Nissan Titan A60. Manual - part 283

4WD WARNING LAMP DOES NOT TURN ON

DLN-71

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

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4WD WARNING LAMP DOES NOT TURN ON

Description

INFOID:0000000006179479

4WD warning lamp does not turn ON when turning ignition switch to ON.

Diagnosis Procedure

INFOID:0000000006179480

Regarding Wiring Diagram information, refer to 

DLN-62, "Wiring Diagram"

.

1.

CHECK TRANSFER CONTROL UNIT POWER SUPPLY AND GROUND

Check transfer control unit power supply and ground circuits.  Refer to 

DLN-20, "Diagnosis Procedure"

.

OK or NG

OK

>> GO TO 2.

NG

>> Repair as necessary.

2.

CHECK COMBINATION METER POWER SUPPLY AND GROUND

Check combination meter power supply and ground circuits.  Refer to 

MWI-33, "COMBINATION METER :

Diagnosis Procedure"

.

OK or NG

OK 

>> GO TO 3.

NG

>> Repair as necessary.

3.

CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER

1. Turn ignition switch OFF.  (Stay for at least 5 seconds.)

2. Check continuity between transfer control unit harness connec-

tor E143 terminal 38 and combination meter harness connector

M24 terminal 34.

Also check harness for short to ground and short to power.

OK or NG

OK 

>> GO TO 4.

NG

>> Repair or replace damaged parts.

4.

CHECK COMBINATION METER

1. Turn ignition switch OFF.  (Stay for at least 5 seconds.)

2. Check the combination meter. Refer to 

MWI-28, "CONSULT-III Function (METER/M&A)"

.

OK or NG

OK

>> GO TO 5.

NG

>> Replace the combination meter. Refer to 

MWI-93, "Removal and Installation"

.

5.

SYMPTOM CHECK

Check again.
OK or NG

OK

>> Inspection End.

NG

>> GO TO 6.

6.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

DLN-55, "Reference Value"

.

OK or NG

OK

>> Inspection End.

Continuity should exist.

PDIA0230E

DLN-72

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

4WD WARNING LAMP DOES NOT TURN ON

NG

>> Check transfer control unit pin terminals for damage or loose connection with harness connector.

If any items are damaged, repair or replace damaged parts.

4WD SHIFT INDICATOR LAMP AND 4LO INDICATOR LAMP DO NOT TURN ON

DLN-73

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

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4WD SHIFT INDICATOR LAMP AND 4LO INDICATOR LAMP DO NOT
TURN ON

Description

INFOID:0000000006179481

4WD shift indicator lamp and 4LO indicator lamp do not turn ON for approx. 1 second when turning ignition

switch to ON.

Diagnosis Procedure

INFOID:0000000006179482

Regarding Wiring Diagram information, refer to 

DLN-62, "Wiring Diagram"

.

1.

CHECK TRANSFER CONTROL UNIT POWER SUPPLY AND GROUND

Check transfer control unit power supply and ground circuits.  Refer to 

DLN-20, "Diagnosis Procedure"

.

OK or NG

OK

>> GO TO 2.

NG

>> Repair as necessary.

2.

CHECK COMBINATION METER POWER SUPPLY AND GROUND

Check combination meter power supply and ground circuits.  Refer to 

MWI-33, "COMBINATION METER :

Diagnosis Procedure"

.

OK or NG

OK 

>> GO TO 3.

NG

>> Repair as necessary.

3.

CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER

1. Turn ignition switch OFF.  (Stay for at least 5 seconds.)

2. Check continuity between the following terminals.

-

Transfer control unit harness connector E143 terminal 35 and

combination meter harness connector M24 terminal 32.

-

Transfer control unit harness connector E143 terminal 36 and

combination meter harness connector M24 terminal 31.

-

Transfer control unit harness connector E143 terminal 37 and

combination meter harness connector M24 terminal 33.

Also check harness for short to ground and short to power.

OK or NG

OK 

>> GO TO 4.

NG

>> Repair or replace damaged parts.

4.

CHECK COMBINATION METER

1. Turn ignition switch OFF.  (Stay for at least 5 seconds.)

2. Check the combination meter. Refer to 

MWI-28, "CONSULT-III Function (METER/M&A)"

.

OK or NG

OK

>> GO TO 5.

NG

>> Replace the combination meter. Refer to 

MWI-93, "Removal and Installation"

.

5.

SYMPTOM CHECK

Check again.
OK or NG

OK

>> Inspection End.

NG

>> GO TO 6.

6.

CHECK TRANSFER CONTROL UNIT

Continuity should exist.

PDIA0229E

DLN-74

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

4WD SHIFT INDICATOR LAMP AND 4LO INDICATOR LAMP DO NOT TURN ON

Check transfer control unit input/output signal. Refer to 

DLN-55, "Reference Value"

.

OK or NG

OK

>> Inspection End.

NG

>> Check transfer control unit pin terminals for damage or loose connection with harness connector.

If any items are damaged, repair or replace damaged parts.