2005 INFINITI FX35 Service Manual

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Page 4665 of 4731

INFINITI FX35 2005 Service Manual TF-32
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2005 July 2005 FX
4. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >> INSPECTION END
NG >> Replace AWD control

Page 4666 of 4731

INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS TF-33
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Revision: 2005 July 2005 FX
TROUBLE DIAGNOSIS FOR SYMPTOMSPFP:00007
AWD Warning Lamp Does Not Turn ON When The Ignition Swit

Page 4667 of 4731

INFINITI FX35 2005 Service Manual TF-34
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2005 July 2005 FX
2. CHECK AWD CONTROL UNIT POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect AWD control unit harness connector.
3

Page 4668 of 4731

INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS TF-35
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Revision: 2005 July 2005 FX
4. CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-20, "
AWD C

TROUBLE DIAGNOSIS FOR SYMPTOMS TF-35
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Revision: 2005 July 2005 FX
4. CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-20, "
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 diagnosis for combination meter. Refer to DI-15, "
Trouble Diagnosis" .
6. SYMPTOM CHECK
Check again.
OK or NG
OK >> INSPECTION END
NG >> Replace unified meter control unit assembly. Refer to DI-26, "
Disassembly and Assembly of Com-
bination 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-22, "
SELF-DIAG RESULT MODE" .
Is the
“CAN COMM CIRCUIT [U1000]” displayed?
YES >> Perform trouble diagnosis for CAN communication line. Refer to TF-32, "CAN Communication
Line" .
NO >> GO TO 2.
2. CHECK ACCELERATOR PEDAL POSITION SIGNAL CIRCUIT
Perform self-diagnosis for ECM. Refer to EC-55, "
Emission-Related Diagnostic Information" (VQ35DE mod-
els) or EC-746, "
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/L Ignition switch ON ON
Start engine (after several seconds) OFF
SDIA2065E

Page 4669 of 4731

INFINITI FX35 2005 Service Manual TF-36
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2005 July 2005 FX
3. CHECK SYSTEM FOR AWD SOLENOID
Perform trouble diagnosis for AWD solenoid system. Refer to TF-28, "
AWD Solenoid" .
OK or NG
OK >

Page 4670 of 4731

INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS TF-37
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Revision: 2005 July 2005 FX
3. SYMPTOM CHECK
Check again.
OK or NG
OK >> INSPECTION END
NG >> Replace electric controlle

Page 4671 of 4731

INFINITI FX35 2005 Service Manual TF-38
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2005 July 2005 FX
3. CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-20, "
AWD Control Unit Input/Output Signal Referen

Page 4672 of 4731

INFINITI FX35 2005 Service Manual AWD CONTROL UNIT TF-39
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Revision: 2005 July 2005 FX
AWD CONTROL UNITPFP:41650
Removal and InstallationADS000U3
REMOVAL
1. Remove the dash side finisher. Refer to

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