2004 INFINITI QX56 parking brake

-1QUICK REFERENCE INDEX AGENERAL INFORMATIONGIGeneral InformationBENGINEEMEngine MechanicalLUEngine Lubrication SystemCOEngine Cooling SystemECEngine Control SystemFLFuel SystemEXExhaust SystemACCAccelerator Control SystemCTRANSMISSION/
TRANSAXLEATAutomatic TransmissionDDRIVELINE/AXLETFTransferPRPropeller ShaftFFDFront Final DriveRFDRear Final DriveFAXFront AxleRAXRear AxleESUSPENSIONFSUFront SuspensionRSURear SuspensionWTRoad Wheels & TiresFBRAKESBRBrake SystemPBParking Brake SystemBRCBrake Control SystemGSTEERINGPSPower Steering SystemHRESTRAINTSSBSeat BeltsSRSSupplemental Restraint System (SRS)IBODYBLBody, Lock & Security SystemGWGlasses, Window System & MirrorsRFRoofEIExterior & InteriorIPInstrument PanelSESeatAPAdjustable PedalsJAIR CONDITIONERATCAutomatic Air ConditionerKELECTRICALSCStarting & Charging SystemLTLighting SystemDIDriver Information SystemWWWiper, Washer & HornBCSBody Control SystemLANLAN SystemAVAudio Visual, Navigation & Telephone SystemACSAuto Cruise Control SystemPGPower Supply, Ground & Circuit ElementsLMAINTENANCEMAMaintenanceMINDEXIDXAlphabetical IndexEdition: February 2004
Revision: August 2007BDACEFGHIJKLM

ACS-2Revision: August 20072004 QX56 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*
1
, ON/OFF Switch Does Not Switch OFF*
2 .............. 53
Symptom 2: The ICC System Cannot Be Set (ON/
OFF Switch Turns 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 Steering 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 Steering Switch ................................................59

ACS-12
[ICC]
LASER BEAM AIMING ADJUSTMENT
Revision: August 20072004 QX56
LASER BEAM AIMING ADJUSTMENTPFP:00026
Outline of Laser Beam Aiming Adjustment ProcedureEKS007TI
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 collision.
1. Prepare the vehicle and the work area.
2. Set up the ICC target board.
3. Adjust the sensor following the procedure on CONSULT-II.
4. Check system operation after the adjustment.
PreparationEKS007PC

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

Adjust the tire pressure to the specified value.

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

Check that the vehicle suspension has been adjusted to the standard height by the load leveling rear air
suspension system. Refer to RSU-12, "
Basic Inspection" .

Clean the ICC sensor with a soft cloth.
Setting up the ICC Target BoardEKS007PE
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.Tool number : KV99110100 (J-45718)
WKIA1848E
WKIA1849E

TERMINALS AND REFERENCE VALUE
ACS-25
[ICC]
C
D
E
F
G
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ACS
Revision: August 20072004 QX56
TERMINALS AND REFERENCE VALUEPFP:00000
Terminals and Reference Values for ICC UnitEKS007RQ
Terminals and Reference Values for ICC SensorEKS007RR
Te r m i n a l s
(wire color)
ItemCondition
Voltage (V)
(Approx.)
(+) (–)Ignition
switchOperation
1 (W/L)
2 (W/L)
GroundBattery power supply OFF — Battery voltage
5 (R) CAN-L — — —
7 (B/R) N-P RANGE ON A/T selector lever in "P" or "N" Battery voltage
10 (V/R)
GroundBrake booster signal ON —
14 (W) CAN-H — — —
19 (B)
20 (B)
46 (B)
GroundGround
ON——
29
(BR/W)ICC brake switch
(normally closed)Selector
lever: Not in
“N” or “P”
positionDepress the brake
pedal0
Release the brake
pedalBattery voltage
30 (L) DDL-TX — — —
33 (R/B)
42 (R/B)
GroundIgnition switch power supply ON —
Battery voltage
38 (R/G)Stop lamp switch
(normally open) OFFDepress the brake pedal
Release the brake pedal 0
39 (V/W) DDL-RX — — —
40 (G) Parking brake signal
ONParking brake is ON 0
Parking brake is OFF
Battery voltage
47 (BR) Stop lamp drive output signalBrake operating with ICC system
Brake not operating with ICC sys-
tem0
SKIA1243E
Terminals
(wire color)
ItemCondition
Voltage (V)
(+) (–)Ignition
switchOperation
1 (R/B)
GroundIgnition switch power supply
ON— Battery voltage
2 (W) CAN-H — —
3 (R) CAN-L — —
4 (B) Ground — —

ACS-28
[ICC]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Revision: August 20072004 QX56
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
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.
Possible Causes of "Auto-Cancel"
Laser Beam Adjust
For details, refer to ACS-12, "LASER BEAM AIMING ADJUSTMENT" .
SELF-DIAGNOSTIC RESULTS
For details, refer to ACS-36, "Diagnostic Trouble Code (DTC) Chart" .
WKIA2041E
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.
SKIA6191E
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 pressed.
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 RECORD —

ACS-58
[ICC]
ELECTRICAL COMPONENT INSPECTION
Revision: August 20072004 QX56
ELECTRICAL COMPONENT INSPECTIONPFP:00000
ICC Steering SwitchEKS007TT
1. Disconnect ICC steering switch.
2. Check resistance between M102 terminals 14 and 15 while
depressing each switch.
ICC Brake Switch and Stop Lamp SwitchEKS007TU
Check each switch after adjusting brake pedal. Refer to BR-6,
"BRAKE PEDAL" .
Parking Brake SwitchEKS007TX
Switch ConditionResistance [Ω]
(Approx.)
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
WKIA1916E
Continuity
ICC brake switch Stop lamp switch
When brake pedal is depressed No Yes
When brake pedal is released Yes No
WKIA3405E
Continuity to ground
Parking brake pedal depressed Yes
Parking brake pedal released No
WKIA1918E

A/T FLUID
AT-13
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: August 20072004 QX56
A/T FLUIDPFP:KLE40
Changing A/T FluidUCS002C8
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, pour in new fluid at the charging pipe with the engine idling and at the same time
drain the old fluid from the radiator cooler hose return side.

When the color of the fluid coming out is about the same as the color of the new fluid, the replacement
is complete. The amount of new transmission fluid to use should be 30 to 50% increase of the stipu-
lated amount.
CAUTION:

Use only Genuine NISSAN ATF Matic Fluid J. Do not mix with other fluid.

Using automatic transmission fluid other than Genuine NISSAN ATF Matic Fluid J will cause
deterioration in driveability and automatic transmission durability, and may damage the auto-
matic transmission, which is not covered by the warranty.

When filling ATF, take care not to scatter heat generating parts such as exhaust.
5. Increase ATF temperature by 80°C (176°F) once.
6. Check fluid level and condition. Refer to AT-13, "
Checking A/T Fluid" . If fluid is still dirty, repeat step 2.
through 5.
7. Install the removed ATF level gauge in the fluid charging pipe.
Checking A/T FluidUCS002C9
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 follows.
a. Park vehicle on level surface and set parking brake.
b. Start engine and move selector lever through each gear position. Leave selector lever in “P” position.
c. Check fluid level with 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 conditions.
f. Remove ATF level gauge and note reading. If reading is at low side of range, add fluid to the charging
pipe.
CAUTION:
Do not overfill.
5. Increase ATF temperature by 80°C (176°F) once. ATF: NISSAN Matic Fluid J
Fluid capacity: 10.6 (11-1/4 US qt, 9-3/8 lmp qt)
Drain plug:
: 34 N·m (3.5 kg-m, 25 ft-lb)
Level gauge bolt:
: 5.1 N·m (0.52 kg-m, 45 in-lb)

AT-20
A/T CONTROL SYSTEM
Revision: August 20072004 QX56
Shift MechanismUCS002CD
The automatic transmission uses compact dual planetary gear systems to improve power-transmission effi-
ciency, simplify construction and reduce weight.
It also employs an optimum shift control and super wide gear ratios. They improve starting performance and
acceleration during medium and high-speed operation.
CONSTRUCTION
FUNCTION OF CLUTCH AND BRAKE
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
PCIA0002J
Name of the Part Abbreviation Function
Front brake (1) FR/B Fastens the front sun gear (11).
Input clutch (2) I/CConnects the input shaft (12), the front internal gear (14) and the mid internal
gear (13).
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).
Reverse brake (5) R/B Fastens the rear carrier (15).
Forward brake (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.CAllows the rear sun gear (16) to turn freely forward relative to the mid sun gear
(17) but fastens it for reverse rotation.
Forward one-way clutch (9) F/O.CAllows the mid sun gear (17) to turn freely in the forward direction but fastens it
for reverse rotation.
3rd one-way clutch (10) 3rd/O.CAllows the front sun gear (11) to turn freely in the forward direction but fastens
it for reverse rotation.