Nissan Murano Z50 (2005 year). Manual - part 222

TROUBLE DIAGNOSIS

TF-25

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5.

Touch “ALL MODE AWD/4WD”.
If “ALL MODE AWD/4WD” is not indicated, go to 

GI-39, "CON-

SULT-II Data Link Connector (DLC) Circuit"

 .

6.

Perform each diagnostic test mode according to each service
procedure.

SELF-DIAG RESULT MODE
Operation Procedure

1.

Perform “CONSULT-II SETTING PROCEDURE”. Refer to 

TF-24, "CONSULT-II SETTING PROCEDURE"

.

2.

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

3.

Stop vehicle. With engine at idle, touch “SELF-DIAG RESULTS”.
Display shows malfunction experienced since the last erasing
operation.
NOTE:

●

“TIME” shows the status of self-diagnosis results:

–

“0”: Error is currently detected with AWD control unit.

–

Except for “0”: Error was detected in the past and memo-
rized in AWD control unit.
“TIME” means the frequency of driving after DTC had
occurred (frequency of turning ignition switch “ON/
OFF”).

Display Item List

CAUTION:

●

If “CAN COMM CIRCUIT [U1000]” is displayed with other DTCs, first perform the trouble diagnosis for CAN communica-
tion line.

●

Make sure that ABS warning lamp turns OFF by driving for a minute at vehicle speed of 30 km/h (19 MPH) or more after
turning ignition switch “OFF”, if AWD warning lamp turns ON with system malfunction of “ABS SYSTEM [C1203]”. AWD
warning lamp may not turn OFF if it is normal unless ignition switch is turned OFF once and engine restarts after that.

How to Erase Self-diagnostic Results

1.

Perform applicable inspection of malfunctioning item and then repair or replace.

SDIA2216E

SDIA2217E

Items (CONSULT-II screen 

terms)

Diagnostic item is detected when...

Check item

CONTROLLER FAILURE
[C1201]

Malfunction has occurred inside AWD control unit.

TF-29, "AWD Control Unit"

ABS SYSTEM
[C1203]

Malfunction related to wheel sensor has been detected by ABS actu-
ator and electric unit (control unit).

TF-29, "ABS System"

4WD SOLENOID
[C1204]

Malfunction related to AWD solenoid has been detected.

TF-30, "AWD Solenoid"

4WD ACTUATOR RLY
[C1205]

Malfunction has been detected from AWD actuator relay integrated 
with AWD control unit, or malfunction related to AWD solenoid has 
been detected.

TF-33, "AWD Actuator 
Relay"

 or 

TF-30, "AWD 

Solenoid"

ENGINE SIGNAL 1
[C1210]

Malfunction has been detected from ECM.

TF-36, "Engine Control Sig-
nal"

CAN COMM CIRCUIT
[U1000]

Malfunction has been detected from CAN communication line.

TF-36, "CAN Communica-
tion Line"

NO DTC IS DETECTED.
FURTHER TESTING MAY BE 
REQUIRED.

No NG item has been detected.

—

TF-26

TROUBLE DIAGNOSIS

Revision: 2005 August

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2.

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

3.

Make sure that ABS warning lamp turns OFF.

NOTE:
Make sure that ABS warning lamp turns OFF by driving for a minute at vehicle speed of 30 km/h
(19 MPH) or more after turning ignition switch “OFF”, if AWD warning lamp turns ON with system
malfunction of “ABS SYSTEM [C1203]”. AWD warning lamp may not turn OFF if it is normal unless
ignition switch turns OFF once and engine restarts after that.

4.

Turn ignition switch “OFF” to erase memory.

5.

Start engine and select “SELF-DIAG RESULTS” mode for “ALL MODE AWD/4WD” with CONSULT-II.

6.

Touch “ERASE” on CONSULT-II screen to erase DTC memory.

CAUTION:

If memory cannot be erased, perform applicably diagnosis.

7.

Drive at 30 km/h (19 MPH) or more for approx. 1 minute. Be sure AWD warning lamp is OFF.

DATA MONITOR MODE
Operation Procedure

1.

Perform “CONSULT-II SETTING PROCEDURE”. Refer to 

TF-24, "CONSULT-II SETTING PROCEDURE"

.

2.

Touch “DATA MONITOR”.

3.

Select from “SELECT MONITOR ITEM”, screen of data monitor mode is displayed.
NOTE:
When malfunction is detected, CONSULT-II performs REAL-TIME DIAGNOSIS.
Also, any malfunction detected while in this mode will be displayed at real time.

Display Item List

×

: Standard

–: Not applicable

Monitored item (Unit)

Monitor item selection

Remarks

ECU INPUT 

SIGNALS

MAIN

SIGNALS

SELECTION 

FROM MENU

FR RH SENSOR [km/h] or [mph]

×

×

×

Wheel speed calculated by front wheel 
sensor RH signal is displayed.

FR LH SENSOR [km/h] or [mph]

×

×

×

Wheel speed calculated by front wheel 
sensor LH signal is displayed.

RR RH SENSOR [km/h] or [mph]

×

×

×

Wheel speed calculated by rear wheel 
sensor RH signal is displayed.

RR LH SENSOR [km/h] or [mph]

×

×

×

Wheel speed calculated by rear wheel 
sensor LH signal is displayed.

BATTERY VOLT [V]

–

–

×

Power supply voltage for AWD control unit.

THRTL POS SEN [%]

–

–

×

Throttle opening status is displayed.

ETS SOLENOID [A]

–

–

×

Monitored value of current at AWD sole-
noid.

STOP LAMP SW [ON/OFF]

–

–

×

Stop lamp switch signal status via CAN 
communication line is displayed.

ENG SPEED SIG [RUN/STOP]

–

–

×

Engine status is displayed.

ETS ACTUATOR [ON/OFF]

–

–

×

Operating condition of AWD actuator relay 
(integrated in AWD control unit) is dis-
played.

4WD WARN LAMP [ON/OFF]

–

–

×

Control status of AWD warning lamp is dis-
played.

4WD MODE SW [ON/OFF]

–

–

×

AWD lock switch signal status via CAN 
communication line is displayed.

4WD MODE MON [AUTO/LOCK] 

–

–

×

Control status of AWD is displayed.
(Output condition of AWD LOCK indicator 
lamp signal)

TROUBLE DIAGNOSIS

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ACTIVE TEST MODE
Description

Use this mode to determine and identify the details of a malfunction based on self-diagnostic results or data
monitor. AWD control unit gives drive signal to actuator with receiving command from CONSULT-II to check
operation of actuator.

Test Item

CAUTION:

Do not continuously energize for a long time.

AWD CONTROL UNIT PART NUMBER

Ignore the AWD control unit part number displayed in the “ECU PART NUMBER”.
Refer to parts catalog to order the AWD control unit.

DIS-TIRE MONI [mm]

–

–

×

Improper size tire installed condition is dis-
played.

P BRAKE SW [ON/OFF]

–

–

×

Parking switch signal status via CAN com-
munication line is displayed.

Voltage [V]

–

–

×

The value measured by the voltage probe 
is displayed.

Frequency [Hz]

–

–

×

The value measured by the pulse probe is 
displayed.

DUTY-HI (high) [%]

–

–

×

DUTY-LOW (low) [%]

–

–

×

PLS WIDTH-HI [msec]

–

–

×

PLS WIDTH-LOW [msec]

–

–

×

Monitored item (Unit)

Monitor item selection

Remarks

ECU INPUT 

SIGNALS

MAIN

SIGNALS

SELECTION 

FROM MENU

Test item

Condition

Description

ETS S/V
(Detects AWD solenoid valve)

●

Vehicle stopped

●

Engine running

●

No DTC detected

●

Change command current value to AWD solenoid, and then change driv-
ing mode. (Monitor value is normal if it is within approximately 

±

10% of 

command value.)
Qu: Increase current value in increments of 0.20A
Qd: Decrease current value in increments of 0.20A
UP: Increase current value in increments of 0.02A
DOWN: Decrease current value in increments of 0.02A

TF-28

TROUBLE DIAGNOSIS FOR SYSTEM

Revision: 2005 August

2005 Murano

TROUBLE DIAGNOSIS FOR SYSTEM

PFP:00000

Power Supply Circuit For AWD Control Unit

ADS000WO

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Data are reference value.

DIAGNOSTIC PROCEDURE

1. 

CHECK POWER SUPPLY 

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 2.

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"

 .

Monitored item [Unit]

Condition

Display value (Approx.)

BATTERY VOLT [V]

Ignition switch: ON

Battery voltage

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

TROUBLE DIAGNOSIS FOR SYSTEM

TF-29

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2. 

CHECK 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 3.

NG

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

in harness or connectors.

3. 

CHECK DTC

Start engine.

Does AWD warning lamp turn OFF?

YES

>> INSPECTION END

NO

>> Perform the self-diagnosis, repair or replace damaged parts. Refer to 

TF-25, "SELF-DIAG

RESULT MODE"

 .

AWD Control Unit

ADS000WP

DIAGNOSTIC PROCEDURE

●

Check the following if “CONTROLLER FAILURE [C1201]” is displayed in self-diagnostic results of CON-
SULT-II.

1. 

PERFORM SELF-DIAGNOSIS

 With CONSULT-II

1.

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

2.

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

3.

Touch “ERASE”.

4.

Turn ignition switch “OFF” and wait at least 10 seconds.

5.

Perform the self-diagnosis again.

Is the “CONTROLLER FAILURE [C1201]” displayed?

YES

>> Replace AWD control unit. Refer to 

TF-49, "AWD CONTROL UNIT"

 .

NO

>> INSPECTION END

ABS System

ADS000WQ

DIAGNOSTIC PROCEDURE

●

Check the following if “ABS SYSTEM [C1203]” is displayed in self-diagnostic results of CONSULT-II.

1. 

CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Perform self-diagnosis with ABS actuator and electric unit (control unit). Refer to 

BRC-22, "SELF-DIAGNO-

SIS"

  (without VDC) or 

BRC-72, "SELF-DIAGNOSIS"

  (with VDC).

Is any malfunction detected by self-diagnosis?

YES

>> Check the malfunctioning system.

NO

>> GO TO 2.

Continuity should exist.

SDIA1883E

TF-30

TROUBLE DIAGNOSIS FOR SYSTEM

Revision: 2005 August

2005 Murano

2. 

CHECK DTC AFTER DRIVING

1.

Turn ignition switch “OFF”.

2.

Start engine and drive vehicle at 30 km/h (19 MPH) for at least 1 minute.

3.

Make sure that ABS warning lamp turns OFF.

4.

Erase self-diagnostic results. Refer to 

TF-25, "How to Erase Self-diagnostic Results"

 .

5.

Stop vehicle and turn ignition switch “OFF”.

6.

Turn ignition switch “ON”.

7.

Perform self-diagnosis.

Is the “ABS SYSTEM [C1203]” displayed?

YES

>> GO TO 3.

NO

>> INSPECTION END

3. 

CHECK AWD CONTROL UNIT

Check AWD control unit input/output signal. Refer to 

TF-23, "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. 

CHECK DTC

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

OK or NG

OK

>> INSPECTION END

NG

>> Perform self-diagnosis with ABS actuator and electric unit (control unit) again. Refer to 

BRC-22,

"SELF-DIAGNOSIS"

  (without VDC) or 

BRC-72, "SELF-DIAGNOSIS"

  (with VDC).

AWD Solenoid

ADS000WR

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Data are reference value.

*: The values are changed by throttle opening and engine speed.

Monitored item [Unit]

Condition

Display value

ETS SOLENOID [A]

Engine speed: At idle

AUTO mode

Approx. 0.000A

LOCK mode

Engine speed: 3,000 rpm or more constant

AUTO mode

Approx. 0.000 - 0.500A*

LOCK mode

Approx. 1.800A

TROUBLE DIAGNOSIS FOR SYSTEM

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DIAGNOSTIC PROCEDURE

●

Check the following if “4WD SOLENOID [C1204]” is displayed in self-diagnostic results of CONSULT-II.

1. 

CHECK AWD SOLENOID SIGNAL

 With CONSULT-II

1.

Start engine.

2.

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

3.

Read out the value of “ETS SOLENOID”.

*: The values are changed by throttle opening and engine speed.

OK or NG

OK >> GO 

TO 

6.

NG

>> GO TO 2.

2. 

CHECK POWER SUPPLY 

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-
minal 9 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]

●

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

3. 

CHECK AWD SOLENOID CIRCUIT

1.

Turn ignition switch “OFF”.

2.

Disconnect AWD control unit harness connector.

3.

Check resistance between AWD control unit harness connector
terminals 1 and 2.

 OK or NG

 OK 

>>  GO TO 6.

 NG

>>  GO TO 4.

Condition

Display value

Engine speed: At idle

AUTO mode

Approx. 0.000A

LOCK mode

Engine speed: 3,000 rpm or 
more constant

AUTO mode

Approx. 0.000 - 0.500A*

LOCK mode

Approx. 1.800A

SDIA1885E

Connector

Terminal (Wire color)

Voltage (Approx.)

E111

9 (G/R) - Ground

Battery voltage

SDIA1884E

Connector

Terminal (Wire color)

 Resistance (Approx.)

E111

1 (LG) - 2 (L/W) (Ground)

2.45 

Ω

SDIA1928E

TF-32

TROUBLE DIAGNOSIS FOR SYSTEM

Revision: 2005 August

2005 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-16, "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-23, "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 item is 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

TROUBLE DIAGNOSIS FOR SYSTEM

TF-33

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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-16,

"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-25, "SELF-DIAG RESULT MODE"

 .

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

YES

>> Perform trouble diagnosis for AWD solenoid. Refer to 

TF-30, "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-23, "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 item is 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

TF-34

TROUBLE DIAGNOSIS FOR SYSTEM

Revision: 2005 August

2005 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.

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 [ON/OFF]

AWD lock switch

OFF

OFF

ON

ON

Monitor item

Condition

Display value

4WD MODE SW

AWD lock switch

OFF

OFF

ON

ON

SDIA3017E

Monitor item

Condition

Display value

4WD LOCK SW

AWD lock switch

OFF

OFF

ON

ON

SDIA2063E

TROUBLE DIAGNOSIS FOR SYSTEM

TF-35

C

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TF

Revision: 2005 August

2005 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-23, "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 item is 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: 2005 August

2005 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-38, "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.

Engine Control Signal

ADS001DS

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-47, "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-23, "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-47, "Emission-Related Diagnostic Informa-

tion"

 .

CAN Communication Line

ADS000WT

DIAGNOSTIC PROCEDURE

●

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

Connector

Terminal

Condition

Continuity

M55

1 - 3

AWD lock switch: “ON” position

Yes

AWD lock switch: “OFF” position

No

SDIA2003E

TROUBLE DIAGNOSIS FOR SYSTEM

TF-37

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TF

Revision: 2005 August

2005 Murano

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

>> Print out CONSULT-II screen and go to 

LAN-5, "Precau-

tions When Using CONSULT-II"

 .

NO

>> INSPECTION END

SDIA1850E

TF-38

TROUBLE DIAGNOSIS FOR SYMPTOMS

Revision: 2005 August

2005 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-25, "SELF-DIAG RESULT MODE"

 .

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

YES

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

TF-36, "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

TROUBLE DIAGNOSIS FOR SYMPTOMS

TF-39

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TF

Revision: 2005 August

2005 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-23, "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 item is 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

TF-40

TROUBLE DIAGNOSIS FOR SYMPTOMS

Revision: 2005 August

2005 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, "Trouble Diagnosis"

 .

7. 

SYMPTOM CHECK

Check again.

OK or NG

OK

>> INSPECTION END

NG

>> Replace unified meter control unit assembly. Refer to 

DI-26, "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-25, "SELF-DIAG RESULT MODE"

 .

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

YES

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

TF-36, "CAN Communication

Line"

 .

NO

>> GO TO 2.

2. 

CHECK AWD CONTROL UNIT

Check AWD control unit input/output signal. Refer to 

TF-23, "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.

Monitor item

Condition

Display value

4WD LOCK IND

AWD lock switch

OFF

OFF

ON

ON

SDIA2064E