B-4 AIR CONDITIONING (OPTIONAL)

cooling fan relay

(Fig. B)

E21-22

Bl/ B

Main relay

E21-23

magnet clutch

E22-09

G/R

thermistor temp

E22-19

Lg/ R

A/C switch input

E23-07

Y/G

temperature

ECM VOLTAGE VALUES TABLE FOR RELATION OF A/C CONTROL

Terminal Wire Circuit

E21-01 B

E21-02 B/R

E21-13 B/Y

E21-15 B/R

E21-20 Bl

E21-26 B/Y

E23-09 Br/ W Sensor ground

E23-15 P/Bl

Main ground for ECM

Power supply for engine control

ECM ground for power circuit

Power supply for engine control

Radiator (condenser)

output

Compressor

relay output

ECM ground for power circuit

Evaporator

input

Engine coolant

sensor input

Blower fan speed input

Measurement

ground

Ground to body (Fig. A)

Ground to engine Fig. B)

Ground to body (Fig. A)

Ground to engine (Fig. B)

Ground to engine

Ground to engine (Fig. B)

Ground to body (Fig. A)

Ground to engine (Fig. B)

Ground to body (Fig. A)

Ground to engine (Fig. B)

Normal value Condition

–0.3 – 0.3 V Ignition switch ON

10 – 14 V Ignition switch ON

–0.3 – 0.3 V Ignition switch ON

10 – 14 V Ignition switch ON

A/ C switch ON or engine coolant

0 – 1 V

10 – 14 V

0 – 1 V Ignition switch ON

10 – 14 V Ignition switch OFF

0 – 1 V

10 – 14 V

–0.3 – 0.3 V Ignition switch ON

2.0 – 2.3 V

(1800 – 2200 Ω)

3.5 – 3.6 V

(6300 – 7000 Ω)

0 – 1 V

10 – 14 V

0.71 – 0.76 V

(290 – 320 Ω)

0.35 – 0.37 V

(136 – 144 Ω)

–0.3 – 0.3 V Ignition switch ON

0 – 2 V

3 – 5 V

10 – 14 V

temp. sensor more than 96_C (205_F) with engine running

Except the above-mentioned with engine running

Blower switch and A/ C switch ON with engine running

Except the above-mentioned with engine running

Evaporator thermistor temp. at Approx. 25_C (77_F) with ignition switch ON

Evaporator thermistor temp. at Approx. 0_C (32_F) with ignition switch ON

A/ C switch ON with ignition switch ON

A/ C switch OFF with ignition switch ON

Engine coolant temperature at Approx. 80_C (176_F) with ignition ON

Engine coolant temperature at Approx. 110_C (230_F) with ignition ON

Blower switch 2nd, 3rd or 4th position with ignition switch ON

Blower switch 1st position with ignition switch ON

Blower switch OFF position with ignition switch ON

Page 27

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-1

SECTION 6-1

GENERAL INFORMATION AND ENGINE DIAGNOSIS

WARNING: For vehicles equipped with Supplemental Restraint (Air Bag) System: D Service on and around the air bag system components or wiring must be performed only by an autho-

D Technical service work must be started at least 90 seconds after the ignition switch is turned to the

“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).

6-1

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ENGINE MECHANICAL 6A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ENGINE COOLING 6B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ENGINE FUEL 6C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ENGINE AND EMISSION CONTROL SYSTEM 6E1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

IGNITION SYSTEM 6F-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CRANKING SYSTEM 6G2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CHARGING SYSTEM 6H-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CONTENTS

GENERAL INFORMATION 6-1- 3. . . . . . . . . . . . . .

Statement on Cleanliness and Care 6-1- 3. . . . .

General Information on Engine Service 6-1- 3. .

Precaution on Fuel System Service 6-1- 4. . . . .

Fuel Pressure Relief Procedure 6-1- 5. . . . . . . .

Fuel Leakage Check Procedure 6-1- 5. . . . . . . .

ENGINE DIAGNOSIS 6-1- 6. . . . . . . . . . . . . . . . . . .

General Description 6-1- 6. . . . . . . . . . . . . . . . . . .

On-Board Diagnostic System 6-1- 6. . . . . . . . . .

Precaution in Diagnosing Trouble 6-1- 9. . . . . . .

Engine Diagnostic Flow Table 6-1-10. . . . . . . . . .

Customer Problem Inspection From 6-1-12. . . . .

Malfunction Indicator Lamp Check 6-1-13. . . . . .

Diagnostic Trouble Code Check 6-1-13. . . . . . . .

Diagnostic Trouble Code Clearance 6-1-14. . . . .

Diagnostic Trouble Code Table 6-1-15. . . . . . . . .

Fail-safe Table 6-1-17. . . . . . . . . . . . . . . . . . . . . . .

Visual Inspection 6-1-18. . . . . . . . . . . . . . . . . . . . .

Engine Basic Inspection 6-1-19. . . . . . . . . . . . . . .

Engine Diagnosis Table 6-1-21. . . . . . . . . . . . . . .

Scan Tool Data 6-1-28. . . . . . . . . . . . . . . . . . . . . . .

Scan Tool Data Definitions 6-1-30. . . . . . . . . . . . .

Inspection of ECM (PCM) and Its

Circuits 6-1-32. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltage Check 6-1-32. . . . . . . . . . . . . . . . . . . . .

Resistance Check 6-1-36. . . . . . . . . . . . . . . . . .

Component Location 6-1-37. . . . . . . . . . . . . . . . . .

Table A-1 MIL Circuit Check

(Lamp does not come on) 6-1-38. . . . . . . . . . . .

Table A-2 MIL Circuit Check

(Lamp remains ON) 6-1-39. . . . . . . . . . . . . . . . . .

Table A-3 ECM (PCM) Power and

Ground Circuit Check 6-1-40. . . . . . . . . . . . . . . .

Page 28

6-1-2 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC P0105 MAP Circuit Malfunction 6-1-42. . . .

DTC P0110 IAT Circuit Malfunction 6-1-44. . . . .

DTC P0115 ECT Circuit Malfunction 6-1-46. . . .

DTC P0120 Throttle Position Circuit

Malfunction 6-1-48. . . . . . . . . . . . . . . . . . . . . . . . .

DTC P0121 Throttle Position Circuit

Range/ Performance Problem 6-1-50. . . . . . . . .

DTC P0130 HO2S Circuit Malfunction

(Sensor-1) 6-1-52. . . . . . . . . . . . . . . . . . . . . . . . . .

DTC P0133 HO2S Circuit Slow

Response (Sensor-1) 6-1-53. . . . . . . . . . . . . . . .

DTC P0135 HO2S Heater Circuit

Malfunction (Sensor-1) 6-1-55. . . . . . . . . . . . . . .

DTC P0136 HO2S Circuit Malfunction

(Sensor-2) 6-1-57. . . . . . . . . . . . . . . . . . . . . . . . . .

DTC P0141 HO2S Heater Circuit

Malfunction (Sensor-2) 6-1-60. . . . . . . . . . . . . . .

DTC P0171 Fuel System Too Lean 6-1-62. . . . .

DTC P0172 Fuel System Too Rich 6-1-62. . . . . .

DTC P0300 Random Misfire Detected 6-1-66. . . DTC P0301 Cylinder 1 Misfire

Detected 6-1-66. . . . . . . . . . . . . . . . . . . . . . . . . . .

DTC P0302 Cylinder 2 Misfire

Detected 6-1-66. . . . . . . . . . . . . . . . . . . . . . . . . .

DTC P0303 Cylinder 3 Misfire

Detected 6-1-66. . . . . . . . . . . . . . . . . . . . . . . . . .

DTC P0335 CKP Sensor Circuit

Malfunction 6-1-70. . . . . . . . . . . . . . . . . . . . . . . .

DTC P0340 CMP Sensor Circuit

Malfunction 6-1-72. . . . . . . . . . . . . . . . . . . . . . . .

DTC P0420 Catalyst System

Efficiency Below Threshold 6-1-74. . . . . . . . . . .

DTC P0443 Purge Control Valve

Circuit Malfunction 6-1-77. . . . . . . . . . . . . . . . . . .

DTC P0480 Radiator Fan Control

System Malfunction 6-1-78. . . . . . . . . . . . . . . . . .

DTC P0500 Vehicle Speed Sensor

Malfunction 6-1-80. . . . . . . . . . . . . . . . . . . . . . . . .

DTC P0505 Idle Control System

Malfunction 6-1-82. . . . . . . . . . . . . . . . . . . . . . . . .

DTC P0510 Closed Throttle Position

Switch Malfunction 6-1-84. . . . . . . . . . . . . . . . . .

DTC P0601 Internal Control Module

Memory Check Sum Error 6-1-85. . . . . . . . . . . .

DTC P1250 EFE Heater Circuit

Malfunction 6-1-86. . . . . . . . . . . . . . . . . . . . . . . . .

DTC P1450 Barometric Pressure

Sensor Low/ High Input 6-1-88. . . . . . . . . . . . . .

DTC P1451 Barometric Pressure

Sensor Performance Problem 6-1-88. . . . . . . . .

DTC P1500 Engine Starter Signal

Circuit Malfunction 6-1-89. . . . . . . . . . . . . . . . . . .

DTC P1510 ECM (PCM) Back-up

Power Supply Malfunction 6-1-90. . . . . . . . . . . .

Table B-1 Fuel Injector Circuit Check 6-1-91. . . .

Table B-2 Fuel Pump and Its Circuit

Check 6-1-93. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table B-3 Fuel Pressure Check 6-1-95. . . . . . . . .

Table B-4 A/C Signal Circuits Check 6-1-97. . . .

SPECIAL TOOL 6-1-99. . . . . . . . . . . . . . . . . . . . . . .

Page 29

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-3

GENERAL INFORMATION

STATEMENT ON CLEANLINESS AND CARE

An automobile engine is a combination of many machined, honed, polished and lapped surfaces with tolerances that are measured in the thousands of an millimeter (ten thousands of an inch). Accordingly, when any internal engine parts are serviced, care and cleanliness are important. Throughout this section, it should be understood that proper clean-

1. No.1 cylinder

2. No.2 cylinder

3. No.3 cylinder

ing and protection of machined surfaces and friction areas is part of the repair procedure. This is considered standard shop practice even if not specifically stated. D A liberal coating of engine oil should be applied to friction areas

during assembly to protect and lubricate the surfaces on initial operation.

D Whenever valve train components, pistons, piston rings, con-

necting rods, rod bearings, and crankshaft journal bearings are removed for service, they should be retained in order. At the time of installation, they should be installed in the same locations and with the same mating surfaces as when removed.

D Battery cables should be disconnected before any major work is

performed on the engine. Failure to disconnect cables may result in damage to wire harness or other electrical parts.

D Throughout this manual, the three cylinders of the engine are

identified by numbers; No.1 (1), No.2 (2) and No.3 (3) counted from crankshaft pulley side to flywheel side.

GENERAL INFORMATION ON ENGINE SERVICE

THE FOLLOWING INFORMATION ON ENGINE SERVICE SHOULD BE NOTED CAREFULLY, AS IT IS IMPORTANT IN PREVENTING DAMAGE, AND IN CONTRIBUTING TO RELIABLE ENGINE PERFORMANCE. D When raising or supporting engine for any reason, do not use a

jack under oil pan. Due to small clearance between oil pan and oil pump strainer, jacking against oil pan may cause it to be bent against strainer resulting in damaged oil pick-up unit.

D It should be kept in mind, while working on engine, that 12-volt

electrical system is capable of violent and damaging short circuits. When performing any work where electrical terminals can be grounded, ground cable of the battery should be disconnected at battery.

D Any time the air cleaner, throttle body or intake manifold is re-

moved, the intake opening should be covered. This will protect against accidental entrance of foreign material which could follow intake passage into cylinder and cause extensive damage when engine is started.

Page 30

6-1-4 GENERAL INFORMATION AND ENGINE DIAGNOSIS

HOSE CONNECTION

With short pipe, fit hose as far as it reaches pipe joint as shown.

Hose

Pipe

Clamp

With following type pipe, fit hose as far as its peripheral projection as shown.

With bent pipe, fit hose as its bent part as shown or till pipe is about 20 to 30 mm (0.79–1.18 in.) into the hose.

With straight pipe, fit hose till pipe is, about 20 to 30 mm (0.79–1.18 in.) into the hose.

Clamps securely at a position 3 to 7 mm (0.12–0.27 in.) from hose end.

Clamp securely at a position 3 to 7 mm (0.12–0.27 in.) from hose end.

Hose

PRECAUTION ON FUEL SYSTEM SERVICE

D Work must be done with no smoking, in a well-ventilated area and

away from any open flames.

D As fuel feed line (between fuel pump and fuel delivery pipe) is still

under high fuel pressure even after engine was stopped, loosening or disconnecting fuel feed line directly may cause dangerous spout of fuel to occur where loosened or disconnected. Before loosening or disconnecting fuel feed line, make sure to release fuel pressure according to “FUEL PRESSURE RELIEF PROCEDURE”. A small amount of fuel may be released after the fuel line is disconnected. In order to reduce the chance of personal injury, cover the fitting to be disconnected with a shop cloth. Put that cloth in an approved container when disconnection is completed.

D Never run engine with fuel pump relay disconnected when engine

and exhaust system are hot.

D Fuel or fuel vapor hose connection varies with each type of pipe.

When reconnecting fuel or fuel vapor hose, be sure to connect and clamp each hose correctly referring to left figure Hose Connection. After connecting, make sure that it has no twist or kink.

D When installing injector or fuel delivery pipe, lubricate its O-ring

with spindle oil or gasoline.

D When connecting fuel pipe flare nut, first tighten flare nut by hand

and then tighten it to specified torque.

20 to 30 mm (0.79–1.18 in.)

Clamp

Clamp securely at a position 3 to 7mm (0.12–0.27 in.) from hose end.

Page 31

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-5

FUEL PRESSURE RELIEF PROCEDURE

CAUTION: This work must not be done when engine is hot. If done so, it may cause adverse effect to catalyst.

After making sure that engine is cold, release fuel pressure as follows.

1) Place transmission gear shift lever in “Neutral” (Shift selector lever to “P” range for A/ T model), set parking brake, and block drive wheels.

2) Remove relay box cover.

3) Disconnect fuel pump relay (1) from relay box.

4) Remove fuel filler cap to release fuel vapor pressure in fuel tank and then reinstall it.

5) Start engine and run it till it stops for lack of fuel. Repeat cranking engine 2-3 times for about 3 seconds each time to dissipate fuel pressure in lines. Fuel connections are now safe for servicing.

6) Upon completion of servicing, connect fuel pump relay to relay box and install relay box cover.

FUEL LEAKAGE CHECK PROCEDURE

After performing any service on fuel system, check to make sure that there are no fuel leakages as follows.

1) Turn ON ignition switch for 2 seconds (to operate fuel pump) and then turn it OFF. Repeat this (ON and OFF) 3 or 4 times and apply fuel pressure to fuel line. (till fuel pressure is felt by hand placed on fuel feed hose.)

2) In this state, check to see that there are no fuel leakages from any part of fuel system.

Page 32

6-1-6 GENERAL INFORMATION AND ENGINE DIAGNOSIS

ENGINE DIAGNOSIS

GENERAL DESCRIPTION

This vehicle is equipped with an engine and emission control system which are under control of ECM (PCM). The engine and emission control system in this vehicle are controlled by ECM (PCM). ECM (PCM) has an OnBoard Diagnostic system which detects a malfunction in this system and abnormality of those parts that influence the engine exhaust emission. When diagnosing engine troubles, be sure to have full understanding of the outline of “On-Board Diagnostic System” and each item in “Precaution in Diagnosing Trouble” and execute diagnosis ac- cording to “ENGINE DIAGNOSTIC FLOW TABLE”. There is a close relationship between the engine mechanical, engine cooling system, ignition system, exhaust system, etc. and the engine and emission control system in their structure and operation. In case of an engine trouble, even when the malfunction indicator lamp (MIL) doesn’t turn ON, it should be diagnosed according to this flow table.

ON-BOARD DIAGNOSTIC SYSTEM

ECM (PCM) in this vehicle has following functions. D When the ignition switch is turned ON with the engine at a stop,

malfunction indicator lamp (MIL) (1) turns ON to check the bulb of the malfunction indicator lamp (1).

D When ECM (PCM) detects a malfunction which gives an adverse

effect to vehicle emission while the engine is running, it makes the malfunction indicator lamp (1) in the meter cluster of the instrument panel turn ON or flash (flashing only when detecting a misfire which can cause damage to the catalyst) and stores the malfunction area in its memory. (If it detects that continuously 3 driving cycles are normal after detecting a malfunction, however, it makes MIL (1) turn OFF although DTC stored in its memory will remain.)

D As a condition for detecting a malfunction in some areas in the

system being monitored by ECM (PCM) and turning ON the malfunction indicator lamp (1) due to that malfunction, 2 driving cycle detection logic is adopted to prevent erroneous detection.

D When a malfunction is detected, engine and driving conditions

then are stored in ECM (PCM) memory as freeze frame data. (For the details, refer to description on Freeze frame data.)

D It is possible to communicate by using not only SUZUKI scan tool

(Tech-1) (2) but also generic scan tool. (Diagnostic information can be accessed by using a scan tool.)

Page 33

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-7

Warm-up Cycle

A warm-up cycle means sufficient vehicle operation such that the coolant temperature has risen by at least 22_C (40_F) from engine starting and reaches a minimum temperature of 70_C (160_F).

Driving Cycle

A “Driving Cycle” consists of engine startup, driving mode where a malfunction would be detected if present and engine shutoff.

2 Driving Cycles Detection Logic

The malfunction detected in the first driving cycle is stored in ECM (PCM) memory (in the form of pending DTC and freeze frame data) but the malfunction indicator lamp does not light at this time. It lights up at the second detection of same malfunction also in the next driving cycle.

Pending DTC

Pending DTC means a DTC detected and stored temporarily at 1 driving cycle of the DTC which is detected in the 2 driving cycles detection logic.

An Example of Freeze Frame Data

1. Trouble Code P0102 (1st)

2. Engine Speed 782 RPM

3. Eng Cool Tmp. 80_C

4. Vehicle Spd. 0 km/h

5. MAP Sensor 39 kPa

6. St. Term FT1 – 0.8% Lean

7. Lg. Term FT1 – 1.6% Lean

8. Fuel 1 Stat. Closed Loop

9. Fuel 2 Stat. Not used

Freeze Frame Data

ECM (PCM) stores the engine and driving conditions (in the from of data as shown at the left) at the moment of the detection of a malfunction in its memory. This data is called “Freeze frame data”. Therefore, it is possible to know engine and driving conditions (e.g., whether the engine was warm or not, where the vehicle was running or stopped, where air/ fuel mixture was lean or rich) when a malfunction was detected by checking the freeze frame data. Also, ECM (PCM) has a function to store each freeze frame data for three different malfunctions in the order as the malfunction is detected. Utilizing this function, it is possible to know the order of malfunctions that have been detected. Its use is helpful when rechecking or diagnosing a trouble.

Priority of freeze frame data:

ECM (PCM) has 4 frames where the freeze frame data can be stored. The first frame stores the freeze frame data of the malfunction which was detected first. However, the freeze frame data stored in this frame is updated according to the priority described below. (If malfunction as described in the upper square “1” below is detected while the freeze frame data in the lower square “2” has been stored, the freeze frame data “2” will be updated by the freeze frame data “1”.)

10. Load value 25.5%

1st, 2nd or 3rd in parentheses here represents which position in the order the malfunction is detected.

PRIORITY

FREEZE FRAME DATA IN FRAME 1

Freeze frame data at initial detection of malfunction among misfire detected (P0300-P0303), fuel system too lean (P0171) and fuel system too rich (P0172)

Freeze frame data when a malfunction other than those in “1” above is detected

Page 34

6-1-8 GENERAL INFORMATION AND ENGINE DIAGNOSIS

FRAME

In the 2nd through the 4th frames, the freeze frame data of each malfunction is stored in the order as the malfunction is detected. These data are not updated. Shown in the table below are examples of how freeze frame data are stored when two or more malfunctions are detected.

FRAME 1 FRAME 2 FRAME 3 FRAME 4

FREEZE FRAME MALFUNCTION DETECTED ORDER

DATA

to be updated

No malfunction No freeze frame data

1st FREEZE

FRAME DATA

2nd FREEZE

FRAME DATA

3rd FREEZE

FRAME DATA

P0400 (EGR)

detected

P0171 (Fuel

system) detected

P0300 (Misfire)

detected

P0301 (Misfire)

detected

B+

Body ground

ECM ground

Serial data line (K line of ISO 9141)

Data at P0400 detection

Data at P0171 detection

Data at P0400 detection

Data at P0171 detection

– –

–

Data at P0300 detection

Freeze frame data clearance:

The freeze frame data is cleared at the same time as clearance of diagnostic trouble code (DTC).

Data Link Connector (DLC)

DLC (1) is in compliance with SAEJ1962 in its installation position, the shape of connector and pin assignment.

Serial data line (K line of ISO 9141) is used for SUZUKI scan tool (Tech-1) or generic scan tool to communicate with ECM (PCM).

Page 35

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-9

PRECAUTION IN DIAGNOSING TROUBLE

D Don’t disconnect couplers from ECM (PCM), battery cable from

battery, ECM (PCM) ground wire harness from engine or main fuse before confirming diagnostic information (DTC, freeze frame data, etc.) stored in ECM (PCM) memory. Such disconnection will erase memorized information in ECM (PCM) memory.

D Diagnostic information stored in ECM (PCM) memory can be

cleared as well as checked by using SUZUKI scan tool (Tech-1) or generic scan tool. Before using scan tool, read its Operator’s (Instruction) Manual carefully to have good understanding as to what functions are available and how to use it.

D Priorities for diagnosing troubles.

If two or more DTCs are stored, proceed to the flow table of the DTC which has detected earliest in the order and follow the instruction in that table. If no instructions are given, troubleshoot diagnostic trouble codes according to the following priorities.

1. Diagnostic trouble codes (DTCs) other than DTC P0171/ P0172 (Fuel system too lean/ too rich) and DTC P0300 / P0301/ P0302 /P0303 (Misfire detected)

2. DTC P0171/ P0172 (Fuel system too lean/ too rich)

3. DTC P0300/ P0301/ P0302/ P0303 (Misfire detected)

D Be sure to read “Precautions for Electrical Circuit Service” in Sec-

tion 0A before inspection and observe what is written there.

D ECM (PCM) Replacement

When substituting a known-good ECM (PCM), check for following conditions. Neglecting this check may cause damage to a knowngood ECM (PCM). – Resistance value of all relays, actuators is as specified respec-

tively.

– MAP sensor and TP sensor are in good condition and none of

power circuits of these sensors is shorted to ground.

Page 36

6-1-10 GENERAL INFORMATION AND ENGINE DIAGNOSIS

ENGINE DIAGNOSTIC FLOW TABLE

Refer to the following pages for the details of each step.

STEP

1 Customer Complaint Analysis

1) Perform customer complaint analysis referring to the next page.

Was customer complaint analysis performed?

2 Diagnostic Trouble Code (DTC) and Freeze Frame Data

Check, Record and Clearance

1) Check for DTC (including pending DTC) referring to the next page.

Is there any DTC(s)?

3 Visual Inspection

1) Perform visual inspection referring to the next page.

Is there any faulty condition?

4 Visual Inspection

1) Perform visual inspection referring to the next page.

Is there any faulty condition?

5 Trouble Symptom Confirmation

1) Confirm trouble symptom referring to the next page.

Is trouble symptom identified?

6 Rechecking and Record of DTC /Freeze Frame Data

1) Recheck for DTC and freeze frame data referring to “DTC Check” section.

Is there any DTC(s)?

7 Rechecking and Record of DTC /Freeze Frame Data

1) Recheck for DTC and freeze frame data referring to “DTC Check” section.

Is there any DTC(s)?

8 Engine Basic Inspection and Engine Diag. Table

1) Check and repair according to “Engine Basic Check” and “Engine Diag. Table” section.

Are check and repair complete?

9 Trouble shooting for DTC

1) Check and repair according to applicable DTC diag. flow table.

Are check and repair complete?

10 Check for Intermittent Problems

1) Check for intermittent problems referring to the next page.

Is there any faulty condition?

11 Final Confirmation Test

1) Clear DTC if any.

2) Perform final confirmation test referring to the next page.

Is there any problem symptom, DTC or abnormal condition?

ACTION YES NO

Go to Step 2. Perform customer

complaint analysis.

1) Print DTC and freeze frame data or write them down and clear them by referring to “DTC Clearance” section.

2) Go to Step 3.

1) Repair or replace malfunction part.

2) Go to Step 11.

Go to Step 6. Go to Step 7.

Go to Step 9.

Go to Step 11. 1) Check and repair

1) Repair or replace malfunction part(s).

2) Go to Step 11.

Go to Step 6. End.

Go to Step 4.

Go to Step 5.

Go to Step 8.

Go to Step 10.

malfunction part(s).

2) Go to Step 11.

Go to Step 11.

Page 37

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-11

1. CUSTOMER COMPLAINT ANALYSIS

Record details of the problem (failure, complaint) and how it occurred as described by the customer. For this purpose, use of such an inspection form will facilitate collecting information to the point required for proper analysis and diagnosis.

2. DIAGNOSTIC TROUBLE CODE (DTC) /FREEZE FRAME DATA CHECK, RECORD AND CLEARANCE

First, check DTC (including pending DTC), referring to “DTC check” section. If DTC is indicated, print it and freeze frame data or write them down and then clear them by referring to “DTC clearance” section. DTC indicates malfunction that occurred in the system but does not indicate whether it exists now or it occurred in the past and the normal condition has been restored now. To check which case applies, check the symptom in question according to Step 4 and recheck DTC according to Step 5. Attempt to diagnose a trouble based on DTC in this step only or failure to clear the DTC in this step will lead to incorrect diagnosis, trouble diagnosis of a normal circuit or difficulty in troubleshooting.

NOTE: If only Immobilizer DTCs (P1620 – P1623) are indicated in this step, perform trouble diagnosis according to “Diagnosis” in Section 8G.

3. and 4. VISUAL INSPECTION

As a preliminary step, be sure to perform visual check of the items that support proper function of the engine referring to “Visual Inspection” section.

5. TROUBLE SYMPTOM CONFIRMATION

Based on information obtained in Step 1 Customer complaint analysis and Step 2 DTC/ freeze frame data check, confirm trouble symptoms. Also, reconfirm DTC according to “DTC Confirmation Procedure” described in each DTC Diagnosis section.

6. and 7. RECHECKING AND RECORD OF DTC/ FREEZE FRAME DATA

Refer to “DTC check” section for checking procedure.

8. ENGINE BASIC INSPECTION AND ENGINE DIAGNOSIS TABLE

Perform basic engine check according to the “Engine Basic Inspection Flow Table” first. When the end of the flow table has been reached, check the parts of the system suspected as a possible cause referring to ENGINE DIAGNOSIS FLOW TABLE and based on symptoms appearing on the vehicle (symptoms obtained through steps of customer complaint analysis, trouble symptom confirmation and/ or basic engine check) and repair or replace faulty parts, if any.

9. TROUBLESHOOTING FOR DTC (See each DTC Diag. Flow Table)

Based on the DTC indicated in Step 5 and referring to the applicable DTC diag. flow table in this section, locate the cause of the trouble, namely in a sensor, switch, wire harness, connector, actuator, ECM (PCM) or other part and repair or replace faulty parts.

10. CHECK FOR INTERMITTENT PROBLEM

Check parts where an intermittent trouble is easy to occur (e.g., wire harness, connector, etc.), referring to “INTERMITTENT AND POOR CONNECTION” in Section 0A and related circuit of DTC recorded in Step 2.

11. FINAL CONFIRMATION TEST

Confirm that the problem symptom has gone and the engine is free from any abnormal conditions. If what has been repaired is related to the DTC, clear the DTC once, perform DTC confirmation procedure and confirm that no DTC is indicated.

Page 38

6-1-12 GENERAL INFORMATION AND ENGINE DIAGNOSIS

CUSTOMER PROBLEM INSPECTION FORM (EXAMPLE)

User name: Model: VIN:

Date of issue: Date Reg. Date of problem: Mileage:

PROBLEM SYMPTOMS

j Difficult Starting j No cranking j No initial combustion j No combustion j Poor starting at

(jcold jwarm jalways)

j Other

j Poor Idling j Poor fast idle j Abnormal idling speed

(jHigh jLow) ( r/ min.) j Unstable j Hunting ( r /min. to r /min.) j Other

j OTHERS:

j Poor Driveability j Hesitation on acceleration j Back fire/ jAfter fire j Lack of power j Surging j abnormal knocking j Other

j Engine Stall when j Immediately after start j Accel. pedal is depressed j Accel. pedal is released j Load is applied

j A/C jElectric load jP/S j Other

j Other

VEHICLE/ENVIRONMENTAL CONDITION WHEN PROBLEM OCCURS

Weather Temperature Frequency Road

jFair jCloudy jRain jSnow jAlways jOther jHot jWarm jCool jCold ( _F/ _C) jAlways jAlways jSometimes ( times/ day, month) jOnly once jUnder certain condition jUrban jSuburb jHighway jMountainous (jUphill jDownhill) jTarmacadam jGravel jOther

Engine condition

Vehicle condition

jCold jWarming up phase jWarmed up jAlways jOther at starting jImmediately after start jRacing without load jEngine speed ( r/ min.)

During driving: jConstant speed jAccelerating jDecelerating jRight hand corner jLeft hand corner jWhen shifting (Lever position ) jAt stop jVehicle speed when problem occurs ( km/h, Mile/ h) jOther

Malfunction indicator lamp condition

Diagnostic trouble code

Environmental Condition

Vehicle Condition

jAlways ON jSometimes ON jAlways OFF jGood condition

First check: jNo code jMalfunction code ( )

Second check: jNo code jMalfunction code ( )

NOTE: The above form is a standard sample. It should be modified according to conditions characteristic of each market.

Page 39

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-13

MALFUNCTION INDICATOR LAMP (MIL) CHECK

1) Turn ON ignition switch (but the engine at stop) and check that MIL lights. If MIL does not light up (or MIL dims), go to “Diagnostic Flow Table A-1” for troubleshooting.

2) Start engine and check that MIL turns OFF. If MIL remains ON and no DTC is stored in ECM (PCM), go to “Diagnostic Flow Table A-2” for troubleshooting.

DIAGNOSTIC TROUBLE CODE (DTC) CHECK

1) Prepare SUZUKI scan tool (Tech-1) or generic scan tool.

2) With ignition switch OFF, connect it to data link connector (DLC) (1) located on underside of instrument panel at driver’s seat side.

Special Tool: (A): SUZUKI scan tool (B): Mass storage cartridge (C): 16/ 14 pin DLC cable

3) Turn ignition switch ON and confirm that MIL lights.

4) Read DTC, pending DTC and freeze frame data according to instructions displayed on scan tool and print it or write it down. Refer to scan tool operator’s manual for further details. If communication between scan tool and ECM (PCM) is not possible, check if scan tool is communicable by connecting it to ECM (PCM) in another vehicle. If communication is possible in this case, scan tool is in good condition. Then check data link connector and serial data line (circuit) in the vehicle with which communication was not possible.

5) After completing the check, turn ignition switch off and disconnect scan tool from data link connector.

Page 40

6-1-14 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DIAGNOSTIC TROUBLE CODE (DTC) CLEARANCE

1) Connect SUZUKI scan tool (Tech-1) or generic scan tool to data

2) Turn ignition switch ON.

3) Erase DTC and pending DTC according to instructions dis-

4) After completing the clearance, turn ignition switch off and dis-

link connector in the same manner as when making this connection for DTC check.

played on scan tool. Refer to scan tool operator’s manual for further details.

connect scan tool from data link connector.

NOTE: DTC and freeze frame data stored in ECM (PCM) memory are also cleared in following cases. Be careful not to clear them before keeping their record. D When power to ECM (PCM) is cut off (by disconnecting

battery cable, removing fuse or disconnecting ECM (PCM) connectors for 30 sec. or longer)

D When the same malfunction (DTC) is not detected again

during 40 engine warm-up cycles.

Page 41

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-15

P0302

Cylinder 2 misfire detected

DIAGNOSTIC TROUBLE CODE (DTC) TABLE

DTC

NO.

P0105

P0110

P0115

P0120

P0121

P0130

P0133

P0134

P0135

P0136

P0141

P0171 Fuel system too lean

P0172 Fuel system too rich

P0300 P0301

P0303

DETECTING ITEM

Manifold absolute pressure circuit malfunction

Intake air temp. circuit malfunction

Engine coolant temp. circuit malfunction

Throttle position circuit malfunction

Throttle position circuit performance problem

HO2S circuit malfunction (Sensor-1)

HO2S circuit slow response (Sensor-1)

HO2S circuit no activity detected (Sensor-1)

HO2S heater circuit malfunction (Sensor-1)

HO2S circuit malfunction (Sensor-2)

HO2S heater circuit malfunction (Sensor-2)

Random misfire detected Cylinder 1 misfire detected

Cylinder 3 misfire detected

DETECTING CONDITION

(DTC will set when detecting:)

Low pressure-high vacuum-low voltage (or MAP sensor circuit shorted to ground) High pressure-low vacuum-high voltage (or MAP sensor circuit open)

Intake air temp. circuit low input Intake air temp. circuit high input

Engine coolant temp. circuit low input Engine coolant temp. circuit high input

Throttle position circuit low input Throttle position circuit high input

Poor performance of TP sensor 2 driving cycles

Min. output voltage of HO2S-higher than specification Max. output voltage of HO2S-lower than specification

Response time of HO2S-1 output voltage between rich and lean is longer than specification.

HO2S-1 output voltage is high or low continuously.

Terminal voltage is lower than specification at heater OFF or it is higher at heater ON.

Max. voltage of HO2S-2 is lower than specification or its min. voltage is higher than specification

Terminal voltage is lower than specification at heater OFF or it is higher at heater ON. (or heater circuit or short)

Short term fuel trim or total fuel trim (short and long terms added) is larger than specification for specified time or longer. (fuel trim toward rich side is large.)

Short term fuel trim or total fuel trim (short and long term added) is smaller than specification for specified time or longer. (fuel trim toward lean side is large.)

Misfire of such level as to cause damage to three way catalyst

Misfire of such level as to deteriorate emission but not to cause damage to three way catalyst

MIL

1 driving cycle

2 driving cycles

MIL flashing

during misfire

detection

2 driving cycles

Page 42

6-1-16 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC

NO.

P0335

P0340

P0420

P0443

P0480

P0500

DETECTING ITEM

Crankshaft position sensor circuit malfunction

Camshaft position sensor circuit malfunction

Catalyst system efficiency below threshold

EVAP Purge control valve circuit malfunction

Radiator fan control circuit malfunction

Vehicle speed sensor malfunction

P0505 Idle control system malfunction

P0510

P1250

P1450

P1451

P1500

P1510

Closed throttle position switch malfunction

Early Fuel Evaporation Heater Circuit Malfunction

Barometric pressure sensor circuit malfunction

Barometric pressure sensor performance problem

Starter signal circuit malfunction

ECM (PCM) backup power source malfunction

P1620 ECU code not registered

P1621

No ECU code transmitted from Immobilizer Control Module

P1622 Fault in ECM (PCM)

P1623 ECU code not matched

DETECTING CONDITION

(DTC will set when detecting:)

MIL

No signal during engine running 1 driving cycle

No signal for 2 sec. during engine cranking 1 driving cycle

Output waveforms of HO2S-1 and HO2S-2 are similar. (Time from output voltage change of HO2S-1

2 driving cycles to that of HO2S-2 is shorter than specification.)

Purge control valve circuit is open or shorted to ground

2 driving cycles

Radiator cooling fan relay terminal voltage is low when cooling temp. is lower than

2 driving cycles specification

No signal while running in “D” range or during fuel cut at decelerating

2 driving cycles

Throttle opening change is small as compared with electrically live time. Throttle valve opening is not within its target range with CTP switch ON

1 driving cycle or drive voltage exists though ECM (PCM) is not outputting ISC drive command.

Switch does not change from ON to OFF (or from OFF to ON) even when vehicle speed

2 driving cycle reaches over (or below) specification.

Heater monitor terminal voltage is higher than specified value when EFE OFF or it is lower

2 driving cycles

than specified value when EFE ON.

Barometric pressure is lower or higher than specification. (or sensor malfunction)

1 driving cycle

Difference between manifold absolute pressure (MAP sensor value) and barometric pressure (barometric pressure

2 driving cycles sensor value) is larger than specification during cranking.

Starter signal is not inputted from engine cranking till its start and after or it is always

2 driving cycles inputted

No backup power after starting engine 1 driving cycle

Refer to Section 8G.

Page 43

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-17

FAIL-SAFE TABLE

When any of the following DTCs is detected, ECM (PCM) enters fail-safe mode as long as malfunction continues to exist but that mode is canceled when ECM (PCM) detects normal condition after that.

DTC NO.

P0105

P0110 Intake air temp. circuit malfunction

P0115 Engine coolant temp. circuit malfunction

P0120 Throttle position circuit malfunction

P0500 Vehicle speed sensor malfunction ECM (PCM) stops idle air control.

P1450

Manifold absolute pressure circuit malfunction

Barometric pressure sensor low/ high input

DETECTED ITEM FAIL-SAFE OPERATION

D ECM (PCM) uses value determined by throttle

opening and engine speed.

D ECM (PCM) stops EVAP purge control.

ECM (PCM) controls actuators assuming that intake air temperature is 20_C (68_F).

D ECM (PCM) controls actuators assuming that

engine coolant temperature is 80_C (176_F).

D ECM (PCM) operates radiator fan. D ECM (PCM) stops A/ C and idle speed control.

D ECM (PCM) controls actuators assuming that

throttle opening is 20_.

D ECM (PCM) stops idle speed control.

ECM (PCM) controls actuators assuming that barometric pressure is 100 kPa (760 mmHg).

Page 44

6-1-18 GENERAL INFORMATION AND ENGINE DIAGNOSIS

VISUAL INSPECTION

Visually check following parts and systems.

INSPECTION ITEM

D Engine oil ––––– level, leakage D Engine coolant ––––– level, leakage D Fuel ––––– level, leakage D A/ T fluid ––––– level, leakage D Air cleaner element ––––– dirt, clogging D Battery ––––– fluid level, corrosion of terminal D Water pump belt ––––– tension, damage D Throttle cable ––––– play, installation D Vacuum hoses of air intake system ––––– disconnection,

looseness, deterioration, bend

D Connectors of electric wire harness ––––– disconnection, friction D Fuses ––––– burning D Parts ––––– installation, bolt ––––– looseness D Parts ––––– deformation D Other parts that can be checked visually

Also check following items at engine start, if possible

D Malfunction indicator lamp D Charge warning lamp D Engine oil pressure warning lamp D Engine coolant temp. meter D Fuel level meter D Tachometer, if equipped D Abnormal air being inhaled from air intake system D Exhaust system ––––– leakage of exhaust gas, noise D Other parts that can be checked visually

Operation

REFERRING SECTION

Section 0B Section 0B Section 0B Section 0B Section 0B

Section 0B Section 6E1

Section 8

Section 6 Section 6H Section 8 (section 6A for pressure check) Section 8 Section 8

Page 45

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-19

ENGINE BASIC INSPECTION

This check is very important for troubleshooting when ECM (PCM) has detected no DTC and no abnormality has been found in visual inspection. Follow the flow table carefully.

STEP

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.

2 Check battery voltage.

Is it 11 V or more?

3 Is engine cranked? Go to Step 4. Go to “DIAGNOSIS”

4 Does engine start? Go to Step 5. Go to Step 7.

5 Check idle speed as follows.

1) Warm up engine to normal operating temp.

2) Shift transmission to neutral position for M /T (“P” position for A/ T).

3) All of electrical loads are switched off.

4) Check engine idle speed with scan tool. See Fig. 1.

Is it 750 – 850 r/ min.?

6 Check ignition timing as follows.

1) Select “MISC” mode on SUZUKI scan tool and fix ignition timing to initial one. See Fig. 2.

2) Using timing light (1), check initial ignition timing. See Fig. 3.

Is it 5_ ± 3_ BTDC at specified idle speed?

7 Check immobilizer system malfunction as follows.

1) Check immobilizer indicator lamp for flashing.

Is it flashing when ignition switch is turned to ON position?

8 Check fuel supply as follows.

1) Check to make sure that enough fuel is filled in fuel tank.

2) Turn ON ignition switch for 2 seconds and then OFF. See Fig. 4.

Is fuel return pressure (returning sounds) felt from fuel feed hose (1) when ignition switch is turned ON?

9 Check fuel pump for operating.

1) Was fuel pump operating sound heard from fuel filler for about 2 seconds after ignition switch ON and stop?

10 Check ignition spark as follows.

1) Disconnect injector coupler.

2) Remove spark plugs and connect them to high tension cords.

3) Ground spark plugs.

4) Crank engine and check if each spark plug sparks.

Is it in good condition?

11 Check fuel injector for operation as follows.

1) Install spark plugs and connect injector connectors.

2) Check that fuel is injected out in conical shape from fuel injector when cranking.

Is it in good condition?

ACTION YES NO

FLOW TABLE”.

Go to Step 3. Charge or replace

battery.

in Section 6G.

Go to Step 6. Go to “ENGINE

DIAGNOSIS TABLE”.

Go to “ENGINE DIAGNOSIS TABLE”.

Go to “DIAGNOSIS” in Section 8G.

Go to Step 10. Go to Step 9.

Go to “DIAG. FLOW TABLE B-3”.

Go to Step 11. Go to “DIAGNOSIS”

Go to “ENGINE DIAGNOSIS TABLE”.

Check ignition control related parts referring to Section 6F.

Go to Step 8.

Go to “DIAG. FLOW TABLE B-2”.

in Section 6F.

Go to “DIAG. FLOW TABLE B-1”.

Page 46

6-1-20 GENERAL INFORMATION AND ENGINE DIAGNOSIS

Fig. 1 for Step 5 Fig. 2 for Step 6 Fig. 3 for Step 6

Select “DATA LIST” mode

Fig. 4 for Step 8 Fig. 5 for Step 11

SELECT MENU F4: MISC TEST

Page 47

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-21

ENGINE DIAGNOSIS TABLE

Perform troubleshooting referring to following table when ECM (PCM) has detected no DTC and no abnormality has been found in visual inspection and engine basic inspection previously.

Condition

Hard Starting (Engine cranks OK)

Possible Cause Referring Item

Ignition system out of order

D Faulty spark plug D Leaky high-tension cord D Loose connection or disconnection of high-

tension cords or lead wires

D Faulty ignition coil

Fuel system out of order

D Dirty or clogged fuel hose or pipe D Malfunctioning fuel pump D Air inhaling from intake manifold gasket or

throttle body gasket

D Fuel injector resistor malfunction

Engine and emission control system out of order

D Faulty idle control system D Faulty ECT sensor or MAP sensor

D Faulty ECM (PCM)

Low compression

D Poor spark plug tightening or faulty gasket D Compression leak from valve seat D Sticky valve stem

Spark plugs in Section 6F High-tension cords in Section 6F High-tension cords in Section 6F

Ignition coil in Section 6F

Diagnostic Flow Table B-3 Diagnostic Flow Table B-3

Fuel injector resistor in Section 6E1

Diagnostic Flow Table P0505 ECT sensor or MAP sensor in Section 6E1

Compression check in Section 6A Spark plugs in Section 6F Valves inspection in Section 6A Valves inspection in Section 6A

D Weak or damaged valve springs

D Compression leak at cylinder head gasket

D Sticking or damaged piston ring

D Worn piston, ring or cylinder

Others

D Malfunctioning PCV valve

Valve springs inspection in Section 6A Cylinder head inspection in Section 6A Cylinders, pistons and piston rings inspection in Section 6A Cylinders, pistons and piston rings inspection in Section 6A

PCV system in Section 6E1

Page 48

6-1-22 GENERAL INFORMATION AND ENGINE DIAGNOSIS

Condition Possible Cause Referring Item

Low oil pressure D Improper oil viscosity

Engine oil and oil filter change in Section 0B

D Malfunctioning oil pressure switch

Oil pressure switch inspection in Section 8

D Clogged oil strainer

Oil pan and oil pump strainer cleaning in Section 6A

D Functional deterioration of oil pump D Worn oil pump relief valve

Oil pump in Section 6A Oil pump in Section 6A

D Excessive clearance in various sliding parts

Engine noise

Note: Before checking mechanical noise, make sure that: D Specified spark

plug is used.

D Specified fuel is

used.

Valve noise

D Improper valve lash D Worn valve stem and guide D Weak or broken valve spring

D Warped or bent valve

Piston, ring and cylinder noise

D Worn piston, ring and cylinder bore

Valve lash in Section 6A Valves inspection in Section 6A Valve springs inspection in Section 6A Valves inspection in Section 6A

Pistons and cylinders inspection in Section 6A

Connecting rod noise

D Worn rod bearing

Crank pin and connecting rod bearing inspection in Section 6A

D Worn crank pin

Crank pin and connecting rod bearing inspection in Section 6A

D Loose connecting rod nuts

Connecting rod installation in Section 6A

D Low oil pressure

Previously outlined

Crankshaft noise

D Low oil pressure D Worn bearing

Previously outlined Crankshaft and bearing inspection in Section 6A

D Worn crankshaft journal

Crankshaft and bearing inspection in Section 6A

D Loose bearing cap bolts

Crankshaft inspection in Section 6A

D Excessive crankshaft thrust play

Crankshaft thrust play inspection in Section 6A

Page 49

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-23

Condition Possible Cause Referring Item

Overheating D Inoperative thermostat

D Poor water pump performance D Clogged or leaky radiator D Improper engine oil grade

Thermostat in Section 6B Water pump in Section 6B Radiator in Section 6B Engine oil and oil filter change in Section 0B

D Clogged oil filter or oil strainer D Poor oil pump performance D Faulty radiator fan control system

Oil pressure check in Section 6A Oil pressure check in Section 6A Radiator fan control system in Section 6E1 Trouble diagnosis in Section 5 Trouble diagnosis in Section 7C Cylinder head in Section 6A

High-tension cords in Section 6F Spark plugs in Section 6F

Poor gasoline mileage

D Dragging brakes D Slipping clutch D Blown cylinder head gasket

Ignition system out of order

D Leaks or loose connection of high-tension cord D Faulty spark plug (improper gap, heavy deposits

and burned electrodes, etc.)

Engine and emission control system out of order

D High idle speed

Refer to item “Improper engine idle speed” previously outlined

D Poor performance of TP sensor, ECT sensor or

MAP sensor

D Faulty fuel injector D Faulty fuel injector resistor

TP sensor, ECT sensor or MAP sensor in Section 6E1 Diagnostic Flow Table B-1 Fuel injector resistor in Section 6E1

D Faulty ECM (PCM)

Low compression

Previously outlined

Others

Excessive engine oil consumption

D Poor valve seating D Dragging brakes D Slipping clutch D Thermostat out of order D Improper tire pressure

Oil leakage

D Blown cylinder head gasket D Leaky camshaft oil seals

Valves inspection in Section 6A Trouble diagnosis in Section 5 Trouble diagnosis in Section 7C Thermostat in Section 6B Refer to Section 3F

Cylinder head in Section 6A Camshaft in Section 6A

Oil entering combustion chamber

D Sticky piston ring D Worn piston and cylinder

Piston cleaning in Section 6A Pistons and cylinders inspection in Section 6A

D Worn piston ring groove and ring D Improper location of piston ring gap D Worn or damaged valve stem seal

Pistons inspection in Section 6A Pistons assembly in Section 6A Valves removal and installation in Section 6A

D Worn valve stem

Valves inspection in Section 6A

Page 50

6-1-24 GENERAL INFORMATION AND ENGINE DIAGNOSIS

Condition Possible Cause Referring Item

Engine hesitates

(Momentary lack of response as accelerator is depressed. Can occur at all vehicle speeds. Usually most severe when first trying to make vehicle move, as from a stop sign.)

Surge

(Engine power variation under steady throttle or cruise. Feels like vehicle speeds up and down with no change in accelerator pedal.)

Ignition system out of order

D Spark plug faulty or plug gap out of adjustment D Leaky high-tension cord

Fuel system out of order

D Fuel pressure out of specification

Engine and emission control system out of order

D Poor performance of TP sensor, ECT sensor or

MAP sensor

D Faulty fuel injector D Faulty ECM (PCM)

Engine overheating Low compression

Ignition system out of order

D Leaky or loosely connected high-tension cord D Faulty spark plug (excess carbon deposits,

improper gap, and burned electrodes, etc.)

Fuel system out of order

D Variable fuel pressure D Kinky or damaged fuel hose and lines D Faulty fuel pump (clogged fuel filter)

Engine and emission control system out of

Spark plugs in Section 6F High-tension cords in Section 6F

Diagnostic Flow Table B-3 Trouble diagnosis in Section 6-1

TP sensor, ECT sensor or MAP sensor in Section 6E1 Diagnostic Flow Table B-1

Refer to “Overheating” section Previously outlined

High-tension cords in Section 6F Spark plugs in Section 6F

Diagnostic Flow Table B-3

order

D Poor performance of MAP sensor D Faulty fuel injector

MAP sensor in Section 6E1 Diagnostic Flow Table B-1

D Faulty ECM (PCM)

Excessive detonation

(Engine makes continuously sharp metallic knocks that change with throttle opening. Sounds like pop corn popping.)

Engine overheating Ignition system out of order

D Faulty spark plug D Loose connection of high-tension cord

Fuel system out of order

D Clogged fuel filter (faulty fuel pump) or fuel lines D Air inhaling from intake manifold or throttle body

gasket

Engine and emission control system out of

Refer to “Overheating” section

Spark plugs in Section 6F High-tension cords in Section 6F

Diagnostic Flow Table B-1 or B-2

Trouble diagnosis in Section 6-1

order

D Poor performance of ECT sensor or MAP sensor

ECT sensor or MAP sensor in Section 6E1

D Faulty fuel injector

Diagnostic Flow Table B-1

D Faulty ECM (PCM) D Excessive combustion chamber deposits

Piston and cylinder head cleaning in Section 6A

Page 51

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-25

Condition Possible Cause Referring Item

Engine has no power

Ignition system out of order

D Faulty spark plug D Faulty ignition coil with ignitor D Leaks, loose connection or disconnection of

Spark plugs in Section 6F Ignition coil in Section 6F High-tension cords in Section 6F

high-tension cord

Engine overheating

Refer to “Overheating” section

Fuel system out of order

D Clogged fuel hose or pipe

Diagnostic Flow Table B-3 in Section 6-1

D Malfunctioning fuel pump

Diagnostic Flow Table B-2

D Air inhaling from intake manifold gasket or

throttle body gasket

Engine and emission control system out of order

D Maladjusted accelerator cable play

Accelerator cable play in Section 6E1

D Poor performance of TP sensor, ECT sensor or

MAP sensor

D Faulty fuel injector

TP sensor, ECT sensor or MAP sensor in Section 6E1 Diagnostic Flow Table B-1

D Faulty ECM (PCM)

Low compression

Previously outlined

Others

D Dragging brakes D Slipping clutch

Trouble diagnosis in Section 5 Trouble diagnosis in Section 7C

Page 52

6-1-26 GENERAL INFORMATION AND ENGINE DIAGNOSIS

Condition Possible Cause Referring Item

Improper engine idling or engine fails to idle

Ignition system out of order

D Faulty spark plug D Leaky or disconnected high-tension cord D Faulty ignition coil with ignitor

Spark plugs in Section 6F High-tension cords in Section 6F Ignition coil in Section 6F

Fuel system out of order

D Fuel pressure out of specification

Diagnostic Flow Table B-3 in Section 6-1

D Leaky manifold, throttle body, or cylinder head

gasket

Engine and emission control system out of order

D Faulty idle control system D Faulty evaporative emission control system

Diagnostic Flow Table P0505 EVAP control system in Section 6E1

D Faulty fuel injector D Faulty fuel injector resistor D Poor performance of ECT sensor, TP sensor or

MAP sensor

Diagnostic Flow Table B-1 Fuel injector resistor in Section 6E1 ECT sensor, TP sensor or MAP sensor in Section 6E1

D Faulty ECM (PCM)

Engine overheating Low compression

Refer to “Overheating” section Previously outlined

Others

D Loose connection or disconnection of vacuum

hoses

D Malfunctioning PCV valve D Faulty A/ C signal circuit

PCV system in Section 6E1 Diagnostic Flow Table B-4

Page 53

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-27

Condition Possible Cause Referring Item

Excessive hydrocarbon (HC) emission or carbon monoxide (CO)

Ignition system out of order

D Faulty spark plug D Leaky or disconnected high-tension cord D Faulty ignition coil with ignitor

Spark plugs in Section 6F High-tension cords in Section 6F Ignition coil assembly in Section 6F

Low compression

Refer to “Low compression” section

Engine and emission control system out of order

D Lead contamination of three way catalytic

converter

D Faulty evaporative emission control system

Check for absence of filler neck restrictor EVAP control system in Section 6E1

D Fuel pressure out of specification

Diagnostic Flow Table B-3

D Closed loop system (A/ F feed back

compensation) fails

– Faulty TP sensor – Poor performance of ECT sensor or MAP

sensor

D Faulty injector D Faulty fuel injector resistor

TP sensor in Section 6E1 ECT sensor or MAP sensor in Section 6E1 Diagnostic Flow Table B-1 Fuel injector resistor in Section 6E1

D Faulty ECM (PCM)

Others

D Engine not at normal operating temperature D Clogged air cleaner D Vacuum leaks

Excessive nitrogen oxides (NOx) emission

Ignition system out of order

D Improper ignition timing

Engine and emission control system out of

See section 6F1

order

D Lead contamination of catalytic converter

Check for absence of filler neck restrictor.

D Fuel pressure out of specification

Diagnostic Flow Table B-3

D Closed loop system (A/ F feed back

compensation) fails

– Faulty TP sensor – Poor performance of ECT sensor or MAP

sensor

D Faulty injector D Faulty fuel injector resistor

TP sensor in Section 6E1 ECT sensor or MAP sensor in Section 6E1 Diagnostic Flow Table B-1 Fuel injector resistor in Section 6E1

D Faulty ECM (PCM)

Page 54

6-1-28 GENERAL INFORMATION AND ENGINE DIAGNOSIS

( RATE)

(ABSOLUTE

SCAN TOOL DATA

As the data values given below are standard values estimated on the basis of values obtained from the normally operating vehicles by using a scan tool, use them as reference values. Even when the vehicle is in good condition, there may be cases where the checked value does not fall within each specified data range. Therefore, judgment as abnormal should not be made by checking with these data alone. Also, conditions in the below table that can be checked by the scan tool are those detected by ECM (PCM) and output from ECM (PCM) as commands and there may be cases where the engine or actuator is not operating (in the condition) as indicated by the scan tool. Be sure to use the timing light to check the ignition timing.

NOTE:

D With the generic scan tool, only star (l) marked data in the table below can be read. D When checking the data with the engine running at idle or racing, be sure to shift M/ T gear to the neutral

gear position and A/ T gear to the “Park” position and pull the parking brake fully. Also, if nothing or “no load” is indicated, turn OFF A/ C, all electric loads, P /S and all the other necessary switches.

l l

SCAN TOOL DATA VEHICLE CONDITION

FUEL SYSTEM B1 (FUEL SYSTEM STATUS)

CALC LOAD (CALCULATED LOAD VALUE)

COOLANT TEMP. (ENGINE COOLANT TEMP.)

SHORT FT BI (SHORT TERM FUEL TRIM)

LONG FT BI (LONG TERM FUEL TRIM)

MAP (INTAKE MANIFOLD ABSOLUTE PRESSURE)

ENGINE SPEED At idling with no load after warming up

VEHICLE SPEED At stop 0 km /h, 0 MPH IGNITION ADVANCE

(IGNITION TIMING ADVANCE FOR NO.1 CYLINDER)

INTAKE AIR TEMP. At specified idle speed after warming up

MAF (MASS AIR FLOW

THROTTLE POS

THROTTLE POSITION)

O2S B1 S1 (HEATED OXYGEN SENSOR-1)

O2S B1 S2 (HEATED OXYGEN SENSOR-2)

O2S FT B1 S1 At specified idle speed after warning up –20 – +20% DIS. WITH MIL ON —— ——

At specified idle speed after warming up CLOSED (closed loop)

At specified idle speed with no load after warming up

At 2500 r/ min with no load after warming up 10 – 18%

At specified idle speed after warming up 85 – 95_C, 185 – 203_F

At specified idle speed after warming up –20 – +20%

At specified idle speed after warming up –15 – +15%

At specified idle speed with no load after warming up

At 2500 r/ min with no load after warming up 3.0 – 6.0 gm / sec

Ignition switch ON/ engine stopped

At specified idle speed after warming up 0.05 – 0.95 V

When engine is running at 2000 r/ min. for 3 min. or longer after warming up.

Throttle valve fully closed 7 – 18%

Throttle valve fully open 70 – 90%

NORMAL CONDITION/

REFERENCE VALUES

3 – 5%

29 – 48 kPa,

220 – 360 mmHg

Desired idle speed

± 50 r/ min

–1 – 18_ BTDC

Ambient temp.

1.0 – 3.0 gm/ sec

+35_C (+63_F)

–5_C (–9_F)

0 – 0.95 V

Page 55

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-29

gg,

800 r/ min

( ON/ engine (

(CLOSED THROTTLE FUEL CUT

( ON

ELECTRIC LOAD A/C SWITCH

SCAN TOOL DATA CONDITION

NORMAL CONDITION/

REFERENCE VALUES

DESIRED IDLE At idling with no load after warming up, M / T (DESIRED IDLE SPEED)

TP SENSOR VOLT (THROTTLE POSITION SENSOR OUTPUT VOLTAGE)

INJ PULSE WIDTH (FUEL INJECTION PULSE WIDTH)

at neutral, A/ T at “P” range

Ignition switch

stopped

At specified idle speed with no load after warming up

Throttle valve fully closed More than 0.2 V

Throttle valve fully open Less than 4.8 V

0.8 – 2.3 msec.

At 2500 r/ min with no load after warming up 0.8 – 2.3 msec.

IAC FLOW DUTY (IDLE AIR CONTROL FLOW

At idling with no load after warming up 20 – 40%

DUTY) TOTAL FUEL TRIM At specified idle speed after warming up –35 – +35% BATTERY VOLTAGE Ignition switch ON/ engine stop 10 – 14 V CANIST PRG DUTY

(EVAP CANISTER

At specified idle speed after warming up

0 – 100%

PURGE FLOW DUTY)

CLOSED THROT POS

POSITION)

Throttle valve at idle position ON

Throttle valve opens larger than idle position OFF

When engine is at fuel cut condition ON Other than fuel cut condition OFF

Engine coolant temp.:

RAD FAN (RADIATOR FAN CONTROL RELAY)

Ignition switch

Lower than 91.5_C

(197_F)

Engine coolant temp.:

96_C (205_F) or higher

OFF

Ignition switch ON/ Headlight, small light, heater fan and rear window defogger all

OFF

turned OFF Ignition switch ON/ Headlight, small light,

heater fan or rear window defogger turned

FUEL TANK LEVEL

Engine running after warming up, A/ C not operating

Engine running after warming up, A/ C operating

––––––––––––

OFF

0 – 100%

BAROMETRIC PRESS –––––––––––– Display the barometric pressure

FUEL PUMP

Within 3 seconds after ignition switch ON or engine running

Engine stop at ignition switch ON. OFF

Page 56

6-1-30 GENERAL INFORMATION AND ENGINE DIAGNOSIS

SCAN TOOL DATA DEFINITIONS

FUEL SYSTEM (FUEL SYSTEM STATUS)

Air/ fuel ratio feedback loop status displayed as either open or closed loop. Open indicates that ECM (PCM) ignores feedback from the exhaust oxygen sensor. Closed indicates final injection duration is corrected for oxygen sensor feedback.

CALC LOAD (CALCULATED LOAD VALUE, %)

Engine load displayed as a percentage of maximum possible load. Value is calculated mathematically using the formula: actual (current) intake air volume B maximum possible intake air volume x 100%.

COOLANT TEMP. (ENGINE COOLANT TEMPERATURE, _C, _F)

It is detected by engine coolant temp. sensor

SHORT FT B1 (SHORT TERM FUEL TRIM, %)

Short term fuel trim value represents short term corrections to the air/ fuel mixture computation. A value of 0 indicates no correction, a value greater than 0 means an enrichment correction, and a value less than 0 implies an enleanment correction.

LONG FT B1 (LONG TERM FUEL TRIM, %)

Long term fuel trim Value represents long term corrections to the air/ fuel mixture computation. A value of 0 indicates no correction, a value greater than 0 means an enrichment correction, and a value less than 0 implies an enleanment correction.

MAF (MASS AIR FLOW RATE, gm/ s, lb/ min)

It represents total mass of air entering intake manifold which is computed based on signals from MAP sensor, IAT sensor, TP sensor, etc.

THROTTLE POS (ABSOLUTE THROTTLE POSITION, %)

When throttle position sensor is fully closed position, throttle opening is indicated as 0% and 100% full open position.

OXYGEN SENSOR B1 S1 (HEATED OXYGEN SENSOR-1, V)

It indicates output voltage of HO2S-1 installed on exhaust manifold (pre-catalyst).

OXYGEN SENSOR B1 S2 (HEATED OXYGEN SENSOR-2, V)

It indicates output voltage of HO2S-2 installed on exhaust pipe (post-catalyst). It is used to detect catalyst deterioration.

DESIRED IDLE (DESIRED IDLE SPEED, rpm)

The Desired Idle Speed is an ECM (PCM) internal parameter which indicates the ECM (PCM) requested idle. If the engine is not running, this number is not valid.

TP SENSOR VOLT (THROTTLE POSITION SENSOR OUTPUT VOLTAGE, V)

The Throttle Position Sensor reading provides throttle valve opening information in the form of voltage.

MAP (INTAKE MANIFOLD ABSOLUTE PRESSURE, kPa, inHg)

It is detected by manifold absolute pressure sensor and used (among other things) to compute engine load.

ENGINE SPEED (rpm)

It is computed by reference pulses from crankshaft position sensor.

VEHICLE SPEED (km/ h, MPH)

It is computed based on pulse signals from vehicle speed sensor.

IGNITION ADVANCE (IGNITION TIMING ADVANCE FOR NO.1 CYLINDER, _)

Ignition timing of NO.1 cylinder is commanded by ECM (PCM). The actual ignition timing should be checked by using the timing light.

INTAKE AIR TEMP. (_C, _F)

It is detected by intake air temp. sensor and used to determine the amount of air passing into the intake manifold as air density varies with temperature.

INJ PULSE WIDTH (FUEL INJECTION PULSE WIDTH, msec.)

This parameter indicates time of the injector drive (valve opening) pulse which is output from ECM (PCM) (but injector drive time of NO.1 cylinder for multiport fuel injection).

IAC FLOW DUTY (IDLE AIR (SPEED) CONTROL DUTY, %)

This parameter indicates opening of the throttle valve in terms of percentage to opening controllable by the ISC actuator.

TOTAL FUEL TRIM (%)

The value of Total Fuel Trim is obtained by putting values of short Term Fuel Trim and Long Term Fuel Trim together. This value indicates how much correction is necessary to keep the stoichiometric air/ fuel mixture.

BATTERY VOLTAGE (V)

This parameter indicates battery positive voltage inputted from main relay to ECM (PCM).

Page 57

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-31

CANIST PURGE DUTY (EVAP CANISTER PURGE FLOW DUTY, %)

This parameter indicates valve ON (valve open) time rate within a certain set cycle of EVAP purge solenoid valve which controls the amount of EVAP purge. 0% means that the purge valve is completely closed while 100% is a fully open valve.

CLOSED THROTTLE POSITION (ON/ OFF)

This parameter will read ON when throttle valve is fully closed, or OFF when the throttle is not fully closed.

FUEL CUT (ON/ OFF)

ON : Fuel being cut (output signal to injector is

stopped)

OFF : Fuel not being cut

RAD FAN (RADIATOR FAN CONTROL RELAY, ON/ OFF)

ON : Command for radiator fan control relay opera-

tion being output.

OFF : Command for relay operation not being out-

put.

ELECTRIC LOAD (ON/ OFF)

ON : Headlight, small light, heater fan or rear win-

dow defogger ON signal inputted.

OFF : Above electric loads all turned OFF.

A/ C SWITCH (ON/ OFF)

ON : Command for A/ C operation being output

from ECM (PCM) to A/ C amplifier.

OFF : Command for A/ C operation not being output.

FUEL TANK LEVEL (%)

This parameter indicates approximate fuel level in the fuel tank. As the detectable range of the fuel level sensor is set as 0 to 100%, however, with some models whose fuel tank capacity is smaller, the indicated fuel level may be only 70% even when the fuel tank is full.

PSP SWITCH (ON/OFF)

ON : PSP switch detects P/ S operation (high PS

pressure).

OFF : PSP switch not detects P/S operation.

BAROMETRIC PRESS (kPa, inHg)

This parameter represents a measurement of barometric air pressure and is used for altitude correction of the fuel injection quantity and ISC actuator control.

FUEL PUMP (ON/ OFF)

ON is displayed when the ECM (or PCM) activates the fuel pump via the fuel pump relay switch.

VSS (A/T) (km /h, MPH)

If is computed by using pulse signals from vehicle (output) speed sensor on automatic transmission.

TRANS RANGE (TRANSMISSION RANGE SENSOR, P, R, N, D, 2 OR L)

It is indicated transmission range detected by transmission range sensor.

SHIFT SOL 1-CON (SHIFT SOLENOID-1, ON/ OFF)

ON : ON command being output to shift solenoid-1 OFF : ON command not being output.

SHIFT SOL 2-CON (SHIFT SOLENOID-2, ON/ OFF)

ON : ON command being output to shift solenoid-2 OFF : ON command not being output.

SHIFT SOL 1-MON (SHIFT SOLENOID-1, ON/ OFF)

The monitor result of the shift solenoid-1 circuit is displayed. ON : Electricity being passed to shift solenoid-1 or

circuit open.

OFF : Electricity not being passed or circuit short.

SHIFT SOL 2-MON (SHIFT SOLENOID-2, ON/ OFF)

The monitor result of the shift solenoid-2 circuit is displayed. ON : Electricity being passed to shift solenoid-2 or

circuit open.

OFF : Electricity not being passed or circuit short.

THROT POS LEVEL (THROTTLE POSITION LEVEL FOR A/ T, “0”, “1”, “2”, “3”, “4”, “5”, “6” or “7”)

This parameter indicates which level (zone) the throttle valve opening is in. The throttle opening is divided into 8 levels (zones) from “0” (about idle posi- tion) to “7” (about full open) and signals are assigned to each opening level (zone). ECM (PCM) control the automatic gear change of the automatic transmission by using these signals according to the signal from the TP sensor.

GEAR POSITION

This parameter indicates the A/ T gear position which is computed on signals from the Transmission Range Switch, VSS, TP Sensor, and so forth.

Page 58

6-1-32 GENERAL INFORMATION AND ENGINE DIAGNOSIS

INSPECTION OF ECM (PCM) AND ITS CIRCUITS

ECM (PCM) and its circuits can be checked at ECM (PCM) wiring couplers by measuring voltage and resistance.

CAUTION: ECM (PCM) cannot be checked by itself. It is strictly prohibited to connect voltmeter or ohmmeter to ECM (PCM) with coupler disconnected from it.

Voltage Check

1) Remove ECM (PCM) (1) from body referring to Section 6E1.

2) Check voltage at each terminal of couplers (2) connected.

NOTE: As each terminal voltage is affected by the battery voltage, confirm that it is 11 V or more when ignition switch is ON.

3. Body ground

4. Service wire

111213

2526

181920212223

345678910

1617

1415

E22E21 E23

9101112

34567

131415

1112

202122910

1. ECM (PCM)

2. ECM (PCM) couplers (Viewed from harness side)

456

1617

131415

Page 59

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-33

8—Blank

9—Blank

PPL/ WHT

Malfunction indicator lamp

18—Blank

BLU

Radiator fan control relay

GRN

Fuel pump relay

TER-

MINAL

WIRE

COLOR

CIRCUIT

STANDARD

VOLTAGE

CONDITION

1 BLK ECM (PCM) ground – –

2 BLK/ RED Power source 10 – 14 V Ignition switch ON

3 — Blank — —

4 — Blank — —

5 — Blank — —

6 — Blank — —

7 RED / BLK EVAP canister purge valve 10 – 14 V Ignition switch ON

— —

10 YEL/ BLU Igniter (IGT) — —

11 GRN/ WHT ISC actuator — —

12 BLU /WHT Fuel injector 10 – 14 V Ignition switch ON

13 BLK/ YEL Ground — —

14 WHT /BLU Power source for back-up 10 – 14 V Ignition switch ON and OFF

15 BLK/ RED Power source 10 – 14 V Ignition switch ON

16 BLU /RED ISC actuator relay 0 – 1.0 V Ignition switch ON

0 – 2.0 V Ignition switch ON

10 – 14 V When engine running

— —

19 BLU /RED Heater of H02S-2 10 – 14 V Ignition switch ON

CONNECTOR “E21”

10 – 14 V

0.3 – 1.0 V

Ignition switch ON, Engine coolant temp: Below 91.5_C (197_F)

Ignition switch ON, Engine coolant temp: 96.0_C (205_F) or higher

0 – 1.3 V For 2 seconds after ignition switch ON

10 – 14 V After the above time

22 BLU/ BLK Main relay 0.4 – 1.5 V Ignition switch ON

23 ORN

A/ C compressor magnet clutch relay

10 – 14 V Ignition switch ON

24 GRN/RED ISC actuator — —

25 WHT/BLK EFE heater relay 10 – 14 V Ignition switch ON

26 BLK/ YEL Ground — —

Page 60

6-1-34 GENERAL INFORMATION AND ENGINE DIAGNOSIS

YEL/ RED

GRY

Throttle position sensor

RED/ WHT

EFE heater monitor

PNK/ BLU

g()

BLK/ YEL

TER-

MINAL

WIRE

COLOR

CIRCUIT

STANDARD

VOLTAGE

CONDITION

1 WHT/ GRN Power source for sensor 4.75 – 5.25 V Ignition switch ON

2 WHT Camshaft position sensor (+) — —

3 PNK

Crankshaft position sensor (+)

— —

Ignition switch ON, ISC actuator

0 – 1 V

Closed throttle position switch (In ISC actuator)

4 – 6 V

plunger is in contact with throttle lever screw

Ignition switch ON Plunger is apart from throttle lever screw

LT GRN /

RED

Manifold absolute pressure sensor

3.3 – 4.0 V

0.2 – 1.0 V

2.8 – 4.8 V

7 YEL/ GRN Engine coolant temp. sensor 0.55 – 0.95 V

Ignition switch ON Barometric pressure: 100 kPa, 760 mmHg

Ignition switch ON Throttle valve at idle position

Ignition switch ON Throttle valve at full open position

Ignition switch ON Engine coolant temp.: 80_C (176_F)

8 YEL Heater of H02S-1 10 – 14 V Ignition switch ON

9 BRN /WHT Ground for sensors — —

10 BLK Camshaft position sensor (–) — —

CONNECTOR “E23”

11 BLU

Crankshaft position sensor (–)

— —

0 – 1 V Heater relay OFF

10 – 14 V Heater relay ON

13 RED Heated oxygen sensor-1 Refer to DTC flow chart

Ignition switch ON

14 LT GRN Intake air temp. sensor 2.0 – 2.7 V

Sensor ambient temp. (Intake air temp): 20_C (68_F)

Ignition switch ON Blower fan switch ON

Ignition switch ON Blower fan switch OFF

Electric load signal (–) (Blower fan switch signal)

Engine start switch (Engine start signal)

0 – 2 V

10 – 14 V

6 – 12 V While engine cranking

0 – 1 V Other than above

Page 61

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-35

GRN/WHT

Stop lamp switch

(g g )

RED/ WHT

Electric load signal (+)

A/C (input) signal

TER-

MINAL

WIRE

COLOR

CIRCUIT

STANDARD

VOLTAGE

1 BRN /YEL Tachometer signal 0 – 1 V Ignition switch ON

Indicator

2 PPL Vehicle speed sensor

deflection

repeated 0 V and

Ignition switch ON Front left tire turned slowly with front right tire locked

4 – 6 V

3 — Blank — —

4 — Blank — —

5 — Blank — —

0 V

10 – 14 V

Ignition switch ON, Stop lamp switch OFF

Ignition switch ON, Stop lamp switch ON

7 — Blank — —

8 BLU Heated oxygen sensor-2 Refer to DTC flow chart

9 GRN /RED A /C evaporator temp. sensor — —

10 YEL/ RED Fuel level sensor (gauge)

0 – 2 V

Ignition switch ON, fuel tank fully filled

4.5 – 7.5 V Ignition switch ON, fuel tank emptied

11 — Blank — —

12 WHT / BLK Data link connector 10 – 14 V Ignition switch ON

CONNECTOR “E22”

13 — Blank — —

14 — Blank — —

15 — Blank — —

16 — Blank — —

17 — Blank — —

Ignition switch ON

0 –1 V

Headlight, small light and rear window defogger turned OFF

Ignition switch ON

10 – 14 V

Headlight, small light or rear window defogger turned ON

Ignition switch ON A/ C switch OFF

Ignition switch ON A/ C switch ON

LT GRN/

RED

10 – 14 V

0 – 2 V

20 BLK/ WHT Ignition switch 10 – 14 V Ignition switch ON

21 — Blank — —

22 BRN /WHT Ground for sensor — —

CONDITION

Page 62

6-1-36 GENERAL INFORMATION AND ENGINE DIAGNOSIS

RESISTANCE CHECK

1) Disconnect ECM (PCM) couplers from ECM (PCM) with ignition

2) Check resistance between each terminal of couplers discon-

1. ECM (PCM) coupler disconnected

2. Ohmmeter

switch OFF.

CAUTION: Never touch terminals of ECM (PCM) itself or connect voltmeter or ohmmeter.

nected.

CAUTION: D Be sure to connect ohmmeter probe from wire harness

side of coupler.

D Be sure to turn OFF ignition switch for this check. D Resistance in table below represents that when parts

temperature is 20_C (68_F).

TERMINALS CIRCUIT STANDARD RESISTANCE

E23-8 to E22-20 H02S-1 heater 11.7 – 14.3 Ω

E21-19 to E22-20 H02S-2 heater 11.7 – 14.3 Ω

E21-12 to E21-2/ 15 Fuel injector 2.4 – 3.6 Ω

E21-7 to E21-2/ 15 EVAP canister purge valve 30 – 34 Ω

E21-21 to E22-20 Fuel pump relay 100 – 120 Ω

E21-16 to E21-2/ 15 ISC actuator relay 100 – 120 Ω

E21-25 to E21-2/ 15 EFE heater relay 100 – 120 Ω

E21-20 to E21-2/ 15 Radiator fan control relay 100 – 120 Ω

E21-22 to E21-14 Main relay 100 – 120 Ω

E21-1 to Body ground Ground Continuity

E21-13 to Body ground Ground Continuity

E21-26 to Body ground Ground Continuity

Page 63

COMPONENT LOCATION

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-37

INFORMATION SENSORS

-1. MAP sensor

-2. TP sensor

-3. IAT sensor

-4. ECT sensor

-5. Heated oxygen sensor-1

-6. VSS

-7. Ignition coil

-8. Battery

-9. CMP sensor (in Distributor)

-10. Fuel level sensor (gauge) (in fuel tank)

-11. CKP sensor

-12. CTP switch (in ISC actuator)

-13. Heated oxygen sensor-2

-14. Stop lamp switch

-15. A / C EVAP temp. sensor (if equipped)

CONTROL DEVICES

a: Fuel injector b: EVAP canister purge valve c: Fuel pump relay d: Malfunction indicator lamp e: ISC actuator f: Radiator fan control relay g: Igniter h: EFE heater relay i: ISC actuator relay

OTHERS

A: ECM (PCM) B: Main relay C: EVAP canister D: Injector resistor E: EFE heater F: Data link connector

Page 64

6-1-38 GENERAL INFORMATION AND ENGINE DIAGNOSIS

TABLE A-1 MALFUNCTION INDICATOR LAMP CIRCUIT CHECK – LAMP DOES

NOT COME “ON” AT IGNITION SWITCH ON (BUT ENGINE AT STOP)

CIRCUIT DESCRIPTION

Malfunction indicator lamp in combination meter

Ignition switch

Main fuse

“IG COIL”

Main relay

When the ignition switch is turned ON, ECM (PCM) causes the main relay to turn ON (close the contact point). Then, ECM (PCM) being supplied with the main power, turns ON the malfunction indicator lamp (MIL). When the engine starts to run and no malfunction is detected in the system, MIL goes OFF but if a malfunction was or is detected, MIL remains ON even when the engine is running.

INSPECTION

STEP ACTION YES NO

1 MIL Power Supply Check

1) Turn ignition switch ON. Do other indicator/ warning lights in combination meter comes ON?

Go to Step 2. “IG COIL” fuse blown, main

fuse blown, ignition switch malfunction, “BLK/WHT” circuit between “IG COIL” fuse and combination meter or poor coupler connection at combination meter.

2 ECM (PCM) Power and Ground Circuit

Check Does engine start?

Go to Step 3. Go to TABLE A-3 ECM (PCM)

POWER AND GROUND CIRCUIT CHECK. If engine is not cranked, go to DIAGNOSIS in SECTION 6G.

3 MIL Circuit Check

1) Turn ignition switch OFF and disconnect connectors from ECM (PCM).

Substitute a knowngood ECM (PCM) and recheck.

Bulb burned out or “PPL/ WHT” wire circuit open.

2) Check for proper connection to ECM (PCM) at terminal E21-17.

3) If OK, then using service wire, ground terminal E21-17 in connector disconnected.

Does MIL turn on at ignition switch ON?

Page 65

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-39

TABLE A-2 MALFUNCTION INDICATOR LAMP CIRCUIT CHECK – LAMP

REMAINS “ON” AFTER ENGINE STARTS

WIRING DIAGRAM/ CIRCUIT DESCRIPTION – Refer to table A-1.

INSPECTION

STEP ACTION YES NO

1 Diagnostic Trouble Code (DTC) check

1) Check DTC referring to DTC CHECK section. Is there any DTC(s)?

2 DTC check

Start engine and recheck DTC while engine running. Is there any DTC(s)?

3 MIL Circuit check

1) Turn OFF ignition switch.

2) Disconnect connectors from ECM (PCM). Does MIL turn ON at ignition switch ON?

Go to Step 2 of ENGINE DIAG. FLOW TABLE.

“PPL/ WHT” wire circuit shorted to ground.

Go to Step 2.

Go to Step 3.

Substitute a known-good ECM (PCM) and recheck.

Page 66

6-1-40 GENERAL INFORMATION AND ENGINE DIAGNOSIS

TABLE A-3 ECM (PCM) POWER AND GROUND CIRCUIT CHECK – MIL

DOESN’T LIGHT AT IGNITION SWITCH ON AND ENGINE DOESN’T START THOUGH IT IS CRANKED UP

CIRCUIT DESCRIPTION

Malfunction indicator lamp in combination meter

Main relayIgnition switch

Main fuse

“IG COIL”

Relay box

When the ignition switch tuned ON, the main relay turns ON (the contact point closes) and the main power is supplied to ECM (PCM).

INSPECTION

STEP ACTION YES NO

1 Main Relay Operating Sound Check

Go to Step 5. Go to Step 2.

Is operating sound of main relay heard at ignition switch ON?

2 Main Relay Check

1) Turn OFF ignition switch and remove main relay (1).

Go to Step 3. Replace main

relay.

2) Check for proper connection to main relay (1) at terminal C and D.

3) Check resistance between each two terminals. See Fig. 1 and 2. Between terminals A and B: Infinity Between terminals C and D: 100 – 120 Ω

4) Check that there is continuity between terminals A and B when battery is connected to terminals C and D. See Fig. 3.

Is main relay in good condition?

3 Fuse Check

Is “FI” fuse (2) in good condition? See Fig. 4.

Go to Step 4. Check for short in

circuits connected to this fuse.

4 ECM (PCM) Power Circuit Check

1) Turn OFF ignition switch, disconnect connectors from ECM (PCM) and install main relay.

2) Check for proper connection to ECM (PCM) at terminals

Go to Step 5. “BLK/ WHT”,

“BLK/ YEL” or “BLU/ BLK” circuit

open.

E22-20, E21-2, E21-15 and E21-22.

3) If OK, then measure voltage between terminal E22-20 and ground, E21-22 and ground with ignition switch ON.

Is each voltage 10 – 14 V?

Page 67

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-41

STEP ACTION YES NO

5 ECM (PCM) Power Circuit Check

1) Using service wire, ground terminal E21-22 and measure voltage between terminal E21-2 and ground at ignition switch ON.

Is it 10 – 14 V?

Check ground circuits “BLK” and “BLK/ YEL” for open. If OK, then substitute a known-good ECM

Go to Step 6.

(PCM) and recheck.

6 Is operating sound of main relay heard in Step 1? Go to Step 7. “BLK /YEL” or

“BLK/ RED” wire open.

7 Main Relay Check

1) Check main relay according to procedure in Step 2.

“BLK/ YEL” or “BLK/ RED” wire

open.

Replace main relay.

Is main relay in good condition?

Fig. 1 for Step 2 Fig. 2 for Step 2 Fig. 3 for Step 2

Fig. 4 for Step 3

Page 68

6-1-42 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC P0105 MANIFOLD ABSOLUTE PRESSURE (MAP) CIRCUIT

MALFUNCTION

CIRCUIT DESCRIPTION

To TP sensor

MAP sensor

To other sensors

DTC DETECTING CONDITION POSSIBLE CAUSE

D MAP: 5 kPa, 37.5 mmHg or less

(Low pressure – High vacuums – Low voltage)

or D MAP: 130 kPa, 975 mmHg or more

(High pressure – Low vacuums – High voltage)

D “BRN/ WHT” circuit open D “WHT/ GRN” circuit open or shorted to

ground

D “LT GRN / RED” circuit open or shorted

to ground

D MAP sensor malfunction D ECM (PCM) malfunction

NOTE: D When DTC P0105, and/ or P0120, P0510 are indicated together, it is possible that “WHT/ GRN” circuit is

open.

D When DTC P0105, P0110, P0115 and/or P0120 are indicated together, it is possible that “BRN/ WHT” cir-

cuit is open.

DTC CONFIRMATION PROCEDURE

1) Clear DTC, start engine and keep it at idle for 1 min.

2) Select “DTC” mode on scan tool and check DTC.

Page 69

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-43

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE”

performed?

2 Check MAP Sensor and Its Circuit.

1) Connect scan tool to DLC with ignition switch OFF.

2) Turn ignition switch ON.

3) Check intake manifold pressure. See Fig. 1.

Go to Step 2. Go to “ENGINE DIAG.

FLOW TABLE”.

Go to Step 3. Intermittent trouble.

Check for intermittent referring to “INTERMITTENT AND POOR CONNECTION” in Section 0A.

Is it 130 kPa or more or 5 kPa or less?

3 Check Wire Harness.

1) Disconnect MAP sensor connector with ignition switch OFF.

2) Check for proper connection of MAP sensor at “LT GRN/ RED” and “BRN/ WHT” wire terminals.

3) If OK, then with ignition switch ON, check voltage at each of “WHT/ GRN” and “LT GRN/ RED” wire terminals. See Fig. 2.

Is voltage about 4 – 6 V at each terminal?

Go to Step 4. “WHT/ GRN” wire open or

shorted to ground circuit or shorted to power circuit, “LT GRN/ RED” wire open or shorted to ground, poor E23-5 connection or E23-1 connection. If wire and connection are OK, confirm that MAP sensor is normal and then substitute a known-good ECM (PCM) and recheck.

NOTE: When battery voltage is applied to “WHT/ GRN” wire, it is possible that MAP sensor is also faulty.

4 Check MAP sensor according to “MAP

Sensor Individual Check” in Section 6E1. Is it in good condition?

“WHT/ GRN” wire shorted to “LT GRN/ RED” wire, “BRN/ WHT” wire open,

Replace MAP sensor.

poor E23-9 connection. If wire and connection are OK, substitute a knowngood ECM (PCM) and recheck.

Fig. 1 for Step 2 Fig. 2 for Step 3

“LT GRN/ RED”

DLC

Scan tool

Page 70

6-1-44 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC P0110 INTAKE AIR TEMP. (IAT) CIRCUIT MALFUNCTION

CIRCUIT DESCRIPTION

IAT sensor

To other sensors

DTC DETECTING CONDITION POSSIBLE CAUSE

D Low intake air temperature (High voltage-High resistance) or

D High intake air temperature (Low voltage-Low resistance)

D “LT GRN” circuit open or shorted to power D “BRN/ WHT” circuit open D IAT sensor malfunction D ECM (PCM) malfunction

NOTE: D When DTC P0105, P0110, P0115 and P0120 are indicated together, it is possible that “BRN / WHT” circuit

is open.

D Before inspecting, be sure to check that ambient temperature is higher than –40_C (– 40_F).

DTC CONFIRMATION PROCEDURE

1) Clear DTC, start engine and keep it at idle for 1 min.

2) Select “DTC” mode no scan tool and check DTC.

Page 71

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-45

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.

FLOW TABLE”.

2 Check IAT Sensor and Its Circuit.

1) Connect scan tool to DLC with ignition switch OFF.

2) Turn ignition switch ON.

3) Check intake air temp. displayed on scan tool.

Go to Step 3. Intermittent trouble.

Check for intermittent referring to “Intermittent and Poor Connection” in Section 0A.

See Fig. 1.

Is –40_C (– 40_F) or 119_C (246_F) indicated?

3 Check Wire Harness.

1) Disconnect IAT sensor connector with ignition switch OFF.

2) Check for proper connection to IAT sensor at “BRN/ WHT” and “LT GRN” wire terminals.

3) If OK, then with ignition switch ON, is voltage applied to “LT GRN” wire terminal about 4 – 6 V? See Fig. 2.

Go to Step 4. “LT GR N” wire open or

shorted to power, or poor E23-14 connection. If wire and connection are OK, substitute a known-good ECM (PCM) and recheck.

4 Does scan tool indicate –40_C (–40_F) at Step 2. Go to Step 6. Go to Step 5.

5 Check Wire Harness.

1) Check intake air temp. displayed on scan tool with ignition switch ON.

Is –40_C (– 40_F) indicated?

Replace IAT sensor. “LT GRN” wire shorted

to ground. If wire is OK, substitute a known-good ECM (PCM) and recheck.

6 Check Wire Harness.

1) Using service wire, connect IAT sensor connector terminals.

2) Check intake air temp. displayed on scan tool with ignition switch ON. See Fig. 3.

Is 119_C (246_F) indicated?

Replace IAT sensor. “BRN/ WHT” wire open

or poor E23-9 connection. If wire and connection are OK, substitute a known-good ECM (PCM) and recheck.

Fig. 1 for Step 2 Fig. 2 for Step 3 Fig. 3 for Step 6

DLC

Scan tool

Page 72

6-1-46 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC P0115 ENGINE COOLANT TEMPERATURE (ECT) CIRCUIT

MALFUNCTION

CIRCUIT DESCRIPTION

ECT sensor

To combination (ECT) meter

To other sensors

DTC DETECTING CONDITION POSSIBLE CAUSE

D Low engine coolant temperature (High voltage-High resistance) or

D High engine coolant temperature (Low voltage-Low resistance)

D “YEL/ GRN” circuit open or shorted to

power

D “BRN/ WHT” circuit open D ECT sensor malfunction D ECM (PCM) malfunction

NOTE: Before inspecting, be sure to check that coolant temp. meter in combination meter indicates normal operating temperature (Engine is not overheating).

DTC CONFIRMATION PROCEDURE

1) Clear DTC, start engine and keep it at idle for 1 min.

2) Select “DTC” mode on scan tool and check DTC.

Page 73

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-47

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.

FLOW TABLE”.

2 Check ECT Sensor and Its Circuit.

1) Connect scan tool with ignition switch OFF.

2) Turn ignition switch ON.

3) Check engine coolant temp. displayed on scan tool. See Fig. 1.

Go to Step 3. Intermittent trouble.

Check for intermittent referring to “Intermittent and Poor Connection” in Section 0 A.

Is –40_C (– 40_F) or 119_C (246_F) indicated?

3 Check Wire Harness.

1) Disconnect ECT sensor connector with ignition switch OFF.

2) Check for proper connection to ECT sensor at “YEL/ GRN” and “BRN/ WHT” wire terminals.

3) If OK, then with ignition switch ON, is voltage applied to “YEL/ GRN” wire terminal about

Go to Step 4. “YEL /GRN” wire open

or shorted to power, or poor E23-7 connection. If wire and connection are OK, substitute a known-good ECM and recheck.

4 – 6 V? See Fig. 2.

4 Does scan tool indicate – 40_C (– 40_F) at Step 2. Go to Step 6. Go to Step 5.

5 Check Wire Harness.

1) Check engine coolant temp. displayed on scan tool with ignition switch ON.

Is –40_C (– 40_F) indicated?

Replace ECT sensor. “YEL / GRN” wire

shorted to ground. If wire is OK, substitute a known-good ECM and recheck.

6 Check Wire Harness.

1) Using service wire, connect ECT sensor connector terminals. See Fig. 3.

2) Turn ignition switch ON and check engine coolant temp. displayed on scan tool.

Is 119_C (246_F) indicated?

Replace ECT sensor. “BRN /WHT” wire open

or poor E23-9 connection. If wire and connection are OK, substitute a known-good ECM (PCM) and recheck.

Fig. 1 for Step 2 Fig. 2 for Step 3 Fig. 3 for Step 6

DLC

Scan tool

Page 74

6-1-48 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC P0120 THROTTLE POSITION CIRCUIT MALFUNCTION

CIRCUIT DESCRIPTION

To MAP sensor

Throttle position sensor

To other sensors

DTC DETECTING CONDITION POSSIBLE CAUSE

D Signal voltage high or

D Signal voltage low

D “BRN/ WHT” circuit open D “GRY” circuit open or shorted to ground D “WHT/ GRN” circuit open or shorted to power or

ground

D TP sensor malfunction D ECM (PCM) malfunction

NOTE: D When DTC P0105, P0110, P0115 and/or P0120 are indicated together, it is possible that “BRN/ WHT” cir-

cuit is open.

D When DTC P0105, P0120 and/ or P0510 are indicated together it is possible that “WHT / GRN” circuit is

open.

DTC CONFIRMATION PROCEDURE

1) Clear DTC, start engine and keep it at idle for 1 min.

2) Select “DTC” mode on scan tool and check DTC.

Page 75

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-49

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE”

performed?

2 Check TP Sensor and Its Circuit.

1) Connect scan tool to DLC with ignition switch OFF and then turn ignition switch ON.

2) Check throttle valve opening percentage

Go to Step 2. Go to “ENGINE DIAG.

FLOW TABLE”.

Go to Step 3. Intermittent trouble.

Check for intermittent referring to “Intermittent and Poor Connection” in Section 0 A.

displayed on scan tool. See Fig. 1.

Is it displayed 2% or less?

3) Check throttle valve opening percentage displayed on scan tool while opening throttle valve from idle position to full open position. See Fig. 1.

Is it displayed 96% or higher?

3 Check Wire Harness.

1) Disconnect connector from TP sensor with ignition switch OFF.

2) Check for proper connection to TP sensor at “WHT/ GRN”, “GRY” and “BRN/WHT” wire terminals.

3) If OK, then with ignition switch ON, check voltage at each of “WHT/ GRN” and “GRY” wire terminals. See Fig. 2.

Is voltage about 4 – 6 V at each terminal?

Go to Step 4. “WHT/ GRN” wire open,

“WHT/ GRN” wire shorted to ground circuit or power circuit or “BRN/ WHT” wire, “GRY” wire open or shorted to ground circuit or poor E23-1 or E23-6 connection. If wire and connection are OK, substitute a knowngood ECM (PCM) and recheck.

4 Check TP Sensor.

1) Check resistance between terminals of TP sensor. See Fig. 3. Between 1 and 4: 2.87 – 5.33 kΩ Between 1 and 3: 100 Ω – 20 kΩ, varying according to throttle valve opening.

“BRN/ WHT” wire open or poor E23-9 connection. If wire and connection are OK, substitute a knowngood ECM (PCM) and recheck.

Replace TP sensor.

Are measured values within specifications?

Fig. 1 for Step 2 Fig. 2 for Step 3 Fig. 3 for Step 4

“1”

Scan tool

“3”

“4”

Page 76

6-1-50 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC P0121 THROTTLE POSITION CIRCUIT RANGE/PERFORMANCE

PROBLEM

CIRCUIT DESCRIPTION

To MAP sensor

Throttle position sensor

To other sensors

DTC DETECTING CONDITION POSSIBLE CAUSE

D After engine warmed up. D While vehicle running at specified engine speed. D No change in intake manifold pressure (constant throttle opening)

D TP sensor malfunction D High resistance in the circuit D ECM (PCM) malfunction

D Difference between actual throttle opening (detected from TP sensor)

and opening calculated by ECM (PCM) (Obtained on the basis of engine speed and intake manifold pressure) in larger than specified value.

: 2 driving cycle detection logic, continuous monitoring

DTC CONFIRMATION PROCEDURE

WARNING: D When performing a road test, select a place where there is no traffic or possibility of a traffic accident

and be very careful during testing to avoid occurrence of an accident.

D Road test should be carried out with 2 persons, a driver and a tester, on a level road.

1) Turn ignition switch OFF. Clear DTC with ignition switch ON, check vehicle and environmental condition for:

– Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more) – Ambient temp.: –10_C, 14_F or higher – Intake air temp.: 70_C, 158_F or lower – Engine coolant temp.: 70 – 110 _C, 158 – 230_F

2) Warm up engine to normal operating temperature.

3) Increase vehicle speed to 30 – 40 mph, 50 – 60 km /h in 3rd gear or “D” range and hold throttle valve at that opening position for 1 min.

4) Stop vehicle.

5) Check DTC in “DTC” mode and pending DTC in “ON BOARD TEST” or “PENDING DTC” mode.

Page 77

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-51

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE

DIAG. FLOW TABLE”.

2 Check TP Sensor and Its Circuit.

1) Turn ignition switch OFF and connect SUZUKI scan tool to DLC.

2) Turn ignition switch ON and check TP sensor output voltage when throttle valve is at idle position and fully opened. See Fig. 1 and 2.

Dose voltage vary within specified value linearly as shown in figure?

3 Check TP Sensor.

1) Turn ignition switch OFF.

2) Disconnect TP sensor connector.

3) Check for proper connection to TP sensor at each terminal.

4) If OK, then measure resistance between terminals and check if each measured value is as specified below. See Fig. 3. Between 1 and 4: 2.87 – 5.33 kΩ Between 1 and 3: 100 Ω – 20 kΩ, varying according to

throttle valve opening.

Are measured values as specified?

If voltmeter was used, check terminal E23-6 for poor connection. If OK, substitute a known-good ECM (PCM) and recheck.

High resistance in

“WHT/ GRN”, “GRY” or “BRN/ WHT”

circuit. If wire and connection are OK, substitute a known-good ECM (PCM) and recheck.

Go to Step 3.

Replace TP sensor.

Fig. 1 for Step 2 Fig. 2 for Step 2 Fig. 3 for Step 3

“1”

Closed

Throttle Opening

Fully open

“3”“4”

Page 78

6-1-52 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC P0130 HEATED OXYGEN SENSOR (HO2S) CIRCUIT MALFUNCTION

(SENSOR-1)

CIRCUIT DESCRIPTION

To other sensors

Main fuse

Ignition switch

“IG COIL”

To HO2S-2 heater

Heater

DTC DETECTING CONDITION POSSIBLE CAUSE

D When running at idle speed after engine warmed up

and running at specified vehicle speed, HO2S-1 output voltage does not go below 0.3 V or over

D Heated oxygen sensor-1 malfunction D “RED” or “BRN/ WHT” circuit open (poor connection)

or short

0.6 V.

: 2 driving cycle detection logic, Monitoring once /1

driving.

DTC CONFIRMATION PROCEDURE

WARNING: D When performing a road test, select a place where there is no traffic or possibility of a traffic accident

and be very careful during testing to avoid occurrence of an accident.

D Road test should be carried out with 2 persons, a driver and a tester.

1) Turn ignition switch OFF. Clear DTC with ignition switch ON, check vehicle and environmental condition for:

– Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more) – Ambient temp.: –10_C, 14_F or higher – Intake air temp.: 70_C, 158_F or lower

2) Warm up engine to normal operating temperature.

3) Drive vehicle at 30 – 40 mph, 50 – 60 km /h for 2 min.

4) Stop vehicle and run engine at idle for 2 min.

5) Check DTC in “DTC” mode and pending DTC in “ON BOARD TEST” or “PENDING DTC” mode.

Page 79

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-53

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.

FLOW TABLE”.

2 Is there DTC(s) other than HO2S-1

(DTC P0130)?

3 1) Connect scan tool to DLC with ignition switch

OFF.

2) Warm up engine to normal operating temperature and keep it at 2000 r/ min. for 60 sec.

3) Repeat racing engine (Repeat depressing accelerator pedal 5 to 6 times continuously and take foot off from pedal to enrich and

Go to applicable DTC Diag. Flow Table.

Intermittent trouble. Check for intermittent referring to “Intermittent and Poor Connection” in Section 0A.

Go to Step 3.

Check “RED” and “BRN/ WHT” wires for open and short, and connections for poor connection. If wires and connections are OK, replace HO2S-1.

enlean A/ F mixture). See Fig. 1 and 2.

Does HO2S-1 output voltage deflect between

0.3 V and over 0.6 V repeatedly?

Fig. 1 for Step 3 Fig. 2 for Step 3

Normal

DTC P0133 HEATED OXYGEN SENSOR (HO2S) CIRCUIT SLOW RESPONSE

(SENSOR-1)

WIRING DIAGRAM/ CIRCUIT DESCRIPTION – Refer to DTC P0130 section.

DTC DETECTING CONDITION

D When running at specified idle speed after engine

warmed up and running at specified vehicle speed, response time (time to change from lean to rich or from rich to lean) of HO2S-1 output voltage is about 1 sec. at minimum or average time of 1 cycle is 5 sec. at minimum. See. Fig. 1

: 2 driving cycle detection logic, Monitoring once /1

driving.

D Heated oxygen sensor-1 malfunction

POSSIBLE CAUSE

Fig. 1

HO2S-1 Output voltage

1 cycle time

Response time

Page 80

6-1-54 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC CONFIRMATION PROCEDURE – Refer to DTC P0130 section.

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.

FLOW TABLE”.

2 Is there DTC(s) other than HO2S-1 (DTC P0133)? Go to applicable DTC

Diag. Flow Table.

Replace HO2S-1.

DTC P0134 HEATED OXYGEN SENSOR (HO2S) CIRCUIT NO ACTIVITY

DETECTED (SENSOR-1)

WIRING DIAGRAM/ CIRCUIT DESCRIPTION – Refer to DTC P0130 section.

DTC DETECTING CONDITION

D Engine warmed up. D While running under other than high load and high

engine speed conditions or at specified idle speed (engine is in closed loop condition), HO2S-1 output voltage is high or low continuously.

: 2 driving cycle detection logic, Continuous

monitoring.

DTC CONFIRMATION PROCEDURE – Refer to DTC P0130 section.

D “RED” or “BRN/ WHT” circuit open or short D Heated oxygen sensor malfunction D Fuel system malfunction D Exhaust gas leakage

POSSIBLE CAUSE

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.

FLOW TABLE”.

2 Is there DTC(s) other than Fuel system

(DTC P0171/ P0172) and HO2S-1 (DTC P0134)?

3 Check HO2S-1 and Its Circuit.

1) Connect scan tool to DLC with ignition switch OFF.

2) Warm up engine to normal operating temperature and keep it at 2000 r/ min. for 60 sec.

3) Repeat racing engine (Repeat depressing accelerator pedal 5 to 6 times continuously and take foot off from pedal to enrich and enlean A/ F mixture).

Does HO2S-1 output voltage deflect between

0.3 V and over 0.6 V repeatedly?

Go to applicable DTC Diag. Flow Table.

Go to DTC P0171 and P0172 Diag. Flow Table (Fuel System Check).

Go to Step 3.

Check “RED” and “BRN/ WHT” wires for open and short, and connections for poor connection. If wires and connections are OK, replace HO2S-1.

Page 81

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-55

DTC P0135 HEATED OXYGEN SENSOR (HO2S) HEATER CIRCUIT

MALFUNCTION (SENSOR-1)

CIRCUIT DESCRIPTION

To other sensors

Main fuse

Ignition switch

“IG COIL”

To HO2S-2 heater

DTC DETECTING CONDITION POSSIBLE CAUSE

DTC will set when A or B condition is met. A: D Low voltage at terminal E23-8 when engine is

running at high load.

B: D High voltage at terminal E23-8 when engine is

running under condition other than above.

: 2 driving cycle detection logic, Continuous

monitoring.

BRN / WHT

Heater

D HO2S-1 heater circuit open or shorted to ground D ECM (PCM) malfunction

DTC CONFIRMATION PROCEDURE

WARNING: D When performing a road test, select a place where there is no traffic or possibility of a traffic accident

and be very careful during testing to avoid occurrence of an accident.

D Road test should be carried out with 2 persons, a driver and a tester.

1) Turn ignition switch OFF.

2) Clear DTC with ignition switch ON, start engine and keep it at idle for 1 min.

3) Start vehicle and depress accelerator pedal fully for 5 sec. or longer.

4) Stop vehicle.

5) Check DTC in “DTC” mode and pending DTC in “ON BOARD TEST” or “PENDING DTC” mode.

Page 82

6-1-56 GENERAL INFORMATION AND ENGINE DIAGNOSIS

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.

FLOW TABLE”.

2 Check Heater for Operation.

1) Check voltage at terminal E23-8. See Fig. 1.

2) Warm up engine to normal operating temperature.

3) Stop engine.

4) Turn ignition switch ON and Check voltage at terminal E23-8. See Fig. 1. Voltage should be

Intermittent trouble Check for intermittent referring to “Intermittent and Poor Connection” in Section 0A.

Go to Step 3.

over 10 V.

5) Start engine, run it at idle and check voltage at the same terminal. Voltage should be below 1.9 V.

Are check results are specified?

3 Check Heater of Sensor-1.

1) Disconnect HO2S-1 coupler with ignition switch OFF.

2) Check for proper connection to HO2S-1 at “BRN/ WHT” and “YEL” wire terminals.

3) If OK, then check heater resistance. See Fig. 2.

Is it 11.7 – 14.3 Ω at 20_C, 68_F?

Fig. 1 for Step 2 Fig. 2 for Step 3

E23-8

“YEL” wire open or shorted to ground or poor connection at E23-8. If wire and connection are OK, substitute a known-good ECM (PCM) and recheck.

Replace HO2S-1.

Page 83

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-57

DTC P0136 HEATED OXYGEN SENSOR (HO2S) CIRCUIT MALFUNCTION

(SENSOR-2)

CIRCUIT DESCRIPTION

Main fuse

Ignition switch

“IG COIL”

To HO2S-1 heater

Heater

DTC DETECTING CONDITION POSSIBLE CAUSE

DTC will set when A or B condition is detected. A. Max. output voltage of HO2S-2 is lower than specified value or

Min. output voltage is higher than specified value while vehicle driving.

B. Engine is warmed up and HO2S-2 voltage is 4.5 V or more.

(circuit open)

: 2 driving cycle detection logic, monitoring once /1 driving.

D Exhaust gas leakage D “BLU” or “BRN/ WHT” circuit open or

short

D Heated oxygen sensor-2 malfunction D Fuel system malfunction

Page 84

6-1-58 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC CONFIRMATION PROCEDURE

WARNING: D When performing a road test, select a place where there is no traffic or possibility of a traffic accident

and be very careful during testing to avoid occurrence of an accident.

D Road test should be carried out with 2 persons, a driver and a tester, on a level road.

1) Turn ignition switch OFF. Clear DTC with ignition switch ON, check vehicle and environmental condition for:

– Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more) – Ambient temp.: –10_C, 14_F or higher – Intake air temp.: 70_C, 158_F or lower – No exhaust gas leakage and loose connection

2) Warm up engine to normal operating temperature.

3) Drive vehicle under usual driving condition for 5 min. and check HO2S-2 output voltage and “short term fuel trim” with “Data List” mode on scan tool, and write it down.

4) Stop vehicle (don’t turn ignition switch OFF).

5) Increase vehicle speed to higher than 20 mph, 32 km /h and then stop vehicle.

6) Repeat above steps 5) 4 times.

7) Increase vehicle speed to about 50 mph (80 km /h) in 3rd gear or 2 range.

8) Release accelerator pedal and with engine brake applied, keep vehicle coasting (fuel cut condition) for 10sec. or more.

9) Stop vehicle (don’t turn ignition switch OFF) and run engine at idle for 2 min. After this step 9), if “Oxygen Sensor Monitoring TEST COMPLETED” is displayed in “READINESS TESTS” mode and DTC is not displayed in “DTC” mode, confirmation test is completed. If “TEST NOT COMPLTD” is still being displayed, proceed to next step 10).

10) Drive vehicle under usual driving condition for 10 min. (or vehicle is at a stop and run engine at idle for 10 min. or longer)

11) Stop vehicle (don’t turn ignition switch OFF). Confirm test results according to “Test Result Confirmation Flow Table” in “DTC CONFIRMATION PROCEDURE” of DTC P0420.

50 mph

(80 km / h)

LUsual driving

Above 20 mph

(32 km / h)

1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11)and

LUsual driving: Driving at 30 – 40 mph, 50 – 60 km/h including short stop according to traffic signal. (under driving condition other than high-load,

high-engine speed, rapid accelerating and decelerating)

Page 85

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-59

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.

FLOW TABLE”.

2 Check exhaust system for leakage, loose

Go to Step 3. Repair or replace. connection and damage. Is it good condition?

3 Check HO2S-2 and Its Circuit.

Was HO2S-2 output voltage indicated on scan tool in step 3) of DTC confirmation test less

Go to Step 4. “BLU” or “BRN /WHT”

circuit open or HO2S-2 malfunction.

than 1.275 V?

4 Check Short Term Fuel Trim.

Did short term fuel trim very within –20 – + 20% range in step 3) of DTC confirmation test?

Check “BLU” and

“BRN/ WHT” wire for

open and short, and

Check fuel system. Go to DTC P0171/ P0172

Diag. Flow Table. connection for poor connection. If wire and connection are OK, replace HO2S-2.

Page 86

6-1-60 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC P0141 HEATED OXYGEN SENSOR (HO2S) HEATER CIRCUIT

MALFUNCTION (SENSOR-2)

CIRCUIT DESCRIPTION

Main fuse

Ignition switch

“IG COIL”

To HO2S-1 heater

Heater

DTC DETECTING CONDITION POSSIBLE CAUSE

DTC will set when A or B condition it met. A. Low voltage at terminal E21-19 for specified time after engine

start or while engine running at high load.

D HO2S-2 heater circuit open or shorted

to ground

D ECM (PCM) malfunction

B. High voltage at terminal E21-19 while engine running under

other than above condition.

: 2 driving cycle detection logic, continuous monitoring.

DTC CONFIRMATION PROCEDURE

1) Turn ignition switch OFF once and then ON.

2) Clear DTC, start engine and warm up engine to normal operating temperature.

3) Keep it at 2000 r /min for 2 min.

4) Check pending DTC in “ON BOARD TEST” or “PENDING DTC” mode and DTC in “DTC” mode.

Page 87

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-61

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.

FLOW TABLE”.

2 Check HO2S-2 Heater and Its Circuit.

1) Warm up engine to normal operating temperature.

2) Stop engine.

3) Turn ignition switch ON and check voltage at terminal E21-19 See Fig. 1. Voltage should be over 10 V.

Intermittent trouble. Check for intermittent referring to “Intermittent and Poor Connection” in Section 0A.

Go to Step 3.

4) Start engine, run it at idle and check voltage at the same terminal after 1 min. from engine start. Voltage should be below 1.9 V.

Are check result as specified?

3 Check Heater or Sensor-2.

1) Disconnect HO2S-2 coupler with ignition switch OFF.

2) Check for proper connection to HO2S-2 at “BLK/ WHT” and “BLU /RED” wire terminals.

3) If OK, then check heater resistance.

Is it 11.7 – 14.3 Ω at 20_C, 68_F?

“BLU/ RED” wire open or shorted to ground or poor connection at E21-19. If wire and connection are OK, substitute a knowngood ECM (PCM)

Replace HO2S-2.

and recheck.

Fig. 1 for Step 2

Page 88

6-1-62 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC P0171 FUEL SYSTEM TOO LEAN DTC P0172 FUEL SYSTEM TOO RICH

CIRCUIT DESCRIPTION

Sensed information

Signal to decrease amount of fuel injection

HO2S-1

Exhaust gas

Main fuse

ECM

(PCM)

Ignition switch

“FI”

“IG COIL”

Main relay

Fuel injector

A/F mixture

Injector resistor

INJECTOR

To other circuits

Fuel injector

To other sensors

Signal to increase amount of fuel injection

High voltage

Low voltage

Oxygen concentration decreases

Oxygen concentration increases

HEATED OXYGEN SENSOR-1

A / F mixture becomes richer

A / F mixture becomes leaner

ECM

(PCM)

DTC DETECTING CONDITION POSSIBLE CAUSE

D When following condition occurs while engine running under

closed loop condition. – Air/fuel ratio too lean

Total fuel trim (short and long terms added) is more than 30%

– Air/fuel ratio too rich

(Total fuel trim is less than –30%)

: 2 driving cycle detection logic, continuous monitoring.

Heated oxygen sensor-1

D Vacuum leaks (air drawn in). D Exhaust gas leakage. D Heated oxygen sensor-1 circuit

malfunction.

D Fuel pressure out of specification. D Fuel injector malfunction (clogged or

leakage).

D MAP sensor poor performance. D ECT sensor poor performance. D IAT sensor poor performance. D TP sensor poor performance. D EVAP control system malfunction. D PCV valve malfunction.

Page 89

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-63

DTC CONFIRMATION PROCEDURE

WARNING: D When performing a road test, select a place where there is no traffic or possibility of a traffic accident

and be very careful during testing to avoid occurrence of an accident.

D Road test should be carried out with 2 persons, a driver and a tester on a level road.

1) Turn ignition switch OFF.

2) Clear DTC with ignition switch ON.

3) Check vehicle and environmental condition for:

– Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more) – Ambient temp.: –10_C, 14_F or higher – Intake air temp.: 70_C, 158_F or lower

4) Start engine and drive vehicle under usual driving condition (described in DTC confirmation procedure of DTC P0136) for 5 min. or longer and until engine is warmed up to normal operating temperature.

5) Keep vehicle speed at 30 – 40 mph, 50 – 60 km /h in 5th gear or “D” range for 5 min. or more.

6) Stop vehicle (do not turn ignition switch OFF).

7) Check pending DTC in “ON BOARD TEST” or “PENDING DTC” mode and DTC in “DTC” mode.

Page 90

6-1-64 GENERAL INFORMATION AND ENGINE DIAGNOSIS

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE

DIAG. FLOW TABLE”.

2 Is there DTC(s) other than fuel system

(DTC P0171/ P0172)?

Go to applicable DTC Diag. Flow

Go to Step 3.

Table.

3 Check HO2S-1 Output Voltage.

1) Connect scan tool to DLC with ignition switch OFF.

2) Warm up engine to normal operating temperature and keep it at 2000 r/ min. for 60 sec.

3) Repeat racing engine (Repeat depressing accelerator pedal

Go to Step 4. Go to DTC

P0130 Diag. Flow Table (HO2S-1 circuit

check). 5 to 6 times continuously and take foot off from pedal to enrich and enlean A/ F mixture). See Fig. 1.

Does HO2S-1 output voltage deflect between below 0.3 V and over 0.6 V repeatedly?

4 Check Fuel Pressure (Refer to section 6E1 for details).

1) Release fuel pressure from fuel feed line.

2) Install fuel pressure gauge.

Go to Step 5. Go to Diag. Flow

Table B-3 Fuel

Pressure Check.

3) Check fuel pressure. See Fig. 2. With fuel pump operating and engine at stop : 160 – 210 kPa, 1.6 – 2.1 kg /cm

22.7 – 29.9 psi.

At specified idle speed : 90 – 140 kPa, 0.9 – 1.4 kg/ cm

12.8 – 20.0 psi.

Is measured value as specified?

5 Check Fuel Injector and Circuit.

1) Turn ignition switch OFF and disconnect fuel injector connector.

Go to Step 6. Check injector

circuit or replace fuel injector.

2) Check for proper connection to fuel injector at each terminals.

3) If OK, then check injector resistance. See Fig. 3.

Injector resistance: 0.5 – 1.5 Ω at 20_C (68_F)

4) Connect injector connector.

5) Check that fuel is injected out in conical shape from fuel injector when running engine.

6) Check injector for fuel leakage after engine stop.

Fuel leakage: Less than 1 drop/ min.

Is check result satisfactory?

6 Check EVAP Canister Purge Valve.

1) Disconnect purge hose (1) from EVAP canister.

2) Place finger against the end of disconnected hose.

3) Check that vacuum is not felt there when engine is cool and running at idle. See Fig. 4.

Is vacuum felt?

7 Check intake manifold absolute pressure sensor for

performance (See DTC P0105 Diag. Flow Table). Is it in good condition?

Check EVAP

Go to Step 7. control system (See Section 6E1).

Go to Step 8. Repair or

replace.

Page 91

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-65

STEP ACTION YES NO

8 Check engine coolant temp. sensor for performance

(See Section 6E1).

Go to Step 9. Replace engine

coolant temp. sensor.

Is it in good condition?

9 Check intake air temp. sensor for performance

(See Section 6E1).

Go to Step 10. Replace intake air

temp. sensor.

Is it in good condition?

10 Check throttle position sensor for performance (See

Step 4 of DTC P0121 Diag. Flow Table).

Go to Step 11. Replace throttle

position sensor.

Is it in good condition?

11 Check PCV valve for valve clogging (See Section

6E1). Is it good condition?

Substitute a knowngood ECM (PCM) and recheck.

Replace PCV valve.

Fig. 1 for Step 3 Fig. 2 for Step 4 Fig. 3 for Step 5

Fig. 4 for Step 6

Good

1. Throttle body

2. Fuel feed hose

No good

Page 92

6-1-66 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC P0300 RANDOM MISFIRE DETECTED (Misfire detected at 2 or more

cylinders) DTC P0301 CYLINDER 1 MISFIRE DETECTED DTC P0302 CYLINDER 2 MISFIRE DETECTED DTC P0303 CYLINDER 3 MISFIRE DETECTED

Main fuse

Ignition switch

“FI”

Crankshaft position sensor

Camshaft position sensor

Ignition coil

“I / G COIL”

Main relay

Injector resistor

Igniter

Fuel injector

Ground at engine

CIRCUIT DESCRIPTION

ECM (PCM) monitors crankshaft revolution speed and engine speed via the crankshaft position sensor and cylinder No. via the camshaft position sensor. Then it calculates the change in the crankshaft revolution speed and from how many times such change occurred in every 200 or 1000 engine revolutions, it detects occurrence of misfire. When ECM (PCM) detects a misfire (misfire rate per 200 revolutions) which can cause overheat and damage to the three way catalytic converter, it makes the malfunction indicator lamp (MIL) flash as long as misfire occurs at that rate. After that, however, when the misfire rate drops, MIL remains ON until it has been judged as normal 3 times under the same driving conditions. Also, when ECM (PCM) detects a misfire (misfire rate per 1000 revolutions) which will not cause damage to three way catalytic converter but can cause exhaust emission to be deteriorated, it makes MIL light according to the 2 driving cycle detection logic.

Page 93

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-67

DTC DETECTING CONDITION POSSIBLE CAUSE

D Engine under other than high revolution condition D Not on rough road D Engine speed changing rate D Manifold absolute

pressure changing rate

Below specified value

D Throttle opening changing rate D Misfire rate per 200 or 1000 engine revolutions (how

much and how often crankshaft revolution speed changes) is higher than specified value

D Engine overheating D Vacuum leaks (air inhaling) from air intake system D Ignition system malfunction (spark plug(s), high-

tension cord(s), ignition coil assembly)

D Fuel pressure out of specification D Fuel injector malfunction (clogged or leakage) D Engine compression out of specification D Valve lash (clearance) out of specification D Manifold absolute pressure sensor malfunction D Engine coolant temp. sensor malfunction D PCV valve malfunction D EVAP control system malfunction

DTC CONFIRMATION PROCEDURE

WARNING: D When performing a road test, select a place where there is no traffic or possibility of a traffic accident

and be very careful during testing to avoid occurrence of an accident.

D Road test should be carried out with 2 persons, a driver and a tester.

1) Turn ignition switch OFF.

2) Clear DTC with ignition switch ON.

3) Check vehicle and environmental condition for: – Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more) – Ambient temp.: –10_C, 14_F or higher – Intake air temp.: 70_C, 158_F or lower – Engine coolant temp.: –10 – 110_C, 14 – 230_F

4) Start engine and keep it at idle for 2 min. or more.

5) Check DTC in “DTC” mode and pending DTC in “ON BOARD TEST” or “PENDING DTC” mode.

6) If DTC is not detected at idle, consult usual driving based on information obtained in “Customer complaint analysis” and “Freeze frame data check”.

Page 94

6-1-68 GENERAL INFORMATION AND ENGINE DIAGNOSIS

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE

DIAG. FLOW TABLE“.

2 Is there DTC other than Fuel system (DTC P0171 /P0172)

and misfire (DTC P0300-P0303)?

Go to applicable DTC Diag.

Go to Step 3.

Flow Table.

3 Check Ignition System.

1) Remove spark plugs and check them for;

D Air gap: 1.0 – 1.1 mm (0.040 – 0.043 in.) See Fig. 1. D Carbon deposits

Go to Step 4. Check ignition

system parts (Refer to Section 6F).

D Insulator damage D Plug type

If abnormality is found, adjust, clean or replace.

2) Disconnect injector connector. See Fig. 2.

3) Connect spark plugs to high tension cords and then ground spark plugs.

4) Crank engine and check that each spark plug sparks.

Are above check results satisfactory?

4 Check Fuel Pressure (Refer to Section 6E1 for details).

1) Release fuel pressure from fuel feed line.

2) Install fuel pressure gauge. See Fig. 3.

Go to Step 5. Go to Diag. Flow

Table B-3 fuel pressure check.

3) Check fuel pressure. With fuel pump operating and engine at stop : 160 – 210 kPa, 1.6 – 2.1 kg/cm

22.7 – 29.9 psi.

At specified idle speed : 90 – 140 kPa, 0.9 – 1.4 kg/cm

12.8 – 20.0 psi.

Is measured value as specified?

5 Check Fuel Injector and Circuit.

1) Turn ignition switch OFF and disconnect fuel injector connector.

Go to Step 6. Check injector

circuit or replace fuel injector.

2) Check for proper connection to fuel injector at each terminal.

3) If OK, then check injector resistance. See Fig. 4. Injector resistance: 0.5 – 1.5 Ω at 20_C (68_F).

4) Connect injector connector.

5) Check that fuel is injected out in conical shape from fuel injector when running engine.

6) Check injector for fuel leakage after engine stop. Fuel leakage: Less than 1 drop/ min.

Is check result satisfactory?

Page 95

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-69

STEP ACTION YES NO

6 Check PCV valve for clogging (See Section 6E1).

Go to Step 7. Replace PCV valve.

Is it in good condition?

7 Check EVAP Canister Purge Valve for Closing.

1) Disconnect purge hose (1) from EVAP canister.

2) Place finger against the end of disconnected hose.

Check EVAP control system (See Section 6E1).

Go to Step 8.

3) Check that vacuum is not felt there, when engine is cool and running at idle. See Fig. 5.

Is vacuum felt?

8 Check intake manifold pressure sensor for performance

Go to Step 9. Repair or replace. (See Section 6E1). Is it in good condition?

9 Check engine coolant temp. sensor for performance

(See Section 6E1). Is it in good condition?

10 Check parts or system which can cause engine rough

idle or poor performance.

– Engine compression (See Section 6A). – Valve lash (See Section 6A). – Valve timing (Timing belt installation. See Section 6A).

Are they in good condition?

Go to Step 10. Replace engine

coolant temp. sensor.

Check wire harness

Repair or replace. and connection of ECM (PCM) ground, ignition system and fuel injector for intermittent open and short.

Fig. 1 for Step 3 Fig. 2 for Step 3 Fig. 3 for Step 4

1. Injector connector

Fig. 4 for Step 5 Fig. 5 for Step 7

1. Throttle body

2. Fuel feed hose

Good

No good

Page 96

6-1-70 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC P0335 CRANKSHAFT POSITION (CKP) SENSOR CIRCUIT MALFUNCTION

CIRCUIT DESCRIPTION

Crankshaft timing belt pulley

CKP sensor

DTC DETECTING CONDITION POSSIBLE CAUSE

D No CKP sensor signal during 1 revolution of

camshaft.

D CKP sensor circuit open or short. D Crankshaft timing belt pulley teeth damaged. D CKP sensor malfunction, foreign material being

attached or improper installation.

D ECM (PCM) malfunction.

Reference

Connect oscilloscope between terminals E23-3 (+) and E23-11 (–) of ECM (PCM) connector connected to ECM (PCM) and check CKP sensor signal.

Oscilloscope Waveforms

2V/Div.

Waveforms at specified idle speed

5ms/Div.

DTC CONFIRMATION PROCEDURE

1) Clear DTC, start engine and keep it at idle for 1 min.

2) Select “DTC” mode on scan tool and check DTC.

Page 97

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-71

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.

FLOW TABLE”.

2 Check CKP Sensor for Resistance.

Go to Step 3. Replace CKP sensor.

1) Disconnect CKP sensor connector with ignition switch OFF.

2) Then check for proper connection to CKP sensor at “PNK” and “BLU” wire terminals.

3) If OK, measure sensor resistance between terminals. See Fig. 1.

CKP sensor resistance: 360 – 460 Ω

at 20_C, (68_F)

4) Measure resistance between each terminal and ground.

Insulation resistance: 1 MΩ or more.

Were measured resistance valves in step 3) and 4) as specified?

3 Check visually CKP sensor and pulley for the

following. See Fig. 2.

D Damage D No foreign material attached. D Correct installation.

Are they in good condition?

“PNK” or “BLU” wire open or shorted to ground, or poor connection at E23-3 or E23-11. If wire and connection

Clean, repair or replace.

are OK, intermittent trouble or faulty ECM (PCM). Recheck for intermittent referring to “Intermittent and Poor Connection” in Section 0A.

Fig. 1 for Step 2 Fig. 2 for Step 3

Page 98

6-1-72 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC P0340 CAMSHAFT POSITION (CMP) SENSOR CIRCUIT MALFUNCTION

CIRCUIT DESCRIPTION

Sensor rotor in distributor

Camshaft position sensor

DTC DETECTING CONDITION POSSIBLE CAUSE

D No CMP sensor signal for 2 seconds at engine

cranking (CKP sensor signal is inputted).

D CMP sensor circuit open or short. D Signal rotor teeth damaged. D CMP sensor malfunction, foreign material being

attached or improper installation.

D ECM (PCM) malfunction.

Reference

Connect oscilloscope between terminals E23-2 and E23-10 of ECM (PCM) connector connected to ECM (PCM) and check CMP sensor signal.

Display of fuel injection signal using oscilloscope

2V/Div.

20V/Div.

1. CMP sensor signal

2. Fuel injector signal

3. Fuel injection time

Waveforms at specified idle speed

DTC CONFIRMATION PROCEDURE

1) Clear DTC.

2) Start engine and keep it at idle for 1 min.

3) Select “DTC” mode on scan tool and check DTC.

10ms/Div

Page 99

GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-73

INSPECTION

STEP ACTION YES NO

1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.

FLOW TABLE”.

2 Is DTC P1500 (Engine starter signal circuit

malfunction) detected?

3 Check CMP Sensor for Resistance.

Go to DTC P1500

Go to Step 3.

Diag. Flow Table.

Go to Step 4. Faulty CMP sensor.

1) Measure resistance of CMP sensor by referring to “CMP SENSOR (PICK UP COIL) RESISTANCE” in SECTION 6F.

Is resistance within specified value?

4 Check Wire Harness.

1) With ignition switch at OFF position, disconnect ECM (PCM) electrical connectors.

2) Measure resistance from terminal “E23-2” to “E23-10” of ECM (PCM) connector.

Go to Step 5. “WHT” or “BLK” wire

open or short. Poor connection of CMP sensor connector terminal.

Is resistance within 185 – 275 Ω at 20_C (68_F)?

5 Check Air Gap Between Rotor Tooth and Sensor. See

Fig. 1.

1) Remove Distributor cap.

2) Visually inspect CMP sensor signal rotor for damage.

3) Measure air gap by referring “SIGNAL ROTOR AIR GAP” in Section 6F.

Faulty CMP sensor signal rotor.

Poor connection of ECM (PCM) connector terminal. If OK, substitute a known-good ECM (PCM) and recheck CMP.

Was any damage found?

Fig. 1 for Step 5

“a”: Air gap

Page 100

6-1-74 GENERAL INFORMATION AND ENGINE DIAGNOSIS

DTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD

CIRCUIT DESCRIPTION

To other sensors

Heated oxygen sensor-1

Warm up three way catalytic converter

Three way catalytic converter

Heated oxygen sensor-2

ECM (PCM) monitors oxygen concentration in the exhaust gas which has passed the three way catalytic converter by HO2S-2. When the catalyst is functioning properly, the variation cycle of HO2S-2 output voltage (oxygen concentration) is slower than that of HO2S-1 output voltage because of the amount of oxygen in the exhaust gas which has been stored in the catalyst.

Reference

Oscilloscope Waveforms

0.5 V / Div

2 sec. / Div

Engine running at Closed loop condition

Fuel Cut

Idle after fuel cut

DTC DETECTING CONDITION POSSIBLE CAUSE

D While vehicle running at constant speed under other

than high load.

D Time from rich or lean switching command is output

till HO2S-2 output voltage crosses 0.45 V is less than specified value.

: 2 driving cycle detection logic, monitoring once /1

driving.

D Exhaust gas leak D Three way catalytic converter malfunction D Fuel system malfunction D HO2S-2 malfunction D HO2S-1 malfunction

Suzuki RB310 Service Manual 99500U83E10-01E

Specifications and Main Features

Frequently Asked Questions

User Manual

IMPORTANT

FOREWORD

TABLE OF CONTENTS TABLE OF CONTENTS SECTIONSECTION

SECTION 0B

SECTION 1B

SECTION 6-1