Nissan Murano Z50 (2004 year). Manual - part 218

TROUBLE DIAGNOSIS FOR SYSTEM

TF-31

C

E

F

G

H

I

J

K

L

M

A

B

TF

Revision: 2004 November

2004 Murano

4. 

CHECK AWD SOLENOID 

1.

Turn ignition switch “OFF”.

2.

Disconnect AWD solenoid valve harness connector. 

3.

Check resistance between AWD solenoid valve harness con-
nector B204 terminals 1 and 2.

OK or NG

OK

>> GO TO 5.

NG

>> AWD solenoid is malfunctioning. Replace electric con-

trolled coupling. Refer to 

RFD-19, "Disassembly and

Assembly"

 .

5. 

CHECK HARNESS BETWEEN AWD CONTROL UNIT AND AWD SOLENOID

1.

Turn ignition switch “OFF”.

2.

Disconnect AWD control unit harness connector and AWD solenoid valve harness connector.

3.

Check continuity between the following terminals.

–

AWD control unit harness connector E111 terminal 1 (LG) and
AWD solenoid valve harness connector B204 terminal 1 (LG).

–

AWD control unit harness connector E111 terminal 2 (L/W) and
AWD solenoid valve harness connector B204 terminal 2 (L/W).

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

OK or NG

OK

>> GO TO 6.

NG

>> Repair or replace damaged parts.

6. 

CHECK AWD CONTROL UNIT

Check AWD control unit input/output signal. Refer to 

TF-22, "AWD Control Unit Input/Output Signal Reference

Values"

 .

OK or NG

OK

>> GO TO 7.

NG

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

any items are damaged, repair or replace damaged parts.

7. 

CHECK DTC

Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG

OK

>> INSPECTION END

NG

>> Replace AWD control unit.

COMPONENT INSPECTION

1.

Turn ignition switch “OFF”.

2.

Disconnect AWD solenoid valve harness connector. 

1 - 2

: Approx. 2.45

Ω

SDIA2334E

1 (LG) - 1 (LG)

: Continuity should exist.

2 (L/W) - 2 (L/W)

: Continuity should exist.

SDIA2335E

TF-32

TROUBLE DIAGNOSIS FOR SYSTEM

Revision: 2004 November

2004 Murano

3.

Check resistance between AWD solenoid valve harness con-
nector B204 terminals 1 and 2.

4.

If NG, replace electric controlled coupling. Refer to 

RFD-19,

"Disassembly and Assembly"

 .

AWD Actuator Relay

ADS000WS

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Data are reference value.

DIAGNOSTIC PROCEDURE

●

Check the following if “4WD ACTUATOR RLY [C1205]” is displayed in self-diagnostic results of CON-
SULT-II.

1. 

CHECK AWD SOLENOID SYSTEM

Perform self-diagnosis. Refer to 

TF-24, "SELF-DIAG RESULT MODE"

 .

Is the “4WD SOLENOID [C1204]” displayed?

YES

>> Perform trouble diagnosis for AWD solenoid. Refer to 

TF-29, "AWD Solenoid"

 .

NO

>> GO TO 2.

2. 

CHECK AWD ACTUATOR RELAY SIGNAL

 With CONSULT-II

1.

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

2.

Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.

3.

Start engine and read out ON/OFF signal of “ETS ACTUATOR”.

OK or NG

OK >> GO 

TO 

4.

NG

>> GO TO 3.

3. 

CHECK AWD CONTROL UNIT

Check AWD control unit input/output signal. Refer to 

TF-22, "AWD Control Unit Input/Output Signal Reference

Values"

 .

OK or NG

OK

>> GO TO 4.

NG

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

any items are damaged, repair or replace damaged parts.

1 - 2

: Approx. 2.45

Ω

SDIA2334E

Monitored item

Condition

Display value

ETS ACTUATOR [ON/OFF]

Engine stopped (Ignition switch: ON)

OFF

Engine running

ON

Monitor item

Condition

Display value

ETS ACTUATOR

Engine stopped (Ignition switch: ON)

OFF

Engine running

ON

SDIA1897E

TROUBLE DIAGNOSIS FOR SYSTEM

TF-33

C

E

F

G

H

I

J

K

L

M

A

B

TF

Revision: 2004 November

2004 Murano

4. 

CHECK DTC

Perform the self-diagnosis, after driving a vehicle for a while.

OK or NG

OK

>> INSPECTION END

NG

>> Replace AWD control unit.

CAN Communication Line

ADS000WT

DIAGNOSTIC PROCEDURE

●

Check the following if “CAN COMM CIRCUIT [U1000]” is detected in self-diagnostic results of CONSULT-
II.

1. 

CHECK CAN COMMUNICATION CIRCUIT

 With CONSULT-II

1.

Turn ignition switch “ON” and start engine.

2.

Select “SELF-DIAG RESULTS” mode for “ALL MODE AWD/4WD” with in CONSULT-II.

3.

Perform the self-diagnosis.

Is the “CAN COMM CIRCUIT [U1000]” displayed?

YES

>> Go to 

LAN-6, "Precautions When Using CONSULT-II"

 .

NO

>> INSPECTION END

Engine Control Signal

ADS001G4

DIAGNOSTIC PROCEDURE

●

Check the following if “ENGINE SIGNAL 1 [C1210]” is displayed in self-diagnosis results of CONSULT-II.

1. 

CHECK DTC WITH ECM

Perform self-diagnosis with ECM. Refer to 

EC-48, "Emission-Related Diagnostic Information"

 .

Is any malfunction detected by self-diagnosis?

YES

>> Check the malfunctioning system.

NO

>> GO TO 2.

2. 

CHECK AWD CONTROL UNIT

Check AWD control unit input/output signal. Refer to 

TF-22, "AWD Control Unit Input/Output Signal Reference

Values"

 .

OK or NG

OK

>> GO TO 3.

NG

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

any item is damaged, repair or replace damaged parts.

3. 

CHECK DTC

Perform the self-diagnosis, after driving a vehicle for a while.

OK or NG

OK

>> INSPECTION END

NG

>> Perform self-diagnosis with ECM again. Refer to 

EC-48, "Emission-Related Diagnostic Informa-

tion"

 .

SDIA1850E

TF-34

TROUBLE DIAGNOSIS FOR SYSTEM

Revision: 2004 November

2004 Murano

AWD Lock Switch 

ADS000VP

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Data are reference value.

DIAGNOSTIC PROCEDURE

1. 

CHECK AWD LOCK SWITCH SIGNAL

 With CONSULT-II

1.

Turn ignition switch “ON”.

2.

Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.

3.

Read out monitor “4WD MODE SW” with operating AWD lock
switch.

OK or NG

OK >> GO 

TO 

6.

NG

>> GO TO 2.

2. 

CHECK INPUT SIGNAL WITH UNIFIED METER AND A/C AMP.

 With CONSULT-II

1.

Turn ignition switch “ON”.

2.

Select “DATA MONITOR” mode for “METER A/C AMP” with CONSULT-II.

3.

Read out monitor “4WD LOCK SW” with operating AWD lock
switch.

OK or NG

OK >> GO 

TO 

6.

NG

>> GO TO 3.

Monitored item

Condition

Display value

4WD MODE SW [AUTO/LOCK]

AWD lock switch

OFF

AUTO

ON

LOCK

Monitor item

Condition

Display value

4WD MODE SW

AWD lock switch

OFF

AUTO

ON

LOCK

SDIA1898E

Monitor item

Condition

Display value

4WD LOCK SW

AWD lock switch

OFF

OFF

ON

ON

SDIA2063E

TROUBLE DIAGNOSIS FOR SYSTEM

TF-35

C

E

F

G

H

I

J

K

L

M

A

B

TF

Revision: 2004 November

2004 Murano

3. 

CHECK AWD LOCK SWITCH CIRCUIT

1.

Turn ignition switch “OFF”.

2.

Disconnect unified meter and A/C amp. harness connector.

3.

Operate AWD lock switch and check continuity between unified
meter and A/C amp. harness connector M49 terminal 5 (BR/Y)
and ground.

 OK or NG

 OK 

>>  GO TO 6.

 NG

>>  GO TO 4.

4. 

CHECK AWD LOCK SWITCH

1.

Turn ignition switch “OFF”.

2.

Disconnect AWD lock switch harness connector. 

3.

Operate AWD lock switch and check continuity between AWD
lock switch harness connector M55 terminals 1 and 3.

OK or NG

OK

>> GO TO 5.

NG

>> Replace AWD lock switch.

5. 

CHECK HARNESS BETWEEN UNIFIED METER AND A/C AMP. AND AWD LOCK SWITCH

1.

Turn ignition switch “OFF”.

2.

Disconnect unified meter and A/C amp. harness connector and AWD lock switch harness connector.

3.

Check continuity between unified meter and A/C amp. harness
connector M49 terminal 5 (BR/Y) and AWD lock switch harness
connector M55 terminal 1 (BR/Y).

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

OK or NG

OK

>> GO TO 6.

NG

>> Repair or replace damaged parts.

6. 

CHECK AWD CONTROL UNIT

Check AWD control unit input/output signal. Refer to 

TF-22, "AWD Control Unit Input/Output Signal Reference

Values"

 .

OK or NG

OK

>> GO TO 7.

NG

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

any items are damaged, repair or replace damaged parts.

Connector

Terminal (Wire 

color)

Condition

Continuity

M49

5 (BR/Y) - 

Ground

AWD lock switch: “ON” position

Yes

AWD lock switch: “OFF” position

No

SDIA2002E

Connector

Terminal

Condition

Continuity

M55

1 - 3

AWD lock switch: “ON” position

Yes

AWD lock switch: “OFF” position

No

SDIA2003E

Continuity should exist.

SDIA2004E

TF-36

TROUBLE DIAGNOSIS FOR SYSTEM

Revision: 2004 November

2004 Murano

7. 

CHECK AWD LOCK INDICATOR LAMP

1.

Turn ignition switch “OFF”.

2.

Check AWD LOCK indicator lamp “ON” for approx. 1 second when turned ignition switch “ON”.

Does AWD LOCK indicator lamp “ON” for approx. 1 second?

YES

>> INSPECTION END

NO

>> Go to 

TF-37, "AWD LOCK Indicator Lamp Does Not Turn ON for Approx. 1 Second When The

Ignition Switch Is Turned to ON"

 .

COMPONENT INSPECTION

1.

Turn ignition switch “OFF”.

2.

Disconnect AWD lock switch harness connector. 

3.

Operate AWD lock switch and check continuity between AWD
lock switch harness connector M55 terminals 1 and 3.

4.

If NG, replace AWD lock switch.

Connector

Terminal

Condition

Continuity

M55

1 - 3

AWD lock switch: “ON” position

Yes

AWD lock switch: “OFF” position

No

SDIA2003E

TROUBLE DIAGNOSIS FOR SYMPTOMS

TF-37

C

E

F

G

H

I

J

K

L

M

A

B

TF

Revision: 2004 November

2004 Murano

TROUBLE DIAGNOSIS FOR SYMPTOMS

PFP:00007

AWD LOCK Indicator Lamp Does Not Turn ON for Approx. 1 Second When The 
Ignition Switch Is Turned to ON

ADS000VQ

DIAGNOSTIC PROCEDURE

1. 

CHECK SYSTEM FOR CAN COMMUNICATION LINE

Perform self-diagnosis. Refer to 

TF-24, "SELF-DIAG RESULT MODE"

 .

Is the “CAN COMM CIRCUIT [U1000]” displayed?

YES

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

TF-33, "CAN Communication

Line"

 .

NO

>> GO TO 2.

2. 

CHECK AWD CONTROL UNIT POWER SUPPLY CIRCUIT

1.

Turn ignition switch “OFF”.

2.

Disconnect AWD control unit harness connector.

3.

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

4.

Check voltage between AWD control unit harness connector ter-
minals and ground.

5.

Turn ignition switch “OFF”.

6.

Check voltage between AWD control unit harness connector ter-
minals and ground.

OK or NG

OK

>> GO TO 3.

NG

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

replace damaged parts.

●

10A fuse [No. 37, located in the fuse and fusible link block or No. 82, located in the IPDM E/R]

●

Harness for short or open between battery and AWD control unit harness connector terminal 9

●

Harness for short or open between ignition switch and AWD control unit harness connector ter-
minal 7

●

Ignition switch. Refer to 

PG-3, "POWER SUPPLY ROUTING CIRCUIT"

 .

Connector

Terminal (Wire color)

Voltage (Approx.)

E111

7 (GR) - Ground

Battery voltage

9 (G/R) - Ground

SDIA2319E

Connector

Terminal (Wire color)

Voltage (Approx.)

E111

7 (GR) - Ground

0V

9 (G/R) - Ground

Battery voltage

SDIA2320E

TF-38

TROUBLE DIAGNOSIS FOR SYMPTOMS

Revision: 2004 November

2004 Murano

3. 

CHECK AWD CONTROL UNIT GROUND CIRCUIT

1.

Turn ignition switch “OFF”.

2.

Disconnect AWD control unit harness connector.

3.

Check continuity between AWD control unit harness connector
E111 terminals 10 (B), 11 (B) and ground.

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

OK or NG

OK

>> GO TO 4.

NG

>> Repair open circuit or short to ground or short to power

in harness or connectors.

4. 

CHECK AWD CONTROL UNIT

Check AWD control unit input/output signal. Refer to 

TF-22, "AWD Control Unit Input/Output Signal Reference

Values"

 .

OK or NG

OK

>> GO TO 5.

NG

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

any items are damaged, repair or replace damaged parts.

5. 

CHECK INPUT SIGNAL WITH UNIFIED METER AND A/C AMP.

 With CONSULT-II

1.

Turn ignition switch “ON”.

2.

Select “DATA MONITOR” mode for “METER A/C AMP” with CONSULT-II.

3.

Operate AWD lock switch and read out monitor “4WD LOCK
SW”.

OK or NG

OK >> GO 

TO 

6.

NG

>> Perform trouble diagnosis for AWD lock switch. Refer to

TF-34, "AWD Lock Switch"

 .

Continuity should exist.

SDIA1883E

Monitor item

Condition

Display value

4WD LOCK SW

AWD lock switch

OFF

OFF

ON

ON

SDIA2063E

TROUBLE DIAGNOSIS FOR SYMPTOMS

TF-39

C

E

F

G

H

I

J

K

L

M

A

B

TF

Revision: 2004 November

2004 Murano

6. 

CHECK OUTPUT SIGNAL WITH UNIFIED METER AND A/C AMP.

 With CONSULT-II

1.

Start engine.

2.

Select “DATA MONITOR” mode for “METER A/C AMP” with CONSULT-II.

3.

Operate AWD lock switch and read out monitor “4WD LOCK
IND”.

OK or NG

OK >> GO 

TO 

7.

NG

>> Perform trouble diagnosis for combination meter. Refer

to 

DI-15, "How to Proceed With Trouble Diagnosis"

 .

7. 

SYMPTOM CHECK

Check again.

OK or NG

OK

>> INSPECTION END

NG

>> Replace unified meter control unit assembly. Refer to 

DI-29, "Disassembly and Assembly of Com-

bination Meter"

 .

AWD Warning Lamp Does Not Turn ON When The Ignition Switch Is Turned to 
ON

ADS000VR

DIAGNOSTIC PROCEDURE

1. 

CHECK SYSTEM FOR CAN COMMUNICATION LINE

Perform self-diagnosis. Refer to 

TF-24, "SELF-DIAG RESULT MODE"

 .

Is the “CAN COMM CIRCUIT [U1000]” displayed?

YES

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

TF-33, "CAN Communication

Line"

 .

NO

>> GO TO 2.

2. 

CHECK AWD CONTROL UNIT

Check AWD control unit input/output signal. Refer to 

TF-22, "AWD Control Unit Input/Output Signal Reference

Values"

 .

OK or NG

OK

>> GO TO 3.

NG

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

any items are damaged, repair or replace damaged parts.

Monitor item

Condition

Display value

4WD LOCK IND

AWD lock switch

OFF

OFF

ON

ON

SDIA2064E

TF-40

TROUBLE DIAGNOSIS FOR SYMPTOMS

Revision: 2004 November

2004 Murano

3. 

CHECK OUTPUT SIGNAL WITH UNIFIED METER AND A/C AMP.

 With CONSULT-II

1.

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

2.

Select “DATA MONITOR” mode for “METER A/C AMP” with CONSULT-II.

3.

Start the engine, and then make sure that “4WD W/L” display
turns from "ON" to "OFF" after several seconds.

OK or NG

OK >> GO 

TO 

4.

NG

>> Perform trouble diagnosis for combination meter. Refer

to 

DI-15, "How to Proceed With Trouble Diagnosis"

 .

4. 

SYMPTOM CHECK

Check again.

OK or NG

OK

>> INSPECTION END

NG

>> Replace unified meter control unit assembly. Refer to 

DI-29, "Disassembly and Assembly of Com-

bination Meter"

 .

AWD Warning Lamp Does Not Turn OFF Several Seconds after Engine Started

ADS000VS

DIAGNOSTIC PROCEDURE

1. 

CHECK SELF-DIAGNOSTIC RESULTS

Perform self-diagnosis. Refer to 

TF-24, "SELF-DIAG RESULT MODE"

 .

Is any malfunction detected by self-diagnosis?

YES

>> Check the malfunctioning system.

NO

>> GO TO 2.

Monitor item

Condition

Display value

4WD W/L

Ignition switch ON

ON

Start engine (after several seconds)

OFF

SDIA2065E

TROUBLE DIAGNOSIS FOR SYMPTOMS

TF-41

C

E

F

G

H

I

J

K

L

M

A

B

TF

Revision: 2004 November

2004 Murano

2. 

CHECK AWD CONTROL UNIT POWER SUPPLY CIRCUIT

1.

Turn ignition switch “OFF”.

2.

Disconnect AWD control unit harness connector.

3.

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

4.

Check voltage between AWD control unit harness connector ter-
minals and ground.

5.

Turn ignition switch “OFF”.

6.

Check voltage between AWD control unit harness connector ter-
minals and ground.

OK or NG

OK

>> GO TO 3.

NG

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

replace damaged parts.

●

10A fuse [No. 37, located in the fuse and fusible link block or No. 82, located in the IPDM E/R]

●

Harness for short or open between battery and AWD control unit harness connector terminal 9

●

Harness for short or open between ignition switch and AWD control unit harness connector ter-
minal 7

●

Ignition switch. Refer to 

PG-3, "POWER SUPPLY ROUTING CIRCUIT"

 .

3. 

CHECK AWD CONTROL UNIT GROUND CIRCUIT

1.

Turn ignition switch “OFF”.

2.

Disconnect AWD control unit harness connector.

3.

Check continuity between AWD control unit harness connector
E111 terminals 10 (B), 11 (B) and ground.

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

OK or NG

OK

>> GO TO 4.

NG

>> Repair open circuit or short to ground or short to power

in harness or connectors.

Connector

Terminal (Wire color)

Voltage (Approx.)

E111

7 (GR) - Ground

Battery voltage

9 (G/R) - Ground

SDIA2319E

Connector

Terminal (Wire color)

Voltage (Approx.)

E111

7 (GR) - Ground

0V

9 (G/R) - Ground

Battery voltage

SDIA2320E

Continuity should exist.

SDIA1883E

TF-42

TROUBLE DIAGNOSIS FOR SYMPTOMS

Revision: 2004 November

2004 Murano

4. 

CHECK AWD CONTROL UNIT

Check AWD control unit input/output signal. Refer to 

TF-22, "AWD Control Unit Input/Output Signal Reference

Values"

 .

OK or NG

OK

>> GO TO 5.

NG

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

any items are damaged, repair or replace damaged parts.

5. 

CHECK OUTPUT SIGNAL WITH UNIFIED METER AND A/C AMP.

 With CONSULT-II

1.

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

2.

Select “DATA MONITOR” mode for “METER A/C AMP” with CONSULT-II.

3.

Start the engine, and then make sure that “4WD W/L” display
turns from "ON" to "OFF" after several seconds.

OK or NG

OK >> GO 

TO 

6.

NG

>> Perform trouble diagnosis for combination meter. Refer

to 

DI-15, "How to Proceed With Trouble Diagnosis"

 .

6. 

SYMPTOM CHECK

Check again.

OK or NG

OK

>> INSPECTION END

NG

>> Replace unified meter control unit assembly. Refer to 

DI-29, "Disassembly and Assembly of Com-

bination Meter"

 .

AWD Mode Cannot Be Switched after Engine Is Started

ADS000VT

DIAGNOSTIC PROCEDURE

1. 

CHECK AWD WARNING LAMP

Confirm AWD warning lamp.
Does AWD warning lamp turn on?

YES

>> Go to 

TF-40, "AWD Warning Lamp Does Not Turn OFF Several Seconds after Engine Started"

 .

NO

>> GO TO 2.

2. 

CHECK SYSTEM FOR AWD LOCK SWITCH

Perform trouble diagnosis for AWD lock switch system. Refer to 

TF-34, "AWD Lock Switch"

 .

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

Monitor item

Condition

Display value

4WD W/L

Ignition switch ON

ON

Start engine (after several seconds)

OFF

SDIA2065E

TROUBLE DIAGNOSIS FOR SYMPTOMS

TF-43

C

E

F

G

H

I

J

K

L

M

A

B

TF

Revision: 2004 November

2004 Murano

3. 

CHECK CONTROL STATUS OF AWD

 With CONSULT-II

1.

Start engine.

2.

Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.

3.

Operate AWD lock switch and read out monitor “4WD MODE
MON”.

OK or NG

OK >> GO 

TO 

4.

NG

>> GO TO 5.

4. 

CHECK OUTPUT SIGNAL WITH UNIFIED METER AND A/C AMP.

 With CONSULT-II

1.

Start engine.

2.

Select “DATA MONITOR” mode for “METER A/C AMP” with CONSULT-II.

3.

Operate AWD lock switch and read out monitor “4WD LOCK
IND”.

OK or NG

OK >> GO 

TO 

5.

NG

>> Perform trouble diagnosis for combination meter. Refer

to 

DI-15, "How to Proceed With Trouble Diagnosis"

 .

5. 

CHECK AWD CONTROL UNIT

Check AWD control unit input/output signal. Refer to 

TF-22, "AWD Control Unit Input/Output Signal Reference

Values"

 .

OK or NG

OK

>> GO TO 6.

NG

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

any items are damaged, repair or replace damaged parts.

6. 

SYMPTOM CHECK

Check again.

OK or NG

OK

>> INSPECTION END

NG

>> Replace unified meter control unit assembly. Refer to 

DI-29, "Disassembly and Assembly of Com-

bination Meter"

 .

Monitor item

Condition

Display value

4WD MODE MON

AWD lock switch

OFF

AUTO

ON

LOCK

SDIA2268E

Monitor item

Condition

Display value

4WD LOCK IND

AWD lock switch

OFF

OFF

ON

ON

SDIA2064E

TF-44

TROUBLE DIAGNOSIS FOR SYMPTOMS

Revision: 2004 November

2004 Murano

Heavy Tight-Corner Braking Symptom Occurs When the Vehicle Is Driven in 
AUTO Mode and The Steering Wheel Is Turned Fully to Either Side after the 
Engine Is Started

ADS000VU

NOTE:

●

Light tight-corner braking symptom may occur depending on driving conditions in AUTO mode.
This is not malfunction.

●

Heavy tight-corner braking symptom occurs when vehicle is driven in the following conditions:
LOCK mode, steering wheel is turned fully to either sides, and accelerator pedal was depressed.

DIAGNOSTIC PROCEDURE

1. 

CHECK SYSTEM FOR CAN COMMUNICATION LINE

Perform self-diagnosis. Refer to 

TF-24, "SELF-DIAG RESULT MODE"

 .

Is the “CAN COMM CIRCUIT [U1000]” displayed?

YES

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

TF-33, "CAN Communication

Line"

 .

NO

>> GO TO 2.

2. 

CHECK SYSTEM FOR AWD LOCK SWITCH

Perform trouble diagnosis for AWD lock switch system. Refer to 

TF-34, "AWD Lock Switch"

 .

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

3. 

CHECK ACCELERATOR PEDAL POSITION SIGNAL CIRCUIT

Perform self-diagnosis for ECM. Refer to 

EC-48, "Emission-Related Diagnostic Information"

 .

Is any malfunction detected by self-diagnosis?

YES

>> Check the malfunctioning system.

NO

>> GO TO 4.

4. 

CHECK SYSTEM FOR AWD SOLENOID

Perform trouble diagnosis for AWD solenoid system. Refer to 

TF-29, "AWD Solenoid"

 .

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace damaged parts.

5. 

CHECK ELECTRIC CONTROLLED COUPLING

1.

Turn ignition switch “OFF”.

2.

Set the selector lever to “N” (neutral) position and disengage the parking brake.

3.

Lift up the vehicle.

4.

Rotate the propeller shaft by hand.

5.

Hold rear wheel of right and left lightly.

Does rear wheel rotate?

YES

>> Replace electric controlled coupling for mechanical malfunction (clutch sticking etc.). Refer to

RFD-19, "Disassembly and Assembly"

 .

NO

>> GO TO 6.

TROUBLE DIAGNOSIS FOR SYMPTOMS

TF-45

C

E

F

G

H

I

J

K

L

M

A

B

TF

Revision: 2004 November

2004 Murano

6. 

SYMPTOM CHECK

Check again.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 7.

7. 

CHECK AWD CONTROL UNIT

Check AWD control unit input/output signal. Refer to 

TF-22, "AWD Control Unit Input/Output Signal Reference

Values"

 .

OK or NG

OK

>> INSPECTION END

NG

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

any items are damaged, repair or replace damaged parts.

Vehicle Does Not Enter AWD Mode Even Though AWD Warning Lamp Turned to 
OFF

ADS000VV

CAUTION:

Make sure that parking brake is securely released if the symptom has occurred at vehicle speed of 10
km/h (6 MPH) or more.

DIAGNOSTIC PROCEDURE

1. 

CHECK PARKING BRAKE SWITCH SIGNAL

 With CONSULT-II

1.

Turn ignition switch “ON”.

2.

Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.

3.

Operate parking brake and read out monitor “P BRAKE SW”.

OK or NG

OK >> GO 

TO 

2.

NG

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

replace damaged parts.

●

Parking brake switch

●

Brake warning lamp circuit. Refer to 

DI-44, "Wiring

Diagram — WARN —"

 .

2. 

CHECK AWD SOLENOID

Check AWD solenoid. Refer to 

TF-31, "COMPONENT INSPECTION"

 .

OK or NG

OK

>> GO TO 3.

NG

>> Replace electric controlled coupling for malfunction of AWD solenoid. Refer to 

RFD-19, "Disas-

sembly and Assembly"

 .

Monitor item

Condition

Display value

P BRAKE SW

Parking brake operated

ON

Parking brake not operated

OFF

SDIA1933E

TF-46

TROUBLE DIAGNOSIS FOR SYMPTOMS

Revision: 2004 November

2004 Murano

3. 

CHECK AWD CONTROL UNIT

Check AWD control unit input/output signal. Refer to 

TF-22, "AWD Control Unit Input/Output Signal Reference

Values"

 .

OK or NG

OK

>> GO TO 4.

NG

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

any items are damaged, repair or replace damaged parts.

4. 

SYMPTOM CHECK

Check again.

OK or NG

OK

>> INSPECTION END

NG

>> Replace electric controlled coupling for mechanical malfunction (mechanical engagement of

clutch is not possible.). Refer to 

RFD-19, "Disassembly and Assembly"

 .

While Driving, AWD Warning Lamp Flashes Rapidly (When Flashing in Approx. 
1 Minute and Then Turning OFF)

ADS000VW

NOTE:
Rapid flashing: 2 times/second
This symptom protects drivetrain parts when a heavy load is applied to the electric controlled coupling and
multiple disc clutch temperature increases. It is not a malfunction.
When this symptom occurs, stop vehicle and allow it to idle for some times. Flashing will stop and system will
be restored.

While Driving, AWD Warning Lamp Flashes Slowly (When Continuing to Flash 
until Turning Ignition Switch OFF)

ADS000VX

NOTE:
Slow flashing: 1 time/2 seconds

DIAGNOSTIC PROCEDURE

1. 

CHECK TIRE

Check the following.

●

Tire pressure

●

Wear condition

●

Longitudinal tire size (There is no difference between longitudinal tires.)

OK or NG

OK

>> GO TO 2.

NG

>> Drive at vehicle speed of 20 km/h (12 MPH) or more for 5 seconds or more after repairing or

replacing damaged parts. (Initialize improper size tire information.)