Infiniti Q45 2000 User Manual

Page 1

EDITION: OCTOBER 1999 REVISION: OCTOBER 1999 PUBLICATION NO. SM0E-1F33U1

QUICK REFERENCE INDEX

All rights reserved. No part of this Service Manual may be reproduced or stored in a retrieval system, or transmitted in any form, or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of Nissan Motor

Company Ltd., Tokyo, Japan.

Page 2

FOREWORD

This manual contains maintenance and repair procedures for the 2000 INFINITI Q45.

In order to assure your safety and the efficient functioning of the vehicle, this manual should be read thoroughly. It is especially important that the PRECAUTIONS in the GI section be completely understood before starting any repair task.

All information in this manual is based on the latest product information at the time of publication. The right is reserved to make changes in specifications and methods at any time without notice.

IMPORTANT SAFETY NOTICE

The proper performance of service is essential for both the safety of the technician and the efficient functioning of the vehicle. The service methods in this Service Manual are described in such a manner that the service may be performed safely and accurately. Service varies with the procedures used, the skills of the technician and the tools and parts available. Accordingly, anyone using service procedures, tools or parts which are not specifically recommended by INFINITI must first be completely satisfied that neither personal safety nor the vehicle’s safety will be jeopardized by the service method selected.

Page 3

PLEASE HELP MAKE THIS SERVICE MANUAL BETTER!

Your comments are important to INFINITI and will help us to improve our Service Manuals.

Use this form to report any issues or comments you may have regarding our Service Manuals.

Please print this form and type or write your comments below. Mail or fax to:

Nissan North America, Inc. Technical Service Information 39001 Sunrise Drive, P.O. Box 9200 Farmington Hills, MI USA 48331 FAX: (248) 488-3910

SERVICE MANUAL: Model: Year:

PUBLICATION NO. (Please photocopy back cover):

VEHICLE INFORMATION VIN: Production Date:

Please describe any issues or problems in detail: Page number(s)

Note: Please include a copy of each page, marked with your comments.

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If no, what page number(s)? Please describe the issue or problem in detail:

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Please comment:

What information should be included in INFINITI Service Manuals to better support you in servicing or repairing customer vehicles?

Note: Please include a copy of each page, marked with your comments.

DATE: YOUR NAME: POSITION:

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CITY: STATE/PROV./COUNTRY: ZIP/POSTAL CODE:

Page 4

INCH TO METRIC CONVERSION TABLE

(Rounded-off for automotive use)

inches mm inches mm

.100 2.54 .610 15.49 .110 2.79 .620 15.75 .120 3.05 .630 16.00 .130 3.30 .640 16.26 .140 3.56 .650 16.51 .150 3.81 .660 16.76 .160 4.06 .670 17.02 .170 4.32 .680 17.27 .180 4.57 .690 17.53 .190 4.83 .700 17.78 .200 5.08 .710 18.03 .210 5.33 .720 18.29 .220 5.59 .730 18.54 .230 5.84 .740 18.80 .240 6.10 .750 19.05 .250 6.35 .760 19.30 .260 6.60 .770 19.56 .270 6.86 .780 19.81 .280 7.11 .790 20.07 .290 7.37 .800 20.32 .300 7.62 .810 20.57 .310 7.87 .820 20.83 .320 8.13 .830 21.08 .330 8.38 .840 21.34 .340 8.64 .850 21.59 .350 8.89 .860 21.84 .360 9.14 .870 22.10 .370 9.40 .880 22.35 .380 9.65 .890 22.61 .390 9.91 .900 22.86 .400 10.16 .910 23.11 .410 10.41 .920 23.37 .420 10.67 .930 23.62 .430 10.92 .940 23.88 .440 11.18 .950 24.13 .450 11.43 .960 24.38 .460 11.68 .970 24.64 .470 11.94 .980 24.89 .480 12.19 .990 25.15 .490 12.45 1.000 25.40 .500 12.70 2.000 50.80 .510 12.95 3.000 76.20 .520 13.21 4.000 101.60 .530 13.46 5.000 127.00 .540 13.72 6.000 152.40 .550 13.97 7.000 177.80 .560 14.22 8.000 203.20 .570 14.48 9.000 228.60 .580 14.73 10.000 254.00 .590 14.99 20.000 508.00 .600 15.24

METRIC TO INCH CONVERSION TABLE

(Rounded-off for automotive use)

mm inches mm inches

1 .0394 51 2.008 2 .079 52 2.047 3 .118 53 2.087 4 .157 54 2.126 5 .197 55 2.165 6 .236 56 2.205 7 .276 57 2.244 8 .315 58 2.283

9 .354 59 2.323 10 .394 60 2.362 11 .433 61 2.402 12 .472 62 2.441 13 .512 63 2.480 14 .551 64 2.520 15 .591 65 2.559 16 .630 66 2.598 17 .669 67 2.638 18 .709 68 2.677 19 .748 69 2.717 20 .787 70 2.756 21 .827 71 2.795 22 .866 72 2.835 23 .906 73 2.874 24 .945 74 2.913 25 .984 75 2.953 26 1.024 76 2.992 27 1.063 77 3.031 28 1.102 78 3.071 29 1.142 79 3.110 30 1.181 80 3.150 31 1.220 81 3.189 32 1.260 82 3.228 33 1.299 83 3.268 34 1.339 84 3.307 35 1.378 85 3.346 36 1.417 86 3.386 37 1.457 87 3.425 38 1.496 88 3.465 39 1.535 89 3.504 40 1.575 90 3.543 41 1.614 91 3.583 42 1.654 92 3.622 43 1.693 93 3.661 44 1.732 94 3.701 45 1.772 95 3.740 46 1.811 96 3.780 47 1.850 97 3.819 48 1.890 98 3.858 49 1.929 99 3.898 50 1.969 100 3.937

Page 5

Attachment No.7

TEST VALUE AND TEST LIMIT (GST ONLY — NOT APPLICABLE TO CONSULT-II)

The following is the information specified in Mode 6 of SAE J1979. The test value is a parameter used to determine whether a system/circuit diagnostic test is “OK” or “NG” while

being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the maximum or minimum value and is compared with the test value being monitored. Items for which these data (test value and test limit) are displayed are the same as SRT code items. These data (test value and test limit) are specified by Test ID (TID) and Component ID (CID) and can be displayed on the GST screen.

SRT item Self-diagnostic test item DTC

(GST display)

TID CID

Test value

CATALYST

EVAP SYSTEM P1440 05H 03H Max. X -

HO2S

HO2S HTR

EGR SYSTEM

Three way catalyst function (Bank 1) P0420 01H 01H Max. X Three way catalyst function (Bank 2) P0430 03H 02H Max. X -

EVAP control system (Small leak)

EVAP control system purge flow monitoring P1447 06H 83H Min. X mV

Heated oxygen sensor 1(Bank 1)

Heated oxygen sensor 1(Bank 2)

Heated oxygen sensor 2(Bank 1)

Heated oxygen sensor 2(Bank 2)

Heated oxygen sensor 1 heater(Bank 1)

Heated oxygen sensor 2 heater(Bank 2)

Heated oxygen sensor 2 heater(Bank 1)

Heated oxygen sensor 2 heater(Bank 2)

EGR function

EGRC-BPT valve function

P0440 05H 03H Max. X -

P0133 09H 04H Max. X ms P0131 0AH 84H Min. X mV P0130 0BH 04H Max. X mV P0132 0CH 04H Max. X mV P0134 0DH 04H Max. X s P0153 11H 05H Max. X ms P0151 12H 85H Min. X mV P0150 13H 05H Max. X mV P0152 14H 05H Max. X mV P0154 15H 05H Max. X s P0139 19H 86H Min. X mV/500ms P0137 1AH 86H Min. X mV P0140 1BH 06H Max. X mV P0138 1CH 06H Max. X mV P0159 21H 87H Min. X mV/500ms P0157 22H 87H Min. X mV P0160 23H 07H Max. X mV P0158 24H 07H Max. X mV P0135 29H 08H Max. X mV P0135 2AH 88H Min. X mV P0155 2BH 09H Max. X mV P0155 2CH 89H Min. X mV P0141 2DH 0AH Max. X mV P0141 2EH 8AH Min. X mV P0161 2FH 0BH Max. X mV P0161 30H 8BH Min. X mV P0400 31H 8CH Min. X ℃ P0400 32H 8CH Min. X ℃ P0400 33H 8CH Min. X ℃ P0400 34H 8CH Min. X ℃ P1402 35H 0CH Max. X ℃ P0402 36H 0CH Max. X P0402 37H 8CH Min. X -

Te s t limit Application Unit

Applicable ･: Not applicable

Page 6

STEERING SYSTEM

EXIT

CONTENTS

PRECAUTIONS AND PREPARATION............................2

Supplemental Restraint System (SRS) ″AIR

BAG″ and ″SEAT BELT PRE-TENSIONER″...............2

Precautions for Steering System.................................2

Special Service Tools ..................................................3

Commercial Service Tools ...........................................4

NOISE, VIBRATION AND HARSHNESS (NVH)

TROUBLESHOOTING.....................................................5

NVH Troubleshooting Chart.........................................5

ON-VEHICLE SERVICE ..................................................6

Checking Steering Wheel Play....................................6

Checking Neutral Position on Steering Wheel ............6

Front Wheel Turning Angle ..........................................6

Checking Gear Housing Movement ............................7

Adjusting Rack Retainer ..............................................7

Checking and Adjusting Drive Belts (For power

steering) .......................................................................7

Checking Fluid Level ...................................................7

Checking Fluid Leakage ..............................................8

Bleeding Hydraulic System..........................................8

Checking Steering Wheel Turning Force (For

power steering) ............................................................9

Checking Hydraulic System.........................................9

STEERING WHEEL AND STEERING COLUMN.......... 11

Removal..................................................................... 11

SECTION

Installation..................................................................12

Disassembly and Assembly.......................................13

Inspection...................................................................14

POWER STEERING GEAR AND LINKAGE ................15

Removal and Installation ...........................................15

Disassembly...............................................................18

Inspection...................................................................18

Assembly ...................................................................20

Adjustment .................................................................25

POWER STEERING OIL PUMP....................................27

Pre-disassembly Inspection.......................................27

Disassembly...............................................................27

Inspection...................................................................28

Assembly ...................................................................28

TWIN ORIFICE POWER STEERING SYSTEM ............30

Hydraulic Circuit.........................................................30

Wiring Diagram ..........................................................31

TWIN ORIFICE POWER STEERING SYSTEM -

Trouble Diagnoses .......................................................33

Precautions ................................................................33

Diagnostic Procedure ................................................34

Control Unit Inspection Table ....................................37

SERVICE DATA AND SPECIFICATIONS (SDS) ..........38

General Specifications...............................................38

Inspection and Adjustment ........................................38

IDX

Page 7

PRECAUTIONS AND PREPARATION

Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER” used along with a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. The SRS system composition which is available to INFINITI Q45 is as follows: ! For a frontal collision

The Supplemental Restraint System consists of driver air bag module (located in the center of the steering wheel), front passenger air bag module (located on the instrument panel on passenger side), seat belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.

! For a side collision

The Supplemental Restraint System consists of front side air bag module (located in the outer side of front seat), satellite sensor, diagnosis sensor unit (one of components of air bags for a frontal collision), wiring harness, warning lamp (one of components of air bags for a frontal collision).

Information necessary to service the system safely is included in the RS section of this Service Manual.

WARNING:

! To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death

in the event of a collision which would result in air bag inflation, all maintenance should be performed by an authorized INFINITI dealer.

! Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-

sonal injury caused by intentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the RS section.

! Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. Spiral cable and wiring harnesses (except satellite sensor and side air bag module) covered with yellow insulation tape either just before the harness connectors or for the complete harness are related to the SRS.

EXIT

Precautions for Steering System

! Before disassembly, thoroughly clean the outside of the unit. ! Disassembly should be done in a clean work area. It is important to prevent the internal parts from

becoming contaminated by dirt or other foreign matter.

! Place disassembled parts in order, on a parts rack, for easier and proper assembly. ! Use nylon cloths or paper towels to clean the parts; common shop rags can leave lint that might

interfere with their operation.

! Before inspection or reassembly, carefully clean all parts with a general purpose, non-flammable

solvent.

! Before assembly, apply a coat of recommended Genuine Nissan PSF II or equivalent to hydraulic

parts. Vaseline may be applied to O-rings and seals. Do not use any grease.

! Replace all gaskets, seals and O-rings. Avoid damaging O-rings, seals and gaskets during instal-

lation. Perform functional tests whenever designated.

ST-2

Page 8

PRECAUTIONS AND PREPARATION

Special Service Tools

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number (Kent-Moore No.) Tool name

KV48103404 (—) Torque adapter

Description

Measuring pinion rotating torque

EXIT

ST27180001 (J25726-A) Steering wheel puller

ST29020001 (J24319-01) Pitman arm puller

KV48103500 (J26357 and J26357-10) Pressure gauge

KV48102500 (J33914) Pressure gauge adapter

NT236

NT544

NT694

NT547

Removing steering wheel

Removing ball joint

a: 34 mm (1.34 in) b: 6.5 mm (0.256 in) c: 61.5 mm (2.421 in) radius

Measuring oil pressure

ST3127S000 (See J25765-A)

1 GG91030000

(J25765-A) Torque wrench

2 HT62940000

(—) Socket adapter

3 HT62900000

(—) Socket adapter

KV48104400 (—) Rack seal ring reformer

NT542

NT541

NT550

ST-3

Measuring turning torque

Reforming teflon ring

a: 50 mm (1.97 in) dia. b: 36 mm (1.42 in) dia. c: 100 mm (3.94 in)

IDX

Page 9

PRECAUTIONS AND PREPARATION

Tool name Description

Rear oil seal drift

Commercial Service Tools

Installing rear oil seal

EXIT

Pinion oil seal drift

Oil pump attachment

NT063

NT179

a: 28 mm (1.10 in) dia.

Installing pinion oil seal

a: 35 mm (1.38 in) dia.

Disassembling and assembling oil pump

Unit: mm (in)

ST-4

Page 10

X: Applicable

Judder X X X X X X

Symptom STEERING

Vibration XXXXX X XX X

Shimmy X X X X X X X X

Noise XXXXXXXXX XXXXXXX

Shake X X X X XXXXX

SUSPECTED PARTS

Possible cause and

Reference page

Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

ST-5

IDX

Fluid level

Air in hydraulic system

Tie-rod ball joint swinging force

Tie-rod ball joint rotating torque

Tie-rod ball joint end play

Steering gear fluid leakage

Steering wheel play

Steering gear rack sliding force

Drive belt looseness

Improper steering wheel or damage

Improper installation or looseness of tilt lock lever

Mounting rubber deterioration

Steering column deformation

Improper installation or looseness of steering column

Steering linkage looseness

PROPELLER SHAFT

DIFFERENTIAL

AXLE AND SUSPENSION

TIRES

ROAD WHEEL

DRIVE SHAFT

BRAKES

ST-7

ST-8

ST-19

ST-8

ST-6

ST-9

Refer to MA section.

—

ST-11

ST-7

ST-11

ST-15

Refer to PD section.

Refer to FA and RA sections.

Refer to FA section.

Refer to RA section.

Refer to BR section.

NVH Troubleshooting Chart

EXIT

Page 11

ON-VEHICLE SERVICE

Checking Steering Wheel Play

! With wheels in a straight-ahead position, check steering wheel

play.

Steering wheel play:

35 mm (1.38 in) or less

! If it is not within specification, check the following for loose or

worn components.

Steering gear assembly Steering column Front suspension and axle

SST489B

Checking Neutral Position on Steering Wheel

Pre-checking

! Make sure that wheel alignment is correct.

Wheel alignment:

Refer to FA section, SDS.

! Verify that the steering gear is centered before removing the

steering wheel.

Checking

SST490BA

1. Check that the steering wheel is in the neutral position when driving straight ahead.

2. If it is not in the neutral position, remove the steering wheel and reinstall it correctly.

3. If the neutral position is between two teeth, loosen tie-rods lock nuts. Turn the tie-rods by the same amount in opposite directions on both left and right sides.

EXIT

SMA127

SST307BA

Front Wheel Turning Angle

1. Rotate steering wheel all the way right and left; measure turning angle.

Turning angle of full turns:

Refer to FA section, SDS.

2. If it is not within specification, check rack stroke.

Rack stroke “S”:

Refer to SDS (ST-38).

ST-6

Page 12

ON-VEHICLE SERVICE

Checking Gear Housing Movement

1. Check the movement of steering gear housing during stationary steering on a dry paved surface.

! Apply a force of 49 N (5 kg, 11 lb) to steering wheel to check

the gear housing movement. Turn off ignition key while checking.

Movement of gear housing:

±2 mm (±0.08 in) or less

2. If movement exceeds the limit, replace mount insulator after confirming proper installation of gear housing clamps.

SST308B

Adjusting Rack Retainer

! Perform this driving test on a flat road.

1. Check whether vehicle moves in a straight line when steering wheel is released.

2. Check whether steering wheel returns to neutral position when steering wheel is released from a slightly turned (approx. 20°) position.

! If any abnormality is found, correct it by resetting adjusting

screw.

EXIT

SST839C

SMA898C

Checking and Adjusting Drive Belts (For power steering)

Refer to MA section, “Checking Drive Belts”.

Checking Fluid Level

Check fluid level with dipstick on reservoir cap. Use “HOT” range at fluid temperatures from 50 to 80°C (122 to 176°F). Use “COLD” range at fluid temperatures from 0 to 30°C (32 to 86°F).

CAUTION:

! Do not overfill. ! Recommended fluid is Genuine Nissan PSF II or equiva-

lent.

ST-7

IDX

Page 13

ON-VEHICLE SERVICE

Checking Fluid Leakage

Check the lines for improper attachment and for leaks, cracks, damage, loose connections, chafing or deterioration.

1. Run engine at idle speed or 1,000 rpm.

Make sure temperature of fluid in oil tank rises to 60 to 80°C (140 to 176°F).

2. Turn steering wheel right-to-left several times.

3. Hold steering wheel at each “lock” position for five seconds and carefully check for fluid leakage.

SST836C

CAUTION:

Do not hold the steering wheel in a locked position for more than 15 seconds.

4. If fluid leakage at connectors is noticed, loosen flare nut and then retighten.

Do not overtighten connector as this can damage O-ring, washer and connector.

5. If fluid leakage from power steering pump is noticed, check power steering pump. Refer to ST-27.

6. Check rack boots for accumulation of power steering fluid.

EXIT

Bleeding Hydraulic System

1. Raise front end of vehicle until wheels clear ground.

2. Add fluid into oil tank to specified level. Meanwhile, quickly turn steering wheel fully to right and left and lightly touch steering stoppers. Repeat steering wheel operation until fluid level no longer decreases.

3. Start engine. Repeat step 2 above.

! Incomplete air bleeding will cause the following to occur. When

this happens, bleed air again.

a. Generation of air bubbles in reservoir tank b. Generation of clicking noise in oil pump c. Excessive buzzing in oil pump Fluid noise may occur in the valve or oil pump. This is common when the vehicle is stationary or while turning the steering wheel slowly. This does not affect performance or durability of the system.

ST-8

Page 14

ON-VEHICLE SERVICE

Checking Steering Wheel Turning Force (For power steering)

1. Park vehicle on a level, dry surface and set parking brake.

2. Start engine.

3. Bring power steering fluid up to adequate operating temperature. [Make sure temperature of fluid is approximately 60 to 80°C (140 to 176°F).]

Tires need to be inflated to normal pressure.

4. Check steering wheel turning force when steering wheel has

SST491B

SST090B

been turned 360° from the neutral position.

Steering wheel turning force:

39 N (4 kg, 9 lb) or less

5. If steering wheel turning force is out of specification, check rack sliding force.

a. Disconnect steering column lower joint and knuckle arms from

the gear.

b. Start and run engine at idle to make sure steering fluid has

reached normal operating temperature.

c. While pulling tie-rod slowly in the ±11.5 mm (±0.453 in) range

from the neutral position, make sure rack sliding force is within specification.

Rack sliding force:

16 inch tire

17 inch tire

d. Check sliding force outside above range.

Rack sliding force:

Not more than 294 N (30 kg, 66 lb)

6. If rack sliding force is not within specification, overhaul steering gear assembly.

235 - 294 N (24 - 30 kg, 53 - 66 lb)

255 - 294 N (26 - 30 kg, 57 - 66 lb)

EXIT

SST834-F

Checking Hydraulic System

Before starting, check belt tension, driving pulley and tire pressure.

1. Set Tool. Open shut-off valve. Then bleed air. Refer to “Bleeding Hydraulic System”, ST-8.

2. Run engine at idle speed or 1,000 rpm.

Make sure fluid temperature in reservoir tank rises to 60 to 80°C (140 to 176°F).

WARNING:

Warm up engine with shut-off valve fully opened. If engine is started with shut-off valve closed, fluid pressure in the power steering pump increases to maximum. This will raise fluid temperature abnormally.

3. Check pressure with steering wheel fully turned to left and right positions with engine idling at 1,000 rpm.

CAUTION:

Do not hold the steering wheel in a locked position for more than 15 seconds.

Power steering pump maximum operating pressure:

8,140 - 8,728 kPa (83 - 89 kg/cm psi)

! If pressure reaches maximum operating pressure, system is

OK.

, 1,180 - 1,266

ST-9

IDX

Page 15

ON-VEHICLE SERVICE

Checking Hydraulic System (Cont’d)

! If pressure increases above maximum operating pressure,

check power steering pump flow control valve. Refer to ST-27.

4. If power steering pressure is below the maximum operating pressure, slowly close shut-off valve and check pressure again.

CAUTION:

Do not close shut-off valve for more than 15 seconds.

! If pressure increases to maximum operating pressure, gear is

damaged. Refer to “Removal and Installation”, ST-15.

! If pressure remains below maximum operating pressure, pump

is damaged. Refer to “Disassembly”, ST-27.

5. After checking hydraulic system, remove Tool and add fluid as necessary. Then completely bleed air out of system. Refer to ST-8.

EXIT

ST-10

Page 16

STEERING WHEEL AND STEERING COLUMN

EXIT

SBF812E

SST675C

Removal

STEERING WHEEL

! Remove air bag module and spiral cable. Refer to RS section,

“Removal — Air Bag Module and Spiral Cable”.

ST-11

IDX

Page 17

STEERING WHEEL AND STEERING COLUMN

Removal (Cont’d)

! Align spiral cable correctly when installing steering wheel. a. Set the front wheels in the straight-ahead position. b. Make sure that the spiral cable is in the neutral position.

The neutral position is detected by turning left about 2.5 or 3.5 revolutions from the right end position. Align the two marks

(

CAUTION:

! The spiral cable may snap due to steering operation if the

cable is installed in an improper position. Also, with the steering linkage disconnected, the cable may snap by turning the steering wheel beyond the limited number of turns. (The spiral cable can be turned up to about 2.5 or 3.5 turns from the neutral position to both the right and left. The number of turns depends on the spiral cable type. Always confirm the number indicated on the caution label attached to the spiral cable before starting work.)

! Always work from the side of air bag module.

EXIT

SRS230

SST818C

SST687C

! Remove steering wheel with Tool.

Installation

STEERING WHEEL

Place combination switch assembly with the L-mark side facing down.

SST688C

Align the protruding portions of combination switch assembly with their corresponding holes in steering wheel, then install steering wheel. Refer to the figure at left.

ST-12

Page 18

STEERING WHEEL AND STEERING COLUMN

Installation (Cont’d)

STEERING COLUMN

! When installing steering column, fingertighten all lower bracket

and clamp retaining bolts; then tighten them securely. Do not apply undue stress to steering column.

! When attaching coupling joint, be sure tightening bolt faces

cutout portion.

CAUTION:

After installation, turn steering wheel to make sure it moves smoothly. Ensure the number of turns are the same from straight forward position to left and right locks.

SST800A

Be sure that the steering wheel is in a neutral position when driving straight ahead.

EXIT

Disassembly and Assembly

ST-13

SST676C

IDX

Page 19

STEERING WHEEL AND STEERING COLUMN

Disassembly and Assembly (Cont’d)

! When disassembling and assembling, unlock steering lock

with key.

a. Install O-rings

Ensure that rounded surface of snap ring faces toward bearing when snap ring is installed.

b. Install snap ring on upper shaft.

SST677C

! Steering lock a. Break self-shear type screws with a drill or other appropriate

tool.

b. Install new self-shear type screws and then cut off self-shear

type screw heads.

1 before inserting shaft into jacket tube.

EXIT

SST678C

SST837C

SST315B

! After installing steering column, check tilt mechanism opera-

tion.

Inspection

! When steering wheel does not turn smoothly, check the steer-

ing column as follows and replace damaged parts.

a. Check column bearings for damage or unevenness. Lubricate

with recommended multi-purpose grease or replace steering column as an assembly, if necessary.

b. Check steering column lower shaft for deformation or break-

age. Replace if necessary.

! When the vehicle is involved in a light collision, check steering

column length “L If it is not within specifications, replace steering column as an assembly.

Steering column length “L

633 - 668 mm (24.92 - 26.30 in)

Steering column lower shaft length “L

334.5 mm (13.17 in)

” and steering column lower shaft length “L2”.

”:

ST-14

Page 20

POWER STEERING GEAR AND LINKAGE

Removal and Installation

EXIT

SFA794BA

SST680C

CAUTION:

The rotation of the spiral cable (SRS “Air bag” component part) is limited. If the steering gear must be removed, set the front wheels in the straight-ahead direction. Do not rotate the steering column while the steering gear is removed.

! Detach tie-rod outer sockets from knuckle arms with Tool.

! Install pipe connector.

1 Low-pressure side

: 40 - 44 N⋅m (4.1 - 4.5 kg-m, 30 - 33 ft-lb)

2 High-pressure side

: 15 - 25 N⋅m (1.5 - 2.5 kg-m, 11 - 18 ft-lb)

IDX

SST966B

ST-15

Page 21

POWER STEERING GEAR AND LINKAGE

Removal and Installation (Cont’d)

! Observe specified tightening torque when tightening high-

pressure and low-pressure pipe connectors. Excessive tightening can damage threads or damaged connector O-ring.

! The O-ring in low-pressure pipe connector is larger than that

in high-pressure connector. Take care to install the proper O-ring.

! Initially, tighten nut on tie-rod outer socket and knuckle arm to

64 to 69 N⋅m (6.5 to 7.0 kg-m, 47 to 51 ft-lb). Then tighten further to align nut groove with first pin hole so that cotter pin can be installed.

CAUTION:

Tightening torque must not exceed 108 N⋅m (11.0 kg-m, 80 ftlb).

EXIT

SST824A

SST681C

SST587C

! Before removing lower joint from gear, set gear in neutral

(wheels in straight-ahead position). After removing lower joint, put matching marks on pinion shaft and pinion housing to record neutral position.

! To install, set left and right dust boots to equal deflection, and

attach lower joint by aligning matchmarks of pinion shaft and pinion housing.

! Tighten gear housing mounting bracket bolts in the order

shown.

ST-16

Page 22

POWER STEERING GEAR AND LINKAGE

EXIT

ST-17

IDX

SST682CB

Page 23

POWER STEERING GEAR AND LINKAGE

Disassembly

1. Prior to disassembling, measure pinion rotating torque. Record the pinion rotating torque as a reference. Refer to step 12 of “Adjustment” for reference torque data.

! Before measuring, disconnect cylinder tube and drain

fluid.

! Use soft jaws when holding steering gear housing. Handle

gear housing carefully, as it is made of aluminum. Do not grip cylinder in a vise.

2. Remove pinion gear.

SST683C

! Be careful not to damage pinion gear when removing pin-

ion seal ring.

3. Remove tie-rod outer sockets and boots.

4. Loosen tie-rod inner socket by prying up staked portion, and remove socket.

5. Remove retainer.

6. Remove pinion assembly.

7. Use a 2 to 2.5 mm (0.079 to 0.098 in) diameter drill to completely remove staked portion of gear housing end.

EXIT

SST051C

SST052C

SST472A

8. Remove gear housing end cover assembly with Tool.

9. Draw out rack assembly.

10. Remove rack seal ring.

! Using a heat gun, heat rack seal to approximately 40°C

(104°F).

! Remove rack seal ring. ! Replace rack seal ring and O-ring with new ones.

Be careful not to damage rack.

11. Remove center bushing and rack oil seal using tape wrapped socket and extension bar.

Do not scratch inner surfaces of pinion housing.

Inspection

Thoroughly clean all parts in cleaning solvent or Genuine Nissan PSF II or equivalent. Blow dry with compressed air, if available.

BOOT

! Check condition of boot. If cracked excessively, replace it. ! Check boots for accumulation of power steering fluid.

RACK

Thoroughly examine rack gear. If damaged, cracked or worn, replace it.

ST-18

Page 24

POWER STEERING GEAR AND LINKAGE

Inspection (Cont’d)

PINION ASSEMBLY

! Thoroughly examine pinion gear. If pinion gear is damaged,

cracked or worn, replace it.

! Check that all bearings roll freely. Ensure that balls, rollers and

races are not cracked, pitted or worn. Replace if necessary.

TIE-ROD OUTER AND INNER SOCKET

! Check ball joint for swinging force.

Tie-rod outer ball joint:

4.9 - 46.1 N (0.5 - 4.7 kg, 1.1 - 10.4 lb)

Tie-rod inner ball joint:

7.8 - 65.7 N (0.8 - 6.7 kg, 1.8 - 14.8 lb)

EXIT

SST333B

SST882B

SST334B

! Check ball joint for rotating torque.

Tie-rod outer ball joint:

0.29 - 2.94 N⋅m (3.0 - 30.0 kg-cm, 2.6 - 26.0 in-lb)

Tie-rod inner ball joint:

1.0 - 7.8 N⋅m (10 - 80 kg-cm, 8.7 - 69.4 in-lb)

! Check ball joint for axial end play.

Tie-rod outer ball joint:

0 mm (0 in)

Tie-rod inner ball joint:

0 mm (0 in)

! Check condition of dust cover. If cracked excessively, replace

it.

CYLINDER TUBES

Check cylinder tubes for scratches or other damage. Replace if necessary.

IDX

ST-19

Page 25

POWER STEERING GEAR AND LINKAGE

Assembly

1. Using a heat gun, heat new teflon rack seal ring to approximately 40°C (104°F). Then place it onto rack.

SST083B

! Using Tool, compress rack seal ring securely on rack.

Always insert the tool from the rack gear side.

EXIT

SST885B

SST201A

SST830A

2. Insert rack oil seal.

! Place plastic film into rack oil seal to prevent damage by

rack teeth.

! Always remove plastic film after rack oil seal is positioned

properly.

! Make sure lips of rack oil seal face each other.

3. Install center bushing and rack oil seal with rack assembly.

SST321B

4. Insert rack oil seal and end cover assembly to rack then tighten end cover assembly.

ST-20

Page 26

POWER STEERING GEAR AND LINKAGE

Assembly (Cont’d)

5. Fasten cylinder end cover assembly to gear housing by staking.

EXIT

SST073B

SST307BA

SST322B

6. Set rack gear in neutral position.

Rack stroke “S”:

Refer to SDS (ST-38).

7. Coat seal lip of new pinion oil seal with multi-purpose grease. Install it into pinion housing of gear with a suitable tool.

! Make sure lip of oil seal faces up when installed.

SST074B

SST323B

8. Install pinion bearing adjusting shim(s).

! Whenever pinion assembly, gear housing and rear housing are

disassembled, replace shim(s) with new ones. Always use the same number of shim(s) when replacing.

9. Install pinion seal ring on pinion gear assembly.

! Using a heat gun, heat pinion seal ring to approximately 40°C

(104°F) before installing it onto pinion gear assembly.

! Make sure pinion seal ring is properly settled in valve groove.

ST-21

IDX

Page 27

POWER STEERING GEAR AND LINKAGE

Assembly (Cont’d)

10. Apply a coat of multi-purpose grease to needle bearing roller and oil seal lip.

SST075B

11. Install pinion assembly to pinion housing.

Be careful not to damage pinion oil seal.

EXIT

SST324B

SST325B

SST685C

12. Apply a coat of multi-purpose grease to rear oil seal lip before installing rear housing.

13. Ensure that the rack is centered. Install rear cover cap so that protrusion of rear housing cover is positioned as shown in figure.

Be careful not to damage worm ring and oil seal.

SST684C

14. Install solenoid valve.

ST-22

Page 28

POWER STEERING GEAR AND LINKAGE

Assembly (Cont’d)

15. Install diaphragm spring at retainer.

! Always install retainer, spring washer and diaphragm spring in

that order.

! Make sure convex end (painted white) of diaphragm spring

faces outward when installing.

16. Install retainer spring and adjusting screw temporarily.

EXIT

SST087B

SST022C

SST328B

CAUTION:

Ensure steering gear spacer is installed with rubber side facing rack.

! Attach lock plate ! Insert steering gear spacer ! Apply locking sealant to inner socket threads

Screw inner socket into rack

! Stake lock plate at two places.

17. Install steering gear spacer

2 to side rod inner socket"1 .

5 to rack"4 .

4 and tighten to specified torque.

5 to lock plate"2 .

3 .

SST093B

SST307BA

18. Tighten outer socket lock nut.

Tie-rod length “L”:

Refer to SDS (ST-38).

19. Measure rack stroke.

Rack stroke “S”:

Refer to SDS (ST-38).

ST-23

IDX

Page 29

POWER STEERING GEAR AND LINKAGE

Assembly (Cont’d)

20. Before installing boot, coat the contact surfaces between boot and tie-rod with grease.

SST329B

21. Install boot clamps.

! To install, wrap boot clamp around boot groove twice. To

tighten clamp, place a screwdriver through both rings. Twist rings 4 to 4-1/2 turns while pulling with a force of approx. 98 N (10 kg, 22 lb).

EXIT

SST097B

SST741C

SST440A

! Install boot clamp so that it is to the rear of the vehicle when

gear housing is attached to the body. (This will prevent interference with other parts.)

! Twist boot clamp in the direction shown in figure at left.

SST126B

! After twisting boot clamp, bend twisted and diagonally so it

does not contact boot.

ST-24

Page 30

POWER STEERING GEAR AND LINKAGE

Adjustment

Adjust pinion rotating torque as follows:

1. Set gears to Neutral without fluid in the gear.

2. Coat the adjusting screw with locking sealant and screw it in.

3. Lightly tighten lock nut.

4. Tighten adjusting screw to a torque of 4.9 to 5.9 N⋅m (50 to 60 kg-cm, 43 to 52 in-lb).

5. Loosen adjusting screw, then retighten it to 0.05 to 0.20 N⋅m (0.5 to 2 kg-cm, 0.43 to 1.74 in-lb).

6. Move rack over its entire stroke several times.

SST742C

7. Measure pinion rotating torque within the range of 180° from neutral position. Stop the gear at the point of maximum torque.

8. Loosen adjusting screw, then retighten it to 4.9 N⋅m (50 kg-cm, 43 in-lb).

9. Loosen adjusting screw by 50° to 110°.

EXIT

SST683C

SST713C

SST090B

10. Prevent adjusting screw from turning, and tighten lock nut to specified torque.

11. Check steering gear for rack sliding frictional force.

Around neutral point of rack stroke ±5.5 mm (±0.217 in):

122.6 - 166.7 N (12.5 - 17 kg, 27.6 - 37.5 lb)

Except for neutral point:

122.6 - 186.3 N (12.5 - 19 kg, 27.6 - 41.9 lb)

! If sliding frictional force is out of specification, repeat the

adjustment procedure, starting from No. 4.

! After the readjustment, if sliding force is still out of

specification, steering gear is damaged.

ST-25

IDX

Page 31

POWER STEERING GEAR AND LINKAGE

Adjustment (Cont’d)

12. Measure pinion rotating torque within the range of ±100° from the neutral point.

Average rotating torque [(Max. measured value + Min. measured value) x 0.5]:

0.8 - 1.3 N⋅m (8 - 13 kg-cm, 6.9 - 11.3 in-lb)

Maximum torque increment:

Less than 0.4 N⋅m (4 kg-cm, 3.5 in-lb)

Except for above mentioned measuring range:

Maximum rotating torque

1.9 N⋅m (19 kg-cm, 16 in-lb)

SST683C

! If pinion rotating torque is not within specification, readjust it. ! After the readjustment, if pinion rotating torque is still out of

specification, steering gear is damaged.

Maximum torque increment

Less than 0.6 N⋅m (6 kg-cm, 5.2 in-lb)

EXIT

SST090B

13. Check rack sliding force on vehicle as follows:

a. Install steering gear onto vehicle, but do not connect tie-rod to

knuckle arm.

b. Connect all piping and fill with steering fluid. c. Start engine and bleed air completely. d. Disconnect steering column lower joint from the gear. e. Keep engine at idle and make sure steering fluid has reached

normal operating temperature.

f. Pull tie-rod slowly to move it from neutral position to ±11.5 mm

(±0.453 in) at speed of 3.5 mm (0.138 in)/s. Check that rack sliding force is within specification.

Rack sliding force:

16 inch tire

235 - 294 N (24 - 30 kg, 53 - 66 lb)

17 inch tire

255 - 294 N (26 - 30 kg, 57 - 66 lb)

g. Check sliding force outside above range.

Rack sliding force:

Not more than 294 N (30 kg, 66 lb)

! If rack sliding force is not within specification, readjust by

repeating adjustment procedure from the beginning.

! If rack sliding force is still out of specification after

readjustment, gear assembly needs to be replaced.

ST-26

Page 32

POWER STEERING OIL PUMP

EXIT

SST128B

SST686CB

Pre-disassembly Inspection

Disassemble the power steering oil pump only if the following items are found.

! Oil leak from any point shown in the figure. ! Deformed or damaged pulley. ! Poor performance

Disassembly

CAUTION:

! Parts which can be disassembled are strictly limited.

Never disassemble parts other than those specified.

! Disassemble in as clean a place as possible. ! Clean your hands before disassembly. ! Do not use rags; use nylon cloths or paper towels. ! Follow the procedures and cautions in the Service

Manual.

! When disassembling and reassembling, do not let foreign

matter enter or contact the parts.

IDX

ST-27

Page 33

POWER STEERING OIL PUMP

Disassembly (Cont’d)

! Remove snap ring, then draw drive shaft out.

Be careful not to drop drive shaft.

SST010B

! Remove oil seal.

Be careful not to damage front housing.

EXIT

SST034A

SST036A

! Remove connector and flow control valve with spring.

Be careful not to drop flow control valve.

Inspection

! If pulley is cracked or deformed, replace it. ! If an oil leak is found around pulley shaft oil seal, replace the

seal.

! If serration on pulley or pulley shaft is deformed or worn,

replace it.

SST038A

Assembly

Assemble oil pump, noting the following instructions.

! Make sure O-rings and oil seal are properly installed. ! Always install new O-rings and oil seal. ! Be careful of oil seal direction. ! Cam ring, rotor and vanes must be replaced as a set if neces-

sary.

! Coat each part with Genuine Nissan PSF II or equivalent when

assembling.

ST-28

Page 34

POWER STEERING OIL PUMP

Assembly (Cont’d)

! Pay attention to rotor direction.

EXIT

SST289A

SST843A

! When assembling vanes to rotor, rounded surfaces of vanes

must face cam ring side.

! Insert pin

plate. Then install cam ring

Cam ring:

2 into pin groove"1 of front housing and front side

3 as shown at left.

is less than D2.

SST497A

IDX

ST-29

Page 35

TWIN ORIFICE POWER STEERING SYSTEM

Hydraulic Circuit

EXIT

SST838C

Note: On models equipped with the active damper suspension system, the solenoid valve is controlled

by the active damper suspension control unit, as shown in the above drawing. For “Wiring Diagrams” and “Trouble Diagnoses” of these models, refer to FA section, “Active Damper Suspension”.

ST-30

Page 36

TWIN ORIFICE POWER STEERING SYSTEM

Wiring Diagram

EXIT

ST-31

IDX

TST002M

Page 37

TWIN ORIFICE POWER STEERING SYSTEM

Wiring Diagram (Cont’d)

EXIT

ST-32

TST003M

Page 38

TWIN ORIFICE POWER STEERING SYSTEM — Trouble Diagnoses

Precautions

BEFORE DIAGNOSING THE POWER STEERING SYSTEM, ENSURE THAT:

EXIT

Vehicle stopped

a. Power steering components (gears, oil pump, pipes, etc.)

are free from leakage, and that oil level is correct.

b. Tires are inflated to specified pressure and are of speci-

fied size, and that steering wheel is a genuine Nissan part.

c. Suspension utilizes the original design, and is free of

modifications which increase vehicle weight.

d. Wheel alignment is adjusted properly.

Vehicle in operation

a. Understand the trouble symptoms. b. Engine is operating properly.

PRELIMINARY KNOWLEDGE HELPFUL IN CONDUCTING DIAGNOSES

The power steering system is a twin orifice type, which uses a vehicle-speed sensing, electronic control design. Solenoid valve sensitivity is controlled in response to vehicle speed to achieve optimum steering effort.

SST696CA

SST697CB

FAIL-SAFE FUNCTION

The fail-safe function operates to regulate solenoid valve operation in response to engine speed, thereby maintaining the required steering force.

Fail-safe input conditions

Fail-safe input conditions Release conditions

No vehicle speed signal is entered for at least 10 seconds while driving at an engine speed of greater than 1,500 rpm.

A vehicle speed signal of greater than 30 km/h (19 MPH) abruptly drops below 2 km/h (1 MPH).

NOTE: When the engine is revved up to 1,500 rpm or more for at least 10 seconds with the vehicle at standstill, the fail-safe function operates; however, this is not a matter of concern. The fail-safe function can be released by driving the vehicle of a speed of greater than 1.4 km/h (0.9 MPH) or by turning the ignition key from “OFF” to “ON”.

! A vehicle speed signal of greater

than 1.4 km/h (0.9 MPH) is entered.

! Ignition key is turned from “OFF” to

“ON”.

IDX

ST-33

Page 39

TWIN ORIFICE POWER STEERING SYSTEM — Trouble Diagnoses

Diagnostic Procedure

SYMPTOM:

! Heavy steering operation during stationary turns ! Light steering operation during high-speed driving

Raise rear wheels off ground and start engine.

EXIT

SST872C

SST567CB

CHECK SOLENOID VALVE VOLTAGE.

Measure voltage between solenoid valve terminal ground while driving vehicle from 0 to 100 km/h (0 to 62 MPH).

CHECK SOLENOID VALVE VOLTAGE.

Measure voltage between solenoid valve terminal ground with engine at idle speed, approx. 1,600 rpm, and approx. 3,100 rpm respectively.

CHECK VEHICLE SPEED SENSOR INPUT SIGNAL.

Check speedometer for proper operation.

YES ... OK NO ... NG

Check if vehicle speed signal is present at power steering control unit. While driving at very slow speeds, measure voltage between control unit harness terminal

Malfunctioning power steering control unit

7 of data link connector and

Voltage:

0 km/h (0 MPH):

4.4 - 6.6V ... OK

100 km/h (62 MPH):

2.5V ... OK

Constant voltage ... NG

7 of data link connector and

Voltage:

Idling:

4.4 - 6.6V ... OK

1,600 rpm (approx.):

3.0V ... OK

3,100 rpm (approx.):

2.0V ... OK

No voltage variations ... NG

3 and ground.

0V (Min.) and 5V (Max.) are alternately repeated ... OK No voltage is present ... NG

Malfunctioning vehicle

speed sensor or speedometer

Improper connection

between speedometer and power steering control unit

ST-34

Page 40

TWIN ORIFICE POWER STEERING SYSTEM — Trouble Diagnoses

Diagnostic Procedure (Cont’d)

Improper connection

between power steering control unit and solenoid valve

SST702C

CHECK SOLENOID VALVE.

Disconnect power steering control unit connector and solenoid valve connector. Check power steering control unit connector terminal tor terminal

Continuity should exist.

7 and solenoid valve connec-

1 .

EXIT

SST694C

Check solenoid valve connector terminal

2 and ground.

Continuity should exist.

Measure solenoid valve resistance. Disconnect solenoid valve connector, and measure resistance between connector terminals (on solenoid valve side).

Resistance:

4-6Ω [at 25°C (77°F)] ... OK 0Ω or infinite ... NG

Disconnect solenoid valve connector. Apply voltage between connector terminals (on solenoid valve side) and listen for clicks (which indicate operation).

Clicks ... OK No clicks ... NG

Check steering is operating properly.

INSPECTION END

Improper connection

between solenoid valve and body ground

Malfunctioning solenoid

valve

! Malfunctioning steering

gear assembly

! Malfunctioning oil pump

SST695C

IDX

ST-35

Page 41

TWIN ORIFICE POWER STEERING SYSTEM — Trouble Diagnoses

Diagnostic Procedure (Cont’d)

Malfunctioning ignition

power circuit

Improper connection

between power steering control unit and body ground

SST566CB

CHECK POWER STEERING CONTROL UNIT POWER SUPPLY.

Check if power voltage is present at power steering control unit.

YES (12V) ... OK NG (0V) ... NG

CHECK POWER STEERING CONTROL UNIT GROUND CIRCUIT.

Check continuity between power steering control unit connector terminal

2 and

ground.

Continuity should exist.

EXIT

SST595CA

SST565CB

CHECK ENGINE REVOLUTION SENSOR INPUT SIGNAL.

Check engine revolution signal sent to power steering control unit.

Voltage:

Idling:

5.2V ... OK

2,000 rpm (approx.):

5.2V ... OK

No voltage is present ... NG

Return to item and re-check.

ECM-to-power steering con-

trol unit harness or ECM itself is faulty.

ST-36

Page 42

TWIN ORIFICE POWER STEERING SYSTEM — Trouble Diagnoses

Control Unit Inspection Table

The standard values (voltage), measured with an analog tester in contact with the control unit terminal, are shown below:

EXIT

Terminal No. Application Standard value

1 Power Approx. 12V

2 Ground 0V

0V (min.) and 5V (max.) are

3 Vehicle speed sensor input

5 Engine revolution signal input

Power steering solenoid valve output

alternately repeated when vehicle is driven at very slow speeds.

Engine operating at idle or 2,000 rpm (approx.): 5.2V

0 km/h (0 MPH): 4.4 - 6.6V 100 km/h (62 MPH): 2.5V Fail-safe

0 - 1,500 rpm: 4.4 - 6.6V 1,500 - 3,000 rpm: 3.0V 3,000 rpm or more: 2.0V

SST995B

IDX

ST-37

Page 43

SERVICE DATA AND SPECIFICATIONS (SDS)

Steering model Power steering

Steering gear type PR26AE

Steering overall gear ratio 18.5

Turn of steering wheel (Lock to lock)

Steering column type

STEERING WHEEL

Collapsible with automatic

3.26

drive positioner

General Specifications

Inspection and Adjustment

STEERING GEAR AND LINKAGE

EXIT

Steering wheel axial play

mm (in)

Steering wheel play

mm (in)

STEERING COLUMN

Steering column length “L1”

Steering column lower shaft length “L

mm (in)

”

mm (in)

0 (0)

0 - 35 (0 - 1.38)

633 - 668

(24.92 - 26.30)

334.5 (13.17)

SST315B

Item

Tie-rod outer ball joint

Swinging force (at cotter pin hole) N (kg, lb)

Rotating torque

Axial end play mm (in) 0 (0)

Tie-rod inner ball joint

Swinging force* N (kg, lb)

Rotating torque

Axial end play mm (in) 0 (0)

Tie-rod standard length “L”

*: Measuring point [!: 120 mm (4.72 in)]

Steering gear type

N⋅m (kg-cm, in-lb)

mm (in)

(0.5 - 4.7, 1.1 - 10.4)

(3.0 - 30.0, 2.6 - 26.0)

(0.8 - 6.7, 1.8 - 14.8)

(10 - 80, 8.7 - 69.4)

182.7 (7.19) or less

PR26AE

4.9 - 46.1

0.29 - 2.94

7.8 - 65.7

1.0 - 7.8

ST-38

SST488C

Rack stroke “S” mm (in) 67 (2.64)

SST307BA

Page 44

SERVICE DATA AND SPECIFICATIONS (SDS)

Inspection and Adjustment (Cont’d)

POWER STEERING

Tire size 16 inch 17 inch

Rack sliding force N (kg, lb)

Under normal operating oil pressure

Range within ±11.5 mm (±0.453 in) from the neutral position

Except above range Not more than 294 (30, 66)

Retainer adjustment

Adjusting screw

Initial tightening torque

Retightening torque after loosening

Tightening torque after gear has settled

Returning angle degree 50° - 110°

Pinion gear preload without gear oil

Within 100° from the neutral position

Average rotating torque

Maximum torque increment 0.4 (4, 3.5)

Except above range

Maximum rotating torque 1.9 (19, 16)

Maximum torque increment 0.6 (6, 5.2)

Steering wheel turning force (Measured at one full turn from the neutral position)

Fluid capacity (Approximate)

Oil pump maximum pressure

N⋅m (kg-cm, in-lb)

N (kg, lb)

! (US qt, Imp qt)

kPa (kg/cm

, psi)

235 - 294 (24

- 30, 53 - 66)

4.9 - 5.9 (50 - 60, 43 - 52)

0.20 (2.0, 1.74)

(8 - 13, 6.9 - 11.3)

39 (4, 9) or less

1.3 (1-3/8, 1-1/8)

(83 - 89, 1,180 - 1,266)

255 - 294 (26

- 30, 57 - 66)

4.9 (50, 43)

0.8 - 1.3

8,140 - 8,728

EXIT

ST-39

IDX

Page 45

NOTES

EXIT

Page 46

RESTRAINT SYSTEM

EXIT

CONTENTS

PRECAUTION..................................................................2

Supplemental Restraint System (SRS) ″AIR

BAG″ and ″SEAT BELT PRE-TENSIONER″...............2

SEAT BELTS ...................................................................3

Front Seat Belt.............................................................4

Rear Seat Belt .............................................................5

Seat Belt Inspection.....................................................7

Tether Anchor Plate ...................................................10

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)..........11

Precautions for SRS ″AIR BAG″ and ″SEAT

BELT PRE-TENSIONER″ Service ............................. 11

Special Service Tools ................................................ 11

Description .................................................................12

Seat Belt Pre-tensioner with Load Limiter.................13

Built-in Type Side Air Bag..........................................13

SRS Component Parts Location ...............................14

Maintenance Items ....................................................14

Removal and Installation - Diagnosis Sensor Unit, Seat Belt Pre-tensioner and Satellite

Sensor........................................................................16

Removal - Driver Air Bag Module and Spiral

Cable..........................................................................18

SECTION

Removal - Front Passenger Air Bag Module ............19

Removal - Side Air Bag Module (Built-in type) ......... 20

Installation - Driver Air Bag Module and Spiral

Cable..........................................................................22

Installation - Front Passenger Air Bag Module .........23

Installation - Side Air Bag Module (Built-in type) ......23

Disposal of Air Bag Module and Seat Belt

Pre-tensioner .............................................................24

TROUBLE DIAGNOSES - Supplemental

Restraint System (SRS) ...............................................30

Trouble Diagnoses Introduction.................................30

How to Perform Trouble Diagnoses for Quick

and Accurate Repair ..................................................32

Schematic ..................................................................34

Wiring Diagram - SRS -.............................................35

Self-diagnosis ............................................................38

Trouble Diagnoses for Air Bag Warning Lamp..........56

Trouble Diagnosis for Seat Belt Pre-tensioner

Warning Lamp ...........................................................58

COLLISION DIAGNOSIS...............................................60

IDX

Page 47

PRECAUTION

Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER” used along with a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. The SRS composition which is available to INFINITI Q45 is as follows: ! For a frontal collision

! For a side collision

WARNING:

! To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death

in the event of a collision which would result in air bag inflation, all maintenance should be performed by an authorized INFINITI dealer.

! Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-

sonal injury caused by unintentional activation of the system.

! Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

EXIT

RS-2

Page 48

SEAT BELTS

CAUTION:

! Before removing the seat belt pre-tensioner assembly, turn the ignition switch off, disconnect both

battery cables and wait at least 3 minutes.

! Do not use electrical test equipment for seat belt pre-tensioner connector. ! After replacing or reinstalling seat belt pre-tensioner assembly, or reconnecting seat belt pre-ten-

sioner connector, check the system function. Refer to “Self-diagnosis” (RS-39) for details.

! Do not use disassemble buckle or seat belt assembly. ! Replace anchor bolts if they are deformed or worn out. ! Never oil tongue and buckle. ! If any component of seat belt assembly is questionable, do not repair. Replace the whole seat belt

assembly.

! If webbing is cut, frayed, or damaged, replace seat belt assembly. ! When replacing seat belt assembly, use a genuine seat belt assembly.

AFTER A COLLISION

WARNING:

Inspect all seat belt assemblies including retractors and attaching hardware after any collision. NISSAN recommends that all seat belt assemblies in use during a collision be replaced unless the collision was minor and the belts show no damage and continue to operate properly. Failure to do so could result in serious personal injury in an accident. Seat belt assemblies not in use during a collision should also be replaced if either damage or improper operation is noted. Seat belt pre-tensioner should be replaced even if the seat belts are not in use during a frontal collision in which the air bags are deployed.

Replace any seat belt assembly if: ! The seat belt was in use at the time of a collision (except for minor collisions and the belts, retractors and

buckles show no damage and continue to operate properly).

! The seat belt was damaged in an accident. (i.e. torn webbing, bent retractor or guide, etc.) ! The seat belt attaching point was damaged in an accident. Inspect the seat belt attaching area for dam-

age or distortion and repair as necessary before installing a new seat belt assembly.

! Anchor bolts are deformed or worn out. ! The seat belt pre-tensioner should be replaced even if the seat belts are not in use during the collision in

which the air bags are deployed.

EXIT

IDX

RS-3

Page 49

SEAT BELTS

Front Seat Belt

1 Slide the seat all the way forward and tilt the seatback toward the front.

2 Remove adjuster cover.

3 Slide the anchor cover.

4 Remove outer anchor bolt.

5 Remove shoulder anchor bolt.

6 Remove center pillar upper and lower garnish. Refer to BT section, “SIDE AND FLOOR TRIM” for details.

7 Disconnect seat belt pre-tensioner connector.

8 Remove the bolt securing seat belt pre-tensioner retractor, then remove seat belt and seat belt pre-ten-

sioner retractor.

9 Remove bolt securing seat belt adjuster, then remove seat belt adjuster.

EXIT

RS-4

SRS751

Page 50

SEAT BELTS

Rear Seat Belt

1 Remove rear seat. Refer to BT section, “REAR SEAT” for details.

2 Remove rear parcel shelf finisher. Refer to BT section, “SIDE AND FLOOR TRIM” for details.

3 Remove inner anchor bolt.

4 Remove outer anchor bolt.

5 Remove bolt and anchor bolt securing rear seat belt retractor.

EXIT

RS-5

SRS595

IDX

Page 51

SEAT BELTS

Rear Seat Belt (Cont’d)

EXIT

RS-6

SRS596-A

Page 52

SEAT BELTS

Seat Belt Inspection

AFTER A COLLISION

WARNING:

Replace any seat belt assembly if: ! The seat belt was in use at the time of a collision (except for minor collisions and the belts, retractors and

buckles show no damage and continue to operate properly).

! The seat belt was damaged in an accident (i.e. torn webbing, bent retractor or guide, etc.). ! The seat belt attaching point was damaged in an accident. Inspect the seat belt attaching area for dam-

age or distortion and repair as necessary before installing a new seat belt assembly.

! Anchor bolts are deformed or worn out. ! The seat belt pre-tensioner should be replaced even if the seat belts are not in use during the collision in

which the air bags are deployed.

EXIT

PRELIMINARY CHECKS

1. Check the seat belt warning lamp/chime for proper operation as follows: a. Switch ignition ON. The seat belt warning lamp should illuminate. Also, the seat belt warning chime should

sound for about seven seconds.

b. Fasten driver’s seat belt. The seat belt warning lamp should go out and the chime (if sounding) should

stop.

c. If the seat belt warning lamp is blinking, conduct self-diagnosis using CONSULT-II, and seat belt warning

lamp. Refer to “Self-diagnosis”, “TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)”, RS-39.

2. Check that the seat belt retractor, seat belt anchor and buckle bolts are securely attached.

3. Check the shoulder seat belt guide and shoulder belt height adjuster for front seats. Ensure guide swivels freely and that belt lays flat and does not bind in guide. Ensure height adjuster operates properly and holds securely.

4. Check retractor operation: a. Fully extend the seat belt webbing and check for twists, tears

or other damage.

b. Allow the seat belt to retract. Ensure that belt returns smoothly

and completely into the retractor. If the seat belt does not returns smoothly, wipe the inside of the loops with a clean paper cloth etc. because dirt built up in the loops of the upper anchors can cause the seat belts to retractor slowly.

c. Fasten the seat belt. Pull firmly on belt and buckle to ensure

belt remains latched. Unfasten seat belt. Ensure belt releases

SRS353

freely and buckle button returns to original position.

5. Repeat steps above as necessary to check the other seat belts.

RS-7

IDX

Page 53

SEAT BELTS

Seat Belt Inspection (Cont’d)

SEAT BELT RETRACTOR ON-VEHICLE CHECK

Emergency Locking Retractors (ELR) and Automatic Locking Retractors (ALR)

NOTE: All seat belt retractors are of the Emergency Locking Retractors (ELR) type. In an emergency (sudden stop) the retractor will lock and prevent the belt from extending any further. All 3-point type seat belt retractors except the driver’s seat belt also have an Automatic Locking Retractors (ALR) mode. The ALR mode (also called child restraint mode) is used when installing child seats. The ALR mode is activated when the seat belt is fully extended. When the belt is then retracted partially, the ALR mode automatically locks the seat belt in a specific position so the belt cannot be extended any further. To cancel the ALR mode, allow the seat belt to fully wind back into the retractor.

Check the seat belt retractors using the following test(s) to determine if a retractor assembly is operating properly.

ELR function stationary check

Grasp the shoulder belt and pull forward quickly. The retractor should lock and prevent the belt from extending further.

ALR function stationary check

1. Pull out entire length of seat belt from retractor until a click is heard.

2. Retract the belt partially. A clicking noise should be heard as the belt retracts indicating retractor is in the Automatic Locking Retractors (ALR) mode.

3. Grasp the seat belt and try to pull out of retractor. Belt must lock and not extend further. If NG, replace the retractor assembly.

4. Allow the entire length of belt to retract to cancel the ALR mode.

EXIT

ELR function moving check

WARNING:

Perform the following test in a safe, open area clear of other vehicles and obstructions (for example, a large, empty parking lot). Road surface must be paved and dry. DO NOT perform the following test on wet or gravel roads or on public streets and highways. This could result in an accident and serious personal injury. The driver and passenger must be prepared to brace themselves in the event the retractor does not lock.

1. Fasten driver’s seat belt. Buckle a passenger into the seat for the belt.

2. Proceed to the designated safe area.

3. Drive the vehicle at approximately 16 km/h (10 MPH). Notify any passengers of the pending sudden stop and the driver and passenger must be prepared to brace themselves in the event the retractor does not lock. Apply brakes firmly and make a very hard stop.

During the stop, seat belts should lock and not extend. If the seat belt retractor assembly does not lock, perform the retractor off-vehicle check.

RS-8

Page 54

SEAT BELTS

Seat Belt Inspection (Cont’d)

SEAT BELT RETRACTOR OFF-VEHICLE CHECK

1. Remove the seat belt retractor assembly.

2. Slowly pull out belt while tilting the retractor assembly forward from the mounted position without twisting the retractor as shown in the illustration.

15 degrees or less tilt: Belt can be pulled out. 35 degrees or more tilt: Belt locks and cannot be pulled out.

EXIT

If NG, replace the retractor assembly.

SRS404-B

RS-9

IDX

Page 55

SEAT BELTS

Tether Anchor Plate

REMOVAL AND INSTALLATION

CAUTION:

Replace anchor bolts if they are deformed or worn out.

EXIT

1. Remove tether anchor plate cover.

2. Remove tether anchor plate.

NOTE: ! To install, reverse the removal procedure sequence.

SRS766-A

RS-10

Page 56

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

! Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual. ! Before servicing the SRS, turn ignition switch “OFF”, disconnect both battery cables and wait at least 3

minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

! Diagnosis sensor unit must always be installed with their arrow marks “!” pointing towards the front of

the vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before installation and replace as required.

! The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to

turn steering wheel or column after removal of steering gear.

! Handle air bag module carefully. Always place driver and passenger air bag modules with the pad side

facing upward and side air bag module (built-in type) with the stud bolt side facing down.

! Conduct self-diagnosis to check entire SRS for proper function after replacing any components. ! After air bag inflates, the front instrument panel assembly should be replaced if damaged.

EXIT

Special Service Tools

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number (Kent-Moore No.) Tool name

KV991072S0 (J38381-KIT) Air bag deployment kit

KV99106400 (J38381) Deployment tool

KV991065S0 (J38381-30) Deployment tool adapters

KV99105300 (J41246) Air bag module bracket

Description

Disposing of air bag module

NT357

*Deployment tool adapters for seat belt pre-tensioner and for passenger air bag module with black connector are not necessary for servicing INFINITI Q45.

NT353

Anchoring air bag module

NT354

HT61961000 and HT62152000 combined (J38219) *Special torx bit

NT361

KV99108200 (J38381-50) Deployment tool adapters for seat belt pre-tensioner

NT721

*: Special tool or commercial equivalent

RS-11

Use for special bolts [TAMPER RESISTANT TORX (Size T50)]

a: 3.5 (0.138) dia. b: 8.5 - 8.6 (0.335 - 0.339) dia. c: approx. 10 (0.39) sq.

Unit: mm (in)

IDX

Page 57

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Description

The air bag deploys if the diagnosis sensor unit activates while the ignition switch is in “ON” or “START” position.

EXIT

SRS585-C

The collision modes for which supplemental restraint systems are activated are different among the SRS systems. For example, the driver air bag module and passenger air bag module are activated in a frontal collision but not in a side collision. SRS configurations which are activated for some collision modes are as follows;

SRS configuration Frontal collision Left side collision Right side collision

Driver air bag module " ——

Passenger air bag module " ——

Seat belt pre-tensioner (LH) " ——

Seat belt pre-tensioner (RH) " ——

Side air bag module (LH) — " —

Side air bag module (RH) — — "

RS-12

Page 58

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Seat Belt Pre-tensioner with Load Limiter

The seat belt pre-tensioner system with load limiter is installed to both the driver’s seat and the front passenger’s seat. It operates simultaneously with the SRS air bag system in the event of a frontal collision with an impact exceeding a specified level. When the frontal collision with an impact exceeding a specified level occurs, seat belt slack resulting from clothing or other factors is immediately taken up by the pre-tensioner. Vehicle passengers are securely restrained. When passengers in a vehicle are thrown forward in a collision and the restraining force of the seat belt exceeds a specified level, the stopper-A pin will break, allowing the ring gear to rotate. At this point, resistance force from the belt housing is applied to the wire attached to the ring gear so that the wire keeps a constant level of tension (resistance against further rotation of the ring gear in the normal direction). As the ring gear stopper-A rotates and reaches the stopper-B position, it will cease rotation, causing the seat belt webbing to stop extending. By the mechanism, the load limiter permits the specified extension of the seat belt, and a relaxation of the chest-area seat belt web tension while maintaining force.

EXIT

SRS501

SRS808

Built-in Type Side Air Bag

Side air bag is built-in type. The front seat back with built-in type side air bag has the label shown in the figure at left.

RS-13

IDX

Page 59

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SRS Component Parts Location

EXIT

SRS222

SRS768

Maintenance Items

CAUTION:

Do not use a circuit tester to check SRS circuit.

1. Check operation of “AIR BAG” and “SEAT BELT” warning lamps. After turning ignition key to “ON” position, both warning lamps illuminate. The “AIR BAG” warning lamp will go off after about 7 seconds if no malfunction is detected. The “SEAT BELT” warning lamp will also go off after about 7 seconds after seat belt has been fastened and no malfunction is detected. (When seat belt has not been fastened, the warning lamp continues to illuminate until seat belt is fastened.) If any of the following warning lamp conditions occur, immediately check the air bag or seat belt pre-tensioner system. Refer to RS-38 or RS-39 for details.

! The “AIR BAG” or “SEAT BELT” warning lamp does not illumi-

nate when the ignition switch is turned “ON”.

! The “AIR BAG” or “SEAT BELT” (with seat belt fastened) warn-

ing lamp does not go off about 7 seconds after the ignition switch is turned “ON”.

! The “AIR BAG” or “SEAT BELT” (with seat belt fastened) warn-

ing lamp blinks after about 7 seconds after the ignition switch is turned “ON”.

RS-14

Page 60

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Maintenance Items (Cont’d)

2. Visually check SRS components.

(1) Diagnosis sensor unit ! Check diagnosis sensor unit and bracket for dents, cracks and

deformities.

! Check connectors for damage and terminals for deformities.

(2) Air bag module and steering wheel ! Remove air bag module from steering wheel, instrument panel

or seatback. Check harness cover and connectors for damage, terminals for deformities, and harness for binding.

! Install driver air bag module to steering wheel to check fit or

alignment with the wheel.

! Check steering wheel for excessive free play. ! Install passenger air bag module to instrument panel to check

fit or alignment with the instrument panel.

! Install side air bag module to seatback to check fit and align-

ment with the seat.

(3) Spiral cable

! Check spiral cable for dents, cracks and deformities. ! Check connectors and protective tape for damage. ! Check steering wheel for noise, binding and heavy operation.

EXIT

(4) Main harness, air bag harness, body harness, side air bag

module sub-harness

! Check connectors for poor connections, damage, and termi-

nals for deformities.

! Check harnesses for binding, chafing and cuts.

(5) Seat belt pre-tensioner ! Check harness cover and connectors for damage, terminals

for deformities, and harness for binding.

! Check belts for damage and anchors for loose mounting. ! Check retractor for smooth operation. ! Perform self-diagnosis for seat belt pre-tensioner using seat

belt warning lamp or CONSULT-II. Refer to “Self-diagnosis” for details. (RS-39)

(6) Satellite sensor ! Check satellite sensor (including bracket portion) for dents,

cracks or deformities.

! Check connectors for damage, and terminals for deformities.

CAUTION:

Replace previously used special bolts and ground bolt with new ones.

RS-15

IDX

Page 61

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Removal and Installation — Diagnosis Sensor Unit, Seat Belt Pre-tensioner and Satellite Sensor

CAUTION:

! Before servicing SRS, turn the ignition switch off, disconnect both battery cables and wait at least

3 minutes.

! The special bolts are coated with bonding agent while the other bolt is for ground. Do not use old

bolts after removal; replace with new ones.

! Check diagnosis sensor unit, seat belt pre-tensioner and satellite sensor for proper installation. ! Check diagnosis sensor unit and satellite sensor to ensure they are free of deformities, dents,

cracks or rust. If they show any visible signs of damage, replace them with new ones.

! Check diagnosis sensor unit brackets to ensure they are free of deformities and rust. ! After replacement of diagnosis sensor unit, seat belt pre-tensioner and satellite sensor, check SRS

function and perform self-diagnosis for SRS. Refer to “Self-diagnosis” for details. (RS-38)

! Do not attempt to disassemble diagnosis sensor unit, seat belt pre-tensioner and satellite sensor. ! Replace diagnosis sensor unit, seat belt pre-tensioner and satellite sensor if it has been dropped

or sustained an impact.

! Do not expose seat belt pre-tensioner to temperatures exceeding 80°C (176°F).

EXIT

SRS323-A

REMOVAL OF DIAGNOSIS SENSOR UNIT

1. Disconnect driver, passenger and side air bag module connectors. Also, disconnect seat belt pre-tensioner connector.

2. Remove console box. Refer to BT section, “INSTRUMENT PANEL”.

3. Disconnect diagnosis sensor unit connector.

4. Remove ground bolt and also remove special bolts using the TAMPER RESISTANT TORX (Size T50), from diagnosis sensor unit. Then remove the diagnosis sensor unit.

NOTE: ! To install, reverse the removal procedure sequence.

REMOVAL OF SEAT BELT PRE-TENSIONER

For removal of seat belt pre-tensioner, refer to “Front Seat Belt” for details. (RS-4)

NOTE: ! To install, reverse the removal procedure sequence.

SRS224-A

RS-16

Page 62

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Removal and Installation — Diagnosis Sensor Unit, Seat Belt Pre-tensioner and Satellite Sensor (Cont’d)

REMOVAL OF SATELLITE SENSOR

1. Remove seat belt pre-tensioner. Refer to “REMOVAL OF SEAT BELT PRE-TENSIONER” for details. (RS-16)

2. Disconnect satellite sensor connector.

3. Remove bolt and nuts from satellite sensor unit. Then remove the satellite sensor.

NOTE: ! To install, reverse the removal procedure sequence.

EXIT

SRS324-B

RS-17

IDX

Page 63

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Removal — Driver Air Bag Module and Spiral Cable

EXIT

SBF811E

SRS597-A

CAUTION:

! Before servicing SRS, turn the ignition switch off, discon-

nect both battery cables and wait at least 3 minutes.

! Always work from the side of air bag module.

1. Remove lower lid from steering wheel, and disconnect air bag module connector.

2. Remove side lids, and remove ASCD switch and audio unit steering switch (or TEL switch).

SBF812E

3. Using the TAMPER RESISTANT TORX (Size T50), remove left and right special bolts. Air bag module can then be removed.

RS-18

Page 64

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Removal — Driver Air Bag Module and Spiral Cable (Cont’d)

CAUTION:

! Always place air bag module with pad side facing upward. ! Do not attempt to disassemble air bag module. ! The special bolts are coated with bonding agent. Do not

use old bolts after removal; replace with new ones.

! Do not insert any foreign objects (screwdriver, etc.) into

air bag module connector.

EXIT

SRS226

SBF814E

SBF239F

! Replace air bag module if it has been dropped or sus-

tained an impact.

! Do not expose the air bag module to temperatures exceed-

ing 90°C (194°F).

! Do not allow oil, grease or water to come in contact with

the air bag module.

4. Set steering wheel in the neutral position.

5. Disconnect horn connector and remove nuts.

6. Remove dynamic damper. Then using steering wheel puller, remove steering wheel. Be careful not to over-tighten puller bolt on steering wheel.

CAUTION:

! Do not tap or bump the steering wheel.

7. Remove steering column cover.

SRS384

SRS227

8. Unlock the spiral cable connector. Then disconnect connector and remove the four screws. The spiral cable can then be removed.

CAUTION:

! Do not attempt to disassemble spiral cable. ! Do not apply lubricant to the spiral cable.

Removal — Front Passenger Air Bag Module

CAUTION:

! Before servicing SRS, turn the ignition switch off, discon-

nect both battery cables and wait at least 3 minutes.

! Always work from the side of or under air bag module.

1. Remove lower instrument cover.

2. Remove connector bracket from air bag module and disconnect inflator connector from body harness air bag connector.

3. Remove glove box assembly. Refer to BT section, “INSTRUMENT PANEL” for details.

RS-19

IDX

Page 65

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Removal — Front Passenger Air Bag Module (Cont’d)

4. Remove special bolts from air bag module using TAMPER RESISTANT TORX (Size T50).

5. Remove mounting bolts from back of instrument assembly.

6. Move air bag module upward, and remove it from instrument assembly.

! The air bag module is heavy and should be supported using

both hands during removal.

SRS228-A

CAUTION:

! Always place air bag module with pad side facing upward. ! Do not attempt to disassemble air bag module. ! The special bolts are coated with bonding agent. Do not

use old bolts after removal; replace with new coated bolts.

! Do not insert any foreign objects (screwdriver, etc.) into

air bag module connector.

EXIT

SRS229

SBF814E

! Replace air bag module if it has been dropped or sus-

tained an impact.

! Do not expose the air bag module to temperatures exceed-

ing 90°C (194°F).

! Do not allow oil, grease or water to come in contact with

the air bag module.

! After air bag inflates, the front instrument panel assembly

should be replaced if damaged.

Removal — Side Air Bag Module (Built-in type)

CAUTION:

! Before servicing SRS, turn the ignition switch off, discon-

nect both battery cables and wait at least 3 minutes.

! Always work from the rear of air bag module.

1. Remove seat back board.

! When using a clip removal tool to remove the seat back

board, take care not to damage the air bag harness.

2. Disconnect side air bag module connector.

SRS325

RS-20

Page 66

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Removal — Side Air Bag Module (Built-in type) (Cont’d)

EXIT

SRS573

SRS809

3. Pull up the seat back trim.

4. Remove the nuts securing the inner cloth which covers side air bag module. Then pull up the inner cloth.

5. Remove the screws securing the seat back finisher. Then remove the seat back finisher.

6. Remove the torx nuts coated with bonding agent from side air bag module.

7. Remove harness clips. Side air bag module can then be removed.

CAUTION:

! Always place the air bag module with the stud bolt side

facing down.

! Do not attempt to disassemble air bag module. ! The torx nuts are coated with bonding agent. Do not use

old nuts after removal; replace with new coated nuts.

! Do not insert any foreign objects (screwdriver, etc.) into

air bag module connector.

! Replace air bag module if it has been dropped or sus-

tained an impact.

! Do not expose the air bag module to temperatures exceed-

ing 90°C (194°F).

! Do not allow oil, grease or water to come in contact with

the air bag module.

! After air bag inflates, all parts of front seat back (includ-

ing front seat back frame) should be replaced.

IDX

SBF814E

RS-21

Page 67

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Installation — Driver Air Bag Module and Spiral Cable

1. Set the front wheels in the straight-ahead position.

2. Make sure that the spiral cable is in the neutral position. The neutral position is detected by turning left about 2.5 revolutions from the right end position. Align the two marks (

CAUTION:

! The spiral cable may snap due to steering operation if the

cable is installed in an improper position. Also, with the steering linkage disconnected, the cable may snap by turning the steering wheel beyond the limited number of turns. The spiral cable can be turned up to about 2.5 turns from the neutral position to both the right and left.

3. Connect and lock spiral cable connector and tighten with screws. Install steering column cover.

EXIT

SRS358

SRS231

SBF812EH

4. Install steering, wheel setting spiral cable pin guide, and pull spiral cable through.

5. Connect horn connector and engage spiral cable with pawls in steering wheel. Move air bag module connector away from steering wheel lower lid opening.

6. Tighten nut.

: 29.4 - 39.2 N⋅m (3.0 - 4.0 kg-m, 22 - 28 ft-lb)

7. Install dynamic damper.

8. Position air bag module and tighten with new special bolts.

! Always service the air bag module from the side.

9. Connect air bag module connector.

10. Install steering switches and lid.

11. Go to “Self-diagnosis”, RS-38 and perform self-diagnosis to ensure entire SRS operates properly. (Use CONSULT-II or warning lamp check.) Before performing self-diagnosis, connect both battery cables.

12. Turn steering wheel to the left end and then to the right end fully to make sure that spiral cable is set in the neutral position. If air bag warning lamp blinks or stays ON (at the User mode), it shows the spiral cable may be snapped due to its improper position. Perform self-diagnosis again (use CONSULT-II or warning lamp). If a malfunction is detected, replace the spiral cable with a new one.

13. Perform self-diagnosis again to check that no malfunction is detected.

RS-22

Page 68

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Installation — Front Passenger Air Bag Module

! Always work from the side of or under air bag module.

1. Install front passenger air bag module on steering member.

! Ensure harness is not caught between rear of air bag module

and steering member.

2. Install glove box assembly. (Glove box lid is open.)

EXIT

SRS228-A

SRS227

3. Connect air bag module connector to body harness connector.

4. Install lower instrument cover on instrument panel assembly.

5. Connect both battery cables.

6. Go to “Self-diagnosis”, RS-38 and perform self-diagnosis to ensure entire SRS operates properly. (Use CONSULT-II or warning lamp.)

Installation — Side Air Bag Module (Built-in type)

SRS809

1. Install side air bag module on front seat with new torx nuts coated with bonding agent.

2. Secure the side air bag module harness with new harness clips.

3. Install the seat back finisher with screws.

4. Secure the inner cloth which covers the side air bag module and seat back finisher with nuts.

RS-23

IDX

Page 69

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Installation — Side Air Bag Module (Built-in type) (Cont’d)

5. Connect side air bag module connector.

6. Install seat back board with new clips.

! Ensure harness is not caught between seat back board

and seat back.

7. Connect both battery cables.

8. Go to “Self-diagnosis”, RS-38 and perform self-diagnosis to ensure entire SRS operates properly. (Use CONSULT-II or air bag warning lamp.)

EXIT

SRS328

Disposal of Air Bag Module and Seat Belt Pre-tensioner

! Before disposing of air bag module and seat belt pre-tensioner, or vehicles equipped with such systems,

deploy the systems. If such systems have already been deployed due to an accident, dispose of them as indicated in “DISPOSING OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER” (RS-29).

! When deploying the air bag module and seat belt pre-tensioner, always use the Special Service Tool;

Deployment tool KV99106400 (Kent-Moore No. J38381).

! When deploying the air bag module and seat belt pre-tensioner, stand at least 5 m (16 ft) away from the

deployment component.

! When deploying air bag module and seat belt pre-tensioner, a fairly loud noise is made, followed by smoke

being released. The smoke is not poisonous, however, be careful not to inhale smoke since it irritates the throat and can cause choking.

! Always activate one air bag module at a time. ! Due to heat, leave air bag module unattended for more than 30 minutes after deployment. Also leave seat

belt pre-tensioner unattended for move than 10 minutes after deployment.

! Be sure to wear gloves when handling a deployed air bag module and seat belt pre-tensioner. ! Never apply water to the deployed air bag module and seat belt pre-tensioner. ! Wash your hands clean after finishing work. ! Place the vehicle outdoors with an open space of at least 6 m (20 ft) on all sides when deploying air bag

module and seat belt pre-tensioner while mounted in vehicle.

! Use a voltmeter to make sure the vehicle battery is fully charged. ! Do not dispose of the air bag module and seat belt pre-tensioner un-deployed.

RS-24

Page 70

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Disposal of Air Bag Module and Seat Belt Pre-tensioner (Cont’d)

CHECKING DEPLOYMENT TOOL

Connecting to battery

CAUTION:

The battery must show voltage of 9.6V or more.

Remove the battery from the vehicle and place it on dry wood blocks approximately 5 m (16 ft) away from the vehicle. ! Wait 3 minutes after the vehicle battery is disconnected before

proceeding.

SRS005-A

! Connect red clip of deployment tool to battery positive termi-

nal and black clip to negative terminal.

Make sure the polarity is correct. The right side lamp in the tool, marked “deployment tool power”, should glow with a green light. If the right side lamp glows red, reverse the connections to the battery.

EXIT

SBF266H

Deployment tool check

Press the deployment tool switch to the “ON” position. The left side lamp in the tool, marked “air bag connector voltage” should illuminate. If it does not illuminate, replace the tool.

Air bag deployment tool lamp illumination chart (Battery connected)

Left side lamp, green*

Switch operation

OFF OFF ON

ON ON ON

*: If this lamp glows red, the tool is connected to the battery incorrectly.

Reverse the connections and make sure the lamp glows green.

“AIR BAG CONNECTOR

VOLTAGE”

Right side lamp, green*

“DEPLOYMENT TOOL

POWER”

RS-25

IDX

Page 71

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Disposal of Air Bag Module and Seat Belt Pre-tensioner (Cont’d)

DEPLOYMENT PROCEDURES FOR AIR BAG MODULE (OUTSIDE OF VEHICLE)

Unless the vehicle is being scrapped, deploying the air bag in the vehicle is not recommended. This may cause damage to the vehicle interior. Anchor air bag module bracket [KV99105300 (J41246)] in a vise secured to a firm foundation during deployment.

EXIT

SRS232-C

SRS233

SRS234

Deployment of driver’s air bag module (outside of vehicle)

1. Using wire, secure air bag module to air bag module bracket [SST: KV99105300 (J41246)] at two places.

CAUTION:

Use wire of at least 1 mm (0.04 in) diameter.

2. Firmly secure air bag module bracket [SST: KV99105300 (J41246)] with air bag module attached, in a vise.

3. Connect deployment tool [SST: KV99106400 (J38381)] to air bag module connector.

SRS235

SRS236

4. Connect red clip of deployment tool to battery positive terminal and black clip to negative terminal.

5. The lamp on the right side of the tool, marked “deployment tool power”, should glow green, not red.

6. Press the button on the deployment tool. The left side lamp on the tool, marked “air bag connector voltage”, will illuminate and the air bag module will deploy.

CAUTION:

When deploying the air bag module, stand at least 5 m (16 ft) away from the air bag module.

Deployment of passenger air bag module (outside of vehicle)

1. Make an 8.5 mm (0.335 in) diameter hole in air bag module bracket [SST: KV99105300 (J41246)] at the position shown in figure at left.

RS-26

Page 72

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Disposal of Air Bag Module and Seat Belt Pre-tensioner (Cont’d)

2. Firmly secure air bag module bracket [SST: KV99105300 (J41246)] in a vise.

3. Match the two holes in air bag module bracket (held in vise) and passenger air bag module and fix them with two bolts [M8 x 25 - 30 mm (0.98 - 1.18 in)].

CAUTION:

If a gap exists between passenger air bag module and air bag module bracket, use a piece of wood inserted in the gap to stabilize the air bag module.

SRS237

4. Connect deployment tool adapter [SST: KV991065S0 (J38381-

30)] to deployment tool [SST: KV99106400 (J38381)] connector and connector of air bag module.

5. Connect red clip of deployment tool to battery positive terminal and black clip to negative terminal.

6. The lamp on the right side of the tool, marked “deployment tool power”, should glow green, not red.

7. Press the button on the deployment tool. The left side lamp on the tool, marked “air bag connector voltage”, will illuminate and the air bag module will deploy.

SRS239

CAUTION:

When deploying the air bag module, stand at least 5 m (16 ft) away from the air bag module.

EXIT

SRS490-A

Deployment of side air bag module (Built-in type) (outside of vehicle)

1. Make 6.5 mm (0.256 in) diameter holes in air bag module bracket [SST: KV99105300 (J41246)] at the position shown in figure at left.

2. Firmly secure air bag module bracket [SST: KV99105300 (J41246)] in a vise.

3. Insert the stud bolts of side air bag module (built-in type) into the two holes in air bag module bracket (held in vise) and fix them with two M6 nuts.

CAUTION:

Side air bag module should be secured to air bag module bracket [SST: KV99105300 (J41246)] in a vise with metal portion facing down.

IDX

SRS491-A

RS-27

Page 73

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Disposal of Air Bag Module and Seat Belt Pre-tensioner (Cont’d)

4. Connect deployment tool [SST: KV99106400 (J38381)] to side air bag module connector.

5. Connect red clip of deployment tool to battery positive terminal and black clip to negative terminal.

6. The lamp on the right side of the tool, marked “deployment tool power”, should glow green, not red.

7. Press the button on the deployment tool. The left side lamp on the tool, marked “air bag connector voltage”, will illuminate and the air bag module will deploy.

SRS020-B

CAUTION:

When deploying the air bag module, stand at least 5 m (16 ft) away from the air bag module.

EXIT

SRS810

SRS811

SRS242

Deployment of seat belt pre-tensioner (outside of vehicle)

1. Firmly grip pre-tensioner in a vise and cut the webbing off.

2. Connect deployment tool adapter [SST: KV99108200 (J38381-

50)] to deployment tool [SST: KV99106400 (J38381)] connector and seat belt pre-tensioner connector.

3. Connect red clip of deployment tool to battery positive terminal and black clip to negative terminal.

4. The lamp on the right side of the tool, marked “deployment tool power”, should glow green, not red.

5. Press the button on the deployment tool. The left side lamp on the tool, marked “seat belt pre-tensioner connector voltage”, will illuminate and the seat belt pre-tensioner will deploy.

CAUTION:

When deploying the seat belt pre-tensioner, stand at least 5 m (16 ft) away from the seat belt pre-tensioner.

RS-28

Page 74

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Disposal of Air Bag Module and Seat Belt Pre-tensioner (Cont’d)

DEPLOYMENT OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER WHILE MOUNTED IN VEHICLE

When disposing of a vehicle, deploy air bag modules and seat belt pre-tensioners while they are mounted in vehicle.

CAUTION:

When deploying air bag module or seat belt pre-tensioner, ensure vehicle is empty.

1. Disconnect both vehicle battery cables and wait 3 minutes.

SRS006-A

2. Disconnect air bag modules and seat belt pre-tensioners connector.

3. Connect deployment tool [SST: KV99106400 (J38381)] to air bag module or seat belt pre-tensioner. For front passenger air bag module, attach deployment tool adapter [SST: KV991065S0 (J38381-30)] to the tool connector. For seat belt pre-tensioner, attach deployment tool adapter [SST: KV99108200 (J38381-50)] to the tool connector.

4. Connect red clip of deployment tool to battery positive terminal and black clip to negative terminal.

5. The lamp on the right side of the tool, marked “deployment tool power”, should glow green, not red.

6. Press the button on the deployment tool. The left side lamp on the tool, marked “air bag connector voltage”, will illuminate and the air bag module or seat belt pre-tensioner will deploy.

CAUTION:

Activate only one air bag module or seat belt pre-tensioner at a time.

EXIT

SBF276H

DISPOSING OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER

Deployed air bag modules and seat belt pre-tensioners are very hot. Before disposing of air bag module, and seat belt pretensioner, wait at least 30 minutes, and 10 minutes, respectively. Seal them in a plastic bag before disposal.

CAUTION:

! Never apply water to a deployed air bag module and seat

belt pre-tensioner.

! Be sure to wear gloves when handling a deployed air bag

module and seat belt pre-tensioner.

! No poisonous gas is produced upon air bag module

deployment. However, be careful not to inhale gas since it irritates throat and can cause choking.

! Do not attempt to disassemble air bag module and seat

belt pre-tensioner.

! Air bag module and seat belt pre-tensioner cannot be re-

used.

! Wash your hands clean after finishing work.

IDX

RS-29

Page 75

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Trouble Diagnoses Introduction

CAUTION:

! Do not use electrical test equipment to check SRS harness connectors unless instructed to in this

! Do not attempt to repair, splice or modify the SRS wiring harness. If the harness is damaged,

replace it with a new one.

! Keep ground portion clean.

DIAGNOSIS FUNCTION

The SRS self-diagnosis results can be read by using “AIR BAG” warning lamp, “SEAT BELT” warning lamp and/or CONSULT-II. The reading of these results is accomplished using one of two modes — “User mode” and “Diagnosis mode”. The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system malfunction through the operation of the “AIR BAG” warning lamp and/or “SEAT BELT” warning lamp. The Diagnosis mode allows the technician to locate and inspect the malfunctioning part. The mode applications for the “AIR BAG” warning lamp, “SEAT BELT” warning lamp and CONSULT-II are as follows:

User mode Diagnosis mode Display type

“AIR BAG” warning lamp X X ON-OFF operation

“SEAT BELT” warning lamp X — ON-OFF operation

CONSULT-II — X Monitoring

EXIT

DIAGNOSIS MODE FOR CONSULT-II

! “SELF-DIAG [CURRENT]”

A current Self-diagnosis result (also indicated by the warning lamp flashes in the Diagnosis mode) is displayed on the CONSULT-II screen in real time. This refers to a malfunctioning part requiring repairs.

! “SELF-DIAG [PAST]”

Diagnosis results previously stored in the memory (also indicated by the warning lamp flashes in the Diagnosis mode) are displayed on the CONSULT-II screen. The stored results are not erased until memory erasing is executed.

! “TROUBLE DIAG RECORD”

With TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation can be displayed on the CONSULT-II screen.

! “ECU DISCRIMINATED NO.”

The diagnosis sensor unit for each vehicle model is assigned with its own, individual classification number. This number will be displayed on the CONSULT-II screen, as shown at left. When replacing the diagnosis sensor unit, refer to the part number for the compatibility. After installation, replacement with a correct unit can be checked by confirming this classification number on the CONSULT-II screen.

For INFINITI Q45, the diagnosis sensor unit classification number assigned is 2E.

SRS752

RS-30

Page 76

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Trouble Diagnoses Introduction (Cont’d)

HOW TO CHANGE SELF-DIAGNOSIS MODE

With CONSULT-II

From User mode to Diagnosis mode

After selecting AIR BAG on the “SELECT SYSTEM” screen, User mode automatically changes to Diagnosis mode.

EXIT

SRS769

From Diagnosis mode to User mode

To return to User mode from Diagnosis mode, touch “BACK” key of CONSULT-II until “SELECT SYSTEM” appears, Diagnosis mode automatically changes to User mode.

SRS770

Without CONSULT-II

From User mode to Diagnosis mode

Diagnosis mode activates only when a malfunction is detected, by pressing the driver’s door switch at least 5 times within 7 seconds after turning the ignition “ON”. SRS will not enter Diagnosis mode if no malfunction is detected.

SRS247

From Diagnosis mode to User mode

After a malfunction is repaired, switch the ignition “OFF” for at least 1 second, then back “ON”. Diagnosis mode returns to User mode. If switching from Diagnosis mode to User mode is required while malfunction is being detected, switch the ignition “OFF”, then back “ON” and press the driver’s door switch at least 5 times within 7 seconds.

RS-31

IDX

Page 77

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Trouble Diagnoses Introduction (Cont’d)

HOW TO ERASE SELF-DIAGNOSIS RESULTS

With CONSULT-II

! “SELF-DIAG [CURRENT]”

A current self-diagnosis result is displayed on the CONSULT-II screen in real time. After the malfunction is repaired completely, no malfunction is detected on “SELF-DIAG [CURRENT]”.

! “SELF-DIAG [PAST]” Return to the “SELF-DIAG [CURRENT]” CONSULT-II screen by pushing “BACK” key of CONSULT-II and select “SELF-DIAG [CURRENT]” in “SELECT DIAG MODE”. Touch “ERASE” in “SELF-DIAG [CURRENT]” mode.

NOTE: If the memory of the malfunction in “SELF-DIAG [PAST]” is not erased, the User mode shows the system malfunction by the operation of the warning lamp even if the malfunction is repaired completely.

SRS701

EXIT

! “TROUBLE DIAG RECORD”

The memory of TROUBLE DIAG RECORD cannot be erased.

Without CONSULT-II

After a malfunction is repaired, return from Diagnosis mode to User mode by switching the ignition “OFF” for at least 1 second, then back “ON”. At that time, the self-diagnosis result is cleared.

How to Perform Trouble Diagnoses for Quick and Accurate Repair

A good understanding of the malfunction conditions can make troubleshooting faster and more accurate. In general, each customer feels differently about a malfunction. It is important to fully understand the symptoms or conditions for a customer complaint.

INFORMATION FROM CUSTOMER

WHAT ............ Vehicle model

WHEN ........... Date, Frequencies

WHERE ......... Road conditions

HOW .............. Operating conditions, Symptoms

PRELIMINARY CHECK

Check that the following parts are in good order.

! Battery (Refer to EL section, “BATTERY”.) ! Fuse (Refer to EL section, “Fuse”, “POWER SUPPLY ROUTING”.) ! System component-to-harness connections

RS-32

Page 78

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

WORK FLOW

Listen to customer complaints and requests.

How to Perform Trouble Diagnoses for Quick and Accurate Repair (Cont’d)

ACTION ITEM REFERENCE ITEM

Check in

EXIT

Perform preliminary check.

Check for any Service Bulletin.

Perform self-diagnosis using “AIR BAG” warning lamp and/or “SEAT BELT” warning lamp. — User mode

Inspect malfunctioning part. — Diagnosis mode

Perform self-diagnosis using CONSULT-II.

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- OR ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Perform self-diagnosis using “AIR BAG” warning lamp.

Repair/Replace

Final check — Diagnosis mode and User mode CONSULT-II can only show one seat belt pre-tensioner malfunction as self-diagnosis result at a time. Check self-diagnosis result with CONSULT-II whether other malfunctions are detected after repairing one seat belt pre-tensioner malfunction.

Check out

Preliminary check (RS-32)

DIAGNOSTIC PROCEDURE 1 (RS-38)

DIAGNOSTIC PROCEDURE 2: Using CONSULT-II (RS-40) DIAGNOSTIC PROCEDURE 3: Using “AIR BAG” warning lamp (RS-44)

DIAGNOSTIC PROCEDURE 4: Using CONSULT-II (RS-48) DIAGNOSTIC PROCEDURE 5: Using “AIR BAG” warning lamp (RS-50)

RS-33

IDX

Page 79

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Schematic

EXIT

RS-34

TRS001M

Page 80

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Wiring Diagram — SRS —

EXIT

RS-35

IDX

TRS003M

Page 81

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Wiring Diagram — SRS — (Cont’d)

EXIT

RS-36

TRS004M

Page 82

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Wiring Diagram — SRS — (Cont’d)

EXIT

RS-37

IDX

TRS098

Page 83

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis

DIAGNOSTIC PROCEDURE 1

Checking SRS operation by using “AIR BAG” warning lamp — User mode

1. After turning ignition switch from “OFF” to “ON”, “AIR BAG” warning lamp operates.

2. Compare “AIR BAG” warning lamp operation to the chart below.

SRS244

“AIR BAG” warning lamp operation — User mode — SRS condition Reference item

No malfunction is detected. No further action is necessary.

—

MRS095A

EXIT

MRS096A

MRS097A

MRS098A

The system is malfunctioning and needs to be repaired as indicated.

Air bag (and seat belt pretensioner) is deployed.

Air bag fuse, diagnosis sensor unit or harness is malfunctioning and needs to be repaired.

One of the following has occurred and needs to be repaired.

! Meter fuse is blown. ! “AIR BAG” warning lamp

circuit has open or short.

! Diagnosis sensor unit is

malfunctioning.

Go to DIAGNOSTIC PROCEDURE 2 or 3 (RS-40 or

44).

Go to COLLISION DIAGNOSIS (RS-60).

Go to DIAGNOSTIC PROCEDURE 9 (RS-56).

Go to DIAGNOSTIC PROCEDURE 10 (RS-56).

NOTE: If “AIR BAG” warning lamp operates differently from the operations shown above, refer to “AIR BAG” warning lamp operation — Diagnosis mode —, DIAGNOSTIC PROCEDURE 3

(step 4), RS-44.

RS-38

Page 84

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

Checking seat belt pre-tensioner operation by using “SEAT BELT” warning lamp — User mode

1. After turning ignition switch from “OFF” to “ON”, “SEAT BELT” warning lamp operates.

2. Compare “SEAT BELT” warning lamp operation to the chart below.

EXIT

SRS245

“SEAT BELT” warning lamp operation SRS condition Reference item

! After driver’s seat belt has been fastened.

! When driver’s seat belt has not been fastened.

! After driver’s seat belt has been fastened.

! When driver’s seat belt has not been fastened.

! When driver’s seat belt is fastened.

MRS095A

SRS086

MRS096A

SRS344

MRS097A

No malfunction is detected. No further action is necessary.

! Seat belt pre-tensioner

circuit is opened, or

! Seat belt pre-tensioner

power supply or ground circuit is shorted.

Seat belt pre-tensioner (and air bag) is deployed.

Seat belt buckle switch, harness, combination meter assembly, diagnosis sensor unit are malfunctioning and need to be repaired.

Meter fuse, diagnosis sensor unit or “SEAT BELT” warning lamp circuit is shorted or open and needs to be repaired.

—

! If CONSULT-II is

available, go to DIAGNOSTIC PROCEDURE 2 (RS-40).

! If CONSULT-II is not

available, repair the system as follows.*

1. Visually check the wiring harness connections.

2. Replace the harness if it has visible damage.

3. Replace driver’s and front passenger seat belt assemblies. (Before disposing, they must be deactivated.)

4. Replace diagnosis sensor unit.

Go to COLLISION DIAGNOSIS (RS-60).

Go to DIAGNOSTIC PROCEDURE 12 (RS-58).

Go to DIAGNOSTIC PROCEDURE 13 (RS-59).

IDX

MRS098A

* Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is eliminated

using the seat belt warning lamp each time repair is finished. If malfunction is still observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.

RS-39

Page 85

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

DIAGNOSTIC PROCEDURE 2 ( with CONSULT-II)

Inspecting SRS malfunctioning parts by using CONSULT-II — Diagnosis mode

1. Turn ignition switch “OFF”.

2. Connect “CONSULT-II” to Data link connector.

SEF046TA

3. Turn ignition switch “ON”.

4. Touch “START”.

EXIT

SRS695

SRS771

SRS697

5. Touch “AIR BAG”.

6. Touch “SELF-DIAG [CURRENT]”.

SRS772

7. Diagnostic codes are displayed on “SELF-DIAG [CURRENT]”.

RS-40

Page 86

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

If no malfunction is detected on “SELF-DIAG [CURRENT]” but malfunction is indicated by the “AIR BAG” warning lamp, go to DIAGNOSTIC PROCEDURE 6, page RS-52, to diagnose the following situations: ! Self-diagnostic result “SELF-DIAG [PAST]” (previously stored

in the memory) might not be erased after repair.

! The SRS system malfunctions intermittently.

EXIT

SRS701

8. Touch “PRINT”.

9. Compare diagnostic codes to the CONSULT-II DIAGNOSTIC CODE CHART, page RS-41.

10. Touch “BACK” key of CONSULT-II until “SELECT SYSTEM” appears in order to return to User mode from Diagnosis mode.

11. Turn ignition switch “OFF”, then turn off and disconnect CONSULT-II and disconnect both battery cables.

12. Repair the system as outlined by the “Repair order” in CONSULT-II DIAGNOSTIC CODE CHART, that corresponds to the self-diagnosis result. For replacement procedure of component parts, refer to RS-16.

13. After repairing the system, go to DIAGNOSTIC PROCEDURE 4 for final checking, page RS-48. CONSULT-II can only show one seat belt pre-tensioner malfunction as self-diagnosis result at a time. Check self-diagnosis result with CONSULT-II whether other malfunctions are detected after repairing one seat belt pre-tensioner malfunction.

CONSULT-II DIAGNOSTIC CODE CHART (“SELF-DIAG [CURRENT]”)

Diagnostic item Explanation

NO DTC IS DETECTED When malfunction is indicated

AIRBAG MODULE [OPEN]

AIRBAG MODULE [VB-SHORT]

AIRBAG MODULE [GND-SHORT]

AIRBAG MODULE [SHORT]

by the “AIR BAG” warning lamp in User mode

! No malfunction is detected. ! Go to DIAGNOSTIC PROCE-

! Driver’s air bag module circuit is open. (including the spiral cable) 1. Visually check the wiring har-

! Driver’s air bag module circuit is shorted to some power supply

circuit. (including the spiral cable)

! Driver’s air bag module circuit is shorted to ground. (including the

spiral cable)

! Driver’s air bag module circuits are shorted to each other.

! Self-diagnostic result “SELF-

DIAG [PAST]” (previously stored in the memory) might not be erased after repair.

! Intermittent malfunction has

been detected in the past.

Repair order

Recheck SRS at each

replacement.

! Go to DIAGNOSTIC PROCE-

DURE 6 (RS-52).

DURE 4 (RS-48).

ness connection.

2. Replace the harness if it has visible damage.

3. Replace the spiral cable.

4. Replace driver’s air bag module. (Before disposal of it, it must be deployed.)

5. Replace the diagnosis sensor unit.

6. Replace the related harness.

IDX

RS-41

Page 87

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

EXIT

Diagnostic item Explanation

ASSIST A/B MODULE [VB-SHORT]

ASSIST A/B MODULE [OPEN]

ASSIST A/B MODULE [GND-SHORT]

ASSIST A/B MODULE [SHORT]

SIDE MODULE LH [OPEN]

SIDE MODULE LH [VB-SHORT]

SIDE MODULE LH [GND-SHORT]

SIDE MODULE LH [SHORT]

SIDE MODULE RH [OPEN]

SIDE MODULE RH [VB-SHORT]

SIDE MODULE RH [GND-SHORT]

SIDE MODULE RH [SHORT]

SATELLITE SENS LH [UNIT FAIL] SATELLITE SENS LH [COMM FAIL]

SATELLITE SENS RH [UNIT FAIL] SATELLITE SENS RH [COMM FAIL]

DRIVE PRE-TENSIONER [OPEN/VB-SHORT]

DRIVE PRE-TENSIONER [GND-SHORT]

! Front passenger air bag module circuit is shorted to some power

supply circuit.

! Front passenger air bag module circuit is open.

! Front passenger air bag module circuit is shorted to ground.

! Front passenger air bag module circuits are shorted to each

other.

! Side air bag module (LH) circuit is open. 1. Visually check the wiring har-

! Side air bag module (LH) circuit is shorted to some power supply

circuits.

! Side air bag module (LH) circuit is shorted to ground.

! Side air bag module (LH) circuits are shorted to each other.

! Side air bag module (RH) circuit is open. 1. Visually check the wiring har-

! Side air bag module (RH) circuit is shorted to some power supply

circuits.

! Side air bag module (RH) circuit is shorted to ground.

! Side air bag module (RH) circuits are shorted to each other.

! Satellite sensor (LH) 1. Visually check the wiring har-

! Satellite sensor (RH) 1. Visually check the wiring har-

! The circuit for the front LH pre-tensioner is open or shorted to

some power supply circuit.

! The circuit for the front LH pre-tensioner is shorted to ground.

Repair order

Recheck SRS at each

replacement.

1. Visually check the wiring harness connection.

2. Replace the harness if it has visible damage.

3. Replace front passenger air bag module. (Before disposal of it, it must be deployed.)

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

ness connection.

2. Replace the harness if it has visible damage.

3. Replace side air bag module (LH). (Before disposal, it must be deployed.)

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

ness connection.

2. Replace the harness if it has visible damage.

3. Replace side air bag module (RH). (Before disposal, it must be deployed.)

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

ness connection.

2. Replace the harness if it has visible damage.

3. Replace the satellite sensor (LH).

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

ness connection.

2. Replace the harness if it has visible damage.

3. Replace the satellite sensor (RH).

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

1. Visually check the wiring harness connections.

2. Replace the harness if it has visible damage.

3. Replace the front LH seat belt. (Before disposing, it must be deactivated.)

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

RS-42

Page 88

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

EXIT

Diagnostic item Explanation

ASSIST PRE-TENSIONER [OPEN/VB-SHORT]

ASSIST PRE-TENSIONER [GND-SHORT]

CONTROL UNIT ! Low battery voltage (Less than 9V) ! Go to DIAGNOSTIC PROCE-

* Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is eliminated

using the air bag or seat belt warning lamp or CONSULT-II each time repair is finished. If malfunction is still observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.

* CONSULT-II can only show one seat belt pre-tensioner malfunction as self-diagnosis result at a time. Check self-diagnosis

result with CONSULT-II whether other malfunctions are detected after repairing one seat belt pre-tensioner malfunction.

! The circuit for the front RH pre-tensioner is open or shorted to

some power supply circuit.

! The circuit for the front RH pre-tensioner is shorted to ground.

! Diagnosis sensor unit is malfunctioning. 1. Visually check wiring harness

1. Visually check the wiring har-

2. Replace the harness if it has

3. Replace the front RH seat

4. Replace the diagnosis sensor

5. Replace the related harness.

DURE 4 (RS-48) after charging battery.

2. Replace the harness if it has

3. Replace diagnosis sensor

4. Replae the related harness.

Repair order

Recheck SRS at each

replacement.

ness connections.

visible damage.

belt. (Before disposing, it must be deactivated.)

unit.

connections.

visible damage.

unit.

IDX

RS-43

Page 89

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

DIAGNOSTIC PROCEDURE 3 ( without CONSULTII)

Inspecting SRS malfunctioning parts by using “AIR BAG” warning lamp — Diagnosis mode

NOTE: SRS will not enter Diagnosis mode if no malfunction is detected in User mode.

1. Open driver’s door.

2. Turn ignition switch from “OFF” to “ON”.

SRS247

No. “AIR BAG” warning lamp flash pattern — Diagnosis mode — SRS condition

3. Press driver’s door switch at least 5 times within 7 seconds after turning ignition switch “ON”. SRS is now in Diagnosis mode.

4. “AIR BAG” warning lamp operates in Diagnosis mode as follows:

NOTE: If SRS does not enter Diagnosis mode even though malfunction is detected in User mode, go to DIAGNOSTIC PROCEDURE 11, page RS-57.

SRS333

SRS341

through

— Driver and passenger air

— Indicates malfunctioning

are repeated. ! Diagnosis

are repeated.

bag marker (For identifying driver and/or passenger air bag malfunctioning)

part. The number of flash varies with malfunctioning part (0.5 sec. ON and 0.5 sec. OFF is counted as one flash.)

results (previously stored in the memory) might not be erased after repair.

! Intermittent

malfunction has been detected in

the past. Go to DIAGNOSTIC PROCEDURE 7 (RS-52).

The system is malfunctioning and needs to be repaired.

EXIT

through

SRS342-A

— Indicates malfunctioning

part. The number of flash varies with malfunctioning part (0.5 sec. ON and 0.5 sec. OFF is counted as one flash.)

are repeated.

— Side air bag marker

(For identifying side air bag malfunctioning)

RS-44

Page 90

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

5. Malfunctioning part is indicated by the number of flashes (part

). Compare the number of flashes to AIR BAG WARNING LAMP FLASH CODE CHART, page RS-45, and locate malfunctioning part.

6. Turn ignition switch “OFF”, and disconnect both battery cables.

7. Repair the system as outlined by the “Repair order” in AIR BAG WARNING LAMP FLASH CODE CHART that corresponds to the flash code. For replacement procedure of component parts, refer to RS-16.

8. After repairing the system, go to DIAGNOSTIC PROCEDURE 5, page RS-50.

AIR BAG WARNING LAMP FLASH CODE CHART (DIAGNOSIS MODE)

Flash pattern

! Diagnosis results

(previously stored in the memory) might not be erased after repair.

! Intermittent malfunc-

tion has been detected in the past.

SRS333

through

are repeated.

EXIT

The driver’s air bag module circuit is out of order.

(

: 2 flashes)

Repair order

! Go to DIAGNOSTIC PROCEDURE 7 (RS-52).

Flash pattern

Repair order (“Recheck SRS at each replacement.”)

1. Visually check the wiring harness connection.

2. Replace the harness if it has visible damage.

3. Replace driver’s air bag module. (Before disposal, it must be deployed.)

4. Replace the spiral cable.

5. Replace the diagnosis sensor unit.

6. Replace the related harness.

SRS334

through

— Two flashes indicate

are repeated.

malfunctioning driver’s air bag module circuit.

IDX

RS-45

Page 91

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

The diagnosis sensor unit is out of order.

(

: 7 flashes)

Self-diagnosis (Cont’d)

Flash pattern

Repair order (“Recheck SRS at each replacement.”)

1. Visually check the wiring harness connections.

2. Replace the diagnosis sensor unit.

3. Replace the related harness.

Flash pattern

SRS335

through

— Seven flashes indicate

are repeated.

malfunctioning diagnosis sensor unit.

through

— Eight flashes indicate

are repeated.

malfunctioning front passenger air bag module circuit.

EXIT

The front passenger air bag module circuit is out of order.

(

: 8 flashes)

The side air bag module (RH) circuit is out of order.

(

: 1 flash)

Repair order (“Recheck SRS at each replacement.”)

1. Visually check the wiring harness connection.

2. Replace the harness if it has visible damage.

3. Replace front passenger air bag module. (Before disposal, it must be deployed.)

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

Flash pattern

Repair order (“Recheck SRS at each replacement.”)

1. Visually check the wiring harness connection.

2. Replace the harness if it has visible damage.

3. Replace side air bag module (RH). (Before disposal, it must be deployed.)

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

SRS336

SRS338

through

— One flash indicates mal-

are repeated.

functioning side air bag module (RH) circuit.

RS-46

Page 92

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

Flash pattern

through

— Two flashes indicate

are repeated.

malfunctioning side air bag module (LH) circuit.

EXIT

The side air bag module (LH) circuit is out of order.

(

: 2 flashes)

The satellite sensor (RH) is out of order.

(

: 3 flashes)

Repair order (“Recheck SRS at each replacement.”)

1. Visually check the wiring harness connection.

2. Replace the harness if it has visible damage.

3. Replace side air bag module (LH). (Before disposal, it must be deployed.)

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

Flash pattern

SRS337

SRS340

through

— Three flashes indicate

are repeated.

malfunctioning satellite sensor (RH) circuit.

Repair order (“Recheck SRS at each replacement.”)

1. Visually check the wiring harness connection.

2. Replace the harness if it has visible damage.

3. Replace the satellite sensor (RH).

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

Flash pattern

through

— Four flashes indicate

The satellite sensor (LH) is out of order.

(

: 4 flashes)

SRS339-A

Repair order (“Recheck SRS at each replacement.”)

1. Visually check the wiring harness connection.

2. Replace the harness if it has visible damage.

3. Replace the satellite sensor (LH).

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

* Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is eliminated

using the air bag warning lamp (in User mode) or CONSULT-II each time repair is finished. If malfunction is still observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.

are repeated.

malfunctioning satellite sensor (LH) circuit.

RS-47

IDX

Page 93

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

DIAGNOSTIC PROCEDURE 4 ( with CONSULT-II)

Final checking after repairing SRS by using CONSULT-II — Diagnosis mode

1. After repairing SRS, connect both battery cables.

2. Connect CONSULT-II to Data link connector.

3. Turn ignition switch from “OFF” to “ON”.

SEF046TA

4. Touch “START”.

EXIT

SRS695

SRS771

SRS697

5. Touch “AIR BAG”.

6. Touch “SELF-DIAG [CURRENT]”.

SRS701

7. If no malfunction is detected on “SELF-DIAG [CURRENT]”, repair of SRS is completed. Go to step 8. (When the malfunction was only in seat belt pre-tensioner system, go to step 11.) If any malfunction is detected on “SELF-DIAG [CURRENT]”, the malfunctioning part is not repaired completely or another malfunctioning part is detected. Go to DIAGNOSTIC PROCEDURE 2, page RS-40, and repair malfunctioning part completely.

RS-48

Page 94

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

8. Touch “ERASE”.

NOTE: Touch “ERASE” to clear the memory of the malfunction (“SELF-DIAG [PAST]”).

If the memory of the malfunction is “SELF-DIAG [PAST]” is not erased, the User mode shows the system malfunction by the operation of the warning lamp even if the malfunction is repaired completely.

EXIT

SRS773

SRS771

SRS702

9. Touch “BACK” key of CONSULT-II to select “SELF-DIAG [PAST]” in the “SELECT DIAG MODE” screen. Touch “SELFDIAG [PAST]”.

10. Check that no malfunction is detected on “SELF-DIAG [PAST]”.

NOTE: Past malfunction for seat belt pre-tensioner system will not be displayed on “SELF-DIAG [PAST]”.

11. Touch “BACK” key of CONSULT-II until SELECT SYSTEM appears in order to return to User mode from Diagnosis mode.

12. Turn ignition switch “OFF” then turn off and disconnect CONSULT-II.

13. Go to DIAGNOSTIC PROCEDURE 1, page RS-38 to check

SRS operation by using “AIR BAG” warning lamp with User mode.

RS-49

IDX

Page 95

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

DIAGNOSTIC PROCEDURE 5 ( without CONSULTII)

Final checking after repairing SRS by using “AIR BAG” warning lamp — Diagnosis mode and User mode

1. After repairing SRS connect both battery cables.

2. Open driver’s door.

3. Turn ignition switch from “OFF” to “ON”.

4. “AIR BAG” warning lamp operates in Diagnosis mode as follows:

SRS247

No. “AIR BAG” warning lamp flash pattern — Diagnosis mode — SRS condition

through

are repeated. No malfunc-

tion is detected or repair is completed. No further action is necessary.

EXIT

SRS333

through

— Driver and passenger air

SRS341

SRS342-A

— Indicates malfunctioning

through

— Indicates malfunctioning

are repeated.

bag marker (For identifying driver and/or passenger air bag malfunctioning)

part. The number of flashes varies with malfunctioning part (0.5 sec. ON and 0.5 sec. OFF is counted as one flash.)

are repeated.

— Side air bag marker

(For identifying side air bag malfunctioning)

part. The number of flashes varies with malfunctioning part (0.5 sec. ON and 0.5 sec. OFF is counted as one flash.)

The system is malfunctioning and needs to be repaired.

NOTE: When diagnosis sensor unit is replaced with new one, “AIR BAG” warning lamp will operate in User mode. Checking “AIR BAG” warning lamp operation in Diagnosis mode is not required. Go to step 6.

RS-50

Page 96

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

5. If “AIR BAG” warning lamp operates as shown in No. 1 in chart above, turn ignition switch “OFF” to reset from Diagnosis mode to User mode and to erase the memory of the malfunction. Then go to step 6.

EXIT

If “AIR BAG” warning lamp operates as shown in No. 2 or No. 3 in chart above, the malfunctioning part is not repaired completely, or another malfunctioning part is detected. Go to DIAGNOSTIC PROCEDURE 3, page RS-44, and repair malfunctioning part completely.

6. Turn ignition switch “ON”. “AIR BAG” warning lamp operates in User mode. Compare “AIR BAG” warning lamp operation to the chart below.

NOTE: If switching Diagnosis mode to User mode is required while malfunction is being detected, turn ignition switch from “OFF” to “ON”. Then press driver’s door switch at least 5 times within 7 seconds after turning ignition switch “ON”. SRS is now in User mode.

“AIR BAG” warning lamp operation — User mode — SRS condition Reference item

No malfunction is detected. No further action is necessary.

—

MRS095A

MRS096A

MRS097A

MRS098A

The system is malfunctioning and needs to be repaired as indicated.

Air bag is deployed. Go to COLLISION DIAG-

Air bag fuse, diagnosis sensor unit or harness is malfunctioning and needs to be repaired.

One of the following has occurred and needs to be repaired.

! Meter fuse is blown. ! “AIR BAG” warning lamp

circuit has open or short.

! Diagnosis sensor unit is

malfunctioning.

Go to DIAGNOSTIC PROCEDURE 3 (RS-44).

NOSIS (RS-60).

Go to DIAGNOSTIC PROCEDURE 9 (RS-56).

Go to DIAGNOSTIC PROCEDURE 10 (RS-56).

IDX

RS-51

Page 97

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

DIAGNOSTIC PROCEDURE 6 (Continued from DIAGNOSTIC PROCEDURE 2) (

Inspecting SRS malfunctioning record

Is it the first time for maintenance of SRS?

Yes

GO TO DIAGNOSTIC PROCEDURE 8 (RS-53).

DIAGNOSTIC PROCEDURE 7 (Continued from DIAGNOSTIC PROCEDURE 3) ( II)

Inspecting SRS malfunctioning record

Is it the first time for maintenance of SRS?

Yes

with CONSULT-II)

Self-diagnostic result

“SELF-DIAG [PAST]” (previously stored in the memory) might not be erased after repair. Go to DIAGNOSTIC PROCEDURE 4 (RS-48).

without CONSULT-

Diagnosis results (previ-

ously stored in the memory) might not be erased after repair. Go to DIAGNOSTIC PROCEDURE 5, step 5 (RS-

50).

EXIT

GO TO DIAGNOSTIC PROCEDURE 8 (RS-53). Further inspection cannot be performed without CONSULT-II.

RS-52

Page 98

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

DIAGNOSTIC PROCEDURE 8 ( with CONSULT-II)

Inspecting SRS intermittent malfunction by using CONSULT-II — Diagnosis mode

1. Turn ignition switch “OFF”.

2. Connect “CONSULT-II” to Data link connector.

EXIT

SEF046TA

SRS695

SRS771

3. Turn ignition switch “ON”.

4. Touch “START”.

5. Touch “AIR BAG”.

SRS697

SRS700

6. Touch “SELF-DIAG [PAST]”.

7. If diagnostic codes are displayed on “SELF-DIAG [PAST]”, go to step 10.

RS-53

IDX

Page 99

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

If no malfunction is detected on “SELF-DIAG [PAST]”, touch “BACK” and go back to “SELECT DIAG MODE”.

NOTE: Past malfunction for seat belt pre-tensioner system will not be displayed on “SELF-DIAG [PAST]”.

SRS702

8. Touch “TROUBLE DIAG RECORD”.

NOTE: With TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation can be displayed.

EXIT

SRS697

SRS704

9. Diagnostic code is displayed on “TROUBLE DIAG RECORD”.

10. Touch “PRINT”.

11. Compare diagnostic codes to the INTERMITTENT MALFUNCTION DIAGNOSTIC CODE CHART, page RS-55.

12. Touch “BACK” key of CONSULT-II until SELECT SYSTEM appears.

13. Turn ignition switch “OFF”, then turn off and disconnect CONSULT-II and disconnect both battery cables.

14. Repair the system as outlined by the “Repair order” in INTERMITTENT MALFUNCTION DIAGNOSTIC CODE CHART, that corresponds to the self-diagnosis result. For replacement procedure of component parts, refer to RS-16.

15. Go to DIAGNOSTIC PROCEDURE 4, page RS-48, for final

checking.

RS-54

Page 100

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

INTERMITTENT MALFUNCTION DIAGNOSTIC CODE CHART (“SELF-DIAG [PAST] or TROUBLE DIAG RECORD”)

Diagnostic item Explanation Repair order

NO DTC IS DETECTED ! No malfunction is detected. ! Go to DIAGNOSTIC PROCEDURE 4 (RS-48).

AIRBAG MODULE [OPEN]

AIRBAG MODULE [VB-SHORT]

AIRBAG MODULE [GND-SHORT]

AIRBAG MODULE [SHORT]

ASSIST A/B MODULE [VB-SHORT]

ASSIST A/B MODULE [OPEN]

ASSIST A/B MODULE [GND-SHORT]

ASSIST A/B MODULE [SHORT]

SIDE MODULE LH [OPEN]

SIDE MODULE LH [VB-SHORT]

SIDE MODULE LH [GND-SHORT]

SIDE MODULE LH [SHORT]

SIDE MODULE RH [OPEN]

SIDE MODULE RH [VB-SHORT]

SIDE MODULE RH [GND-SHORT]

SIDE MODULE RH [SHORT]

SATELLITE SENS LH [UNIT FAIL] SATELLITE SENS LH [COMM FAIL]

SATELLITE SENS RH [UNIT FAIL] SATELLITE SENS RH [COMM FAIL]

CONTROL UNIT ! Diagnosis sensor unit is malfunctioning. 1. Visually check the wiring harness connection.

* Follow the procedures in numerical order when repairing malfunctioning parts, then make the final system check.

! Driver’s air bag module circuit is open.

(including the spiral cable)

! Driver’s air bag module circuit is shorted to

some power supply circuit. (including the spiral cable)

! Driver’s air bag module circuit is shorted to

ground. (including the spiral cable)

! Driver’s air bag module circuits are shorted to

each other.

! Front passenger air bag module circuit is

shorted to some power supply circuit.

! Front passenger air bag module circuit is

open.

! Front passenger air bag module circuit is

shorted to ground.

! Front passenger air bag module circuits are

shorted to each other.

! Side air bag module (LH) circuit is open. 1. Visually check the wiring harness connection.

! Side air bag module (LH) circuit is shorted to

some power supply circuits.

! Side air bag module (LH) circuit is shorted to

ground.

! Side air bag module (LH) circuits are shorted

to each other.

! Side air bag module (RH) circuit is open. 1. Visually check the wiring harness connection.

! Side air bag module (RH) circuit is shorted to

some power supply circuits.

! Side air bag module (RH) circuit is shorted to

ground.

! Side air bag module (RH) circuits are shorted

to each other.

! Satellite sensor (LH) 1. Visually check the wiring harness connection.

! Satellite sensor (RH) 1. Visually check the wiring harness connection.

1. Visually check the wiring harness connection.

2. Replace the harness if it has visible damage.

3. If the harness check is OK, replace the spiral cable, diagnosis sensor unit and driver air bag module. (Before disposing the driver air bag module, it must be deployed.)

1. Visually check the wiring harness connection.

2. Replace the harness if it has visible damage.

3. If the harness check is OK, replace the diagnosis sensor unit and passenger air bag module. (Before disposing the passenger air bag module, it must be deployed.)

2. Replace the harness if it has visible damage.

3. If the harness check is OK, replace the diagnosis sensor unit and side air bag module (LH). (Before disposing the side air bag module (LH), it must be deployed.)

2. Replace the harness if it has visible damage.

3. If the harness check is OK, replace the diagnosis sensor unit and side air bag module (RH). (Before disposing the side air bag module (RH), it must be deployed.)

2. Replace the harness if it has visible damage.

3. If the harness check is OK, replace the diagnosis sensor unit and satellite sensor (LH).

2. Replace the harness if it has visible damage.

3. If the harness check is OK, replace the diagnosis sensor unit and satellite sensor (RH).

2. Replace the harness if it has visible damage.

3. If the harness check is OK, replace the diagnosis sensor unit.

IDX

EXIT

RS-55

Infiniti Q45 2000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual