Infiniti QX56 (JA60). Manual - part 296

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

DLN-107

< SYMPTOM DIAGNOSIS >

[ATX14B]

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

Description

INFOID:0000000005148861

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

Diagnosis Procedure

INFOID:0000000005148862

1.

CONFIRM THE SYMPTOM

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

YES

>> GO TO 2.

NO

>> Refer to 

DLN-103, "Diagnosis Procedure"

.

2.

CHECK SYSTEM FOR 4WD SHIFT SWITCH

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

DLN-32, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

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 4.

NO

>> Repair or replace damaged parts.

4.

CHECK SYSTEM FOR NEUTRAL-4LO SWITCH

Perform trouble diagnosis for neutral-4LO switch system. Refer to 

DLN-29, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

CHECK SYSTEM FOR ATP SWITCH

Perform trouble diagnosis for ATP switch system. Refer to 

DLN-116, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 6.

NO

>> Repair or replace damaged parts.

6.

CHECK SYSTEM FOR 2-4WD SOLENOID

Perform trouble diagnosis for 2-4WD solenoid system. Refer to 

DLN-58, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 7.

NO

>> Repair or replace damaged parts.

7.

CHECK SYSTEM FOR TRANSFER CONTROL DEVICE

Perform trouble diagnosis for transfer control device system. Refer to 

DLN-49, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 8.

NO

>> Repair or replace damaged parts.

8.

CHECK SYSTEM FOR ACTUATOR MOTOR

Perform trouble diagnosis for actuator motor system. Refer to 

DLN-40, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 9.

NO

>> Repair or replace damaged parts.

DLN-108

< SYMPTOM DIAGNOSIS >

[ATX14B]

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

9.

CHECK SYSTEM FOR ACTUATOR POSITION SWITCH

Perform trouble diagnosis for actuator position switch system. Refer to 

DLN-46, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 10.

NO

>> Repair or replace damaged parts.

10.

SYMPTOM CHECK

Check again. 
Are the inspection results normal?

YES

>> Inspection End.

NO

>> GO TO 11.

11.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

DLN-81, "Reference Value"

.

Are the inspection results normal?

YES

>> GO TO 12.

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.

12.

CHECK TRANSFER INNER PARTS

1. Disassemble transfer assembly. Refer to 

DLN-142, "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-109

< SYMPTOM DIAGNOSIS >

[ATX14B]

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ATP WARNING LAMP DOES NOT TURN ON

Description

INFOID:0000000005148863

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:0000000005148864

Regarding Wiring Diagram information, refer to 

DLN-89, "Wiring Diagram - ALL-MODE 4WD SYSTEM -"

.

1.

CHECK SYSTEM FOR CAN COMMUNICATION LINE

Perform self-diagnosis. Refer to 

DLN-18, "CONSULT-III Function (ALL MODE AWD/4WD)"

.

Do the self-diagnostic results indicate CAN communication?

YES

>> Perform trouble diagnosis for CAN communication line.

NO

>> GO TO 2.

2.

CHECK SYSTEM FOR 4WD SHIFT SWITCH

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

DLN-32, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK SYSTEM FOR TRANSMISSION RANGE SWITCH SIGNAL

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

DLN-39, "Diagnosis Proce-

dure"

.

Are the inspection results normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK SYSTEM FOR ATP SWITCH

Perform trouble diagnosis for ATP switch system. Refer to 

DLN-116, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

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.

3. Check continuity between the following terminals.

-

Transfer control unit harness connector E142 (B) terminal 15

and combination meter harness connector M23 (A) terminal 43.

Continuity should exist.

AWDIA0185ZZ

DLN-110

< SYMPTOM DIAGNOSIS >

[ATX14B]

ATP WARNING LAMP DOES NOT TURN ON

-

Transfer control unit harness connector E143 (B) terminal 40

and combination meter harness connector M23 (A) terminal 44.

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

Are the inspection results normal?

YES

>> GO TO 6.

NO

>> Repair or replace damaged parts.

6.

CHECK ATP WARNING LAMP CIRCUIT

1. Place A/T selector lever in P position.

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

3. Disconnect ATP switch harness connector.

4. Ground the following terminal using suitable wiring.

-

ATP switch harness connector F55 terminal 8 and ground.

5. Turn ignition switch ON. (Do not start engine.)
Does indicator lamp turn on?

YES

>> GO TO 7.

NO

>> Replace combination meter. Refer to 

MWI-100,

"Removal and Installation"

.

7.

SYMPTOM CHECK

Check again.
Are the inspection results normal?

YES

>> Inspection End.

NO

>> GO TO 8.

8.

CHECK TRANSFER CONTROL UNIT

 Check transfer control unit input/output signal. Refer to 

DLN-81, "Reference Value"

.

Are the inspection results normal?

YES

>> GO TO 9.

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-142, "Disassembly and Assembly"

.

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

YES

>> Inspection End.

NO

>> Repair or replace damaged parts.

40 to 44: Continuity should not exist.
44 to 40: Continuity should exist.

AWDIA0186ZZ

SDIA2769E