Nissan Qashqai J11. Manual - part 786

DLN-60

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TY21C]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000010755283

1.

CHECK 4WD CONTROL UNIT POWER SUPPLY (1)

1.

Turn the ignition switch OFF.

2.

Disconnect 4WD control unit harness connector.

3.

Check the voltage between 4WD control unit harness connector and ground.

4.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

5.

Check the voltage between 4WD control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK 4WD CONTROL UNIT POWER SUPPLY (2)

1.

Turn the ignition switch OFF.

2.

Check the 10A fuse (#30).

3.

Disconnect fuse block (J/B) harness connector.

4.

Check the continuity between 4WD control unit harness connector and fuse block (J/B) harness connec-
tor.

5.

Check the continuity between 4WD control unit harness connector and the ground.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for ignition power supply circuit. Refer to 

PG-56, "Wiring Diagram -

IGNITION POWER SUPPLY -"

.

NO

>> Repair or replace error-detected parts.

3.

CHECK 4WD CONTROL UNIT POWER SUPPLY (3)

1.

Turn the ignition switch OFF.

2.

Check the voltage between 4WD control unit harness connector and ground.

3.

Turn the ignition switch ON.

4WD control unit

—

Voltage (Approx.)

Connector

Terminal

B5

7

Ground

0 V

4WD control unit

—

Voltage 

Connector

Terminal

B5

7

Ground

Battery voltage

4WD control unit

Fuse block (J/B)

Continuity

Connector

Terminal

Connector

Terminal

B5

7

M3

7C

Existed

4WD control unit

—

Continuity

Connector

Terminal

B5

7

Ground

Not existed

4WD control unit

—

Voltage (Approx.)

Connector

Terminal

B5

15

Ground

Battery voltage

POWER SUPPLY AND GROUND CIRCUIT

DLN-61

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TY21C]

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CAUTION:

Never start the engine.

4.

Check the voltage between 4WD control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK 4WD CONTROL UNIT POWER SUPPLY (4)

1.

Turn the ignition switch OFF.

2.

Check the 5A fuse (#2).

3.

Disconnect fuse block (J/B) harness connector.

4.

Check the continuity between 4WD control unit harness connector and fuse block (J/B) harness connec-
tor.

5.

Check the continuity between 4WD control unit harness connector and the ground.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit. Refer to 

PG-11, "Wiring Diagram - BAT-

TERY POWER SUPPLY -"

.

NO

>> Repair or replace error-detected parts.

5.

CHECK 4WD SOLENOID POWER SUPPLY (1)

1.

Turn the ignition switch OFF.

2.

Check the voltage between 4WD control unit harness connector and ground.

3.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

4.

Check the voltage between 4WD control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 6.

6.

CHECK 4WD SOLENOID POWER SUPPLY (2)

1.

Turn the ignition switch OFF.

4WD control unit

—

Voltage 

Connector

Terminal

B5

15

Ground

Battery voltage

4WD control unit

Fuse block (J/B)

Continuity

Connector

Terminal

Connector

Terminal

B5

15

B107

6H

Existed

4WD control unit

—

Continuity

Connector

Terminal

B5

15

Ground

Not existed

4WD control unit

—

Voltage

Connector

Terminal

B5

9

Ground

Battery voltage

4WD control unit

—

Voltage

Connector

Terminal

B5

9

Ground

Battery voltage

DLN-62

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TY21C]

POWER SUPPLY AND GROUND CIRCUIT

2.

Check the 10A fuse (#6).

3.

Disconnect fuse block (J/B) harness connector.

4.

Check the continuity between 4WD control unit harness connector and fuse block (J/B) harness connec-
tor.

5.

Check the continuity between 4WD control unit harness connector and the ground.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit. Refer to 

PG-11, "Wiring Diagram - BAT-

TERY POWER SUPPLY -"

.

NO

>> Repair or replace error-detected parts.

7.

CHECK 4WD CONTROL UNIT GROUND

1.

Turn the ignition switch OFF.

2.

Check the continuity between 4WD control unit harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace error-detected parts.

4WD control unit

Fuse block (J/B)

Continuity

Connector

Terminal

Connector

Terminal

B5

9

M2

15B

Existed

4WD control unit

—

Continuity

Connector

Terminal

B5

9

Ground

Not existed

4WD control unit

—

Continuity

Connector

Terminal

B5

10

Ground

Existed

11

4WD INDICATOR LAMP

DLN-63

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TY21C]

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4WD INDICATOR LAMP

Component Function Check

INFOID:0000000010755284

1.

4WD INDICATOR LAMP OPERATION CHECK

Check that 4WD indicator lamp turns ON for several seconds after the ignition switch is turned ON.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

DLN-63, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010755285

1.

PERFORM SELF-DIAGNOSIS

With CONSULT

Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is any DTC detected?

YES

>> Perform trouble diagnosis for detected DTC. Refer to 

DLN-26, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK 4WD MODE SWITCH

Perform the trouble diagnosis for 4WD mode switch. Refer to 

DLN-43, "Diagnosis Procedure"

.

Is the inspection results normal?

YES

>> GO TO 3.

NO

>> Repair or replace the error-detected parts.

3.

CHECK 4WD INDICATOR LAMP SIGNAL

With CONSULT

1.

Start the engine.

CAUTION:

Stop the vehicle.

2.

Change 4WD mode switch from "2WD” to “AUTO”.

3.

Check “4WD MODE MON” in “DATA MONITOR” for “ALL MODE AWD/4WD”.

Does the item on “DATA MONITOR” indicate “AUTO”?

YES

>> Perform the trouble diagnosis for combination meter power supply and ground circuit. Refer to

MWI-61, "COMBINATION METER : Diagnosis Procedure"

.

NO

>> Replace 4WD control unit. Refer to 

DLN-72, "Removal and Installation"

.