2004 INFINITI FX35 Body

ABCDEFGHIJKMLQUICK 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 & Mir-
rorsRFRoofEIExterior & InteriorIPInstrument PanelSESeatJAIR CONDITIONERATCAutomatic Air ConditionerKELECTRICALSCStarting & Charging SystemLTLighting SystemDIDriver Information SystemWWWiper, Washer & HornBCSBody Control SystemLANLAN SystemAVAudio Visual, Navigation & Tele-
phone SystemACSAuto Cruise Control SystemPGPower Supply, Ground & Circuit Ele-
mentsLMAINTENANCEMAMaintenanceMINDEXIDXAlphabetical IndexEdition: July 2003
Revision: November 2004

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-41
[ICC]
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Revision: 2004 November 2004 FX35/FX45
DTC 11 CONTROL UNITAKS006YX
1. DIAGNOSTIC CHECK
1. Are any items other than “DTC 11 CONTROL UNIT” indicated 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. Erase DTC and perform ICC system running test. Then perform self-diagnosis
of ICC system again.
DTC 20 CAN COMM CIRCUITAKS006YY
1. CHECK CAN COMMUNICATION
With CONSULT-II
1. Perform self-diagnosis.
2. Print self-diagnostic result.
>> After printing self-diagnostic result, go to “CAN system”. Refer to LAN-4, "
Precautions When
Using CONSULT-II" .
90 STOP LAMP RLY FIX×× ×
Normally open terminal of stop
lamp relay is stuck.ACS-50
92 ECM CIRCUIT××××

ECM malfunction

Accelerator pedal position sensor
malfunction

ICC unit malfunctionACS-54
96 NP RANGE×××

Park/neutral position switch har-
ness is open or shorted.

Park/neutral position switch mal-
function.

TCM malfunctionACS-55
97 AT CIRCUIT×××
TCM malfunctionACS-56
98 GEAR POSITION×××

TCM malfunction

AT turbine revolution sensor mal-
function

AT vehicle speed sensor mal-
functionACS-56
102 RADAR STAIN×× ×
ICC sensor body window has
contamination.ACS-57
103 LASER SENSOR FAIL×× ×
ICC sensor internal malfunctionACS-58
104 LASER AIMING INCMP×× ×
Laser beam aiming of ICC sensor
is not adjusted.ACS-58
107 LASER COMM FAIL×× ×

CAN data received by ICC sen-
sor is strange (from ICC unit,
combination meter or ECM).ACS-58
109 LASER HIGH TEMP×× ×
Temperature around ICC sensor
is excessively high.ACS-58
DTC
No.CONSULT-II screen termsICC sys-
tem
warning
lampFail-safe
Malfunctions detected where...Refer-
ence
page Vehicle-
to-vehi-
cle dis-
tance
control
modeConven-
tional
(fixed
speed)
cruise
control
modeBrake
assist
(with pre-
view
function)

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-57
[ICC]
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Revision: 2004 November 2004 FX35/FX45
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. Erase DTC and perform self-diagnosis 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
With CONSULT-II

With TCM diagnosis, check that turbine rpm is normal. Refer to AT- 1 4 3 , "DTC P1716 TURBINE REVOLU-
TION SENSOR" .
OK or NG
OK >> Replace ICC unit. Erase DTC and perform self-diagnosis of ICC system again.
NG >>

Perform TCM diagnosis.

After repair, erase DTC and perform self-diagnosis of ICC system again.
DTC 102 RADAR STAINAKS006ZI
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 >>

If any, remove them.

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

After that, erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC
system again.
3. ASKING COMPLAINTS
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
tended to be fogged.)
Ye s o r N o
Yes >> Explain difference in displays between contamination detection result and current indication to
customer, and tell them “This is not malfunction”.
No >>

Replace ICC sensor, and adjust laser beam aiming.

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

TROUBLE DIAGNOSIS FOR SYMPTOMS
ACS-63
[ICC]
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Revision: 2004 November 2004 FX35/FX45
2. CAN COMMUNICATION INSPECTION
With CONSULT-II
1. With CONSULT-II self-diagnosis, check that “CAN COMM CIRCUIT” item exists.
OK or NG
OK >> Refer to ACS-41, "DTC 20 CAN COMM CIRCUIT" .
NG >> After replacing combination meter, erase DTC. Perform ICC system running test, and then per-
form self-diagnosis of ICC system again.
Symptom 6: Driving Force Is Hunting.AKS006ZU
1. CHECK ECM
1. Perform self-diagnosis of ECM.
OK or NG
OK >> Refer toACS-63, "Symptom 7: The ICC System Frequently Cannot Detect the Vehicle Ahead/The
Detection Zone Is Short." .
NG >> After repairing applicable parts, erase DTC. Perform ICC system running test, and then perform
self-diagnosis of ICC system again.
Symptom 7: The ICC System Frequently Cannot Detect the Vehicle Ahead/The
Detection Zone Is Short.
AKS006ZV
The detection function may become unstable in the following cases:

When the reflector of the vehicle ahead is deficient/ not clean enough to reflect the radar.

When driving a road with extremely sharp corners.

When the radar cannot detect the reflector of the vehicle ahead as the vehicle ahead 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 foreign materials are found, remove them. Then perform ICC system run-
ning test.
NG >> GO TO 2.
2. CHECK FUNCTION
1. After adjusting ICC sensor beam aiming, perform ICC system running test. Check that preceding vehicle
detection performance has been improved.
OK or NG
OK >> INSPECTION END
NG >>

Replace ICC sensor, and perform laser beam aiming adjustment.

After performing above. Perform ICC system running test, and then perform self-diagnosis of
ICC system again.
Symptom 8: The System Does Not Detect the Vehicle Ahead at All.AKS006ZW
1. VISUAL CHECK
1. With ignition switch turned ON (engine not started), check that all indicator lamps in ICC system display
are continuously lit. (Check for a missing segment in preceding vehicle detection display.)
OK or NG
OK >> GO TO 2.
NG >> Check for combination meter. Refer to DI-13, "
How to Proceed With Trouble Diagnosis" in DI.

ACS-64
[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2004 November 2004 FX35/FX45
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. Perform ICC system running
test.
NG >> GO TO 3.
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 beam aiming adjustment.

After performing above. Perform ICC system running test, and then perform self-diagnosis of
ICC system again.
4. ADJUST ICC SENSOR
1. After adjusting ICC sensor beam aiming, perform ICC system running test. Check that preceding vehicle
detection performance has been improved.
OK or NG
OK >> INSPECTION END
NG >>

Replace ICC sensor, and perform laser beam aiming adjustment.

After performing above. Perform ICC system running test, and then perform self-diagnosis of
ICC system again.

AT-8
PRECAUTIONS
Revision: 2004 November 2004 FX35/FX45
Precautions ACS002L6

Before connecting or disconnecting the A/T assembly har-
ness connector, turn ignition switch “OFF” and disconnect
the battery cable from the negative terminal. Because bat-
tery voltage is applied to TCM even if ignition switch is
turned “OFF”.

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”.

Always use the specified brand of ATF. Refer to MA-12, "Fluids and Lubricants" .

Use paper rags not cloth rags during work.

After replacing the ATF, dispose of the waste oil using the methods prescribed by law, ordinance, etc.

Before proceeding with disassembly, thoroughly clean the outside of the transmission. It is important to
prevent 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 transmission.

Place disassembled parts in order for easier and proper assembly.

All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.

Gaskets, seals and O-rings should be replaced any time the transmission 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 bores in valve body under their own weight.

Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, or hold bearings and washers in place during assembly. Do not use grease.

Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.

After overhaul, refill the transmission with new ATF.

When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will 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- 1 2 , "
Changing A/T Fluid" , AT- 1 2 , "Checking A/T Fluid" .
SEF289H
SEF217U

AT-234
SHIFT CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
REMOVAL
1. Disconnect lower lever of control device and control rod.
2. Remove knob cover below selector lever downward.
3. Pull lock pin out of selector lever knob.
4. Remove selector lever knob.
5. Remove console finisher.

Refer to IP-10, "Component Parts Drawing" .
6. Remove center console.

Refer to IP-10, "Component Parts Drawing" .
7. Remove key interlock cable from control device.

Refer to AT- 2 4 0 , "Removal and Installation" .
8. Disconnect A/T device harness connector.
9. Remove control device assembly.
INSTALLATION
Install in reverse order of removal. Be careful of the following:

After installation is completed, adjust and check A/T position.
Adjustment of A/T PositionACS002RR
1. Loosen nut of control rod.
2. Place PNP switch and selector lever in “P” position.
3. While pressing lower lever toward rear of vehicle (in P position
direction), tighten nut to specified torque.
CAUTION:
Do not push the bracket.
Checking of A/T PositionACS002RS
1. Place selector lever in “P” position, and turn ignition switch ON (Do not start engine).
2. Make sure selector lever can be shifted to other than “P” position when brake pedal is depressed. Also
make sure selector lever can be shifted from “P” position only when brake pedal is depressed.
3. Move the selector lever and check for excessive effort, sticking, noise or rattle.
4. Confirm the selector lever stops at each position with the feel of engagement when it is moved through all
the positions. Check whether or not the actual position the selector lever is in matches the position shown
by the shift position indicator and the transmission body.
5. The method of operating the lever to individual positions cor-
rectly should be as shown in the figure.
6. When selector button is pressed in “P”, “R”, or “N” position with-
out applying forward/backward force to selector lever, check but-
ton operation for sticking.
7. Confirm the back-up lamps illuminate only when lever is placed
in the “R” position. Confirm the back-up lamps does not illumi-
nate when selector lever is pushed against “R” position in the
“P” or “N” position.
8. Confirm the engine can only be started with the selector lever in
the “P” and “N” positions.
9. Make sure transmission is locked completely in “P” position.
10. When selector lever is set to manual shift gate, make sure manual mode is displayed on combination
meter.
Shift selector lever to “+” and “-” sides, and make sure set shift position changes.
SCIA4954E
:26 N·m (2.7 kg-m, 19 ft-lb)
SCIA2119E
SCIA3906E

TRANSMISSION ASSEMBLY
AT-271
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Revision: 2004 November 2004 FX35/FX45
11. Remove crankshaft position sensor (POS) from A/T assembly.
CAUTION:

Do not subject it to impact by dropping or hitting it.

Do not disassemble.

Do not allow metal filings, etc. to get on the sensor's front
edge magnetic area.

Do not place in an area affected by magnetism.
12. Remove starter motor. Refer to SC-19, "
VQ35DE ENGINE
MODELS (AWD)" or SC-17, "VK45DE ENGINE MODELS" .
13. Disconnect fluid cooler tube from transmission assembly.
14. Remove rear plate from converter housing part. Refer to EM-30,
"Removal and Installation" (for VQ35DE models) or EM-181,
"Removal and Installation" (for VK45DE models).
15. Turn crankshaft, and remove the four tightening bolts for drive
plate and torque converter.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
16. Remove dynamic damper (for VQ35DE models). Refer to TF-
44, "Components" .
17. Support transmission assembly and transfer with a transmission
jack.
CAUTION:
When setting the transmission jack, be careful not to allow
it to collide against the drain plug.
18. Remove engine rear member with power tool.
19. Tilt the mission slightly to keep the clearance between body and
mission, and then disconnect air breather hose from charging
pipe. Refer to AT- 2 6 4 , "
Removal and Installation" .
20. Disconnect A/T assembly harness connector and transfer assembly harness connector.
21. Remove A/T fluid charging pipe.
22. Plug up openings such as the A/T fluid charging pipe hole, etc.
23. Remove bolts fixing transmission assembly to engine with power tool.
SCIA2011E
SCIA5326E
SCIA2010E
SCIA2202E