2005 INFINITI QX4 Factory Service Manual

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INFINITI QX4 2005  Factory Service Manual TF-122
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: October 20052005 QX56
2. CHECK TRANSFER CONTROL UNIT GROUND CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect tran

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INFINITI QX4 2005  Factory Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-123
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Revision: October 20052005 QX56
4. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER
1. Turn ignition switch “OFF”.

Page 3267 of 3419

INFINITI QX4 2005  Factory Service Manual TF-124
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: October 20052005 QX56
DIAGNOSTIC PROCEDURE
1. CONFIRM THE SYMPTOM
Confirm 4WD shift indicator lamp and 4LO indicator lamp turn on when ignition switch i

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INFINITI QX4 2005  Factory Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-125
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Revision: October 20052005 QX56
9. CHECK SYSTEM FOR ACTUATOR POSITION SWITCH
Perform trouble diagnosis for actuator position switch syst

Page 3269 of 3419

INFINITI QX4 2005  Factory Service Manual TF-126
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: October 20052005 QX56
4. CHECK SYSTEM FOR ATP SWITCH
Perform trouble diagnosis for ATP switch system. Refer to TF-113, "
AT P  S w i t c h" .
OK or NG
O

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INFINITI QX4 2005  Factory Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-127
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Revision: October 20052005 QX56
7. SYMPTOM CHECK
Check again.
OK or NG
OK >> Inspection End.
NG >> GO TO 8.
8. CHECK TRANSFER CONTROL UN

Page 3271 of 3419

INFINITI QX4 2005  Factory Service Manual TF-128
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: October 20052005 QX56
5. CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to TF-36, "
Transfer Control Unit Input/Outp

Page 3272 of 3419

INFINITI QX4 2005  Factory Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-129
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E
F
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TF
Revision: October 20052005 QX56
5. CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to TF-36, "
Transf