Nissan Murano Z51. Manual - part 475

DLN-34

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AWD CONTROL UNIT

• AWD system activates its protection function (shuts down AWD system temporarily) if AWD system detects

high load continuously or the front wheel tire size differs from the rear tire size. (AWD system is automati-
cally restored if AWD system no longer detects any overload or the tire size difference is eliminated.)

*1: Quick blinking: 2 times/second (blinking for approximately 1 minute and then turned OFF)

*2: Slow blinking: 1 time/2 seconds (continuing to blink until ignition switch is turned OFF)

DTC Inspection Priority Chart

INFOID:0000000005514186

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.

DTC Index

INFOID:0000000005514187

Mode

Warning 

lamp

DTC

Detected area (Error area)

Error area and root cause

Protection 

function

 Blinking

*1

—

AWD control unit

Transfer assembly in protection mode. It is not malfunction.
(Internal temperature rise of electronic controlled coupling)

Blinking

*2

—

AWD control unit

Malfunction in each tire or different tire diameter

Fail-safe

ON

C1201

AWD control unit

Internal malfunction of AWD control unit

C1203

ABS actuator and electric 
unit (control unit)

ABS malfunction
• Vehicle speed signal error

C1204

AWD solenoid

• Internal malfunction of electronic controlled coupling
• Malfunction of AWD solenoid power supply circuit (open or 

short)

• Malfunction of AWD solenoid  command current

C1205

AWD control unit

Internal malfunction of AWD control unit

C1210

ECM

Malfunction of engine control system

U1000

CAN communication line

• CAN communication error
• Malfunction of AWD control unit

U1010

AWD control unit

Malfunction of AWD control unit

Priority

Detected items (DTC)

1

• U1000 CAN COMM CIRCUIT
• U1010 CONTROL UNIT (CAN)

2

• C1201 CONTROLLER FAILURE
• C1205 4WD ACTUATOR RLY

3

• C1204 4WD SOLENOID

4

• C1203 ABS SYSTEM
• C1210 ENGINE SIGNAL 1

DTC

Display Item

Reference

C1201

CONTROLLER FAILURE

DLN-12, "DTC Logic"

C1203

ABS SYSTEM

DLN-13, "DTC Logic"

C1204

4WD SOLENOID

DLN-14, "DTC Logic"

C1205

4WD ACTUATOR RLY

DLN-16, "DTC Logic"

C1210

ENGINE SIGNAL 1

DLN-17, "DTC Logic"

U1000

CAN COMM CIRCUIT

DLN-18, "DTC Logic"

U1010

CONTROL UNIT (CAN)

DLN-19, "DTC Logic"

AWD WARNING LAMP DOES NOT TURN ON

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SYMPTOM DIAGNOSIS

AWD WARNING LAMP DOES NOT TURN ON

Description

INFOID:0000000005514188

AWD warning lamp does not turn ON when the ignition switch is turned to ON.

Diagnosis Procedure

INFOID:0000000005514189

1.

CHECK AWD WARNING LAMP

Perform the trouble diagnosis for AWD warning lamp. Refer to 

DLN-24, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Check each harness connector pin terminal for malfunction or disconnection.

NO

>> Repair or replace the error-detected parts.

DLN-36

< SYMPTOM DIAGNOSIS >

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AWD WARNING LAMP DOES NOT TURN OFF

AWD WARNING LAMP DOES NOT TURN OFF

Description

INFOID:0000000005514190

AWD warning lamp does not turn OFF several seconds after the engine started.

Diagnosis Procedure

INFOID:0000000005514191

1.

PERFORM SELF-DIAGNOSIS

With CONSULT-III

Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is any DTC detected?

YES

>> Check the DTC.

NO

>> GO TO 2.

2.

CHECK AWD WARNING LAMP

Perform the trouble diagnosis of the AWD warning lamp. Refer to 

DLN-24, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace the error-detected parts.

3.

CHECK AWD CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT

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

DLN-20, "Diagnosis Proce-

dure"

.

Is the inspection result normal?

YES

>> Check each harness connector pin terminal for malfunction or disconnection.

NO

>> Repair or replace the error-detected parts.

HEAVY TIGHT-CORNER BRAKING SYMPTOM OCCURS

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HEAVY TIGHT-CORNER BRAKING SYMPTOM OCCURS

Description

INFOID:0000000005514192

Heavy tight-corner braking symptom occurs when the vehicle is driven and the steering wheel is turned fully to
either side after the engine is started.
NOTE:
Light tight-corner braking symptom may occur depending on driving conditions. This is not malfunction.

Diagnosis Procedure

INFOID:0000000005514193

1.

PERFORM ECM SELF-DIAGNOSIS

With CONSULT-III

Perform self-diagnosis for “ENGINE”.

Is any DTC detected?

YES

>> Check the DTC.

NO

>> GO TO 2.

2.

PERFORM SELF-DIAGNOSIS

With CONSULT-III

Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “U1000” detected?

YES

>> CAN specification chart. Refer to 

LAN-17, "Trouble Diagnosis Flow Chart"

.

NO

>> GO TO 3.

3.

CHECK AWD SOLENOID

Perform the trouble diagnosis of the AWD solenoid. Refer to 

DLN-14, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace the error-detected parts.

4.

CHECK ELECTRIC CONTROLLED COUPLING

1.

Turn the ignition switch OFF.

2.

Set the transaxle to neutral. Release 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

DLN-97, "Exploded View"

.

NO

>> Check each harness connector pin terminal for disconnection.