2004 INFINITI FX35 Service Manual

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Page 4329 of 4449

INFINITI FX35 2004 Service Manual TF-28
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2004 November 2004 FX35/FX45
1. CHECK AWD SOLENOID SIGNAL
With CONSULT-II
1. Start engine.
2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” wi

Page 4330 of 4449

INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS FOR SYSTEM
TF-29
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Revision: 2004 November 2004 FX35/FX45
4. CHECK AWD SOLENOID
1. Turn ignition switch “OFF”.
2. Disconnect transfer assembly harness co

Page 4331 of 4449

INFINITI FX35 2004 Service Manual TF-30
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2004 November 2004 FX35/FX45
3. Check resistance between transfer assembly harness connector
F43 terminals 1 and 2.
4. If NG, replace electric controlled c

Page 4332 of 4449

INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS FOR SYSTEM
TF-31
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Revision: 2004 November 2004 FX35/FX45
4. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >>INSPECTI

Page 4333 of 4449

INFINITI FX35 2004 Service Manual TF-32
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2004 November 2004 FX35/FX45
TROUBLE DIAGNOSIS FOR SYMPTOMSPFP:00007
AWD Warning Lamp Does Not Turn ON When The Ignition Switch Is Turned To
ON
ADS000TW

Page 4334 of 4449

INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-33
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Revision: 2004 November 2004 FX35/FX45
2. CHECK AWD CONTROL UNIT POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect AW

Page 4335 of 4449

INFINITI FX35 2004 Service Manual TF-34
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2004 November 2004 FX35/FX45
4. CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-19, "
AWD Control Unit Input/Output Signal

TF-34
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2004 November 2004 FX35/FX45
4. CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-19, "
AWD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >> GO TO 5.
NG >> Check AWD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
5. CHECK OUTPUT SIGNAL WITH UNIFIED METER AND A/C AMP.
With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “METER A/C AMP” with CONSULT-II.
3. Start the engine, and then make sure that “4WD W/L” display
turns from "ON" to "OFF" after several seconds.
OK or NG
OK >> GO TO 6.
NG >> Perform trouble diagnoses for combination meter. Refer
to DI-13, "
How to Proceed With Trouble Diagnosis" .
6. CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> Replace unified meter control unit assembly. Refer to DI-26, "
Disassembly and Assembly for
Combination Meter" .
Heavy Tight-corner Braking Symptom Occurs When The Vehicle Is Driven And
The Steering Wheel Is Turned Fully To Either Side After The Engine Is Started
ADS000TZ
NOTE:
Light tight-corner braking symptom may occur depending on driving conditions. This is not malfunc-
tion.
DIAGNOSTIC PROCEDURE
1. CHECK SYSTEM FOR CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to TF-21, "
SELF-DIAG RESULT MODE" .
Is the
“CAN COMM CIRCUIT [U1000]” displayed?
YES >> Perform trouble diagnoses for CAN communication line. Refer to TF-31, "CAN Communication
Line" .
NO >> GO TO 2.
2. CHECK ACCELERATOR PEDAL POSITION SIGNAL CIRCUIT
Perform self-diagnosis for ECM. Refer to EC-54, "
Emission-Related Diagnostic Information" (VQ35DE mod-
els) or EC-704, "
Emission-related Diagnostic Information" (VK45DE models).
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 3.
Monitor item Condition Display value
4WD W/LIgnition switch ON ON
Start engine (after several seconds) OFF
SDIA2065E

Page 4336 of 4449

INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-35
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Revision: 2004 November 2004 FX35/FX45
3. CHECK SYSTEM FOR AWD SOLENOID
Perform trouble diagnoses for AWD solenoid system. Refer to TF-27

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