Nissan Qashqai J11. Manual - part 802

DLN-124

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: TY30A]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

Description

INFOID:0000000010288298

Supplies power to AWD control unit.

Diagnosis Procedure

INFOID:0000000010288299

1.

CHECK AWD CONTROL UNIT POWER SUPPLY

1.

Turn the ignition switch OFF.

2.

Disconnect AWD control unit harness connector.

3.

Check the voltage between AWD control unit harness connector and ground.

4.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

5.

Check the voltage between AWD control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>>

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

• 10A fuse (#4) open
- Short among 10A fuse (#4) connector, AWD control unit harness connector No. 7 terminal and

the ground

- Open between the ignition switch and AWD control unit harness connector No. 7 terminal
• Ignition switch. Refer to 

DLN-124, "Diagnosis Procedure"

.

2.

CHECK AWD SOLENOID POWER SUPPLY

1.

Turn the ignition switch OFF.

2.

Check the voltage between AWD control unit harness connector and ground.

3.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

4.

Check the voltage between AWD control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>>

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

• 10A fuse (#28) open
- Short among 10A fuse (#28) connector, AWD control unit harness connector No. 9 terminal and

the ground

AWD control unit

Ground

Voltage (Approx.)

Connector

Terminal

B1

7

Ground

0 V

AWD control unit

Ground

Voltage (Approx.)

Connector

Terminal

B1

7

Ground

Battery voltage

AWD control unit

Ground

Voltage (Approx.)

Connector

Terminal

B1

9

Ground

Battery voltage

AWD control unit

Ground

Voltage (Approx.)

Connector

Terminal

B1

9

Ground

Battery voltage

POWER SUPPLY AND GROUND CIRCUIT

DLN-125

< DTC/CIRCUIT DIAGNOSIS >

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- Open between the battery and AWD control unit harness connector No. 9 terminal

3.

CHECK AWD SOLENOID VALVE GROUND

1.

Turn the ignition switch OFF.

2.

Check the continuity between AWD control unit harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace damaged parts.

AWD control unit

Ground

Continuity

Connector

Terminal

B1

10

Ground

Existed

11

DLN-126

< DTC/CIRCUIT DIAGNOSIS >

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AWD WARNING LAMP

AWD WARNING LAMP

Description

INFOID:0000000010288300

• Turns ON when there is a malfunction in AWD system. It indicates that fail-safe mode is engaged and vehi-

cle change to front-wheel drive or shifting driving force-AWD (rear wheels still have some driving torque).

• Also turns ON when ignition switch is turned ON, for purpose of lamp check. Turns OFF after the engine

starts if system is normal.

AWD WARNING LAMP INDICATION

CAUTION:

AWD warning lamp also turns ON due to data reception error, CAN communication error etc.

Diagnosis Procedure

INFOID:0000000010288301

1.

CHECK POWER SUPPLY AND GROUND CIRCUIT 

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

DLN-124, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning part.

2.

PERFORM SELF-DIAGNOSIS

With CONSULT

Perform AWD control unit self-diagnosis.
Is DTC “U1000” detected?

YES

>> CAN specification chart. Refer to 

LAN-24, "Trouble Diagnosis Flow Chart"

.

NO

>> GO TO 3.

3.

CHECK AWD WARNING LAMP SIGNAL

With CONSULT

1.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

2.

Check “AWD WARN LAMP” of AWD control unit CONSULT “DATA MONITOR”.

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

YES

>> GO TO 4.

NO

>> Replace AWD control unit. Refer to 

DLN-153, "Exploded View"

.

4.

CHECK COMBINATION METER POWER SUPPLY CIRCUIT

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

MWI-61, "COMBINATION

METER : Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace the malfunctioning part.

Condition

AWD warning lamp

Lamp check

Turns ON when ignition switch is turned ON. Turns OFF after 

engine start.

AWD system malfunction

ON

Protection function is activated due to heavy load to electric controlled 
coupling. (AWD system is not malfunctioning and AWD system chang-
es to 2WD mode.)

Quick blinking: 2 times/second

 (Blinking in approx. 1 minute and then turning OFF)

Large difference in diameter of front/rear tires

Slow blinking: 1 time/2 seconds

(Continuing to blink until turning ignition switch OFF)

Other than above (system normal)

OFF

AWD MODE INDICATOR LAMP (AWD)

DLN-127

< DTC/CIRCUIT DIAGNOSIS >

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AWD MODE INDICATOR LAMP (AWD)

Description

INFOID:0000000010288302

The following is the indications of indicator lamp after engine start.

AWD INDICATOR LAMP AND LOCK INDICATOR LAMP

Diagnosis Procedure

INFOID:0000000010288303

1.

CHECK AWD WARNING LAMP

Start engine and drive at 30 km/h (19 MPH) or more for approx. 1 minute.

Does AWD warning lamp turn ON?

YES

>> Go to 

DLN-126, "Diagnosis Procedure"

.

NO

>> GO TO 2.

2.

CHECK AWD MODE SWITCH

Perform the trouble diagnosis for AWD mode switch. Refer to 

DLN-116, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace the malfunctioning part.

3.

CHECK AWD INDICATOR LAMP SIGNAL

With CONSULT

1.

Start the engine.

CAUTION:

Stop the vehicle.

2.

Change AWD mode switch in “AUTO” from “2WD”.

3.

Check “AWD MODE MON” of AWD control unit CONSULT “DATA MONITOR”.

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

YES

>> GO TO 4.

NO

>> Replace AWD control unit. Refer to 

DLN-153, "Exploded View"

.

4.

CHECK COMBINATION METER POWER SUPPLY CIRCUIT

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

MWI-61, "COMBINATION

METER : Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace the malfunctioning part.

Condition

AWD indicator lamp

LOCK indicator lamp

2WD mode

OFF

OFF

AUTO mode

ON

OFF

LOCK mode

ON

ON