Nissan Pathfinder (2008 year). Manual - part 208

DLN-248

< SYMPTOM DIAGNOSIS >

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4WD SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

4WD SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000001500077

Symptom

Condition

Reference page

4WD shift indicator lamp and 4LO indicator lamp do not turn ON (lamp check)

Ignition switch: ON

DLN-251

4WD warning lamp does not turn ON (lamp check)

DLN-249

4WD shift indicator lamp or 4LO indicator lamp does not change

Engine running

DLN-253

ATP warning lamp does not turn ON

DLN-255

ATP switch is malfunctioning

DLN-259

4WD shift indicator lamp repeats flashing

While driving

DLN-257

4WD warning lamp flashes slowly (1 time/2 seconds)

DLN-258

4WD WARNING LAMP DOES NOT TURN ON

DLN-249

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4WD WARNING LAMP DOES NOT TURN ON

Description

INFOID:0000000001516570

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

Diagnosis Procedure

INFOID:0000000001500079

1.

CHECK TRANSFER CONTROL UNIT POWER SUPPLY AND GROUND CIRCUITS

Refer to 

DLN-201, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 2.

NO

>> Perform repairs as necessary.

2.

CHECK COMBINATION METER POWER SUPPLY CIRCUIT

1.

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

2.

Disconnect combination meter harness connector.

3.

Check voltage between combination meter harness connector
terminals and ground.

4.

Turn ignition switch “ON”. (Do not start engine.)

5.

Check voltage between combination meter harness connector
terminals and ground.

Are the inspection results normal?

YES 

>> GO TO 3.

NO

>>

Check the following. If any items are damaged, repair
or replace damaged parts.

• 10A fuse [No. 14, located in the fuse block (J/B)] or

ignition switch.

• Harness for short or open between ignition switch and combination meter harness connector

terminal 16

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 M153 terminal 38 and combination meter harness connector
M24 terminal 28.

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

Is there continuity?

YES 

>> GO TO 4.

NO

>> Repair or replace damaged parts.

Connector

Terminal

Voltage (Approx.)

M24

16 - Ground

0V

WDIA0178E

Connector

Terminal

Voltage (Approx.)

M24

16 - Ground

Battery voltage

WDIA0179E

Continuity should exist.

WDIA0180E

DLN-250

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4WD WARNING LAMP DOES NOT TURN ON

4.

CHECK INDICATOR LAMP CIRCUIT

1.

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

2.

Connect combination meter harness connector.

3.

Disconnect transfer control unit harness connector.

4.

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

5.

Ground the following terminal using suitable wiring.

-

Transfer control unit harness connector M153 terminal 38 and
ground.

Does the indicator lamp turn on?

YES

>> GO TO 5.

NO

>> Replace the combination meter. Refer to 

MWI-94,

"Removal and Installation"

.

5.

SYMPTOM CHECK

Check again.

Does the symptom still occur?

YES

>> GO TO 6.

NO

>> Inspection End.

6.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

DLN-232, "Reference Value"

.

Are the inspection results normal?

YES

>> Inspection End.

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.

SDIA3452E

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

DLN-251

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

Description

INFOID:0000000001516572

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:0000000001500092

1.

CHECK TRANSFER CONTROL UNIT POWER SUPPLY AND GROUND CIRCUITS

Refer to 

DLN-201, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 2.

NO

>> Perform repairs as necessary.

2.

CHECK COMBINATION METER POWER SUPPLY CIRCUIT

1.

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

2.

Disconnect combination meter harness connector.

3.

Check voltage between combination meter harness connector
terminals and ground.

4.

Turn ignition switch “ON”. (Do not start engine.)

5.

Check voltage between combination meter harness connector
terminals and ground.

Are the inspection results normal?

YES 

>> GO TO 3.

NO

>>

Check the following. If any items are damaged, repair
or replace damaged parts.

• 10A fuse [No. 14, located in the fuse block (J/B) or]

ignition switch.

• Harness for short or open between ignition switch and combination meter harness connector

terminal 16

3.

CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER

1.

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

Connector

Terminal

Voltage (Approx.)

M24

16 - Ground

0V

WDIA0178E

Connector

Terminal

Voltage (Approx.)

M24

16 - Ground

Battery voltage

WDIA0179E

DLN-252

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

2.

Check continuity between the following terminals.

-

Transfer control unit harness connector M153 terminal 35 and
combination meter harness connector M24 terminal 30.

-

Transfer control unit harness connector M153 terminal 36 and
combination meter harness connector M24 terminal 27.

-

Transfer control unit harness connector M153 terminal 37 and
combination meter harness connector M24 terminal 29.

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

Does continuity exist?

YES 

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK INDICATOR LAMP CIRCUIT

1.

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

2.

Connect combination meter harness connector.

3.

Disconnect transfer control unit harness connector.

4.

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

5.

Ground the following terminals using suitable wiring.

-

Transfer control unit harness connector M153 terminal 35 and
ground.

-

Transfer control unit harness connector M153 terminal 36 and
ground.

-

Transfer control unit harness connector M153 terminal 37 and
ground.

Do indicator lamps turn on?

YES

>> GO TO 5.

NO

>> Replace the combination meter. Refer to 

MWI-94,

"Removal and Installation"

.

5.

SYMPTOM CHECK

Check again.

Does the symptom still occur?

YES

>> GO TO 6.

NO

>> Inspection End.

6.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

DLN-232, "Reference Value"

.

Are the inspection results normal?

YES

>> Inspection End.

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.

Continuity should exist.

SDIA2823E

SDIA3451E

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

DLN-253

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

Description

INFOID:0000000001516573

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

Diagnosis Procedure

INFOID:0000000001500093

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-251, "Diagnosis Procedure"

.

2.

CHECK SYSTEM FOR 4WD SHIFT SWITCH

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

DLN-211, "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-214, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK SYSTEM FOR 4LO SWITCH

Perform trouble diagnosis for 4LO switch system. Refer to 

DLN-208, "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-259, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 6.

NO

>> Repair or replace damaged parts.

6.

SYMPTOM CHECK

Check again.
Does the symptom still occur?

YES

>> GO TO 7.

NO

>> Inspection End

7.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

DLN-232, "Reference Value"

.

Are the inspection results normal?

YES

>> GO TO 8.

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.

8.

CHECK TRANSFER INNER PARTS

1.

Disassemble transfer assembly. Refer to 

DLN-288, "Disassembly and Assembly"

.

2.

Check transfer inner parts.

Are the inspection results normal?

DLN-254

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

YES

>> Inspection End.

NO

>> Repair or replace damaged parts.

ATP WARNING LAMP DOES NOT TURN ON

DLN-255

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ATP WARNING LAMP DOES NOT TURN ON

Description

INFOID:0000000001516574

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:0000000001500094

1.

CHECK SYSTEM FOR CAN COMMUNICATION LINE

Perform self-diagnosis. Refer to 

DLN-197, "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 

LAN-64, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK SYSTEM FOR 4WD SHIFT SWITCH

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

DLN-211, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK SYSTEM FOR PNP SWITCH SIGNAL

Perform trouble diagnosis for PNP switch signal system. Refer to 

DLN-217, "Diagnosis Procedure"

.

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-259, "Diagnosis Procedure"

.

Are the inspection results normal?

YES

>> GO TO 5.

NO

>> 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 terminal 8 on ATP switch connector F55 using suitable
wiring.

4.

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

Does ATP warning lamp turn on?

YES 

>> GO TO 9.

NO

>> 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