Infiniti QX56 2004 Workshop Manual

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Edition: February 2004 Revision: August 2007 Publication No. SM4E-1J60U2

QUICK REFERENCE INDEX

GENERAL INFORMATION

B ENGINE

TRANSMISSION/ TRANSAXLE

D DRIVELINE/AXLE

E SUSPENSION

F BRAKES

G STEERING H RESTRAINTS

I BODY

J AIR CONDITIONER

K ELECTRICAL

L MAINTENANCE M INDEX

General Information

Engine Mechanical

Engine Lubrication System

Engine Cooling System

Engine Control System

Fuel System

Exhaust System

ACC

Accelerator Control System

Automatic Transmission

Transfer

Propeller Shaft

FFD

Front Final Drive

RFD

Rear Final Drive

FAX

Front Axle

RAX

Rear Axle

FSU

Front Suspension

RSU

Rear Suspension

Road Wheels & Tires

Brake System

Parking Brake System

BRC

Brake Control System

Power Steering System

Seat Belts

SRS

Supplemental Restraint System (SRS)

Body, Lock & Security System

Glasses, Window System & Mirrors

Roof

Exterior & Interior

Instrument Panel

Seat

Adjustable Pedals

ATC

Automatic Air Conditioner

Starting & Charging System

Lighting System

Driver Information System

Wiper, Washer & Horn

BCS

Body Control System

LAN

LAN System

Audio Visual, Navigation & Telephone System

ACS

Auto Cruise Control System

Power Supply, Ground & Circuit Elements

Maintenance

IDX

Alphabetical Index

A B C D E

© 2007 NISSAN NORTH AMERICA, INC. All rights reserved. No p a rt of this Se rvice Manual m ay be reproduc ed or sto re d in a retrie val system, or tran smitted in any form, or by any means, electronic, mecha nical, photo-co pying, recording or oth erwise, without the prio r written permissi on of Nissan North America, Inc.

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This manual contains maintenance and repair procedures for the 2004 INFINITI QX56.

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 specifica lly recommended by NISSAN must first be completely satisfied that neither personal safety nor the vehicle’s safety will be jeopardized by the service method selected.

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PLEASE HELP MAKE THIS SERVICE MANUAL BETTER!

INFINITI

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:

SERVICE MANUAL: Model: Year:

PUBLICATION NO. (Refer to Quick Reference Index ):

Please describe any Service Manual issues or problems in detail:

Page number(s)

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

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

Are the trouble diagnosis procedures logical and easy to use? (circle your answer) YES NO

If no, what page number(s)?

Please describe the issue or problem in detail:

Is the organization of the manual clear and easy to follow? (circle your answer) YES NO

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:

DEALER: DEALER NO.: ADDRESS:

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

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QUICK REFERENCE CHART: QX56

2004

QUICK REFERENCE CHART: QX56 PFP:00000

Engine Tune-Up Data

Cylinder arrangement V-8

Displacement

Bore and stroke 98 x 92 mm (3.86 x 3.62 in)

Valve arrangement DOHC

Firing order 1-8-7-3-6-5-4-2

Number of piston rings

Number of main bearings 5

Compression ratio 9.8:1

Compression pressure

Cylinder number

Compression 2

Oil 1

Standard

Minimum

Differential limit between cylinders

1,520 kPa (15.5 kg/cm

1,324 kPa (13.5 kg/cm

5,552 cm

98 kPa (1.0 kg/cm

(338.80 in3 )

, 220 psi) / 200 rpm

, 192 psi) / 200 rpm

, 14 psi) / 200 rpm

ELS000YK

SEM957C

Valve timing

PBIC0187E

abcde f

232° 230° 2° 48° 3° 49°

Unit: degree

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QUICK REFERENCE CHART: QX56

Drive Belt Deflection and Tension

Tension of drive belts Auto adjustment by auto tensioner

Spark Plugs (Double Platinum Tipped)

Make NGK

Standard type PLFR5A-11

Hot type PLFR4A-11

Cold type PLFR6A-11

Gap (nominal) 1.1 mm (0.043 in)

2004

Front Wheel Alignment (Unladen*1 )

Drive type 2WD 4WD

Minimum -0° 51′ (-0.85°)-0° 33′ (-0.55°)

Camber Degree minute (decimal degree)

Caster Degree minute (decimal degree)

Kingpin inclination Degree minute (decimal degree)

Nominal -0° 6′ (-0.10°)0° 12′ (0.20°) Maximum 0° 39′ (0.65°)0° 57′ (0.95°) Cross camber 0° 45′ (0.75°) or less 0° 45′ (0.75°) or less Minimum 3° 15′ (3.25°)2°45′ (2.75°) Nominal 4° 0′ (4.00°)3° 30′ (3.50°) Maximum 4° 45′ (4.75°)4° 15′ (4.25°) Cross caster 0° 45′ (0.75°) or less 0° 45′ (0.75°) or less

13° 32′ (13.53°)13°13′ (13.22°)

ELS00112

SFA234AC

Minimum 1.8 mm (0.07 in) 1.8 mm (0.07 in)

Distance (A − B)

Total toe-in

Angle (left side and right side) Degree minute (decimal degree)

Inside

Wheel turning angle (full turn)

*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.

*2: Target value 37° 31′ (37.52°) *3: Target value 33° 59′ (33.98°) *4: Target value 37° 44′ (37.73°) *5: Target value 33° 29′ (33.48°)

Degree minute (decimal degree)

Outside Degree minute (decimal degree)

Nominal 2.8 mm (0.11 in) 2.8 mm (0.11 in)

Maximum 3.8 mm (0.15 in) 3.8 mm (0.15 in)

Minimum 0° 3′ (0.05°)0° 3′ (0.05°) Nominal 0° 5′ (0.08°)0° 5′ (0.08°) Maximum 0° 7′ (0.12°)0° 7′ (0.12°)

34° 31′ – 38° 31′ *2

(34.52° – 38.52°)

30° 59′ – 34° 59′ *3

(30.98° – 34.98°)

34° 44′ – 38° 44′ *4

(34.73° – 38.73°)

30° 29′ – 34° 29′ *5

(30.48° – 34.48°)

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QUICK REFERENCE CHART: QX56

2004

Rear Wheel Alignment

Camber Degree minute (decimal degree)

Toe-in

Distance (A - B)

Angle (left and right) Degree minute (decimal degree)

ELS0014M

Minimum 0° 0′ (0°) Nominal - 0° 30′ (-0.5°) Maximum - 1° 0′ (-1.0°) Cross camber 0° 45′ (0.75°)

SFA234AC

Minimum 0 mm (0 in)

Nominal 3.3 mm (0.130 in)

Maximum 6.6 mm (0.260 in)

Cross toe 2 mm (0.079 in)

Minimum 0° 0′ (0°) Nominal 0° 7′ (0.11°) Maximum 0° 14′ (0.22°) Cross toe 0° 8′ (0.14°)

Brake

Front brake Brake model CLZ31VC

Rotor outer diameter × thickness 320 × 26 (12.60 × 1.02) Pad Length × width × thickness 111.0 × 73.5 × 9.5 (4.73 × 2.894 × 0.374)

Cylinder bore diameter 51 (2.01)

Rear brake Brake model AD14VE

Rotor outer diameter × thickness 320 × 14 (12.60 × 0.55) Pad Length × width × thickness 83.0 × 33.0 × 8.5 (3.268 × 1.299 × 0.335)

Cylinder bore diameter 48 (1.89)

Control valve Valve model Electric brake force distribution

Brake booster Booster model C215T

Diaphragm diameter 215 (8.46)

Recommended brake fluid

Genuine NISSAN Super Heavy Duty Brake Fluid or equivalent,

DOT 3 (US FMVSS No. 116)

ELS000ZT

Unit: mm (in)

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QUICK REFERENCE CHART: QX56

2004

Disc Brake - Repair Limits

Brake model CLZ31VC (Front) AD14VE (Rear)

Brake Pad

Disc rotor

Standard thickness (new) 11.88 (0.468) 12.13 (0.478)

Repair limit thickness 1.0 (0.039) 1.0 (0.039)

Standard thickness (new) 26.0 (1.024) 14.0 (0.551)

Repair limit thickness 24.5 (0.965) 12.0 (0.472)

Maximum uneven wear (measured at 8 positions) 0.015 (0.0006) 0.015 (0.0006)

Runout limit (with it attached to the vehicle) 0.04 (0.0016) 0.05 (0.0020)

Brake Pedal

Brake pedal height (from dash lower panel top surface) 182.3 − 192.3 (7.18 − 7.57)

Depressed pedal height [under a force of 490 N (50 kg, 110 lb) with engine running] More than 90.3 (3.55)

Clearance between stopper rubber and the threaded end of stop lamp switch 0.74 − 1.96 (0.029 − 0.077) Pedal play 3 − 11 (0.12 − 0.43)

Refill Capacities

Description

Fuel

Engine oil Drain and refill

Dry engine (engine overhaul)

Cooling system With reservoir at MAX level

Automatic transmission fluid (ATF)

Rear final drive oil

Transfer fluid

Front final drive oil

Power steering fluid (PSF)

Windshield washer fluid

Air conditioning system refrigerant 1.08 ± 0.05 kg 2.38 ± 0.11 lb 2.38 ± 0.11 lb

Air conditioning system lubricants

With oil filter change

Without oil filter change

Metric US measure Imp measure

105.8

6.2

5.9

7.6

14.4

10.6

1.75

3.0

1.6

1.0

4.5

290 m

Capacity (Approximate)

28 gal 23 1/4 gal

6 1/2 qt 5 1/2 qt

6 1/4 qt 5 1/4 qt

8 qt 6 3/4 qt

3 3/4 gal 3 1/8 gal

11 1/4 qt 9 3/8 qt

3 3/4 pt 3 1/8 pt

3 1/8 qt 2 5/8 qt

3 3/8 pt 2 7/8 pt

1 1/8 qt 7/8 qt

1 1/4 gal 1 gal

9.8 fl oz 10.2 fl oz

ELS000ZU

Unit: mm (in)

ELS000ZV

Unit: mm (in)

ELS000YO

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B ENGINE

ACC

SECTION ACC

ACCELERA T OR CONTROL SYSTEM

CONTENTS

ACCELERATOR CONTROL SYSTEM ...................... 2

Removal and Installation .......................................... 2

REMOVAL ............................................................. 2

INSTALLATION ..................................................... 3

INSPECTION AFTER INSTALLATION ................. 3

SERVICE DATA AND SPECIFICATIONS (SDS) ........ 4

Accelerator Control ...................................................4

ADJUSTABLE ACCELERATOR PEDAL ...............4

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ACCELERATOR CONT ROL SYSTEM

ACCEL ER ATOR CON T ROL SYS TE M PFP:18005 Removal and Installation EBS00IKW

Adjustable Accelerator Pedal

LBIA0379E

1. Adjustab l e a cce l era tor pedal as sem bly

4. Adjustable brake pedal cable (part of the accelerator pedal assembly)

2. A/T control cable mounting bracket (par t of the accelerator pedal assembly)

3. Adjustable p ed al elec tric motor (p ar t of the accelerator pedal assembly)

CAUTION:

● Do not disassemble the accelerator pedal adjusting mechanism.

● Before removal and installation the accelerato r and brake pedals must be in the fron tmost posi-

tion. This is t o align the base position of th e accelerator and brake pedals.

● Do not disassemble the accelerator ped al assembly.

● Do not remove the acc elerator pedal position sensor from the accelerator pedal bracket.

● Avoid damage from dropping the accelerator pedal assembly during handling.

● Keep the accelerator pedal assembly away from water.

REMOVAL

1. Move the accelerator and brake pedals to the frontmost position.

2. Turn the ignition switch OFF and disconnect the negative battery terminal.

3. Disconnect the adjustable brake pedal cable from the adjustable brake pedal.

● Unlock, then pull the adjustable brake pedal cable to disconnect it from the adjustable brake pedal.

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ACCELERATOR CONT ROL SYSTEM

4. Disconnect the adjustable pedal electric motor electrical connector.

5. Disconnec t the adjustable pe dal electric motor memory electrical connector, if equipped.

6. Disconnect the accelerator position sensor electrical connector.

7. Remove the two upper and one lower accelerator pedal nuts.

8. Remove the adjustable accele rator pedal assembly.

INSTALLATION

Installation is in the reverse order of removal.

ACC

LBIA0380E

INSPECTION AFTER INSTALLATION

● Check that the accelerator pedal moves smoothly within the specified ranges.

Adjustable accelerator pedal – total pedal applied stroke : 48.3 mm (1.90 in) Adjustable accelerator pedal – total pedal adjustment travel : 73.2 mm (2.88 in)

● Depress and relea se the ac cel erator ped al to che ck t hat i t retu rns sm oothl y to the origi nal rel ease d po si-

tion.

● Perform an el ectrical inspection o f the accelerato r pedal position s ensor. Refer to EC-576, "DT C P2138

APP SENSOR" .

CAUTION:

When the harn ess connector of the accele rator pedal position senso r is disconnected, perfor m ″Accelerator Pedal Released Position Learning″. Refer to EC-44, "

Position Learning" .

Accelerator Pedal Released

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFIC ATIONS (SDS) PFP:00030 Accelerator Control EBS00IKX

ADJUSTABLE ACCELERATOR PEDAL

Total Pedal Travel and Stroke

Unit: mm (in) Adjustable accelerator pedal - total pedal applied stroke 48.3 (1.90) Adjustable accelerator pedal - total pedal adjustment travel 73.2 (2.88)

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2004 QX56

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K ELECTRICAL

SECTION ACS

AUTO CRUISE CONTROL SYSTEM

CONTENTS

ASCD

AUTOMATIC SPEED CONTROL DEVICE (ASCD) ..... 3

Description ............................................................... 3

ICC

PRECAUTIONS .......................................................... 4

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-

SIONER” .................................................................. 4

Precautions for ICC System Service ........................ 4

Wiring Diagrams and Trouble Diagnosis .................. 4

PREPARATION ........................................................... 5

Special Service Tool ................................................. 5

DESCRIPTION ............................................................ 6

Outline ...................................................................... 6

VEHICLE-TO- VEHICLE DIST ANCE CONTROL

MODE ................................................................... 6

CONVENTIONAL (FIXED SPEED) CRUISE

CONTROL MODE ................................................. 6

BRAKE ASSIST (WI TH PREVIEW FUNCTION) ..... 6

System Diagram ...... .............. ................................... 7

Components Description .......................................... 7

CAN Communicatio n ........................... ..................... 7

SYSTEM DESCRIPTION .......... ....... ..................... 7

Switch Operat io n ............................................. ......... 8

ICC System Display ................................................. 8

ACTION TEST ............................................................ 9

ICC System Running Test ........................................ 9

VEHICLE-TO- VEHICLE DIST ANCE CONTROL

MODE ................................................................... 9

CONVENTIONAL (FIXED SPEED) CRUISE

CONTROL MODE ............................................... 10

LASER BEAM AIMING ADJUSTMENT ................... 12

Outline of Laser Beam Aiming Adjustment Proce-

dure ........................................................................ 12

Preparation ............................................................. 12

Setting up the ICC Target Board ............................ 12

ADJUSTING HEIGHT OF THE ICC TARGET

BOARD ............................................................... 12

ADJUSTING THE POSI TION OF THE ICC T AR-

GET BOARD STRING .........................................13

POSITIONING THE ICC TARGET BOARD ........13

Sensor Adjustment .................................................14

CHECK AFTER THE ADJUSTMENT ..................17

ELECTRICAL UNITS LOCATION .............. ..............18

Component Parts and Harness Connector Location ...18

WIRING DIAGRAM ...................................................19

Schematic ...............................................................19

Wiring Diagram — ICC — ......................................20

TERMINALS AND REFERENCE VALUE .......... ....... 25

Terminals and Reference Values for ICC Unit ........25

Terminals and Reference Values for ICC Sensor ... 2 5

TROUBLE DIAGNOSIS — GENERAL DESCRIP-

TION ..........................................................................26

Work Flow .... ............... ............................ ................26

CONSULT-II Function (ICC) ................................... 27

CONSULT- II O PERATION ............ .......................27

WORK SUPPORT ...............................................28

SELF-DIAGNOSTIC RESULTS ...........................28

DA TA MONITOR .................................................29

ACTIVE TEST ..................................................... 30

Self-Diagnostic Function .........................................32

WITH CONSULT-II .............................................. 32

WITHOUT CONSULT-II .......................................32

SELF-DIAGNO SIS BY ICC SYST EM D ISPLAY

WILL NOT RUN ................................................... 34

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC

ITEMS ........................................................................36

Diagnostic Trouble Code (DTC) Chart ................... 36

DTC 11 CONTROL UNIT .......................................37

DTC 12 VDC CONTROL UNIT ............................... 37

DTC 20 CAN COMM CIRCUIT ...............................38

DTC 31 POWER SUPPL Y CIR 1, DTC 34 POWER

SUPPLY CIR 2 ........... ....... .....................................38

DTC 41 VHCL SPEED SE CIRC ............................39

DTC 43 VDC/TCS/ABS CIRC ................................39

DTC 45 BRAKE SW/STOP L SW ...........................40

DTC 46 OPERA TI ON SW CIRC ............................. 41

DTC 74 LASER BEAM OFF CENTER ..... ..............42

ACS

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DTC 90 STOP LAMP RLY FIX ............................... 43

DTC 92 ECM CIRCUIT ...........................................47

DTC 96 NP RANGE ............................................... 48

DTC 97 AT CIRCUIT .............................................. 48

DTC 98 GEAR POSITION ......................................49

DTC 102 LASER STAIN .........................................49

DTC 103 LASER SENSOR FAIL ............................50

DTC 104 LASER AIMING INCMP ..........................50

DTC 107 LASER COMM FAIL ................................ 51

DTC 109 LASER HIGH TEMP ...............................51

TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 52

Symptom Chart .......................................................52

Symptom 1: ON/OFF Switch Does Not Switch ON* , ON/OFF Switch Does Not Switch OFF*

..............53

Symptom 2: The ICC System Cannot Be Set (ON/

OFF Switch Tu rn s On/Off) ...................................... 53

Symptom 3: The ICC System Cannot Be Operated by the CANCEL Switch, ACCEL/RES Switch, or

DISTANCE Switch .......... ...................... .................. 54

Symptom 4: The ICC System Is Not Cancelled

When the Gear Is in Other Than ‘D’ ........................55

Symptom 5: Chime Does Not Sound ...................... 55

Symptom 6: Driving Force Is Hunting .....................56

Symptom 7: The ICC System Frequently Cannot Detect the Vehicle Ahead/The Detection Zone is

Short .......................................................................56

Symptom 8: The System Does Not Detect the Vehi -

cle Ahead at All .......................................................56

ELECTRICAL COMPONENT INSPECTION .............58

ICC Steer ing Switch ................................................58

ICC Brake Switch and Stop Lamp Switch ...............58

Parking Brake Switch ..............................................58

REMOVAL AND INSTALLATION ......... .....................59

ICC Unit ..................................................................59

ICC Sensor ......... ........................................... .........59

ICC Steer ing Switch ................................................59

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AUTOMATIC SPEED CO NTROL DEVI CE (ASCD)

[ASCD]

AUTOMATIC SPEED CONTROL DEVICE (ASCD) PFP:18930

Description EKS007NI

Regarding the information for ASCD system, refer to EC-647, "AUTOMATIC SPEED CONTROL DEVICE

(ASCD)" .

ACS

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PRECAUTIONS

[ICC]

PRECAUTIONS PFP:00001 Precautions fo r Su ppl em ental Restraint System (SRS) “AIR BAG ” and “SEAT

BELT PRE-TENSIONER”

The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front sea t belt, h el ps to red uce the ris k or sever ity of injur y to the driv er and f ron t passe nger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. Information necessary to service the system safely is included in the SRS and SB section of this Service Manual.

WARNING:

● To avoid rendering the SRS in operative , w hich cou ld increas e t he risk o f pers onal inj ury or deat h

in the event of a collision which w ould result in air bag inflation, all maintena nce must be performed by an authorized NISSAN/INFINITI dealer.

● Improper m aintenance, inclu ding incorrect removal a nd installation of the S RS, can lead to pe r-

sonal injury caused by un intenti onal act iva tion of t he syste m. Fo r removal o f Spiral Ca ble and Air Bag Modu le, see the SRS section.

● Do not use el ectrical test equ ipment on an y circuit relate d to the SRS unles s instructe d to in this

Service Manual. SR S wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.

EKS007YA

Precautions fo r ICC Syst em Service EKS007YB

● Do not look straight into the laser beam discharger when adjusting laser beam aiming.

● Turn the ON/OFF switch OFF during chassis dynamometer testing.

● Do not remove, disassemble, or reposition the ICC sensor unless told to do so.

● Erase DTC when replacing parts of ICC system, then check the operation of ICC system after adjusting

laser beam aiming if necessary.

Wiring Diagrams and Trouble Diagnosis EKS007YC

When you read wiring diagrams, refer to the following:

● Refer to GI-15, "How to Read Wiring Diagrams" in GI section.

● Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit in PG section.

When you perform trouble d iagnosis, refer to the following:

● Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section.

● Refer to GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section.

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PREPARATION

[ICC]

PREPARATION PFP:00002

Special Service Tool EKS007YD

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

Tool number (Kent-Moore No.) Tool name

KV99110100 (J-45718) ICC target board

Description

Performing laser beam aiming adjustment

PKIA0358J

ACS

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Page 17

DESCRIPTION

[ICC]

DESCRIPTION PFP:00000 Outline EKS007RI

The Intelligent Cruise Control (ICC) system automatically maintains a selected distance from the vehicle ahead according to that vehicle's speed, or at the set speed, if the road ahead is clear. The ICC function has two cruise control modes and brake assist (with preview function). The ICC system may AUTO-CANCE L fo r va rious rea sons, fo r e xampl e, wh en the w i ndshiel d w iper s are op er ated at the low s pe ed (LO) or high speed (HI) position.

VEHICLE-TO-VEHICLE DI STANCE CONTROL MODE

Vehicle-to-vehicle distance contro l mode, the same speed a s other vehicles, can be mai ntained without the constant need to adjust the operating speed as w ith a conventional cruise control system. The system is intended t o enhance the operation of the vehicle when followin g another veh icle in the same lane and direction. If the distance sensor detects a slower moving vehicle ahead, the system will reduce speed so that the vehicle ahead can be followed at th e selected distance. The system automatically controls the throttle and applies the brakes (u p to 25% of vehicle braking power) if necessary. The detection range of the sensor is approximately 390 ft (120 m) ahead. Refer to Ow ner's Manual for Intelligent Cruise Control System operating instructions.

CONVENTIONAL (FIXED SPEED) CRUISE CONTRO L MODE

Conventional (fixed speed) cruise control mode is cruising at preset speeds. Refer to Ow ner's Manual for Intelligent Cruise Control System operation instructions.

BRAKE ASSIST (WITH PREVIEW FUNCTION)

When the force ap plied to brak e pedal exceed s a certain leve l, the brake assis t is activated and ge nerates a greater braking force than that of a conventional brake booster, even with light pedal force. When the p review fun ct ion iden tif ies the need to app ly t he sud den br ake b y s ensi ng t he ve hicle ahea d in the same lane and the distance and relative speed from it, it applies the brake pre-pressure before driver depresses t he brake pedal and improves brake response by reducing its free play. Refer to Ow ner's Manual for Intelligent Cruise Control System operating instructions.

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DESCRIPTION

[ICC]

System Diagram EKS007RJ

WKIA1976E

Components Description EKS007RK

Vehicle-to-vehicle

Component

ICC unit ×××

ICC sensor ××

ECM ××

ABS actuator and electr ic unit (control unit)

Brake pressure sensor ××Detects fluid pressure in master cylinder.

Brake booster ××

BCM × Transmit front wiper request signal to ICC unit. TCM ××

distan ce control

mode

×××

Conventional (fixed sp eed ) cruise control

mode

Brake assist

(with prev iew

brake)

Description

Controls vehicle speed through ECM via CAN communication.

Irradiate laser beam, and receives reflected laser be am t o m eas ur e distanc e from pr ec eding vehicle.

Transmits throttle position signal and ICC steering switch signal to ICC unit.

Transmits wheel speed signal to ICC unit. Operates brake booster based on CAN communication.

Adjust s brake flui d pressur e based on comm and from ABS actuator and electric unit (control unit).

Transmits gear position signal and output shaft revolution signal to ICC unit.

ACS

CAN Commu n i c a tion EKS007RO

SYSTEM DESCRIPTION

Refer to LAN -5, "CAN COMMUNICATION" .

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DESCRIPTION

[ICC]

Switch Ope r a tio n EKS007RM

The system is opera ted by a master ON/OFF sw itch and four control switches , all mounted on the steering wheel.

No. S wi t ch nam e Descript ion

1 ACCEL/RES switch Resumes set speed or increases speed incrementally. 2 COAST/SET switch Sets desired cruise speed, reduces speed incrementally. 3 ON/OFF switch Master switch to activate the system. 4 CANCEL switch Deactivates system without erasing set speed. 5 DISTANCE switch Changes the following distance from: Long, Middle, Short.

ICC System Display EKS007RN

No. Component Description

1 Set vehicle speed ind icator Indi cate s t he set veh i cle speed. 2 Vehicle ahead detection indicator Indicates whether it detects a vehicle ahead.

3 Set distance indicator 4 Own vehicle indicator Indicates the base vehicle.

5 ON/OFF switch indicator lamp (Green) Indicates that the system is ON.

Intelligent cruise control system warning

lamp (Orang e)

7 Cruise set switch indicator lamp Indicates that the conventional cruise control mode is on.

Display the selected distance between vehicles set with the DISTANCE switch.

The light comes on if t here is a m alfun ction in the IC C system.

SKIA5973E

WKIA1977E

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ACTION TEST

[ICC]

ACTION TEST PFP:00000

ICC System Running Test EKS007YE

VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE SET CHEC K ING

1. Press the ON/OFF switch for less than 1.5 seconds.

2. Drive the vehicle between 25 MPH (40 km/h) and 89 MP H (144 km/h).

3. Push the COAST/SET switch.

4. Confirm that the desired speed is set as the COAST/SET switch is released.

NOTE:

● When there is no vehicle ahead, drive at the set speed steadily.

● When there is a vehicle ahead, control to maintain distance from th e vehicle ahead, watching its speed.

● The set vehicle speed is displayed o n the ICC system indicator in the combination meter.

CHECK FO R IN CR EAS E OF THE CR UISI NG S PEE D

1. Set vehicle-to-vehicle distance control mode at desired speed.

2. Check if the set speed increases by 1 MPH (1 km/h) as ACCEL/RES switch is pushed.

NOTE:

The maximum set speed of the vehicle-to-vehicle distance control mode is 89 MPH (144 km/h).

CHECK FOR DECREASE OF THE CRUISING SPEED

1. Set vehicle-to-vehicle distance control mode at desired speed.

2. Check if the set speed decreases by 1 MPH (1 km/h) as COAST/SET switch is pushed.

NOTE:

● Vehicle-to-vehicle distance control m ode is automati cally tur ned off w hen the driving s peed lowers to 20

MPH (32 km/h) due to the deceleration of the vehicle ahead.

● The minimum set speed of the vehicle-to-vehicle distance control mode is 25 MPH (40 km/h).

CHECK FOR THE CA NC ELLATION OF VEHICL E-TO-V EHIC LE DISTANCE CONTR OL MOD E (NORMAL DRIVING CONDITION) IN THE FOLLOWING CASES:

1. When the brake pedal is depressed after the system is turned on.

2. When the A/T select lever is shifted into gears other than “D”, including manual shifts.

3. When the system is turned off.

4. When C ANCEL switch is operated.

CHECK FOR RESTORING THE SPEED THAT IS SET BY VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE BE FORE CANCELLATION

1. Cancel th e system b y depress ing the b rake. T hen, check that th e speed be fore canc ellation is restored when pressing ACCEL/RES switch with vehicle speed at 25 MPH (40 km/h) or above.

2. Cancel the system by shifting the select lever into other than “D”. Then, check if the speed set before the cancellation is restored when ACCEL/RES switch is pressed.

3. Check if the spee d previou sly se t is restored w hen AC CEL/R ES s witch is oper ate d when driving 25 MP H (40 km/h) or a bove, after canceli ng vehicle-to-ve hicle distance control m ode by operating the CANCEL switch.

ACS

CHECK ON/OFF SWITCH OPERATION

1. Start the engine. Then, check that the follow ing operations are performed correctly.

2. Vehicle-to-vehicle distanc e co ntro l mod e is displ ayed whe n O N/ OFF switch is pr essed ON. Vehicle-to-vehicle distance c ontrol mode goes off when ON/OFF switch is turned to OFF.

3. Turn off the ignition switch while ON/OFF switch is ON. Turn the ignition switch back to ON and co nfirm that CRUISE l amp and ICC system display are OFF.

WKIA1978E

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ACTION TEST

CHECK FOR ACCEL/RES, COAST/SET, CANCEL SWITCHES

1. Check if ACCEL/RES, COAST/SET, CANCEL switches operate smoothly.

2. Check if switch buttons rebound as the buttons are released.

CHECK F OR DIS TANCE SWITC H

1. Start the engine.

2. Press the ON/OFF switch for less than 1.5 seconds.

3. Press the DISTANCE switch.

4. Check if the set distance indicator changes disp lay in order of: (long)→(middle)→(short).

NOTE:

The set distance indicator shows long immediately after the engine starts.

[ICC]

CONVENTIONAL (FIXED SPEED) CRUISE CONTRO L MODE SET CHECKING

1. Press the ON/OFF switch for more than 1.5 seconds.

2. Drive the vehicle between 25 MPH (40 km/h) and 89 MPH (144 km/h).

3. Push the COAST/SET switch.

4. Confirm that the desired speed is set when the COAST/SET switch is released.

NOTE:

● ICC system display in the combination meter shows nothing.

SKIA6178E

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ACTION TEST

CHECK FO R IN CR EAS E OF THE CR UISI NG S PEE D

1. Set the conventional (fixed speed) cruise control mode at desired speed.

2. Check if the set speed increases by 1 MPH (1.6 km/h) as ACCEL/RES switch is pushed.

NOTE:

● If the ACCEL/RES switch is held, the vehicle speed increases until the switch is released.

● The maximum set speed is 89 MPH (144 km/h).

[ICC]

CHECK FOR DECREASE OF THE CRUISING SPEED

1. Set the conventional (fixed speed) cruise control mode at desired speed.

2. Check if the set speed decreases by 1 MPH (1.6 km/h) as COAST/SET switch is pushed.

NOTE:

● Conventional (fixed spee d) cruis e contr ol mode is aut omat ically turn ed off whe n the d rivin g speed lower s

to 20 MPH (32 km/h).

● The lowest set speed is 25 MP H (40 km/h).

CHECK FOR THE CANCELLATION OF CONVENTIONAL (FIXED SPEED) CRUISE CONTROL MODE (NORMAL DRIVING CONDITION) IN THE FOLLOWING CASES:

Refer to ACS-9, "CHECK FOR THE CANCELLATION OF VEHICLE-TO-VEHICLE DISTANCE CONTROL

MODE (NORMAL DRIVING CONDITION) IN THE FOLLOWING CASES:"

CHECK FOR RESTORING THE SPEED THAT IS SET BY CONVENTIONAL (FIXED SPEED) CRUISE CONTROL MODE BEFORE ICC CANCELLATION

Refer to ACS-9, "CHECK FOR RESTORING THE SPEED THAT IS SET BY VEHICLE-TO-VEHICLE DIS-

TANCE CONTROL MODE BEFO RE CANCELLATION"

CHECK ON/OFF SWITCH OPERATION

1. Start the engine. Then, check that the follow ing operations are performed correctly.

2. CRUISE lamp (green) illuminates and ICC system indicator goes off when ON/O FF swi tch is pressed O N for mor e than 1. 5 seconds. The CRUISE lamp goes off when ON/OF F switch is turned to OFF.

3. Turn off the ignition switch while ON/OFF switch is ON. Turn the ignition switch back to ON and confirm that CRUISE lamp is OFF.

ACS

WKIA2038E

CHECK FO R AC CEL/ RE S, CO A ST/S E T, CANCEL SWIT CH ES

1. Check if ACCEL/RES, COAST/SET, CANCEL switches operate smoothly.

2. Check if switch buttons rebound as the buttons are released.

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LASER BE AM AIMING ADJUSTMEN T

[ICC]

LASER BEAM AIMING ADJUSTMENT PFP:00026 Outline of Laser Beam Aim ing Adjustment Proced ur e EKS007TI

CAUTION:

● The laser beam aiming adjustment cannot be performed without CONSULT-II.

● The laser beam aiming adjustment must be performed every time the ICC sensor is removed,

installed or has been moved as a result of a co llision.

1. Prepare the vehicle and the work area.

2. Set up the ICC target board.

Tool number : KV99110100 (J-45718)

3. Adjust the sensor follo wing the procedure on CONSULT-II.

4. Check system operation after the adjustment.

Preparation EKS007PC

● Place the vehicle on level ground. Shift the transmission into "P" position and release the parking brake.

● Adjust the tire pressure to the specified va lue.

● See that there is no load in the vehicle. Coolant, engine oil and fuel should be filled to correct level.

● Check th at the vehicle su spension has bee n adjusted to the standard height by the load lev eling rear air

suspension system. Refer to RSU-12, "

● Clean the ICC sensor with a soft cloth.

Basic Inspection" .

WKIA1848E

Setting up the IC C Target Board EKS007PE

CAUTION:

Accuracy in setting up the ICC target board is essential for the laser beam aiming adjustment.

ADJUSTING HEIGHT OF THE ICC TARGET BOARD

1. Attach a triangle scale as shown.

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LASER BEAM AIMING ADJUSTMENT

2. Adjust the height of the ICC target board stand so that the point of the triangle aims above the center of the ICC sensor.

ADJUSTING THE POSITION OF THE ICC TARGET BOARD STRING

1. Attach a scale or straightedge [at least 350 mm (14 in) or longer].

[ICC]

WKIA2039E

SKIA1211E

2. Suspend a string with a weight on the en d 218 mm (8.6 in) to the left side of the ICC target board center.

WKIA2040E

POSITIONING THE ICC TARGET BOARD

1. Suspend a string with w eights on each end ove r the cente rline of the veh icle. The string sho uld lay over the center of the front and back bumpers. Mark these centerpoints on the ground at each weight.

2. Connect the two center points using a string. Extend the str ing an additio nal 5 m (16 ft) beyond the fr ont cent erpoint and mar k the floor. Position the ICC target board weight on this mark.

ACS

WKIA1851E

3. Relocate the sus pended string from the left side of the ICC target board to the center of the ICC target board. Mark this point on the ground.

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LASER BE AM AIMING ADJUSTMEN T

4. Pivot the ICC target board on its center mark 20° to either side.

NOTE:

Approx. 50 mm (1.97 in) shift will produce a 20° movement.

5. Remove any items in the space shown in the figure below.

[ICC]

PKIA2589E

WKIA1858E

NOTE:

In case the backgr ound space shown in the illustrat ion is not availabl e, or if the backgro und is light colored, place a 400 mm (15 .75 in) long frosted black board or black cloth to both sides of the ICC target board.

Sensor Adjustment EKS007PF

CAUTION:

● Complete all necessary steps for laser beam adjustment until the CONSULT-II indicates "COM-

PLETED". If the procedure d oes not complete, the ICC system is inop erable.

● If CONSULT-II is used without connection to the CONSULT-II CONVERTER, malfunctions might be

detected during self-diagnosis.

1. Turn ignition switch OFF.

2. Connect CONSULT-II and CONSULT-II CONVERTER to the data link connector.

BBIA0369E

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LASER BEAM AIMING ADJUSTMENT

3. Start the engine, wait for at least 10 seconds, and touch “ST ART (NISSAN BASED VHCL)”.

4. Touch “ICC”. If “ICC” is not indicated, go to GI-39, "

Connector (DLC) Circuit" .

CONSULT-II Data Link

[ICC]

BCIA0029E

WKIA1749E

5. Touch “WORK SUPPORT”.

6. Touch “LASER BEAM ADJUST”.

7. Touch “START”.

CAUTION:

If the adjustment screen does not appear on CONSULT-II 10 seconds after touching “LASER BEAM ADJUST” screen, the following causes may be considered:

● Target is not set accurately.

● There is not enough space beside the target.

● Deformation of vehicle or inappropriate installation of

sensor. Sensor may be installed out of the adjustable range.

WKIA2041E

SKIA6191E

WKIA2675E

ACS

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LASER BE AM AIMING ADJUSTMEN T

● The area is not suitable for the adjustment work.

● ICC sensor is not clean.

8. After the CONSULT-II displays “ADJUST THE VERTICAL OF LASER BEAM AIMING” turn the vertical adjusting screw until “U/D CORRECT” value is set in the range of ±4.

CAUTION:

Turn the screw slowly. The value on the CONSULT-II is slower than the ac tual m ovement of the ICC sensor. Wait 2 seconds between each adjustment.

NOTE:

Turning the screw clockwise raises the ICC sensor and counterclockwise low ers the ICC sensor.

[ICC]

SKIA1221E

WKIA1869E

9. When “U/D CORRECT” value indicates ±4, confirm that the value remains within ±4 for at least 2 seconds while nothing is touching the ICC sensor. When “COMPLETED THE VERTICAL AIMING OF LASER BEAM” appears on screen, touch “END”.

CAUTION:

Be sure that the margin of “U/D CORRECT” is within ±4 when the ICC sensor unit is untouched.

WKIA2676E

10. Confirm that “ADJUSTING AUTOMATIC HORIZONTAL LASER BEAM AIMING” is on screen and wait while the horizontal adjustment is made automatically. (maximum: 10 seconds).

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LASER BEAM AIMING ADJUSTMENT

[ICC]

11. Confirm that “NOR MALLY COMPLETED” is displa yed on CONSULT-II and close the aimi ng a djustmen t pr ocedu re by tou chin g “END”.

CAUTION:

Complete all th e proced u res once “LAS ER BEA M ADJ UST ” mode is ent ered in CO N SULT-II. When th e pro ced ure is d iscontinued, the ICC system is inoperable.

SKIA1225E

CHECK AFTER THE ADJUSTMENT

Test the ICC syst em by pe rfo rming the I CC Syste m Running Test. Refer to ACS-9, "IC C System Runni ng Test" .

ACS

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ELECTRICAL UNITS LOCATION

[ICC]

ELECTRI CAL UNITS LOCATION PFP:25230 Component Par ts and Harness Connector Location EKS007RP

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WIRING DIAGRAM

[ICC]

WIRING DIAGRAM PFP:00000

Schematic EKS007RG

ACS

WKWA3125E

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WIRING DIAGRAM

[ICC]

Wiring Diagram — ICC — EKS007RH

WKWA1184E

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WIRING DIAGRAM

[ICC]

ACS

WKWA1185E

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WIRING DIAGRAM

[ICC]

WKWA1186E

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WIRING DIAGRAM

[ICC]

ACS

WKWA3126E

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WIRING DIAGRAM

[ICC]

WKWA3127E

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TERMINALS AND REFER E NCE VALUE

[ICC]

TERMIN ALS AND REFERENCE VALUE PFP:00000

Terminals and Reference Values for ICC Unit EKS007RQ

Termina ls

(wire color)

(+) (–)

1 (W/L) 2 (W/L)

5 (R) CAN-L — — —

7 (B/R) N-P RANGE ON A/T selector lever in "P" or "N" Battery voltage

10 (V/R)

14 (W) CAN-H — — —

19 (B) 20 (B) 46 (B)

(BR/W)

30 (L) DDL-TX — — —

33 (R/B) 42 (R/B)

38 (R/G)

39 (V/W) DDL-RX — — —

40 (G) Parking brake signal

47 (BR) Stop lamp drive output signal

Ground

Battery power supply OFF — Battery voltage

Brake booster signal ON —

Ignitio n switch power sup ply ON —

Item

Ground

ICC brake switch

(norm ally closed)

Stop lamp switch

(normally open)

Ignition

switch

OFF

Condition

Operation

——

Selector

lever: Not in

“N” or “P”

position

Depress the brake pedal Release the brake pedal 0

Parking brake is OFF

Brake operating with ICC system

Brake not operating with ICC sys -

Depress th e brake pedal

Release the brake pedal

Parking brake is ON 0

tem

Voltage (V)

(Approx.)

Battery voltage

SKIA1243E

ACS

Terminals and Reference Values for ICC Sensor EKS007RR

Terminals

(wire color)

(+) (–)

1 (R/B)

2 (W) CAN-H — —

3 (R) CAN-L — — 4 (B) Ground — —

Ground

Ignitio n switch power sup ply

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Item

Ignition

switch

ACS-25

Condition

Voltage (V)

Operation

— Battery voltage

Page 37

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

[ICC]

TROUBL E DIAGNOSIS — GENERAL DESCRIPTION PFP:00004 Work Flow EKS007PG

SKIA1227E

● Reference 1··· Refer to ACS-32, "Self-Diagnostic Function" .

● Reference 2··· Refer to ACS-36, "Diagnostic Trouble Code (DTC) Chart" .

● Reference 3··· Refer to ACS-52, "Symptom Chart" .

● Referenc e 4··· Refer to GI -39, "CO NSULT-I I Data Link Connector (DL C) Circuit" and ACS-34, "SELF-

DIAGNOSIS BY ICC SYSTEM DISPLAY WILL NOT RUN" .

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TROUBL E DIAGNOSI S — GENERAL DESCRIPTION

[ICC]

CONSULT- II Function (ICC) EKS007PH

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.

ICC diagnostic mo de Descr iption

Suppo rts inspections and adjustmen ts. Commands are transmitted to the ICC unit for setting the sta-

WORK SUPPORT

SELF-DIAG RESULTS Displays ICC unit self-diagnosis results.

DATA MONITOR Displays ICC unit input/output data in real-time.

CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can be read.

ACTIVE TEST Operation of electrical loads can be checked by sending driving signal to them.

ECU PART NUMBER ICC unit part number can be read.

tus suitable for required operation, input/output signals are received from the ICC unit and received data is displayed.

CONSULT-II OPERATION

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be detected in self-diagnosis depending on control unit which carries out CAN communication.

1. Turn ignition switch OFF.

2. Connect CONSULT-II and CONSULT-II CONVERTER to data link connector.

3. Turn ignition switch ON.

BBIA0369E

4. Touch “START (NISSAN BASED VHCL)”.

ACS

BCIA0029E

5. Touch “ICC” on the "SELECT SYSTEM" screen. If “ICC” is not indicated, go to GI-39, "

CONSULT-II Data Link

Connector (DLC) Circuit" .

WKIA1750E

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TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

6. Touch “WORK SUPPORT”, “SELF-DIAG RESULTS”, “DATA MONITOR”, "CAN DIAG SUPPORT MNTR", “ACTIVE TEST” or “ECU PART NUMBER” on selection screen.

WORK SUPPORT Work Item

Operation Function CAUSE OF AUTO-CANCEL Indicates causes of automatic cancellation of the ICC system. LASER BEAM ADJUST Outputs laser beam, calculates dislocation of the beam, and indicates adjustment direction.

Cause of Auto-Cancel

1. Touch “WORK SUPPORT” on the "SELECT DIAG MODE" screen.

2. Touch “CAUSE OF AUTO-CANCEL” on the "SELECT WORK ITEM screen.

3. Cause of automatic cancellation screen will be shown.

4. The last five causes of automatic cancellation of ICC system will be displayed.

[ICC]

WKIA2041E

Possible Causes of "Auto-Cancel"

Cause of cancellation Description OPERATING WIPER Windshield wipers were operated at HI or LO speed operation. OPERATING ABS ABS function was operated. OPERATING TCS TCS function was operated. OPERATING VDC VDC function was operated. OPE SW VOLT CIRC Voltage outside the standard was detected. LASER SUN BEAM Intense light such as sunlight entered ICC sensor light sensing part. LASER TEMP Temperature around ICC sensor became low. OP SW DOUBLE TOUCH ICC steering switches were pressed at the same time. VDC/TCS OFF SW VDC OFF switch was p ressed. WHEEL SPD UNMATCH Wheel speed became different from AT vehicle speed. TIRE SLIP Wheel slipped. PKB SW ON Parking brake is applied. IGN LOW VOLT Power supply voltage became low. NO RECO RD —

Laser Beam Adjust

For details, refer to ACS-12, "LASER BEAM AIMING ADJUSTMENT" .

SKIA6191E

SELF-DIAGNOSTIC RESULTS

For details, refer to ACS-36, "Diagnostic Trouble Code (DTC) Chart" .

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TROUBL E DIAGNOSI S — GENERAL DESCRIPTION

DATA MONITOR Operation Procedure

1. Touch “DATA MONITOR” on the "SELECT DIAG MODE" screen.

2. Touch “ECU INPUT SIGNALS”, “MAIN SIGNALS“, or “SELECTION FROM MENU” on "SELECT MO NITOR ITEM" screen.

[ICC]

WDIA0084E

Monitored Item

ECU

Monitored Item [unit] MAIN SIGNALS

VHCL SPEED SE [km/h] or [mph]

SET VHCL SP D [km/h] or [mph]

THRTL OPENING [%]

ENGINE RPM [rpm] ××

DISTANCE ADJ [SHOR/MID/LONG]

WIPER SW [OFF/LOW/HIGH]

MAIN SW [ON/OFF]

SET/COAST SW [ON/OFF]

CANCEL SW [ON/OFF]

RESUME/ACC SW [ON/OFF]

CRUISE OPE [ON/OFF]

BRAKE SW [ON/OFF]

STOP LAMP SW [ON/OFF]

RELEASE SW NO [ON/OFF]

RELEASE SW NC [ON/OFF]

IDLE SW [ON/OFF] ××

×××

××

×××

××

×××

INPUT

SIGNALS

××

SELECTION

FROM MENU

×: Applicable

Description

Indicates vehicle speed calculated from wheel speed sensor signal.

Indicates set vehicle speed stored in ICC unit.

Indicates throttle angle calculated from signal voltage of throttle position sensor.

Indicates engine speed read by ICC unit via CAN communication (ECM tran smits en gine sp eed via CAN communic ation).

Indicates set distance stored in ICC unit.

Indicates wiper [OFF/LOW/HIGH] status.

Indicates [ON/OFF] status as judged from control switch signal.

Indicates whether vehicle speed is being controlled or not (ON means “controlling”).

Indicates [ON/OFF] status as judged from ICC brake switch signal.

Indicates [ON/OFF] status as judged from stop lamp switch signal.

Indicates [ON/OFF] status as judged from release switch signal. ON when brake is depressed. OFF when brake is not depressed.

Indicates [ON/OFF] status as judged from release switch signal. OFF when brake is depressed. ON when brake is not depressed.

Indicates [ON/OFF] status of idle switch read by ICC unit via CAN communication (ECM transmits ON/OFF status via CAN communication).

ACS

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TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

[ICC]

ECU

Monitored Item [unit] MAIN SIGNALS

GEAR [1, 2, 3, 4, 5] ××

BUZZER O/P [ON/OFF]

ICC WARNING × VHCL SP D AT

[km/h] or [mph]

PRESS SENS [bar]

PRESS SENS 2 [bar]

D RANGE S W [ON/OFF]

AT OD OFF [ON/OFF]

NP RANGE SW [ON/OFF] ××

DISTANCE ×

RELATIVE SPD × STP LMP DRIVE

[ON/OFF]

×××

××

INPUT

SIGNALS

××

SELECTION

FROM MENU

Indicates AT gear position read by ICC unit via CAN comm un ication (TC M t r an sm its gear p os i tion via CAN communicat i on).

Indicates [ON/OFF] status of ICC warning output.

NOTE:

This item is displayed but cannot be monitored. Indicat e s vehicle s peed calc ulated fr om AT vehicle

speed se nso r by I C C un it via CAN com mu nication (TCM tra nsmit s AT vehi cle sp eed se nso r signal via CAN communicatio n).

Indicates brake fluid pressure value calculated from s ignal voltage o f press ure sensor.

NOTE:

This item is displayed but cannot be monitored. Indicates [ON/OFF] status of “D” position read by

ICC unit via CAN communication (TCM transmits ON/OFF condition of “D” position via CAN communication).

Indicates [ON/OFF] status of OD cancel output under control.

Indicates PNP switch signal read by ICC unit via CAN commu nication. (TC M transmit s P NP swi tc h signal via CAN communication)

NOTE:

This item is displayed but cannot be monitored.

NOTE:

This item is displayed but cannot be monitored. Indicat es [O N/OF F] s tatus of b rake h old rela y dri ve

output.

Description

ACTIVE TEST

CAUTION:

Do not perform the active te st while drivi ng. Ac tive test can not be started while ICC syst em warnin g indicator i s illuminated.

Active Test

1. Touch “ACTIVE TEST” on "SELECT DIAG MODE" screen.

2. Touch any of “ICC BU ZZ ER 1”, “ME TER LAM P”, “STOP LAMP” and “BOOST ER SOL/V 3 ” on "SELECT TEST ITEM" screen.

3. Touch “START”.

4. Active test screen will be shown.

SKIA6195E

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TROUBL E DIAGNOSI S — GENERAL DESCRIPTION

ICC BUZZER 1

● Touch “ON” and “OFF” to check that ICC warning chime oper-

ates as in the following chart.

[ICC]

BUZZER O/P ON OFF Buzzer sound Beep Not activated

METER LAMP

● Start engine.

● Touch “ON” and “OFF” to check that ICC system displays operate as required.

● The following ICC lamps will illuminate at the same time,

CRUISE (orange), CRUISE (green), SET and ICC digital display.

METER LAMP ON OFF All ICC system dis-

plays

Full illumination OFF

STOP LAMP

● Touch “ON” and “OFF” to ch eck tha t the stop lamps o perate as

in the following chart.

STP LMP DRIV E ON OFF Stop lamp Lamp ON Lamp OFF

SKIA1228E

SKIA1231E

ACS

SKIA1232E

BOOSTER SOL/V 3

● Touch any of “MODE 1”, “MODE 2”, “ M ODE 3” to check that fol-

lowing operation condition is caused by oper ating monitor and brake pedal.

● “START” is displayed 10 seconds after operation start. (Active

test is completed.)

SKIA1233E

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TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

[ICC]

PKIA0363J

Self-Diagnostic Function EKS007PI

WITH CONS ULT-II

1. Go to operation check after asking the customer for symptom information. Refer to ACS-9, "ACTION

TEST" .

2. Stop vehicle, tur n ign ition s witch O F F, then connect CONS ULT-II and CO NS ULT-II CONVERTER to data link connector.

3. With engine started, touch “START”, “ICC”, “SELF-DIAG RESULTS” on CONSULT-II screen in this order.

CAUTION:

If “ICC” cannot be sh own after several atte mpts, the ICC unit may be malfu nctioning and sho uld be replaced. Refer to GI-39, "

4. Self-dia gnostic r esult appear s on s creen. If “NO DTC ···” is shown, check ICC warn ing lamp. If any m alfunction is indicated, GO TO step 5.

5. Refer to ACS-36, "

Diagnostic Trouble Code (DTC) Chart" , perform appropriate check, and repair or

replace malfunctioning part as necessary.

6. Turn ignition switch OFF.

7. Start engine and touch “START”, “ICC”, “SELF-DIAG RESULT”, and “ERASE” on CONSULT-II.

CAUTION:

DTC of an existing malfunction will not erase. If the memory does not erase, go to step 5.

8. Perform ICC system running te st (drive vehicle with ICC system ON), and m ake sure that ICC warning lamp does not illuminate.

CONSULT-II Data Link Connector (DLC) Circuit" .

WITHOUT CONSULT-II

1. Go to operation check after asking the customer for symptom information. Refer to ACS-9, "ACTION

TEST" .

2. Stop the vehicle to start the self-diagnosis.

3. Turn ignition switch OFF.

4. Turn ignition switch ON, and wait 5 seconds. Press ACCEL/RES switch 5 times, and then press COAST/SET switc h 5 times all within 5 seconds to start self-diagnosis.

CAUTION:

● Do not start the engine.

● Do not press the ICC ON/OFF switch ON.

● When op eration above is not completed within the 5 to 10

second wind ow, DTC will not be displayed.

● If self-diagnosis mode cannot be started after several

attempts, the ICC unit may be malfunctioning and should be replaced. Refer to ACS-34, "

SELF-DIAGNOSIS BY ICC SYS-

TEM DISPLAY WILL NOT RUN" .

5. When self-diagnosis mode is started, DTCs are shown on set vehicle speed indicator.

WKIA1921E

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ACS-32

Page 44

TROUBL E DIAGNOSI S — GENERAL DESCRIPTION

[ICC]

WKIA1922E

CAUTION:

● DTC will disappear after 5 minutes.

● When multiple malfunctions are detected, a maximum of 3 code numbers can be stored; the lat-

est malfunction will be displayed first.

6. Check ACS-36, "

7. After repair, erase DTC stored in the ICC unit. Refer to ACS-33, "

8. DTC 55 w ill be shown.

9. Turn ignition switch OFF to exit the diagnosis.

10. Perform ICC system running test (drive vehicle with ICC system ON), and make sure that ICC warning lamp does n ot illuminate.

Self-Diagnostic Erasing Method

1. Stop the vehicle and turn the ignition switch OFF.

2. Turn ignition switch ON and start self-diagnosis.

3. During se lf-diagnosis mode, pr ess CANCEL swi tch 5 times, and DISTANCE switch 5 times within a 10 second time period.

CAUTION:

● Switch inputs must be re ceived within a 10 second time period.

● When operation is not completed within 10 seconds start again from step 1.

4. DTC 55 w ill be shown.

CAUTION:

DTC of an existing malfunction will not be erased.

5. Turn ignition switch OFF to exit the diagnosis.

6. Perform ICC system r unning test (drive vehicle with ICC system ON), and make sure that ICC system warning lamp (orange) does not illuminate.

Diagnostic Trouble Code (DTC) Chart" , and repair or replace if necessary.

Self-Diagnost ic Erasing Method"

ACS

Revision: August 2007 2004 QX56

ACS-33

Page 45

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

SELF-DIAGNOSIS BY ICC SYSTEM DISPLAY WILL NOT RUN

Self Diagnosis Will Not Run

Component F ailure Specific causes

ICC unit power supply malfunction No voltage supply from ignition switch Fuse blown

Harn ess open Harness shorted

Ground cable not connected Harness open

Harness shorted

ICC st eering switch m alfun ction No signal transmit ted Harness op en

Harness shorted Spiral cable open Spiral cab le sho r ted Switch or ECM malfunction

CAN communication system malfunction Signal not transmitted Harness open

Harness shorted CAN communication outside the stan-

dard

Combination meter system malfunction Indication not possible Indicator malfunction

Indicator segments disappear

ICC unit malfunction Internal malfunction ICC unit

[ICC]

WKIA1985E

1. CHECK ICC SYSTEM DISPLAY

● When ignition switch is ON, do all displays illuminate?

YES or NO

YES >> GO TO 2. NO >> GO TO 5.

2. CHECK SE LF- DIA GNO SIS

● Disconne ct ECM connectors, and c heck for damaged, bent or loo se terminals. Securely con nect them

again.

● Can self-diagnosis for ICC system be performed?

YES or NO

YES >> Inspection End. NO >> GO TO 3.

Revision: August 2007 2004 QX56

ACS-34

Page 46

TROUBL E DIAGNOSI S — GENERAL DESCRIPTION

[ICC]

3. CHECK ICC STEERING SWITCH

● Check ICC steering switch. Refer to ACS-58, "ICC Steering Switch" .

OK or NG

OK >> GO TO 4. NG >> Replace ICC steering switch. Refer to ACS-59, "

ICC Steering Switch"

4. CHECK HARNESS BETWEEN ECM AND ICC STEERING SWITCH

● Check harness and spiral cable between ECM and ICC steering switch for open or short circuit.

OK or NG

OK >> GO TO 6 NG >> Repair or rep lace harness or sp iral cable between ECM and ICC steering switch.

5. CHECK POWER SUPPLY FOR ICC UNIT

● Check ICC unit power supply, and repair if necessary.

● When ignition switch is ON, do all displays illuminate?

YES or NO

YES >> Perform self-diagnosis again. NO >> GO TO 6.

6. CHECK CO NNECTOR FOR ICC UNIT

● Disconnect ICC unit connectors, and c heck terminals for bend s and looseness. Secu rely connect them

again.

● When ignition switch is ON, do all displays illuminate?

YES or NO

YES >> Perform self-diagnosis again. NO >> GO TO 7.

7. CHECK CAN COMMUNICATION

● Perform self-diagnosis with CONSULT-II, and check CAN communicatio n system for malfunction.

OK or NG

OK >> Replace combination meter. Refer to IP-13, "Combination Meter" NG >> CAN communication inspection. Refer to ACS-38, "DTC 20 CAN COMM CIRCUIT" .

ACS

Revision: August 2007 2004 QX56

ACS-35

Page 47

TROUBLE DIA GNOSIS FOR SELF-DIAG NOSTIC ITEM S

[ICC]

TROUBL E DIAGNOSIS FOR SELF-DIAGNOSTI C ITEMS PFP:00000 Diagnostic Trouble Code (DTC) Chart EKS007X2

×:Applicable

Fail-safe

Vehicle-

to-vehicle dis-

tance

control

DTC

No.

CONSULT-II screen term s

ICC sys-

tem

warning

lamp

mode

11 CONTROL UNIT ××××

12 VDC CONTROL UNIT ××××

20 CAN COMM CIRCU IT ××××

31 POWE R SUPPLY CIR1 ××××

34 POWE R SUPPLY CIR2 ××××

41 VHCL SPEED SE CIRC ××××

43 VDC/TCS/AB S CIRC ××××

45 BRAKE SW/ STOP L SW ××××

46 OPERATION S W CIRC ×××

74 LASER BEAM OFF CNTR ×× ×

90 STOP L A MP RLY FIX ×× ×

92 ECM CIRCUIT ××××

96 NP RANGE ×××

97 AT CIRCUIT ×× ● TCM malfunctio n ACS-48

Conven-

tional (fixed

speed)

cruise

control

mode

Brake assist

(with pre-

view

function)

Refer-

Malfun cti o ns det e cted where.. .

ence page

● ICC unit internal malfunction ACS-37

● VDC malfunction

● Brake booster si gnal har ness is

ACS-37

open o r shorted

● ICC unit detected CAN communi-

cation malfunction

● ICC unit power supply voltage is

excessively low (less than 8V)

● ICC unit power supply voltage is

excessively high.

● Wheel sensor malfunction

● ABS actuator and electric unit

(control unit) malfunction

● AT vehicle speed sensor mal-

ACS-38

ACS-39

function

● TCM malfunction

● VDC/TCS/ABS system malfunc-

tion

● ICC brake switch or stop lamp

ACS-39

switch h ar n ess i s op en or sh orted

● ICC brake switch or stop lamp

switch is stuck to OFF

● ICC brake switch or stop lamp

ACS-40

switch is stuck to ON

● ICC steering switch harness or

spiral cable is open or shorted

● ICC steering switch malfunction

● La ser beam of ICC sensor i s off

the aiming point

● No rmally open ter m inal of stop

lamp relay is stuck

● ECM malfunction

● Accelerato r pedal posi tion senso r

malfunction

● ICC unit malfunction

● Park/neutral position switch har-

ACS-41

ACS-42

ACS-43

ACS-47

ness is open or shorted

● Park/neutral position switch mal-

ACS-48

function

● TCM malfunction

Revision: August 2007 2004 QX56

ACS-36

Page 48

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

[ICC]

Fail-safe

ICC sys-

DTC

102 LAS ER STAIN ×× ×

103 LASER SENSOR FAIL ×× ×● ICC sensor internal malfunction ACS-50 104 LAS ER AIMIN G INCMP ×× ×

107 LASER COMM FAIL ×× ×

109 LASER HIGH TE M P ×× ×

CONSULT-II screen ter ms

No.

98 GEAR POSITION ××

tem

warning

lamp

Vehicle-

to-vehicle dis-

tance

control

mode

Conven-

tional (fixed

speed)

cruise

control

mode

Brake assist

(with pre-

view

function)

Malfunctions detected where...

● TCM malf unction

● AT turbine revolution sensor mal-

function

● AT vehicle speed sensor mal-

function

● ICC sensor body win dow has

contamination

● Laser beam aiming of ICC sensor

is not adjusted

● CAN data received by ICC sen-

sor is strange (from ICC unit, combination meter or ECM)

● Temperature around ICC sensor

is excessively high

Refer-

ence page

ACS-49

ACS-50

ACS-51

DTC 11 CONTROL UNIT EKS007X3

1. DIAGNOST IC CH ECK

1. Are any items other than “DTC 11 CONTROL UNIT” indi cated on self-diagnosis display?

YES or NO

YES >> Repair or replace applicable item. Erase DTC and perform ICC system running test. Then perform

self-diagnosis of ICC system again.

NO >> Replace ICC unit. Refer to ACS-59, "

ICC Unit" . Erase DTC and perform ICC system running

test. Then perform self-diagnosis of ICC system again.

DTC 12 VDC CONTROL UNIT EKS008DH

1. DIAGNOSIS CHE CK

With CONSULT-II

● Perform self-diagnosis of ABS actuator and electric unit (control unit). Is malfunction indicated?

YES or NO

YES >> Repai r or repl ace applicab le item. Erase D TC an d perform ICC syst em runnin g test. T hen per-

form self-diagnosis of ICC system again.

NO >> GO TO 2.

2. CHECK CONNECTOR ICC UNIT AND ABS ACTUATOR AND ELECTRIC UNIT (CONT ROL UNIT)

1. Turn ignition switch OFF.

2. Disconnec t connectors of ICC unit and ABS actua tor and electric unit (control unit), a nd connect them securely again. Then erase DTC. Then, perform self-diagnosis of ICC system again.

OK or NG

OK >> Poor connector connection. Check connector housing for disconnected, loose, bent and col-

lapsed terminals. If any malfunction is dete cted, repair applicable part . After repair, erase DTC and perform ICC system running test. Then perform self-diagn osis of ICC system again.

NG >> GO TO 3.

ACS

Revision: August 2007 2004 QX56

ACS-37

Page 49

TROUBLE DIA GNOSIS FOR SELF-DIAG NOSTIC ITEM S

[ICC]

3. CHECK HARNESS BETWEEN ICC UNIT AND ABS ACTUATOR AND ELECTRIC UNIT (CONTROL

UNIT)

1. Turn ignition switch OFF.

2. Disconne ct connectors of ICC unit and ABS actuator and electric unit (control unit).

3. Chec k continuity between IC C unit harness connec tor B13 terminal 10 (V/R) and ABS actua tor and electric uni t (control unit) connector E125 terminal 7 (V/R).

Continuity should exist.

OK or NG

OK >> Replace ICC uni t. Refer to ACS-59, "ICC Unit" . Erase

DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

NG >>

● Repair harness between ICC unit and ABS actuator and electric unit (control unit).

● After repair, erase DTC and perform ICC system running test. Then, perform self-diagnosis of

ICC system again.

WKIA2042E

DTC 20 CA N COMM CIRCUIT EKS007X4

1. CHECK CA N CO MMU NIC ATION

With CONSULT-II

1. Perform self-diagnosis.

2. Print self-diagn os tic result.

>> After printing self-diagnostic result, go to “CAN system”. Refer to LAN-3, "

Using CONSULT-II" .

Precautions When

DTC 31 POWER SUPPLY CIR 1, DTC 34 POWER SUPPLY CIR 2 EKS007X5

1. CHECK ICC UNIT CONNECTOR

1. Turn ignition switch OFF.

2. Disconnect ICC unit connector and connect it securely again. Then erase DTC. Then perform self-diagnosis of ICC system again.

OK or NG

OK >> GO TO 2. NG >>

● Poor connector connection.

● Check conn ector. (Check connector housing for disconnected, l oose, bent, and col lapsed ter-

minals. If any malfuncti on is detec ted , repair applicabl e part.) After repair, erase DTC, and per form ICC running test. Then perform self-diagnosis of ICC system again.

2. CHECK POWER SUPPLY CIRCUIT FOR ICC UNIT

1. Turn ignition switch ON.

2. Chec k voltage between ICC unit harness connector B17 terminal 33 (R/B), 42 (R/B) and ground.

Battery voltage should exist.

OK or NG

OK >> GO TO 3. NG >>

Revision: August 2007 2004 QX56

● Repair ICC unit power supply harness.

● After repair, erase DTC and per form ICC system run-

ning test. Then, perform self-diagnosis of ICC system again.

ACS-38

SKIA1173E

Page 50

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

[ICC]

3. CHECK GROUND CIRCUIT FOR ICC UNIT

1. Turn ignition switch OFF.

2. Disconnect ICC unit connectors.

3. Check conti nuity between ICC uni t harness connector B13 terminal 19 (B), 20 (B), B17 terminal 46 (B) and ground.

Continuity should exist.

OK or NG

OK >> Replace ICC unit, R efer to ACS-59, "ICC Unit" . Erase

DTC, and perform ICC system running test. Then per-

NG >>

form self-diagnosis of ICC system again.

● Repair ICC unit ground harness.

● After repair, erase DTC and perform ICC system running test. Then perfor m self-diagnosis of

ICC system again.

SKIA6650E

DTC 41 VHC L SP EED SE CIRC EKS007X6

1. PERFORM ICC UNIT SELF-DIAGNOSIS

1. Perform self-diagnosis. Is “DTC 43 VDC/TCS/ABS CIRC” or “DTC 20 CAN COMM CIRCUIT” indicated in self-diagnosis item display?

YES or NO

YES >> Repair or replace applicable item. Erase DTC and perform ICC system running test. Then perform

self-diagnosis of ICC system again.

NO >> GO TO 2.

2. CHECK AT VEHICLE SPEED SENSOR

With CONSULT-II

● With data monitor, check “VHCL SPD AT”.

OK or NG

OK >> Replace ICC unit. Refer to ACS-59, "ICC Unit" . Erase DTC and perform ICC system running

test. Then perform self-diagnosis of ICC system again.

NG >>

● Check TCM.

● After repair, erase DT C and per form IC C syste m running test. Th en, per form self- diagnosis of

ICC system again.

DTC 43 VDC/TCS/ABS CIRC EKS007X7

1. DIAGNOSIS CHE CK 1

With CONSULT-II

● Perform self-diagnosis. Is “CAN COMM CIRCUIT” indicated?

YES or NO

YES >> Repair or replace applicable item. Erase DTC and perform ICC system running test. Then perform

self-diagnosis of ICC system again.

NO >> GO TO 2.

2. DIAGNOSIS CHE CK 2

With CONSULT-II

● Perform self-diagnosis of ABS actuator and electric unit (control unit). Is malfunction indicated?

YES or NO

YES >> Repair or replace applicable item. Erase DTC and perform ICC system running test. Then perform

self-diagnosis of ICC system again.

NO >> Replace ICC unit. Refer to ACS-59, "

test. Then perform self-diagnosis of ICC system again.

ICC Unit" . Erase DTC and perform ICC system running

ACS

Revision: August 2007 2004 QX56

ACS-39

Page 51

TROUBLE DIA GNOSIS FOR SELF-DIAG NOSTIC ITEM S

[ICC]

DTC 45 BRAK E SW / STOP L SW EKS007X8

1. CHECK CONNECTORS FOR ICC UNIT

1. Turn ignition switch OFF.

2. Disconne ct ICC unit conn ec tors, and con nec t them s ecur ely again. T he n eras e DTC . T hen, p erform sel fdiagnosis of ICC system again.

OK or NG

OK >> ● Poor connector connection.

● Check connectors. (Check connectors housing for disconnected, loose, bent, and collapsed

terminals. If any mal function is detected, repair applicabl e part.) After repair, erase DTC, and perform ICC system running test. Then perform self-diagnosis of ICC system again.

NG >> GO TO 2.

2. CHECK STOP LAMP SWITCH AND ICC BRAKE SWITCH

With CONSULT-II

● With data monitor, check if “STOP LAMP SW” and “BRAKE SW” are operating normally.

OK or NG

OK >> Replace ICC uni t. Refer to ACS-59, "ICC Unit" . Erase DTC and perform IC C system running

test. Then perform self-diagnosis of IC C system again.

NG >>

● BRAKE SW: GO TO 3.

● STOP LAMP SW: GO TO 5.

3. ICC BRAKE SWITCH INSTALLATION AND ADJUSTMENT INSPECTION

● Check ICC brake switch for proper installa tion and adjust if necessary. Refer to BR-6, "BRAKE PEDAL" .

OK or NG

OK >> GO TO 4. NG >> After adju stment, erase DTC and pe rform ICC syst em running test. The n perform self-diagn osis

of ICC system again.

4. CHECK ICC BRAKE SWITCH

● Check ICC brake switch. Refer to ACS-58, "ICC Brake Switch and Stop Lamp Switch" .

OK or NG

OK >> Replace ICC uni t. Refer to ACS-59, "ICC Unit" . Erase DTC and perform ICC syste m running

test. Then perform self-diagnosis of IC C system again.

NG >> Replace IC C bra ke switch. E rase DTC and perf orm ICC system r unning test. T hen perf orm self-

diagnosis of ICC system again.

5. CHECK STOP LAMP ILLUMINATION

● Check stop lamp illumination.

OK or NG

OK >> GO TO 6. NG >>

● Check stop lamp circuit.

● After repair, erase DTC and perform ICC system running test. Then, perform self-diagnosis of

ICC system again.

Revision: August 2007 2004 QX56

ACS-40

Page 52

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

[ICC]

6. CHECK ICC BRAKE HOLD RELAY

1. Turn ignition switch OFF.

2. Remove ICC brake hold relay.

3. Check continuity between terminals of ICC brake hold relay.

7 - 6 Continuity should not exist. 4 - 3 Continuity should exist.

OK or NG

OK >> GO TO 7. NG >> Replace ICC br ake hold relay. Erase DTC and perform

ICC system running test. Then perform self-diagnosis of ICC system again.

7. CHECK ICC BRAKE HOLD RELAY CIRCUIT

1. Disconnect connectors of ICC unit and stop lamp switch.

2. Check conti nuity between ICC uni t harness connector B17 terminal 38 (R/G) and ICC brake hold relay harness connector E134 terminal 7 (R/G).

Continuity should exist.

3. Check conti nuity between ICC uni t harness connector B17 terminal 38 (R/G) and stop lamp switch harness connector E38 terminal 4 (R/G).

SKIA6651E

Continuity should exist.

OK or NG

OK >> Replace ICC unit. R efer to ACS-59, "ICC Unit" . Erase

DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

NG >>

● Repair harness between ICC unit and ICC brake hold relay or stop lamp switch.

● After repair, erase DT C and per form IC C syste m running test. Th en, per form self- diagnosis of

ICC system again.

WKIA3403E

DTC 46 OPERATION SW CIRC EKS007X9

1. CHECK ECM CONNECTOR

1. Turn ignition switch OFF.

2. Disconnect ECM connector , and connect it securely again. Then erase DTC. Then, perform self-diagnosis of ICC system again.

OK or NG

OK >> ● Poor connector connection.

● Check con nector. (Check connector hous ing for disconnected , loose, bent, and collapsed ter-

minals. If any malfun ction is detecte d, repair applicab le part.) After repair, erase DTC, and perform ICC system running test. Then perform self-diagnosis of ICC system again.

NG >> GO TO 2.

2. CHECK ICC STEERING SWITCH

● Check ICC steering switch. Refer to ACS-58, "ICC Steering Switch" .

OK or NG

OK >> GO TO 3. NG >> Replace ICC steering swi tch assembly. Refer to ACS-59, "

perform ICC system running test. Then perform self-diagnosis of ICC system again.

ICC Steering Switch" . Erase DTC and

ACS

Revision: August 2007 2004 QX56

ACS-41

Page 53

TROUBLE DIA GNOSIS FOR SELF-DIAG NOSTIC ITEM S

3. CHECK ICC STEERING SWITCH SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconne ct connec to rs of ECM and spiral cable.

3. Check continuity between ECM harness connectors E16 and F54 terminals 67 (B ), 99 (G/Y) and s pira l cable M 30 ter minal 33 (B), 34 (G/Y).

67 - 33, 99 - 34 Continu ity should exist.

OK or NG

OK >> GO TO 4. NG >>

● Repair harness between ECM and spiral cable.

● Erase DTC and perform ICC syste m running te st. Then, pe rform self-di agnosis of IC C system

again.

4. CHECK ICC STEERING SWITCH SIGNAL CIRCUIT

[ICC]

WKIA1928E

1. Disconne ct rem aining spira l cable connec tor.

2. Chec k continuity between sp iral cable ( to vehicle) h arness co nnector M30 termi nal 33, 34 and spiral cable (to sw itch) h arness connector M102 terminal 14,15.

34 - 14, 33 - 15 Continu ity should exist.

OK or NG

OK >> Replace ECM. Erase DTC and perform ICC system run-

ning test. Then perform self-diagnosis of ICC system again.

NG >>

● Replace spiral cable. Refer to SRS-47, "Removal

and Installation" .

● Erase DTC and perform ICC system running test.

Then, perform self-diagnosis of ICC system again.

SKIA5979E

DTC 74 LASER BEAM OFF CENTER EKS007XE

1. DIAGNOSTIC CHECK

1. Adjust laser beam aiming. Then erase DTC, and perform ICC system running test. Refer to AC S- 12,

"LASER BEAM AIMING ADJUSTMENT" .

2. After that, perform self-diagnosis of ICC system. Is DTC 74 LASER BEAM OFF CNTR indicated?

YES or NO

YES >> ● Replace ICC sensor and adjust laser beam aiming. Refer to ACS-59, "ICC Sensor" .

● After that, erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC

system again.

NO >> Inspec tion end.

Revision: August 2007 2004 QX56

ACS-42

Page 54

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

[ICC]

DTC 90 ST OP LAMP RLY FIX EKS007XF

1. CHECK ICC UNIT CONNECTOR

1. Turn ignition switch OFF.

2. Disconnect and check ICC unit connector. OK or NG

OK >> GO TO 2. NG >>

● Connector malfunction.

● After repair, erase DTC, and per form I CC syste m runnin g test. T hen perfor m self-di agnosis of

system.

2. CHECK STO P LAMP SWITCH AND ICC BRAKE SWITCH

With CONSULT-II

1. Connect ICC unit connector and turn ignition switch ON.

2. With data monitor, check that “STOP LAMP SW” and “BRAKE SW” operate normally. OK or NG

OK >> GO TO 11. NG >>

● BRAKE SW: GO TO 3.

● STOP LAMP SW: GO TO 8.

3. CHECK AND ADJUST ICC BRAKE SWITCH

● Check ICC brake switch for proper installation and adjust if necessary. Refer to BR-6, "BRAKE PEDAL" .

OK or NG

OK >> GO TO 4. NG >> After adjustment, erase DTC and perform ICC system running test. Then perform self-diagnosis

of ICC system again.

4. CHECK ICC BRAKE SWITCH

● Check ICC brake switch. Refer to ACS-58, "ICC Brake Switch and Stop Lamp Switch" .

OK or NG

OK >> GO TO 5. NG >> Replace ICC brake switch. Erase DTC and perform ICC system running test. Then perform self-

diagnosis of ICC system again.

ACS

5. CHECK ICC BRAKE HOLD RELAY

● Disconnect IC C brake h old rela y, and check continuity bet ween

ICC brake hold relay terminal 4 and terminal 3.

Continuity should exist.

OK or NG

OK >> GO TO 6. NG >> Replace ICC br ake hold relay. Erase DTC and perform

ICC system running test. Then perform self-diagnosis of ICC system again.

SKIA6658E

Revision: August 2007 2004 QX56

ACS-43

Page 55

TROUBLE DIA GNOSIS FOR SELF-DIAG NOSTIC ITEM S

6. CHECK HARNESS THROUGH ICC BRAKE HOLD RELAY, ICC BRAKE SWITCH, ICC UNIT

1. Disconnect ICC brak e hold relay, ECM and ICC unit harness connectors.

2. Check continuity between ICC brake hold relay harness connector E134 termina l 4 (L) and IC C un it ha rnes s connec tor B 17 terminal 29 (BR/W).

Continuity should exist.

3. Chec k continuity between IC C unit harness connec tor B17 terminal 29 (BR/W) and ground.

Continuity should not exist.

OK or NG

OK >> GO TO 7. NG >>

● Repair harness between ICC brake hold relay and

ICC brake switch.

● Repair harness between ICC brake switch and ICC unit.

● After repair, erase DTC and perform ICC system running test. Then, perform self-diagnosis of

ICC system again.

[ICC]

WKIA1929E

7. CHECK ICC BRAKE HOLD RELAY POWER SUPPLY CIRCUIT

1. Turn ignition switch ON.

2. Check voltage between ICC brake hold relay harness connector E134 terminal 3 (R/B) and ground.

Battery voltage should exist.

OK or NG

OK >> Replace ICC uni t. Refer to ACS-59, "ICC Unit" . Erase

DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

NG >>

● Check fuse or ICC brake hold relay power supply sys-

tem harness.

● After repair, erase DTC and perform ICC system running test. Then, perform self-diagnosis of

ICC system again.

WKIA1930E

8. CHECK STOP LAMP SWITCH

1. Turn ignition switch OFF.

2. Check stop lamp switch. Refer to ACS-58, "

OK or NG

OK >> GO TO 9. NG >> Replace stop lamp switch. Erase DTC and perform ICC system running test. Then, perform self-

diagnosis of ICC system again.

ICC Brake Switch and Stop Lamp Switch" .

9. CHECK ICC BRAKE HOLD RELAY CIRCUIT

1. Disconnect stop lamp switch connector.

2. When brake pedal is n ot depressed, make sure that stop lamp does not illuminate.

OK or NG

OK >> Replace ICC uni t. Refer to ACS-59, "ICC Unit" . Erase DTC and perform IC C system running

test. Then perform self-diagnosis of IC C system again.

NG >> GO TO 10.

Revision: August 2007 2004 QX56

ACS-44

Page 56

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

[ICC]

10. CHECK ICC BRAKE HOLD RELAY

1. Disconnect ICC brake hold relay.

2. Check conti nu ity between ICC br ake h ol d rel ay E13 4 te rmina l 7 and terminal 6.

Contin uity shou ld no t e xis t .

OK or NG

OK >> Replace ICC unit. R efer to ACS-59, "ICC Unit" . Erase

DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

NG >> Replace ICC br ake hold relay. Erase DTC and perform

ICC system running test. Then perform self-diagnosis of ICC system again.

11. CHECK HARNESS THROUGH ICC UNIT, ICC BRAKE HOLD RELAY, AND GROUND

1. Disconnec t ICC unit and I CC brak e hold r elay ha rness connec tors.

2. Check conti nuity between ICC uni t harness connector B17 terminal 47 (BR) and ICC brake hold relay harness connector E134 terminal 1 (BR).

47 - 1 Continuity should exist.

3. Check conti nuity between ICC uni t harness connector B17 terminal 47 (BR) and ground.

SKIA6659E

47 - Ground Continuity should not exist.

4. Check continuity between ICC brake hold relay harness connector E134 terminal 2 (B) and ground.

Continuity should exist.

OK or NG

OK >> GO TO 12. NG >>

● Repair harness through ICC un it and ICC brake hold

relay, or between ICC brake hold relay and ground.

● After repair, erase DTC and perform ICC sys tem run-

ning test. Then, p erfo rm se lf-diagn os is of ICC sys tem again.

12. CHECK ICC BRAKE HOLD RELAY

● Check con tinuity between I CC brake hold relay terminal 1 and

terminal 2.

Continuity should exist. (minimal resistance through coil will exist)

OK or NG

OK >> GO TO 13. NG >> Replace ICC br ake hold relay. Erase DTC and perform

ICC system running test. Then perform self-diagnosis of ICC system again.

SKIA6660E

SKIA6661E

SKIA6662E

ACS

Revision: August 2007 2004 QX56

ACS-45

Page 57

TROUBLE DIA GNOSIS FOR SELF-DIAG NOSTIC ITEM S

13. CHECK ICC UNIT STANDARD VOLTAGE

With CONSULT-II

1. Connect connectors of ICC unit and stop lamp switch.

2. While performing active test (STOP LAMP: STP LMP DRIVE ON) with CO NSU LT-II, check voltage bet wee n ICC unit h arn ess connector B17 terminal 47 (BR) and ground.

47 - Groun d Batt ery v olt age s houl d exi st

(during active test) .

OK or NG

OK >> GO TO 14. NG >> Replace IC C unit. Refer to ACS-59, "

DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

ICC Unit" . Erase

14. CHECK ICC BRAKE HOLD RELAY POWER SUPPLY CIRCUIT

1. Check voltage between ICC brake hold relay harness connector E134 terminal 6 (R/Y) and ground.

6 - Ground Battery voltage should exist.

[ICC]

SKIA3075E

OK or NG

OK >> GO TO 15. NG >>

● Check fuse or ICC brake hold relay power supply har-

ness.

● After repair, erase DTC and per form ICC system run-

ning test. Then, perform self-diagnosis of ICC system again.

15. CHECK HARNESS BETWEEN ICC BRAKE HOLD RELAY AND ICC UNIT

1. Turn ignition switch OFF.

2. Disconne ct ICC brake hold relay and ICC unit harness connectors.

3. Check continuity between ICC brake hold relay harness connector E134 te rminal 7 (R/G) and ICC unit harness connector B17 terminal 38 (R/G).

7 - 38 Continuity should exist.

4. Chec k continuity between IC C unit harness connec tor B17 terminal 38 (R/G) and ground.

38 - Ground Continuity should not exist.

OK or NG

OK >> GO TO 16. NG >>

● Repair harness betw een ICC brake hold relay and ICC unit or between ICC brake hold relay

and stop lamp switch.

● After repair, erase DTC and perform ICC system running test. Then, perform self-diagnosis of

ICC system again.

WKIA1931E

WKIA1932E

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TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

[ICC]

16. CHECK ICC BRAKE HOLD RELAY

With CONS ULT-II

1. Connect ICC unit and ICC brake hold relay harness connectors.

2. Disconnect stop lamp switch connector.

3. Perform active test (STOP LAMP) with CONSULT-II, and make sure that stop lamps are illuminated. OK or NG

OK >> GO TO 17. NG >> Replace ICC brake hold relay. Erase DTC and perform ICC system running test. Then perform

self-diagnosis of ICC system again.

17. CHECK ICC UNIT STANDARD VOLTAGE

With CONSULT-II

1. Connect stop lamp switch connector.

2. While performing active test (STOP LAMP: STP LMP DRIVE ON) with CO N SULT-II, check voltage b etwe en IC C u ni t harnes s connector B17 terminal 29 (BR/W) and ground.

29 - Ground Approx. 0V (during active test)

OK or NG

OK >> Replace ICC unit. R efer to ACS-59, "ICC Unit" . Erase

DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

NG >> Replace s top lam p sw itch. Erase DTC a nd per form ICC

system running test. Then perform s elf-diagnosis of ICC system again.

SKIA1200E

DTC 92 ECM CI RCUIT EKS007XG

1. DIAGNOSIS CHE CK 1

With CONSULT-II

● Perform self-diagnosis with CONSULT-II. Is “CAN COMM CIRCUIT” i ndicated?

YES or NO

YES >> Repair or replace applicable item. Erase DTC and perform ICC system running test. Then perform

self-diagnosis of ICC system again.

NO >> GO TO 2.

2. DIAGNOSIS CHE CK 2

With CONSULT-II

● Perform ECM self-diagnosis with CONSULT-II. Is malfunction indicated?

YES or NO

YES >> Repair or replace applicable item. Erase DTC and perform ICC system running test. Then perform

self-diagnosis of ICC system again.

NO >> Replace ICC unit. Refer to ACS-59, "

test. Then perform self-diagnosis of ICC system again.

ICC Unit" . Erase DTC and perform ICC system running

ACS

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ACS-47

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TROUBLE DIA GNOSIS FOR SELF-DIAG NOSTIC ITEM S

[ICC]

DTC 96 NP RANGE EKS007XH

1. CHECK ICC UNIT CONNECTORS

1. Turn ignition switch OFF.

2. Disconne ct ICC unit harness c onnectors and connect th em secur ely again. Then erase DT C. Then , perform self-diagnosis of ICC system again.

OK or NG

OK >> GO TO 2. NG >>

● Poor connector connection.

● Check conn ector. (Check connector housing for disconnected, l oose, bent, and col lapsed ter-

minals. If any malfuncti on is detec ted , repair applicabl e part.) After repair, erase DTC, and per form ICC system running test. Then perform self-diagnosis of ICC system again.

2. CHECK NP RANGE SWITCH SIGNAL

With CONSULT-II

● With data monitor, check that “NP RANGE SW” operates normally.

OK or NG

OK >> Perform TCM diagnosi s. Refer to AT-93, "SELF-DIAGNOSTIC RESULT MODE" . NG >> GO TO 3.

3. CHECK HARNESS BETWEEN ICC UNIT AND TCM

1. Turn ignition switch OFF.

2. Disconne ct IC C u nit harn ess con nector s and A /T as semb ly harness connector.

3. Chec k continuity between IC C unit harness connec tor B13 terminal 7 (B/R) a nd A/T assem bly harn ess conne ctor F9 term inal 9 (B/R).

7 - 9 Continuity should exist.

OK or NG

OK >> Replace ICC uni t. Refer to ACS-59, "ICC Unit" . Erase

DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

NG >>

● Repair harness between ICC unit and TCM.

● After repair, erase DTC and perform ICC system running test. Then, perform self-diagnosis of

ICC system again.

SKIA5982E

DTC 97 AT CIRCUIT EKS007XI

1. CHECK AT CIRCUIT

With CONSULT-II

● With TCM diagnos is, check t hat shift operates n ormally. Refer to AT-109, "DTC P0705 PARK/NEUTRAL

POSITION SWITCH" .

OK or NG

OK >> Replace ICC unit. R efer to ACS-59, "ICC Unit " . Erase DTC and perfo rm self-diagnos is of ICC

system again.

NG >>

● Perform TCM diagnosis.

● After repair, erase DTC and perform self-diagnosis of ICC system again.

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TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

[ICC]

DTC 98 GEAR POSITION EKS007XJ

1. DIAGNOST IC CH ECK

With CONSULT-II

● Is “DTC 43 VDC/TCS/ABS CIRC” or “DTC 41 VHCL SPEED SE CIRC” indicated in self-diagnosis di splay

item?

YES or NO

YES >> Repair or replace applicable item. Erase DTC and perform self-diagnosis of ICC system again. NO >> GO TO 2.

2. CHECK VEHICLE SPEED SIGNAL

With CONSULT-II

● With data monitor, check that “VHCL SPEED SE” is normal.

OK or NG

OK >> GO TO 3. NG >> Replace ICC unit. Refer to ACS-59, "

system again.

ICC Unit" . Erase DTC and perfor m self-diagno sis of ICC

3. CHECK SHIFT GEAR POSITION

● Check that gear positions are correct in A/T.

OK or NG

OK >> GO TO 5. NG >> GO TO 4.

4. CHECK TCM GEAR POSITION SIGNAL

With CONSULT-II

● With TCM data monitor with CONSULT-II, check that gear positions are correct.

OK or NG

OK >> Replace ICC unit. Ref er to ACS-59, "ICC Unit" . Erase DTC and perfor m self-diagno sis of ICC

system again.

NG >>

● Perform TCM diagnosis.

● After repair, erase DTC and perform self-diagnosis of ICC system again.

5. CHECK TCM TURBINE ROTATION

ACS

With CONSULT-II

● With TCM diagnosis, check that turbine rpm is normal. Refer to A T - 134, "DTC P1716 TURBINE REVOLU-

TION SENSOR" .

OK or NG

OK >> Replace ICC unit. Re fer to ACS-59, "ICC Unit" . Er ase DT C an d perform self- diagnosis o f ICC

system again.

NG >>

● Perform TCM diagnosis.

● After repair, erase DTC and perform self-diagnosis of ICC system again.

DTC 102 LASER STAIN EKS007XK

1. VISUAL INSPECTION (1)

● Check that there is no contamination and foreign material on ICC sensor body window.

OK or NG

OK >> GO TO 2. NG >>

Revision: August 2007 2004 QX56

● Clean ICC sensor.

● Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system

again.

ACS-49

Page 61

TROUBLE DIA GNOSIS FOR SELF-DIAG NOSTIC ITEM S

[ICC]

2. VISUAL INSPECTION (2)

● Check ICC sensor body window for cracks.

OK or NG

OK >> GO TO 3. NG >>

● Replace ICC sensor and adjust laser beam. Refer to ACS-12, "LASER BEAM AIMING

ADJUSTMENT" .

● After that, erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC

system again.

3. ASK CUSTOMER FOR DRIVING CONDITIONS

1. Is there any trace of contamination or foreign material on ICC sensor?

2. Is there any possibility that vehicle was driven in snow or ICC sensor was frosted?

3. Is there any possibility that ICC sensor was fogged temporarily? (Front window glass may have also been fogged.)

Yes or No

Yes >> Explain system operation and parameters to customer. System may be operating normally. No >>

● Replace ICC sensor and adjust laser beam aiming. Refer to ACS-59, "ICC Sensor" .

● After that, erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC

system again.

DTC 103 LASER SEN SOR FAIL EKS007XL

1. DIAGNOSTIC CHECK

● Are “DTC 11 CONTROL UNIT” or “DTC 20 CAN COMM CIRCUIT” item indicated in self-diagnosis display

item?

YES or NO

YES >> GO TO APPLICABLE ITEM INSPECTION. Refer to ACS-37, "DTC 11 CONTROL UNIT" , and

DTC 20 CAN COMM CIRCUIT" .

NO >>

ACS-38, "

● Replace ICC sensor and adjust laser beam aiming. Refer to ACS-59, "ICC Sensor" .

● After that, erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC

system again.

DTC 104 LASER AIMING INCMP EKS007XM

1. DIAGNOSTIC CHECK

1. Adjust la ser beam aiming. Re fer to ACS-12, " perform ICC system running test.

2. After that, perform self-diagnosis of ICC system. Is “DTC 104 LASER AIMING INC M P” indicated?

CAUTION:

Ensure that laser beam aiming apparatus is set up accurately.

YES or NO

YES >> ● Replace ICC sensor and adjust laser beam aiming. Refer to ACS-59, "ICC Sensor" .

● After that, erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC

system again.

NO >> Inspec tion end.

LASER BEAM AIMING ADJUSTMENT" . Erase DTC and

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TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

[ICC]

DTC 107 LAS ER COMM FAIL EKS007XN

1. DIAGNOST IC CH ECK

● Is “DTC 11 CONTROL UNIT” or “DTC 2 0 CAN CO MM CIRC UIT” indicated in the sel f-diagnosis dis play

item?

YES or NO

YES >> G O TO applicable item inspec tion. Refer to A CS-37, "DTC 11 CONTROL UNIT " , and ACS-38,

"DTC 20 CAN COMM CIRCUIT" .

NO >>

● Replace ICC sensor and adjust laser beam aiming. Refer to ACS-59, "ICC Sensor" .

● After that, erase DTC and perf orm ICC syste m running test. Then perf orm sel f-dia gnosis of ICC

system again.

DTC 109 LAS ER HIGH TE MP EKS007XO

1. CHECK SYMPTOM

● Is cooling system malfunctioning?

YES or NO

YES >> ● Repair cooling system.

● After that, erase DTC and perf orm ICC syste m running test. Then perf orm sel f-dia gnosis of ICC

system again.

NO >>

● Replace ICC sensor and adjust laser beam aiming. Refer to ACS-59, "ICC Sensor" .

● After repair, erase DTC. Then p erform IC C sys tem runni ng test, and per form self- diagnosis of

ICC unit.

ACS

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TROUBLE DIAGNOSIS FOR SYMPTOMS

[ICC]

TROUBL E DIAGNOSI S FOR SYMPTOMS PFP:00007 Symptom Chart EKS007XR

Sympto ms Reference p age

ON/OFF switch does not switch ON.

ON/OFF switch does not switch OFF.

Cruise does not function for setting (powering functions).

CANCEL switch does not function.

Operation

RESUME does not function.

The set speed does not increase.

The set distance to the vehicle ahead cannot be changed.

The ICC is not cancelled when the gear is in other than D.

The ICC system display does not appear.

Display/Chime

Chime does not fun ct io n.

Control Driving force is hunting.

The system frequently cannot detect the vehicle ahead.

The distance to detect the vehicle ahead is short.

The system misidentifies a vehicle even though there is no

Function to detect the vehicle ahead

vehicle ahead.

The system misidentifies a vehicle in the next lane.

The system does not detect a vehi cle at all.

Refer to DI-17, "

ceed Wi th T ro ub le Di agn osis"

● Refer to ACS-12, "LASER

● Refer to ACS-9, "ICC Sys-

● Refer to ACS-12, "LASER

● Refer to ACS-9, "ICC Sys-

Symptom 1

ACS-53

Symptom 1

ACS-53

Symptom 2

ACS-53

Symptom 3

ACS-54

Symptom 3

ACS-54

Symptom 3

ACS-54

Symptom 3

ACS-54

Symptom 4

ACS-55

Check combination meter.

How to Pro-

Symptom 5

ACS-55

Symptom 6

ACS-56

Symptom 7

ACS-56

Symptom 7

ACS-56

BEAM AIMING ADJUSTMENT"

tem Running Test"

BEAM AIMING ADJUSTMENT"

tem Running Test"

Symptom 8

ACS-56

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ACS-52

Page 64

TROUBL E DIAGNOSIS FOR SYMPTOMS

[ICC]

Symptom 1: ON/OFF Switch Does Not Switch ON*1 , ON/OFF Switch Does Not Switch OFF

NOTE:

● *1: The ICC system display in the combination meter does not illuminate.

● *2: The ICC system display in the combination meter remains powered.

EKS007XS

1. CHECK ON/OFF SWITCH

With CONSULT-II

● With data monitor, check that ON/OFF switch operates normally.

OK or NG

OK >> GO TO 2. NG >> GO TO 3.

2. CHECK ICC UNIT CONNECTOR

1. Turn ignition switch OFF.

2. Disconnect ICC unit harness connectors.

3. Check connector housing for disconnected, loose, bent, and collapsed terminals. OK or NG

OK >> GO TO 3. NG >>

● Poor conn ector connection.

● Repair ICC unit connector. After repair, erase DTC and perform ICC system running test. Then

perform self-diagnosis of ICC system again.

3. DIAGNOSIS CHE CK

With CONSULT-II

● Perform self-diagnosis with CONSULT-II. Is “CAN COMM CIRCUIT” indicated?

YES or NO

YES >> Refer to ACS-38, "DTC 20 CAN COMM C IRCUIT" . NO >> Refer to ACS-41, "

DTC 46 OPERATION SW CIRC" .

Symptom 2: The ICC System Cannot Be Set (ON/OFF Switch Turns On/Off) EKS007XT

The ICC cannot be set in the following cases.

● When the v ehicle speed is not in range of approx. 25 MPH (40 km/h) to 89 MPH (144 km/h).

● When the A/T selector lever is in gears other than "D".

● While the brake is in operation.

● When the wi ndshield wipers are operating .

1. CHECK CAUSE OF AUTOMATIC CANCELLATION

With CONS ULT-II

1. With “CAUSE OF AUTO-CANCEL” in work support, check if any cause of cancellation exists. OK or NG

OK >> ● Cancel with appropriate cause.

● For causes A, B, or C, go to specified diagnosis.

A: “OPE SW VOLT CIRC” : Refer to ACS-41, " B: “VHCL SPD UNMATCH” : Refer to ACS-39, " C: “IGN LOW VOLT” : Refer to ACS-38, "

POWER SUPPLY CIR 2" .

NG >> GO TO 2.

DTC 46 OP ERATION SW CIRC" .

DTC 41 VHCL SPEED SE CIRC" .

DTC 31 POWER SUPPLY CIR 1, DTC 34

ACS

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TROUBLE DIAGNOSIS FOR SYMPTOMS

[ICC]

2. PERFORM SELF-DIA GNOSIS

With CONSULT-II

1. Perform CONSULT-II self-diagnosis to check for malfunctioning items.

OK or NG

OK >> GO TO 3. NG >> After repairing o r replacing malfunctioning pa rt, erase DTC. Perform ICC system running test, and

then perform self-diagnosis of ICC system again.

3. CHECK SWITCHES AND VEHICLE SPEED SIGNAL

With CONSULT-II

1. With data monitor, check that the following switches and vehicle speed signal operate normally. A: VHCL SPEED SE B: D RANGE SW C: BRAKE SW D: SET/COAST SW

OK or NG

OK >> Replace ICC unit and erase DTC. Refer to ACS-59, "ICC Unit" . Perform ICC system running

test, and then perform self-diagnosis of ICC system again.

NG >>

● A: Refer to ACS-39, "DTC 41 VHCL SPEED SE CIRC" .

● B: Refer to ACS-55, "Symptom 4: The ICC System Is Not Cancelled When the Gear Is in Other

Than ‘D’" .

● C: Refer to ACS-40, "DTC 45 BRAKE SW/STOP L SW" .

● D: Refer to ACS-41, "DTC 46 OPERATION SW CIRC" .

Symptom 3: The ICC System Cannot Be Operat ed by t he CA NCEL Switch, ACCEL/RES Switch, or DISTANCE Switch

RESUME will not function in the following cases:

● When O N/OFF switch is pressed once after the ICC system was ON.

● When the vehicle speed is less than 20 MPH (32 km/h).

EKS007XU

1. CHECK SW ITCH

With CONSULT-II

1. With data monitor, check that the following switches operate normally. “RESUME/ACC SW”, “CANCEL SW”, “DISTANCE ADJ”.

OK or NG

OK >> Replace ICC unit and erase DTC. Refer to ACS-59, "ICC Unit" . Perform ICC system running

test, and then perform self-diagnosis of ICC system again.

NG >> GO TO 2.

2. CHECK DIA G NOSIS

With CONSULT-II

● Perform self-diagnosis with CONSULT-II. Is “CAN COMM CIRCUIT” indicated?

YES or NO

YES >> Refer to ACS-38, "DTC 20 CAN COMM CIRCUIT" . NO >> Refer to ACS-41, "

DTC 46 OPERATION SW CIRC" .

Revision: August 2007 2004 QX56

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TROUBL E DIAGNOSIS FOR SYMPTOMS

[ICC]

Symptom 4: The ICC System Is Not Cancelled When the Gear Is in Other Than ‘D’

EKS007XV

1. CHECK D RANGE SWITCH

With CONS ULT-II

1. With data monitor, check that “D RANGE SW” operates normally. OK or NG

OK >> Replace ICC un it and erase DT C. Refer to ACS-59, "ICC Unit" . Perform ICC system running

test, and then perform self-diagnosis of ICC system again.

NG >> GO TO 2.

2. CHECK CAN COMMUNICATION

With CONS ULT-II

1. With CONSULT-II self-diagnosis, check “CAN COMM CIRCUIT”. OK or NG

OK >> GO TO 3. NG >> Refer to ACS-38, "

DTC 20 CAN COMM CIRCUIT" .

3. CHECK D RANGE SWITCH

1. With TCM data monitor, check that “D” position switch operates normally. OK or NG

OK >> Replace ICC uni t. R efer to ACS-59, "ICC Uni t" . Perform ICC system running test, and then per-

form self-diagnosis of ICC system again.

NG >> After repairing or replacing malfunctioning part. Perform ICC system running test, and then per-

form self-diagnosis of ICC system again.

Symptom 5: Chime Does Not Sound EKS007XW

The chime may not sound occasion ally in the following ca ses even if the distance from the vehicle ahead is short:

● When the sp eed difference from that of the vehicle ahead is small (both vehicles driving at similar speed).

● When the vehicle ahead drives at faster speed (the actual distance is increasing).

● When depressing the accelerator.

● Chime does not sound when the vehicle is not driving.

● Chime does not sound w hen the system does not detect any vehicle ahead. (Diagnose the conditions

under which the system is detecting th e vehicle ahead a nd w hen the system is malfunction ing. If ther e is any malfunction in detecting the vehicle ahead, refer to ACS-56, "

Cannot Detect the Vehicle Ahead/The Detection Zone is Short" .)

Symptom 7: The ICC System Frequently

1. CHECK ICC WARNING CHIME

With CONSULT-II

1. With active test, check that ICC warning chime operates normally. OK or NG

OK >> Determine prec eding vehicle de tection status when m alfunction occurr ed. If chime shou ld have

sounded replace ICC unit. Refer to ACS-59, " then perform s e lf-diagnosis of ICC system again.

NG >> GO TO 2.

ICC Unit" . Perform ICC s ystem running test, and

ACS

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TROUBLE DIAGNOSIS FOR SYMPTOMS

[ICC]

2. CAN COMMUNICATION INSPECTION

With CONSULT-II

1. With CONSULT-II self-diagnosis, check “CAN COMM CIRCUIT”.

OK or NG

OK >> Refer to ACS-38, "DTC 20 CAN COMM CIRCUIT" . NG >> Replace c ombination mete r and erase DT C. Refer to DI-25, "

nation Meter" . Pe rform ICC system ru nning te st, and then per form s elf-diag nos is of IC C s ystem

again.

Removal and Install ation of Combi -

Symptom 6: Dri v ing Force Is Hunting EKS007XX

1. CHECK ECM

1. Perfor m self-diagnosi s of ECM.

OK or NG

OK >> Refer to ACS-56, "Symptom 7: The ICC System Frequently Cannot Detect the Vehicle Ahead/The

Detection Zone is Short" .

NG >> After repairing a pplicable parts, erase D TC. Perform ICC system running te st, and then perform

self-diagnosis of ICC system again.

Symptom 7: The ICC System Frequentl y Cannot Detect the Vehicle Ahead/The Detection Zone is Short

EKS007XY

The detection function may bec ome unstable in the following cases:

● When the reflector of the vehicle ahead is sm all or not clean enough to reflect the laser.

● When driving a road with extremely sharp corners.

● When th e laser c annot detect the reflec tor of the vehicl e ahead as the vehicle ahe ad is passing a hill or

passing the peak.

1. VISUAL CHECK

1. Check ICC sensor body window for contamination and foreign materials.

OK or NG

OK >> If any contamination or forei gn m ateria ls are fou nd, r emove th em. T hen perform ICC system run -

ning test.

NG >> GO TO 2.

2. CHECK FU NC TI ON

1. After performing laser beam aiming adjustment, perform ICC system running test. Check that preceding vehicle detection performance has been improved.

OK or NG

OK >> Inspection End. NG >>

● Replace IC C sens or and perfor m laser beam aimi ng a djustment . Refer to A CS-59, "ICC Sen -

sor" .

● After performi ng above, perform ICC system running t est, and then perform s elf-diagnosis of

ICC system again.

Symptom 8: The Sys te m Does Not Detect the Vehicle Ahead at All EKS007XZ

1. VISUAL CHECK

1. With ignition sw itch tur ned ON (engine not starte d), check that all indic ator lam ps in ICC syste m display are continuous ly lit. (Check for a missing segment in preceding vehicle detection display.)

OK or NG

OK >> GO TO 2. NG >> Check combination meter. Refer to DI-17, "

Revision: August 2007 2004 QX56

How to Proceed With Trouble Diagnosis" .

ACS-56

Page 68

TROUBL E DIAGNOSIS FOR SYMPTOMS

[ICC]

2. VISUAL CHECK

● Check ICC sensor body window for contamination and foreign materials.

OK or NG

OK >> If any contamination or foreign materials are found , remove them. Perfor m ICC system running

test. Refer to ACS-9, "

NG >> GO TO 3.

ICC System R unning Test" .

3. VISUAL CHECK

● Check ICC sensor body window for cracks and scratches.

OK or NG

OK >> GO TO 4. NG >>

● Replace ICC sensor and perform laser bea m aiming adjustment. Ref er to ACS-59, "ICC Se n-

sor" .

● After performing above, perform ICC system running test, and th en perform self-diagnosis of

ICC system again.

4. ADJUST ICC SENSOR

● After performing l aser beam aiming adjustm ent, perform ICC sys tem running test. Check that preceding

vehicle detection performance has been improved.

OK or NG

OK >> Inspection End. NG >>

● Replace ICC sensor and perform laser bea m aiming adjustment. Ref er to ACS-59, "ICC Se n-

sor" .

● After performing above, perform ICC system running test, and th en perform self-diagnosis of

ICC system again.

ACS

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ACS-57

Page 69

ELECTRI CAL COMPON ENT INSPECTION

[ICC]

ELECTRI CAL COMPONENT INSPECTION PFP:00000 ICC St eering Switch EKS007TT

1. Disc onnect ICC steering switch.

2. Check resistance between M102 terminals 14 and 15 while depressing each switch.

Resistance [Ω]

Switch Condition

ON/OFF Depressed 0

Released 5,456

DISTANCE Depressed 741

Released 5,456

ACCEL/RES Depressed 2,586

Released 5,456

COAST/SET Depressed 1,406

Released 5,456

CANCEL Depressed 309

Released 5,456

(Approx.)

WKIA1916E

ICC Brake Switch and Stop Lamp Switch EKS007TU

Continuity

ICC brake switch Stop lamp switch When brake pedal is depressed No Yes When brake pedal is released Yes No

Check each switch after adjusting brake pedal. Refer to BR-6,

"BRAKE PEDAL" .

WKIA3405E

Parking Brake Switch EKS007TX

Continuity to ground Parking brake pedal depressed Yes Parking brake pedal released No

WKIA1918E

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ACS-58

Page 70

REMOVAL AN D INSTALLATION

[ICC]

REMOVAL AND INSTALLATION PFP:00000

ICC Unit EKS007TO

WKIA1914E

ICC Sens or EKS007TP

WKIA1915E

CAUTION:

Perform the laser beam aiming procedure every time the ICC sensor is removed or installed.

ACS

ICC Steering Switch EKS007TQ

Replace ICC steering switch as s witch kit assembly. Refer to AV-47, "Removal and Installati on of Steering

Wheel Audio Control Switches" .

Revision: August 2007 2004 QX56

ACS-59

Page 71

REMOVAL AND INSTAL L AT I O N

[ICC]

Revision: August 2007 2004 QX56

ACS-60

Page 72

I BODY

SECTION AP

CONTENTS

ADJUSTABLE PEDAL SYSTEM ............................... 2

Adjusta b le Pe d al .. .............. ............................. ......... 2

ADJUST ABLE PEDAL

Revision: August 2007 2004 QX56

AP-1

Page 73

ADJUSTABLE PEDAL SYS T EM

ADJUSTABLE PEDAL SYSTEM PFP:98800 Adjustable Pedal EIS005TT

For adjustable pedal information, refer to SE-11, "AUTOMATIC DRIVE POSITIONER" .

Revision: August 2007 2004 QX56

AP-2

Page 74

C TRANSMISSION/TRANSAXLE

SECTION AT

AUTOMATIC TRANSMISSION

CONTENTS

INDEX FOR DTC ......... ............................................... 5

Alphabetical Index .................................................... 5

DTC No. Index ......................................................... 6

PRECAUTIONS .......................................................... 7

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-

SIONER” .................................................................. 7

Precautions for On Board Diagnostic (OBD) System

of A/T and Engine .................................................... 7

Precautions .............................................................. 8

Service Noti ce or Pre ca u ti o ns ........... ....... ................ 9

Wiring Diagrams and Trouble Diagnosis .................. 9

PREPARATION ......................................................... 10

Special Service Tools ............................................. 10

Commercial Service Tools ...................................... 12

A/T FLUID ................................................ ................. 13

Changing A/T Fluid ................................................ 13

Checking A/T Fluid ................................................. 13

A/T Fluid Cooler Cleaning ......... ..... ....... ....... ..... ..... 15

A/T CONTROL SYSTEM .......................................... 18

Cross-Secti o n al View (2WD models) ..................... 18

Cross-Secti o n al View (4WD models) ..................... 19

Shift Mechanism ..................................................... 20

TCM Function ......................................................... 31

CAN Communicatio n ........................... ................... 32

Input/Output Signal of TCM . . .................................. 32

Line Pressure Control ........... ................................. 33

Shift Control ........................................................... 34

Lock-up Control ...................................................... 35

Engine Brake Control ............................................. 37

Control Valve .......................................................... 37

ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 39

Introduction ............................................................ 39

OBD-II Function for A/T System ............................. 39

One or Two Trip Detection Logic of OBD-II ............ 39

OBD-II Diagnostic Trouble Code (DTC) ................. 39

Malfunction Indicator Lamp ( MIL) ........................... 42

TROUBLE DIAGNOSIS ............................................ 43

DTC Inspection Priority Chart ................................ 43

Fail-Safe ................................................................. 43

How To Perform T rouble Diagnosis For Quic k and

Accurate Repair ....... ...............................................45

A/T Electrical Parts Location ..................................50

Circuit Diagram .......................................................51

Wiring Diagram — AT — .......... ....... ....................... 52

Inspections Before Trouble Diagnosis . ...................58

Check Before Engine is Started .............................. 62

Check at Idle ...........................................................62

Cruise Test - Part 1 ....... ............................ ..............63

Cruise Test - Part 2 ....... ............................ ..............65

Cruise Test - Part 3 ....... ............................ ..............66

Vehicle Speed When Shifting Gears ......................67

Vehicle Speed When Performing and Releasing

Complete Lock-u p ... ............................. .................. 67

Vehicle Speed When Performing and Releasing

Slip Lock-up ............. ............................. .................. 67

Symptom Chart ....................................................... 68

TCM Input/Output Signal Reference Values ........... 90

CONSULT-II Function (A/T) .................................... 91

DTC U1000 CAN COMMUNICATION LINE .......... ..103

Description ............................................................103

On Board Diagnosis Logic ....................................103

Possible Cause ................................................... ..103

DTC Confirmation Procedure ...............................103

Diagnostic Procedure ...................................... .....104

DTC P0615 START SIGNAL CIRCUIT ....... ... .. .. ... ..105

Description ............................................................105

CONSULT-II Reference Value ..............................105

On Board Diagnosis Logic ....................................105

Possible Cause ................................................... ..105

DTC Confirmation Procedure ...............................105

Diagnostic Procedure ...................................... .....106

DTC P0700 TCM ......................................... ... .. .. .....108

Description ............................................................108

On Board Diagnosis Logic ....................................108

Possible Cause ................................................... ..108

DTC Confirmation Procedure ...............................108

Diagnostic Procedure ...................................... .....108

DTC P0705 PARK/NEUTRAL POSITION SWITCH .109

Description ............................................................109

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CONSULT-II Reference Value ..............................109

On Board Diagnosis Logic ....................................109

Possible Cause ............................. ........................109

DTC Confirmation Procedure ...............................109

Diagnostic Procedure ........................................ ...110

DTC P0720 VEHICLE SPEED SENSOR A/T (REV-

OLUTION SENSOR) ...............................................112

Description ............................................................112

CONSULT-II Reference Value ..............................112

On Board Diagnosis Logic ....................................112

Possible Cause ............................. ........................112

DTC Confirmation Procedure ...............................112

Diagnostic Procedure ........................................ ...113

DTC P0725 ENGINE SPEED SIGNAL ...................115

Description ............................................................115

CONSULT-II Reference Value ..............................115

On Board Diagnosis Logic ....................................115

Possible Cause ............................. ........................115

DTC Confirmation Procedure ...............................115

Diagnostic Procedure ........................................ ...115

DTC P0740 TORQUE CONVERTER CLUTCH

SOLENOID VALVE ........... ....... ............................ ...118

Description ............................................................118

CONSULT-II Reference Value ..............................118

On Board Diagnosis Logic ....................................118

Possible Cause ............................. ........................118

DTC Confirmation Procedure ...............................118

Diagnostic Procedure ........................................ ...119

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) .121

Description ............................................................121

CONSULT-II Reference Value ..............................121

On Board Diagnosis Logic ....................................121

Possible Cause ............................. ........................121

DTC Confirmation Procedure ...............................121

Diagnostic Procedure ........................................ ...122

DTC P0745 LINE PRESSURE SOLENOID V ALVE .124

Description ............................................................124

CONSULT-II Reference Value ..............................124

On Board Diagnosis Logic ....................................124

Possible Cause ............................. ........................124

DTC Confirmation Procedure ...............................124

Diagnostic Procedure ........................................ ...125

DTC P1702 TRANSMISSION CONTROL MODULE

(RAM) ......................................................................127

Description ............................................................127

On Board Diagnosis Logic ....................................127

Possible Cause ............................. ........................127

DTC Confirmation Procedure ...............................127

Diagnostic Procedure ........................................ ...127

DTC P1703 TRANSMISSION CONTROL MODULE

(ROM) ......................................................................128

Description ............................................................128

On Board Diagnosis Logic ....................................128

Possible Cause ............................. ........................128

DTC Confirmation Procedure ...............................128

Diagnostic Procedure ........................................ ...128

DTC P1705 THROTTLE POSITION SENSOR .......129

Description ............................................................129

CONSULT-II Reference Value ..............................129

On Board Diagnosis Logi c . ............................ .......129

Possible Cause .....................................................129

DTC Confirmation Procedure ........ ........................129

Diagnostic Procedure ............................................129

DTC P1710 A/T FLUID TEMPERATURE SENSOR

CIRCUIT .................................................................. 131

Description ............................................................131

CONSULT-II Reference Value ...............................131

On Board Diagnosis Logi c . ............................ .......131

Possible Cause .....................................................131

DTC Confirmation Procedure ........ ........................131

Diagnostic Procedure ............................................132

Component Inspection ..........................................133

DTC P1716 TURBINE REVOLUTION SENSOR ....134

Description ............................................................134

CONSULT-II Reference Value ...............................134

On Board Diagnosis Logi c . ............................ .......134

Possible Cause .....................................................134

DTC Confirmation Procedure ........ ........................134

Diagnostic Procedure ............................................135

DTC P1721 VEHICLE SPEED SENSOR MTR .......136

Description ............................................................136

CONSULT-II Reference Value ...............................136

On Board Diagnosis Logi c . ............................ .......136

Possible Cause .....................................................136

DTC Confirmation Procedure ........ ........................136

Diagnostic Procedure ............................................137

DTC P1730 A/T INTERLOCK . ................................139

Description ............................................................139

On Board Diagnosis Logi c . ............................ .......139

Possible Cause .....................................................139

DTC Confirmation Procedure ........ ........................139

Judgement of A/T Interlock . ..................................140

Diagnostic Procedure ............................................140

DTC P1731 A/T 1ST ENGINE BRAKING ...............142

Description ............................................................142

CONSULT-II Reference Value ...............................142

On Board Diagnosis Logi c . ............................ .......142

Possible Cause .....................................................142

DTC Confirmation Procedure ........ ........................142

Diagnostic Procedure ............................................143

DTC P1752 INPUT CLUTCH SOLENOID VALVE ..145

Description ............................................................145

CONSULT-II Reference Value ...............................145

On Board Diagnosis Logi c . ............................ .......145

Possible Cause .....................................................145

DTC Confirmation Procedure ........ ........................145

Diagnostic Procedure ............................................146

DTC P1754 INPUT CLUTCH SOLENOID VALVE

FUNCTION ..............................................................148

Description ............................................................148

CONSULT-II Reference Value ...............................148

On Board Diagnosis Logi c . ............................ .......148

Possible Cause .....................................................148

DTC Confirmation Procedure ........ ........................148

Diagnostic Procedure ............................................149

DTC P1757 FRONT BRAKE SOLENOID VALVE ...151

Description ............................................................151

CONSULT-II Reference Value ...............................151

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On Board Diagnosis Logic ................................... 151

Possible Cause .................................................... 151

DTC Confirmation Procedure ............................... 151

Diagnostic Procedure ........................................... 152

DTC P1759 FRONT BRAKE SOLENOID VALVE

FUNCTION .............................................................. 154

Description ........................................................... 154

CONSULT-II Reference Value .............................. 154

On Board Diagnosis Logic ................................... 154

Possible Cause .................................................... 154

DTC Confirmation Procedure ............................... 154

Diagnostic Procedure ........................................... 155

DTC P1762 DIRECT CLUTCH SOLENOID V AL V E . 157

Description ........................................................... 157

CONSULT-II Reference Value .............................. 157

On Board Diagnosis Logic ................................... 157

Possible Cause .................................................... 157

DTC Confirmation Procedure ............................... 157

Diagnostic Procedure ........................................... 158

DTC P1764 DIRECT CLUTCH SOLENOID V AL V E

FUNCTION .............................................................. 160

Description ........................................................... 160

CONSULT-II Reference Value .............................. 160

On Board Diagnosis Logic ................................... 160

Possible Cause .................................................... 160

DTC Confirmation Procedure ............................... 160

Diagnostic Procedure ........................................... 161

DTC P1767 HIGH AND LOW REVERSE CLUTCH

SOLENOID VALVE ................................................. 163

Description ........................................................... 163

CONSULT-II Reference Value .............................. 163

On Board Diagnosis Logic ................................... 163

Possible Cause .................................................... 163

DTC Confirmation Procedure ............................... 163

Diagnostic Procedure ........................................... 164

DTC P1769 HIGH AND LOW REVERSE CLUTCH

SOLENOID VALVE FUNCTION ............................. 166

Description ........................................................... 166

CONSULT-II Reference Value .............................. 166

On Board Diagnosis Logic ................................... 166

Possible Cause .................................................... 166

DTC Confirmation Procedure ............................... 166

Diagnostic Procedure ........................................... 167

DTC P1772 LOW COAST BRAKE SOLENOID

VALVE ..................................................................... 169

Description ........................................................... 169

CONSULT-II Reference Value .............................. 169

On Board Diagnosis Logic ................................... 169

Possible Cause .................................................... 169

DTC Confirmation Procedure ............................... 169

Diagnostic Procedure ........................................... 170

DTC P1774 LOW COAST BRAKE SOLENOID

VALVE FUNCTION ................................................. 172

Description ........................................................... 172

CONSULT-II Reference Value .............................. 172

On Board Diagnosis Logic ................................... 172

Possible Cause .................................................... 172

DTC Confirmation Procedure ............................... 172

Diagnostic Procedure ........................................... 173

DTC P1841 ATF PRESSURE SWITCH 1 ... ............175

Description ............................................................175

CONSULT-II Reference Value ..............................175

On Board Diagnosis Logic ....................................175

Possible Cause ................................................... ..175

DTC Confirmation Procedure ...............................175

Diagnostic Procedure ...................................... .....176

DTC P1843 ATF PRESSURE SWITCH 3 ... ............178

Description ............................................................178

CONSULT-II Reference Value ..............................178

On Board Diagnosis Logic ....................................178

Possible Cause ................................................... ..178

DTC Confirmation Procedure ...............................178

Diagnostic Procedure ...................................... .....179

DTC P1845 ATF PRESSURE SWITCH 5 ... ............181

Description ............................................................181

CONSULT-II Reference Value ..............................181

On Board Diagnosis Logic ....................................181

Possible Cause ................................................... ..181

DTC Confirmation Procedure ...............................181

Diagnostic Procedure ...................................... .....182

DTC P1846 ATF PRESSURE SWITCH 6 ... ............184

Description ............................................................184

CONSULT-II Reference Value ..............................184

On Board Diagnosis Logic ....................................184

Possible Cause ................................................... ..184

DTC Confirmation Procedure ...............................184

Diagnostic Procedure ...................................... .....185

CLOSED THROTTLE POSITION AND WIDE OPEN

THROTTLE POSITION CIRCUIT ............................187

CONSULT-II Reference Value ..............................187

Diagnostic Procedure ...................................... .....187

BRAKE SIGNAL CIRCUIT ......................................188

CONSULT-II Reference Value ..............................188

Diagnostic Procedure ...................................... .....188

TOW MODE SWITCH .............................................189

Description ............................................................189

Diagnostic Procedure ...................................... .....189

TROUBLE DIAGNOSIS FOR SYMPTOMS ............191

AT CHECK Indicator Lamp Does Not Come On ..191 Engine Cannot Be Started In “P” or “N” Position ..192

In “P” Position, Vehicle Moves When Pushed ......193

In “N” Positi o n, Vehicle Moves ...... ........................194

Large Shock (“N” to “D” Position) .........................195

Vehicle Does Not Creep Backward In “R” P osition .198 Vehicle Does Not Creep Forward In “D” Position .201 Vehicle Cannot Be Started From D A/T D o e s Not Sh i f t: D A/T D o e s Not Sh i f t: D A/T D o e s Not Sh i f t: D A/T D o e s Not Sh i f t: D

1 → D2 ................................206

2 → D3 ................................208

3 → D4 ................................210

4 → D5 ................................213

1 .....................203

A/T Does Not Perform Lock-up ............................215

A/T Does Not Hold Lock-up Condition ..................217

Lock-up Is Not Released ......................................219

Engine Speed Does Not Return to Idle ................220

A/T Does Not Shift: 5th gear → 4th gear ..............221

A/T Does Not Shift: 4th gear → 3rd gear ..............224

A/T Does Not Shift: 3rd gear → 2nd gear .............225

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A/T Does Not Shift: 2nd gear → 1st gear .............227

Vehicle Does Not Decelerate By Engine Brake ....230

SHIFT CONTROL SYSTEM ....................................233

Control Device Removal and Installation ..............233

Adjustmen t of A/T Position ...... .............. ...............234

Checking of A/T Position ......................................234

A/T SHIFT LOCK SYSTEM .....................................236

Description ............................................................236

Shift Lock System Electrical Parts Location .........236

Wiring Diagram — A/T — SHIFT ..........................237

Shift Lock Control Unit Reference Values .............238

Component Inspection ..........................................239

ON-VEHICLE SERVICE ............... ...........................241

Control Valve With TCM and A/T Fluid Temperature

Sensor 2 ...............................................................241

Rear Oil Seal ........... ................................... ..........252

AIR BREATHER HOSE ...........................................253

Removal and Installation .... ..................................253

TRANSMISSION ASSEMBLY ................................255

Removal and Inst a llation (4x2 ) .............. ....... ........255

Removal and Inst a llation (4x4 ) .............. ....... ........258

OVERHAUL .............................................................261

Components .........................................................261

Oil Channel ...........................................................269

Locations of Adjusting Shims, Needle Bearings,

Thrust W a sh e rs and Sn ap Rings ..........................271

DISASSEMBLY .......................................................273

Disassembly .........................................................273

REPAIR FOR COMPONENT P ARTS ............. .........290

Oil Pump ...............................................................290

Front Sun Gear, 3rd One-Way Clutch ...................292

Front Carrier, Input Clutch, Rear Internal Gear .....295

Mid Sun Gear, Rear Sun Gear, High and Low

Reverse Clutch Hub .............................................. 300

High and Low Reverse Clutch ......... ..................... 305

Direct Clutch .......... ............................ ...................307

ASSEMBLY .............................................................309

Assembly (1) ...................................... ...................309

Adjustment ............................................................322

Assembly (2) ...................................... ...................324

SERVICE DATA AND SPECIFICATIONS (SDS) .... 331

General Specifications ..........................................331

Vehicle Speed When Shifting Gears .... .................331

Vehicle Speed When Performing and Releasing

Complete Lock-up .................................................332

Vehicle Speed When Performing and Releasing

Slip Lock-up . ...................... ...................................332

Stall Speed ............................................................ 332

Line Pressure .............................. ..........................332

A/T Fluid Temperature Sensor ......... .............. .......332

Turbine Revolution Sensor ....................................332

Vehicle Speed Sensor A/T (Revolution Sensor) ... 332

Reverse brake .......................................................333

Total End Play .......................................................333

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INDEX FO R DTC

INDEX FO R DTC PFP:00024

Alphabetical Index UCS002BZ

NOTE: If DTC U1000 is d isp lay ed w ith oth er DTC, first p erform the trou ble diagno sis for DT C U1 000. Refer t o

AT-103

*1: These numbers are pres cribed by SAE J2012. *2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.

DTC

Items

(CONSULT- II screen terms)

CONSULT- II GST (*1) CONSULT- II only “A/T” A/T 1ST E/BRAKING — P1731 AT-142 ATF PRES SW 1/ CIRC — P1841 AT-175 ATF PRES SW 3/ CIRC — P1843 AT-178 ATF PRES SW 5/ CIRC — P1845 AT-181 ATF PRES SW 6/ CIRC — P1846 AT-184 A/T INTERLOCK P1730 P1730 AT-139 A/T TCC S/V FNCTN P0744 P0744 AT-121 ATF TEMP SEN/CIRC P0710 P1710 AT-131 CAN COMM CIRCUIT U1000 U1000 AT-103 D/C SOLENOID/CIR C P1762 P1762 AT-157 D/C SOLENOID FNCTN P1764 (*2 ) P1764 AT-160 ENGINE SPEED SIG — P0725 AT-115 FR/B SOLENOID/CIRC P1757 P1757 AT-151 FR/B SOLENOID FNCT P1759 P1759 AT-154 HLR/C SOL/CIRC P1767 P1767 AT-163 HLR/C SOL FNCTN P 1769 (*2 ) P1769 AT-166 I/C SOLENOID/CIRC P1752 P1752 AT-145 I/C SOLENOID FNCTN P1754 (*2 ) P1754 AT-148 L/PRE SS SOL/CIRC P0745 P0745 AT-124 LC/B SOLENOID/CIRC P1772 P1772 AT-169 LC/B SOLENOID FNCT P1774 P1774 AT-172 PNP SW/CIRC P0705 P0705 AT-109 STARTER RELAY/CIRC — P0615 AT-105 TCC SOLENOID/CIRC P0740 P0740 AT-118 TCM P0700 P0700 AT-108 TCM·RAM — P1702 AT-127 TCM·ROM — P1703 AT-128 TP SEN/CIRC A/T — P1705 AT-129 TURBINE REV S/C IRC P1716 P 1716 AT-134 VEH SPD SE/CIR·MTR — P1721 AT-136 VEH SPD SEN/CIR AT P0720 P0720 AT-112

Reference pageOBD- II E xcept OBD- II

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INDEX FOR DTC

DTC No. Index UCS002C0

NOTE: If DTC U1 000 i s disp laye d wi th o ther D TC, f irst pe rform the tr ouble d iag nos is for DTC U 100 0. R ef er to

AT-103, "

*1: These numbers are prescribed by SAE J2012. *2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.

DTC U1000 CAN COMMUNICATION LINE" .

DTC

OBD- II Except OBD- II

CONSULT- II

GST (*1)

— P0615 STARTER RELAY/CIRC AT-105 P0700 P0700 TCM AT-108 P0705 P0705 PNP SW/CIRC AT-109 P0710 P1710 ATF TEMP SEN/CIRC AT-131 P0720 P0720 VEH SPD SEN/C IR AT AT-112

— P0725 ENGI N E SP EED SI G AT-115 P0740 P0740 TCC SOLENOID/CIRC AT-118 P0744 P0744 A/T TCC S/V FNCTN AT-121 P0745 P0745 L/PRESS SOL/CIRC AT-124

— P1702 TCM·RAM AT-127

— P1703 TCM·ROM AT-128

— P1705 TP SEN/CIRC A/T AT-129 P1716 P1716 TURBINE REV S/CI RC AT-136

— P1721 VEH SPD SE/CIR·MTR AT-136 P1730 P1730 A/T INTERLOCK AT-139

— P1731 A/T 1 ST E/BRAKING AT-142 P1752 P1752 I/C SOLENOID/CIRC AT-145

P1754 (*2 ) P1754 I/C SOLENOID FNCTN AT-148

P1757 P1757 FR/B SOLENOID/CIRC AT-151

P1759 (*2 ) P1759 FR/B SOLENOID FNCT AT-154

P1762 P1762 D/C SOLENOID/CIRC AT-157

P1764 (*2 ) P1764 D/C SOLENOID FNCTN AT-160

P1767 P1767 HLR/C SOL/CIRC AT-163 P1769 P1769 HLR/C SOL FNCTN AT-166 P1772 P1772 LC/B SOLENOID/CIRC AT-169 P1774 P1774 LC/B SOLENOID FNCT AT-172

— P1841 ATF PRES SW 1/CIRC AT-175

— P1843 ATF PRES SW 3/CIRC AT-178

— P1845 ATF PRES SW 5/CIRC AT-181

— P1846 ATF PRES SW 6/CIRC AT-184 U1000 U1000 CAN COMM CIRCUIT AT-103

CONSULT- II

only “A/T”

(CONSULT- II screen terms)

Items

Reference page

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PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions f or Supplemental Restraint System (S RS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”

UCS002C1

The Sup plemental Restraint Syste m such as “AIR BAG” and “SEAT BELT PRE-TENSIONER ”, used along with a fron t seat be lt, hel ps to re duce th e risk or s everity of injur y to th e dr iver and fro nt pass enge r for cer tain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt sw itches to d etermine the fron t air bag dep loyment, and may on ly d eploy one fr ont air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. Information necessary to service the system safely is included in the SRS and SB section of this Service Manual.

WARNING:

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

in the eve nt of a collision whic h would result in air bag inflation, all mai ntenance must be performed by an authorized NISSAN/INFINITI dealer.

● Improper mai ntenance, includin g incorrect removal an d installation of the SRS , can lead to per-

sonal injury caus ed by unin te ntional activati on of th e system . For rem oval of Spiral Cab le an d Air Bag Module, see the SRS section.

● Do not use electrica l test equipm ent on any circ uit related to the S RS unless in structed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors .

Precautions for On Board Diagnost i c (O BD) System of A/T and En gine UCS002C2

The ECM ha s an on board diagnostic system . It will light up the malfun ction indica tor lamp (MIL) to warn the driver of a malfunction caus ing emission deterioration.

CAUTION:

● Be sure to turn the ignition switch “OFF” and disconnect the negative battery cable before any

repair or inspection work. The open/short circuit of related switches, senso rs, solenoid valves, etc. Will cause the MIL to ligh t up.

● Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will

cause the MIL to light up due to an open circuit. (Be sure t he connector is free from water, grease, dirt, bent terminals, etc.)

● Be sure to ro ute and sec ure the harnes ses prope rly a fter wo rk. Int erferenc e of the harn ess with a

bracket, etc. May cause the MIL to light up due to a short circuit.

● Be sure t o conn ec t rubb er tub es p rope rl y afte r wo r k. A mi sco nne cte d o r di s conn ec t ed r ubb er tub e

may cause the MIL to light up due to a malfunction of the EGR system or fuel injection system, etc.

● Be sure to erase th e unnecessary m alfunctio n information (repairs completed) from the TCM an d

ECM before returning the vehicle to the customer.

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PRECAUTIONS

Precautions UCS002C3

● Before c onnecting or d isconnecting the A/T ass embly har-

ness connector, turn ignition sw itch “O FF” and disco nnect negative battery cable. Because battery vo ltage is applied to TCM even if ignition switch is turned “O FF”.

SEF289H

● After performing each TROUBLE DIAGNOSIS, perform

“DTC (Diagnostic Trouble Code) CONFIRMATION PROCEDURE”. If the repair is completed the DTC should not be displayed in the “DTC CONFIRMATION PROCEDURE”.

SEF217U

● Always use the specified br and of ATF. Re fer to MA- 10, "RECOMMENDED FLUIDS AND LUBRICANTS"

● Use paper rags not cloth rags during work.

● After repl acing the ATF, dispose of the waste oil using the methods prescribed by law, ordinance, etc.

● Before p roceeding w ith disasse mbly, thoroughly clean the outside of the transaxl e. It is important to pre-

vent the internal parts from becoming contaminated by dirt or other foreign matter.

● Disassembly should be done in a clean work area.

● Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could interfere

with the operation of the transaxle.

● Place disassembled parts in order for easier and proper assembly.

● All parts should be carefully clea ned with a general pur pose, non-flam mable solve nt before inspec tion or

reassembly.

● Gaskets, seals and O-rings should be replaced any time the transaxle is disassembled.

● It is very important to perform functional tests whenever they are indicated.

● The valve body contains precision parts and requires extreme care when parts are removed and serviced.

Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent springs and small parts from becoming scattered or lost.

● Properly installed valves, sleeves, plugs, etc. will slide along bor es in valve body under their own weight.

● Before assem bly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to pr otect O-rings

and seals, or hold bearings and washers in place during assembly. Do not use grease.

● Extreme c are should be taken to avoid damage to O-rings, seals and gaskets when assembling.

● After overhaul, refill the transaxle with new ATF.

● When the A/T drai n plug is removed, only some of the fluid is drai ned. Old A/T fluid wil l remain in torque

converter and ATF cooling system. Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer to AT-13, "

Changing A/T Fluid" , AT-13, "Checking A/T Fluid" .

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PRECAUTIONS

Service Notice or Precautions UCS002C4

ATF COOLER SERVICE

If A/T fluid contains fric tional material (clutc he s, bands, etc .), or if an A/T is repaired, ov erhaul ed , or replac ed, inspect and clea n the A/T fl uid cool er mou nted in the radi ato r or repl ace th e r adiator. Flush cool er lines u sing cleaning solven t and c om presse d air afte r repair. For A/T fluid cooler c leaning pr ocedu re, refer to AT-15, "

A/T

Fluid Cooler Cleaning" . For radiator replacement, refer to CO- 10, "RADIATOR" .

CHECKING AND CHANGING A/T FLUID SERVICE

Increase ATF tempe rature by 80°C (176 °F) once, and then ch eck ATF level in 65°C ( 149°F) wh en adjusting ATF level.

NOTE:

JA60 uses both systems of a water-cooling and of an air-cooling. Air-cooling system has a by-pass valve. When ATF temperature is not over 50°C (122°F) with water-cooling system OFF, it does not flow to air-cooling system. If ATF level is set without the flow of ATF, the level will be 10mm lower than the standard. Therefore, piping shoul d be filled with ATF when adjusting level.

OBD-II SELF-DIAGNOSIS

● A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through

the blinking pattern of the malfunction indicator lamp (MIL). Refer to the table on AT-93, "

TIC RESULT MODE" for the indicator used to display each self-diagnostic result.

● The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem-

ories.

Always perform the procedure on AT-40, "

HOW TO ERASE DTC" to complete the repair and avoid

unnecessary blinking of the MIL.

For details of OBD-II, refer to AT-39, "

● Certain systems an d compone nts, especially those rela ted to OBD , may use the n ew style slid e-

ON BOARD DIAGNOSTIC (OBD) SYSTEM" .

locking type harness connector. For description and how to disconnect, refer to PG-68, "

NESS CONNECTOR" .

SELF-DIAGNOS-

HAR-

Wiring Diagrams and Trouble Diagnos is UCS002C5

When you read wiring diagrams, refer to th e following:

● GI-15, "How to Read Wiring Diagram s".

● PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit.

When you perform trouble diagnosis, refer to the following:

● GI-11, "How to Follow Trouble Diagnoses".

● GI-27, "Ho w to Perform Efficient Diagnosis for an Electrical Incident".

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PREPARATION

PREPARATION PFP:00002 Special Serv ice Tools UCS002C6

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

Tool number (Kent-Moore No.) Tool name

ST2505S001 (J-34301-C) Oil pressure gauge set 1 ST25051001 (—) Oil pressure gauge 2 ST25052000 (—) Hose 3 ST25053000 (—) Joint pipe 4 ST25054000 (—) Adapter 5 ST25055000 (—) Adapter

KV31103600 (J-45674) Joint pipe ad apter (With ST25054000)

ZZA0600D

Description

Measuring line pressure

ST33400001 (J-26082) Drift a: 60 mm (2.36 in) dia. b: 47 mm (1.85 in) dia.

KV31102400 (J-34285 and J-34285-87) Clutch spring compressor a: 320 mm (12.60 in) b: 174 mm (6.85 in)

ZZA1227D

● Installing rear oil seal (2WD models)

● Installing oil pump housing oil seal

NT086

Installing reverse brake return spring retainer

NT423

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PREPARATION

Tool numbe r (Kent-Moore No.) Tool name

ST25850000 (J-25721-A) Sliding hammer a: 179 mm (7.05 in) b: 70 mm (2.76 in) c: 40 mm (1.57 in) d: M12X1.75P

— (J-47002) Transmission jack adapter kit

— (J-47002-1) Center bracket (Pathfinder with AllMode 4WD)

— (J-47002-2) Center bracket (Titan and Armada)

— (J-47002-3) Adapter plate

— (J-47002-4) Adapter block

NT422

LCIA0364E

Description

Remove oil pum p ass em bly

Assist i n rem oval of tra nsmi ssion an d trans fer case as one assembly using only one transmission jack.

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PREPARATION

Commercial Service Tools UCS002C7

Tool name Description Power tool Loosening bolts and nuts

PBIC0190E

Drift a: 22 mm (0.87 in) dia.

NT083

Drift a: 64 mm (2.52 in) dia.

Installing manual shaft seals

Installing rear oil seal (4WD models)

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A/T FLU I D

A/T FLU ID PFP:KLE40

Changing A/T Fluid UCS002C8

1. Increase ATF temperature by 80°C (176°F) once.

2. Stop engine.

3. Remove the tightening bolt for ATF level gauge.

4. Drain ATF from drain plug and refill with new ATF. Always refill same volume with drained fluid.

● To replace the ATF, pou r in new fluid a t the char ging pipe w ith the engine idl ing and at the sam e time

drain the old fluid from the radiator cooler hose return side.

● W hen the color of the flui d coming out is about the sa me as the col or of the new fluid, the replace ment

is complete. T he amount o f new transmiss ion fluid to use s hould be 30 t o 50% increase o f the stipulated amount.

ATF: NISSAN Matic Fluid J Fluid capacity: 10.6 (11-1/4 US qt, 9-3/8 lmp qt)

CAUTION:

● Use only Genuine NISSAN ATF Matic Fluid J. Do not mix with other fluid.

● Using automatic transmission fluid other than Genui ne NISSAN ATF Matic Fluid J will cause

deterioration in driveability and automatic transm ission durability, and may damag e the automatic transmission, which is not covered by the warranty.

● When filling ATF, take care not to scatter heat generating parts such as exhaust.

Drain plug:

: 34 N·m (3.5 kg-m, 25 ft-lb)

5. Increase ATF temperature by 80°C (176°F) once.

6. Check flui d level a nd condi tion. Refe r to AT-13, "

Checking A/ T Fluid" . If fluid is sti ll dirty, repeat step 2.

through 5.

7. Install the removed ATF level gauge in the fluid charging pipe.

Level gauge bolt:

: 5.1 N·m (0.52 kg-m, 45 in-lb)

Checking A/ T F l u i d UCS002C9

1. Warm up engine.

2. Check for fluid leakage.

3. Remove the tightening bolt for ATF level gauge.

4. Before driving, fluid level can be checked at fluid temperatures of 30° to 50°C (86° to 122°F) using “COLD” range on ATF level gauge as f ollows.

a. Park vehicle on level surface and set parking brake. b. Start engine and move selector lever through each gear pos ition. Leave selector lever in “P ” position. c. Check fluid level wi th engine idling. d. Remove ATF level gauge and wipe clean with lint-free paper.

CAUTION:

When wiping away the fluid level gauge, always use lint-free paper, not a cloth one.

e. Re-insert ATF level gauge into charging pipe as far as it will go.

CAUTION:

To check fluid level, insert the ATF level gauge until the cap contacts the end of the charging pipe, with the gauge reversed from the normal attachment co nditions.

f. Remove ATF level gauge and note reading. If read ing is at low side of range, add fl uid to the charging

pipe.

CAUTION:

Do not overfill.

5. Increase ATF temperature by 80°C (176°F) once.

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A/T FLUID

6. Make the fluid temperature approximately 65°C (149°F).

NOTE: Fluid level will be great ly affec ted by temperat ure as shown in figur e. There fore, be certain to perform operation while checking data with CONSULT-II.

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a. Connect CONSULT-II to data link connector. b. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II. c. Read out the value of “ATF TEMP 1”.

7. Re-chec k fluid level at fluid tem peratures o f appro ximately 65°C (14 9°F) using “H OT” range on A/T fluid level gauge.

CAUTION:

● When wiping away the f luid level gauge, always use lint-free paper, not a cloth one.

● To check f luid level, insert the ATF level ga uge until the

cap contacts the end of the charging pipe, with the gauge reversed from the normal attachment conditions as shown.

8. Check fluid condition.

● If fluid is very dar k or smells b urned, refer to c heck operati on

of A/T. Flush cooling system after repair of A/T.

● If ATF contains frictional material (clutches, bands, etc.),

replace radiator and flush cooler line using cleaning solvent and compressed air after repair of A/T. Refer to CO-10,

"RADIATOR" and AT-15, "A/T Fluid Cooler Cleaning" .

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9. Install the removed ATF level gauge into the fluid charging pi pe.

Level gauge bolt:

: 5.1 N·m (0 .52 kg-m, 45 in-lb)

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A/T FLU I D

A/T Fluid Co oler Cleaning UCS002CA

Whenever an auto mati c transm issi on is repaired, over hauled , or repla ced, the A/T fluid cool er mounte d in the radiator must be inspected and cleaned. Metal debris and f riction ma ter ial, if p rese nt, can bec om e trappe d i n the A/T fl uid cool er. This debris c an contaminate the newly serviced A/T or, in severe cases, can block or restrict the flow of A/T fluid. In either case, malfunction of the newly serviced A/T may result. Debris, if present, may build up as A/T fluid enters the c ooler inlet. It will be necessary to back flush the cooler through the cooler outlet in order to flush out any built up debris.

A/T FLUID COOLER CLEANING PROCEDURE

1. Position an oil pan under the automatic transmission's inlet and outlet cooler hoses.

2. Identify the inlet and outlet fluid cooler hoses.

3. Disconnect the fluid cooler inlet and outlet rubber hoses from the steel cooler tubes or bypass valve.

NOTE:

Replace the cooler hoses if rubber material from the hose remains on the tube fitting.

4. Allow any A/T fluid that rema ins in the cool er hose s to drain into the oil pan.

5. Insert the extension adapter hose of a can of Transmission Cooler Cleane r (Nissa n P/N 99 9MP -AM0 06) into the c ooler outlet hose.

CAUTION:

● Wear safety glasses and rubber gloves when spraying

the Transmission Cooler Cleaner.

● Spray cooler cleaner only with adequate ventilation.

● Avoid contact with eyes and skin.

● Do not breath vapors or spray mist.

6. Hold the hose and can as high as pos si ble and spr ay Transmission Cooler Cleaner in a continuous stream into the cooler outlet hose until fluid flows out of the cooler inlet hose for 5 seconds.

7. Insert the tip of an air gun into the end of t he cooler outlet hose.

8. Wrap a shop rag aroun d the air gun tip and of the cooler outle t hose.

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9. Blow compr essed ai r reg ulated to 5 - 9 kg/c m

(70 - 130 psi) throug h the cool er outl et ho se for 10 sec-

onds to force out any remaining fluid.

10. Repeat steps 5 through 9 three additional times.

11. Position an oil pan under the banjo bolts that connect the fluid cooler steel lines to the transmission.

12. Remove the banjo bolts.

13. Flush each steel line from th e c ooler side bac k towa rd th e trans miss ion by spraying Transm issi on Cool er Cleaner in a continuous stream for 5 seconds.

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A/T FLUID

14. Blow compressed air regulated to 5 - 9 kg/cm2 (70 - 130 psi) through each steel line from the cooler side back toward the transmission for 10 seconds to force out any remaining fluid.

15. Ensure all debris is removed from t he steel cooler lines.

16. Ensure all debris is removed from t he banjo bolts and fittings.

17. PerformAT-16, "

A/T FL UID COOLER DIAGNOSIS PROCEDURE

NOTE:

Insufficient cleaning of the cooler inlet hose exterior may lead to inaccurate debris identification.

1. Position an oil pan under the automatic transmission's inlet and outlet cooler hoses.

2. Clean the exterior and tip of the cooler inlet hose.

3. Insert the extension adapter hose of a can of Transmission Cooler Cleaner (Nissan P/N 999 MP- AM006 ) into th e co oler o utlet hose.

CAUTION:

● Wear safety glasses and rubber gloves when spraying

the Transmission Cooler Cleaner.

● Spray cooler cleaner only with adequate ve ntilation.

● Avoid contact with eyes and skin.

● Do not breath vapors or spray mist.

4. Hold th e hose and can as high as possib le and s pray Transmission Cooler Cleaner in a continuous stream into the cooler outlet hose until fluid flows out of the cooler inlet hose for 5 seconds.

5. Tie a common white, basket-type c offee filter to the end o f the cooler inlet hose.

A/T FLUID COOLER DIAGNOSIS PROCEDU RE" .

SCIA3831E

6. Insert the tip of an air gun into the end of the cooler outlet hose.

7. Wrap a shop rag ar ound the air gun tip and end of coole r outlet hose.

8. Blow compr essed air regulated to 5 - 9 kg/cm

(70 - 130 psi) through the c ooler outlet hose to force any rem aining A/T fluid into the coffee filter.

9. Remove the coffee filter from the end of the cooler inlet hose.

10. Perform AT-17, "

A/T FLUID COOLER INSPECTION PROCE-

DURE" .

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A/T FLU I D

A/T FLUID COOLER INSPECTION PROCEDURE

1. Inspect the coffee filter for debris. a. If small metal debris less than 1mm (0.040 in) in size or metal

powder is found in the coffee filter, this is normal. If normal debris is found, the A/T fluid cooler/radi ator can be re-used an d the procedure is ended.

b. If one or more pieces of debris are found that are over 1mm

(0.040 in) in size and/or peeled clutch facing material is found in the coffee filter, the fluid c ooler is not s ervicea ble. The A/T fluid cooler/radiator must be replaced and the inspection procedure is ended. Refer to CO-10, "

RADIATOR" .

A/T FLUID COOLER FINAL INSPECTION

After performing all procedures, ensure that all remaining oil is cleaned from all components.

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A/T CONTROL SYSTEM

A/T CONTROL SYSTEM PFP:31036 Cross-Sectional View (2WD models) UCS002CB

1. Front planetary gear 2. Mid p lanetary gear 3. Rear planetary gear

4. Direct clutch 5. High and low reverse clutch 6. Reverse brake

7. Drum support 8. Forward brake 9. Low coast brake

10. Input shaft 11. Torque converter 12. Oil pump

13. Front brake 14. 3rd one-wa y clutch 15. Input clutch

16. 1st one-way clutch 17. Control valve with TCM 18. Forward one-way clutch

19. Rear extension 20. Output shaft

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A/T CONTROL SYSTEM

Cross-Secti onal View (4WD models) UCS002CC

1. Front planetary gear 2. Mid planetary gear 3. Rear planetary gear

4. Direct clutch 5. High and low reverse clutch 6. Reverse brake

7. Drum support 8. Forward brake 9. Low coast brake

10. Input shaft 11. Torque converter 12. Oil pump

13. Front brake 14. 3rd one-way clutch 15. Input clutch

16. 1st one-way clutch 17. Control valve with TCM 18. Forward one-way clutch

19. Adapter case 20. Output shaft

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A/T CONTROL SYSTEM

Shift Mechanism UCS002CD

The automati c transmission uses compact dual planetary g ear systems to improve power-transm ission efficiency, simplify construction and reduce weight. It also emp loys an op timum sh ift control and super wi de gea r ratios. They impro ve starting p erformance a nd acceleration during medium and high-speed operation.

CONSTRUCTION

1. Front brake 2. Input clutch 3. Direct clutch

4. High and low reverse clutch 5. Reverse brake 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way clutch 11. Front sun gear 12. Input shaft

13. Mid internal gear 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mid sun gear 18. Front carrier

19. Mid carrier 20. Rear internal gear 21. Output shaft

22. Parking gear 2 3. Parking paw l

FUNCTION OF CLUTCH AND BRAKE

Name of the Part Abbreviation Function

Front brake (1) FR/B Fastens the front sun gear (11). Input clutch (2) I/C

Direct clutch (3) D/C Connects the rear carrier (15) and the rear sun gear (16). High and low reverse clutch (4) HLR/C Connects the mid sun gear (17) and the rear sun gear (16). Rever se brake (5) R/B Fast ens the r ear car rier (15). Forwa rd brak e (6) F/B Fastens the mid sun gear (17). Low coast brake (7) LC/B Fastens the mid sun gear ( 17).

1st one-way clutch (8) 1st/O.C

Forward one-way clutch (9) F/O.C

3rd one-way clutch (10) 3rd/O.C

Connects the input shaft (12), the front internal gear (14) and the mid internal gear (13).

Allows the rear sun gear (16) to t urn f ree l y fo r wa rd relative t o the m i d su n gear (17) but fastens it for reverse rotation.

Allows the mid sun ge ar (17) to tu r n f r ee ly i n t h e forward direction but fastens it for reverse rotation.

Allows the front sun gear (11) to turn freely in the forward direction but fastens it for reverse rotation.

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A/T CONTROL SYSTEM

CLUTCH AND BAND CHART

Shift position I/C HLR/C D/C R/B FR/B L C/B Fwd/B

1st

OWC

Fwd

OWC

3rd

OWC

Remarks

P P AR K PO SI T I O N

1st

2nd

3rd 4th 5th

1st

2nd

3rd 4th

1st

2nd

3rd 4th

REVERSE POSITION

NEUTRAL POSI-

Automatic shift

1⇔2⇔3⇔4⇔5

Automatic shift 1⇔2⇔3⇔4

Automatic shift

1⇔2⇔3⇐4

TION

1st

2nd

3rd 4th

1st

2nd

3rd 4th

● —Operates

● —Operates during “progressive” acceleration.

● —Operates and effects power transmission while coasting.

● —Line pressure is applied but does not affect power transmission.

● —Operates under conditions shown in HLR/C Operating Condition

● —Operates under conditions shown in LC/B Operating Condition. Delay control is applied during D (4,3,2,1)

Automatic shift

1⇔2⇐3⇐4

Locks (held sta-

tionary in 1st

gear)

1⇐2⇐3⇐4

N shift.

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A/T CONTROL SYSTEM

LCIA0316E

POWER TRANSMISSION “N” Position

Since both the forward brake and the reverse brake are released, torque from the input shaft drive is not transmitted to the output shaft.

“P” Position

● The same as for the “N” position, both the fo rward brake and the re verse brake are relea sed, so torque

from the input shaft drive is not transmitted to the output shaft.

● The parking pawl link ed with the select lever meshes with the parking gear and fastens the outp ut shaft

mechanically.

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1. Front brake 2. Input clutch 3. Direct clutch

4. Hig h and low reverse clutch 5. Reverse br ake 6. Forward brake

7. Low coa st brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way clutch 11. Front sun gear 12. Input shaft

13. Mid internal gear 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mid sun gear 18. Front carrier

19. Mid carri er 20. Rear inte rnal gear 21. Output shaft

22. Parking gear 23. Parking pawl

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A/T CONTROL SYSTEM

“D”, “4”, “3”, “2” Positions 1st Gear

● The forward brake and the forward one-way clutch regulate reverse rotation of the mid sun gear.

● The 1st one-way clutch reg ulates reverse rotation of the rear sun gear.

● The 3rd one-way clutch regulates reverse rotation of the front sun gear.

● During decele ration, the mid sun gear tur ns forward, s o the forward one-way clutc h idles and the engine

brake is not activated.

1. Front brake 2. Input clutch 3. Direct clutch

4. High and low reverse clutch 5. Reverse brake 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way clutch 11. Front sun gear 12. Input shaft

13. Mid internal gear 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mid sun gear 18. Front carrier

19. Mid carrier 20. Rear internal gear 21. Output shaft

22. Parking gear 23. Parking pawl

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A/T CONTROL SYSTEM

“1 ” Position 1st Gear

● The front brake fastens the front sun gear.

● The forward brake and the forward one-w ay clutch regulate reverse rotation of the mid sun gear.

● High and low reverse clutch connects the rear sun gear and the mid sun gear.

● The low coast brake fastens the mid sun gear.

● During decel eration, the low coast brake regulates forward rotation of the mi d sun gear and the engine

brake functions.

1. Front brake 2. Input clutch 3. Direct clutch

4. Hig h and low reverse clutch 5. Reverse br ake 6. Forward brake

7. Low coa st brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way clutch 11. Front sun gear 12. Input shaft

13. Mid internal gear 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mid sun gear 18. Front carrier

19. Mid carri er 20. Rear inte rnal gear 21. Output shaft

22. Parking gear 23. Parking pawl

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A/T CONTROL SYSTEM

“D”, “4”, “3” Positions 2nd Gear

● The forward brake and the forward one-way clutch regulate reverse rotation of the mid sun gear.

● The 3rd one-way clutch regulates reverse rotation of the front sun gear.

● The direct cl utch is coupled and the rear carrier and rear sun gear are connected.

● During deceleration, the mid sun gear turns forward, so the forward one-way clutch idles and engine

brake is not activated.

1. Front brake 2. Input clutch 3. Direct clutch

4. High and low reverse clutch 5. Reverse brake 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way clutch 11. Front sun gear 12. Input shaft

13. Mid internal gear 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mid sun gear 18. Front carrier

19. Mid carrier 20. Rear internal gear 21. Output shaft

22. Parking gear 23. Parking pawl

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A/T CONTROL SYSTEM

“2”, “1” Position 2nd Gear

● The front brake fastens the front sun gear.

● The forward brake and the forward one-w ay clutch regulate reverse rotation of the mid sun gear.

● The direct clutch is coupled, and the rear carrier and rear sun gear are connected.

● The low coast brake fastens the mid sun gear.

● During decel eration, the low coast brake regulates forward rotation of the mi d sun gear and the engine

brake functions.

1. Front brake 2. Input clutch 3. Direct clutch

4. Hig h and low reverse clutch 5. Reverse br ake 6. Forward brake

7. Low coa st brake 8. 1st one- w ay clut ch 9. Forward one-wa y cl utch

10. 3rd one-way clutch 11. Front sun gear 12. Input shaft

13. Mid internal gear 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mid sun gear 18. Front carrier

19. Mid carri er 20. Rear inte rnal gear 21. Output shaft

22. Parking gear 23. Parking pawl

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A/T CONTROL SYSTEM

“D”, “4”, “3” Positions 3rd Gear

● The front br ake fastens the front sun gear.

● The direct clutch is coupled, and the rear carrier and rear sun gear are connected.

● The high and low reverse clutch is coupled and the mid sun gear and rear sun gear are connected.

1. Front brake 2. Input clutch 3. Direct clutch

4. High and low reverse clutch 5. Reverse brake 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way clutch 11. Front sun gear 12. Input shaft

13. Mid internal gear 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mid sun gear 18. Front carrier

19. Mid carrier 20. Rear internal gear 21. Output shaft

22. Parking gear 23. Parking pawl

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Infiniti QX56 2004 Workshop Manual

Specifications and Main Features

Frequently Asked Questions

User Manual