Nissan Titan A60. Manual - part 284

4WD SHIFT INDICATOR LAMP OR 4LO INDICATOR LAMP DO NOT CHANGE

DLN-75

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

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4WD SHIFT INDICATOR LAMP OR 4LO INDICATOR LAMP DO NOT
CHANGE

Description

INFOID:0000000006179483

4WD shift indicator lamp or 4LO indicator lamp do not change when switching the 4WD shift switch.

Diagnosis Procedure

INFOID:0000000006179484

1.

CONFIRM THE SYMPTOM

Confirm 4WD shift indicator lamp and 4LO indicator lamp when ignition switch is turned to ON.
Do 4WD shift indicator lamp and 4LO indicator lamp turn on?

YES

>> GO TO 2.

NO

>> Go to 

DLN-71, "Diagnosis Procedure"

.

2.

CHECK SYSTEM FOR STOP LAMP SWITCH

Perform trouble diagnosis for stop lamp switch system. Refer to 

BRC-45, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK SYSTEM FOR 4WD SHIFT SWITCH

Perform trouble diagnosis for 4WD shift switch system. Refer to 

DLN-30, "Description"

.

Are the inspection results normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK SYSTEM FOR WAIT DETECTION SWITCH

Perform trouble diagnosis for wait detection switch system. Refer to 

DLN-36, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

CHECK SYSTEM FOR 4LO SWITCH

Perform trouble diagnosis for 4LO switch system. Refer to 

DLN-27, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 6.

NO

>> Repair or replace damaged parts.

6.

CHECK SYSTEM FOR ATP SWITCH

Perform trouble diagnosis for ATP switch system. Refer to 

DLN-81, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 7.

NO

>> Repair or replace damaged parts.

7.

SYMPTOM CHECK

Check again.
Does the symptom still occur?

YES

>> GO TO 8.

NO

>> Inspection End

8.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

DLN-55, "Reference Value"

.

Are the inspection results normal?

YES

>> GO TO 9.

DLN-76

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4WD SHIFT INDICATOR LAMP OR 4LO INDICATOR LAMP DO NOT CHANGE

NO

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

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

9.

CHECK TRANSFER INNER PARTS

1. Disassemble transfer assembly. Refer to 

DLN-103, "Disassembly and Assembly"

.

2. Check transfer inner parts.
Are the inspection results normal?

YES

>> Inspection End.

NO

>> Repair or replace damaged parts.

ATP WARNING LAMP DOES NOT TURN ON

DLN-77

< SYMPTOM DIAGNOSIS >

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ATP WARNING LAMP DOES NOT TURN ON

Description

INFOID:0000000006179485

ATP warning lamp does not turn ON when the transfer case is switched in or out of 4LO with the A/T selector

lever in N position.

Diagnosis Procedure

INFOID:0000000006179486

Regarding Wiring Diagram information, refer to 

DLN-62, "Wiring Diagram"

.

1.

CHECK SYSTEM FOR CAN COMMUNICATION LINE

Perform self-diagnosis. Refer to 

DLN-16, "CONSULT-III Function (ALL MODE AWD/4WD)"

.

Do the self-diagnostic results indicate CAN communication?

YES

>> Perform trouble diagnosis for CAN communication line. Refer to 

DLN-13, "CAN Communication"

.

NO

>> GO TO 2.

2.

CHECK SYSTEM FOR 4WD SHIFT SWITCH

Perform trouble diagnosis for 4WD shift switch system. Refer to 

DLN-30, "Diagnosis Procedure (With 3 Con-

trol Dial System Without Auto A/C)"

.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

3.

CHECK SYSTEM FOR TRANSMISSION RANGE SWITCH SIGNAL

Perform trouble diagnosis for transmission range switch signal system. Refer to 

TM-50, "Diagnosis Proce-

dure"

.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace damaged parts.

4.

CHECK SYSTEM FOR ATP SWITCH

Perform trouble diagnosis for ATP switch system. Refer to 

DLN-81, "Diagnosis Procedure"

.

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace damaged parts.

5.

CHECK ATP WARNING LAMP CIRCUIT

1. Disconnect ATP switch harness connector.

2. Turn ignition switch ON. (Do not start engine.)

3. Ground the following terminal using suitable wiring.

-

ATP switch harness connector F55 terminal 8 and ground.

4. Turn ignition switch OFF.  (Stay for at least 5 seconds.)
Does ATP warning lamp turn on?

OK 

>> GO TO 9.

NG

>> GO TO 6.

6.

CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER

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

2. Disconnect transfer control unit harness connector and combination meter harness connector.

SDIA2832E

DLN-78

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

ATP WARNING LAMP DOES NOT TURN ON

3. Check continuity between transfer control unit harness connec-

tor E143 terminal 39 and combination meter harness connector

M24 terminal 6.

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

OK or NG

OK 

>> GO TO 7.

NG

>> Repair or replace damaged parts.

7.

CHECK HARNESS BETWEEN COMBINATION METER AND ATP SWITCH

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

2. Disconnect ATP switch harness connector.

3. Check continuity between combination meter harness connector

M24 terminal 7 and ATP switch harness connector F55 terminal

8.

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

OK or NG

OK 

>> GO TO 8.

NG

>> Repair or replace damaged parts.

8.

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 9.

NG

>> Replace the combination meter. Refer to 

MWI-93, "Removal and Installation"

.

9.

SYMPTOM CHECK

Check again.
OK or NG

OK

>> Inspection End.

NG

>> GO TO 10.

10.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

DLN-55, "Reference Value"

.

OK or NG

OK

>> GO TO 11.

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.

11.

CHECK TRANSFER INNER PARTS

1. Disassemble transfer assembly. Refer to 

DLN-103, "Disassembly and Assembly"

.

2. Check transfer inner parts.
OK or NG

OK

>> Inspection End.

NG

>> Repair or replace damaged parts.

Continuity should exist.

PDIA0301E

Continuity should exist.

SDIA2398E