Nissan Murano Z51 (2008 year). Manual - part 130

U1010 CONTROL UNIT (CAN)

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U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000003302064

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit communicate data but selectively reads required data only.

DTC Logic

INFOID:0000000003302065

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC REPRODUCTION PROCEDURE

With CONSULT-III

1.

Turn the ignition switch OFF to ON.

2.

Perform AWD control unit self-diagnosis.

Is DTC “U1010” detected?

YES 

>> Proceed to diagnosis procedure. Refer to 

DLN-19, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003302066

1.

CHECK AWD CONTROL UNIT

Check AWD control unit harness connector for disconnection and deformation.

Is the inspection result normal? 

YES

>> Replace AWD control unit. Refer to 

DLN-47, "Exploded View"

.

NO

>> Repair or replace error-detected parts.

DTC

Display item

Malfunction detected condition

Possible cause

U1010

CONTROL UNIT (CAN)

Detecting error during the initial diagno-
sis of CAN controller of AWD control 
unit.

Malfunction of AWD control unit

Revision: 2008 October

2009 Murano

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POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

Description

INFOID:0000000004291461

Supplies power to AWD control unit.

Diagnosis Procedure

INFOID:0000000004291462

1.

CHECK AWD CONTROL UNIT POWER SUPPLY (1)

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 3.

NO

>> GO TO 2.

2.

CHECK AWD CONTROL UNIT POWER SUPPLY (2)

1.

Turn the ignition switch OFF.

2.

Check the 10A fuse (#45).

3.

Disconnect IPDM E/R harness connector.

4.

Check the continuity between AWD control unit harness connector and IPDM E/R harness connector.

5.

Check the continuity between AWD 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-59, "Wiring Diagram -

IGNITION POWER SUPPLY -"

.

NO

>> Repair or replace error-detected parts.

3.

CHECK AWD SOLENOID POWER SUPPLY (1)

1.

Turn the ignition switch OFF.

2.

Disconnect AWD solenoid harness connector.

3.

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

AWD control unit

—

Voltage (Approx.)

Connector

Terminal

M69

7

Ground

0 V

AWD control unit

—

Voltage 

Connector

Terminal

M69

7

Ground

Battery voltage

AWD control unit

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

M69

7

E10

26

Existed

AWD control unit

—

Continuity

Connector

Terminal

M69

7

Ground

Not existed

Revision: 2008 October

2009 Murano

POWER SUPPLY AND GROUND CIRCUIT

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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 5.

NO

>> GO TO 4.

4.

CHECK AWD SOLENOID POWER SUPPLY (2)

1.

Turn the ignition switch OFF.

2.

Check the 10A fuse (#36).

Is the inspection result normal?

YES

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

PG-6, "Wiring Diagram - BAT-

TERY POWER SUPPLY -"

.

NO

>> Repair or replace error-detected parts.

5.

CHECK AWD CONTROL UNIT 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 error-detected parts.

AWD control unit

—

Voltage

Connector

Terminal

M69

9

Ground

Battery voltage

AWD control unit

—

Voltage

Connector

Terminal

M69

9

Ground

Battery voltage

AWD control unit

—

Continuity

Connector

Terminal

M69

10

Ground

Existed

11

Revision: 2008 October

2009 Murano

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AWD LOCK SWITCH

AWD LOCK SWITCH

Description

INFOID:0000000003302069

Able to select AUTO or LOCK mode.

Component Function Check

INFOID:0000000003562635

1.

CHECK AWD LOCK SWITCH OPERATION

Check that AWD LOCK indicator lamp is in a condition as shown in the following table.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to diagnosis procedure. Refer to 

DLN-22, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003302070

1.

CHECK AWD LOCK SWITCH

Check AWD lock switch. Refer to 

DLN-23, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace AWD lock switch.

2.

CHECK AWD LOCK SWITCH CIRCUIT (1)

Check the continuity between AWD lock switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK AWD LOCK SWITCH CIRCUIT (2)

1.

Disconnect AWD control unit harness connector.

2.

Check the continuity between AWD control unit harness connector and AWD lock switch harness connec-
tor.

3.

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

Is the inspection result normal?

YES

>> GO TO 4.

Condition

AWD LOCK indicator lamp

When the switch is pressed in AWD 
mode.

ON

When the switch is pressed in 2WD 
mode.

OFF

AWD lock switch

—

Continuity

Connector

Terminal

M8

3

Ground

Existed

AWD control unit

AWD lock switch

Continuity

Connector

Terminal

Connector

Terminal

M69

14

M8

1

Existed

AWD control unit

—

Continuity

Connector

Terminal

M69

14

Ground

Not existed

Revision: 2008 October

2009 Murano

AWD LOCK SWITCH

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NO

>> Repair or replace error-detected parts.

4.

CHECK AWD CONTROL UNIT OUTPUT SIGNAL

1.

Connect AWD control unit harness connector.

2.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

3.

Check the voltage between AWD lock switch harness connector and ground.

Is the inspection result normal?

YES

>> Check each harness connector pin terminal for disconnection.

NO

>> Replace AWD control unit. Refer to 

DLN-47, "Exploded View"

.

Component Inspection

INFOID:0000000003302071

1.

CHECK AWD LOCK SWITCH

1.

Turn the ignition switch OFF.

2.

Remove AWD lock switch.

3.

Check the continuity between AWD lock switch connector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace AWD lock switch.

AWD lock switch

—

Voltage

Connector

Terminal

M8

1

Ground

Battery voltage

AWD lock switch

Condition

Continuity

Connector

Terminal

M8

1

3

When releasing AWD lock switch.

Not existed

When AWD lock switch is hold pressed.

Existed

Revision: 2008 October

2009 Murano

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AWD WARNING LAMP

AWD WARNING LAMP

Description

INFOID:0000000003302072

• Turns ON when there is a malfunction in AWD system. AWD warning lamp indicates the vehicle is in fail-safe

mode and shifting to front-wheel drive or 4-wheel drive (rear-wheels still have some driving torque).

• Also turns ON when ignition switch is turned ON, for the 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.

Component Function Check

INFOID:0000000003562662

1.

CHECK AWD WARNING LAMP FUNCTION 

1.

Turn ignition switch ON.

2.

Check that AWD warning lamp lights up.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to diagnosis procedure. Refer to 

DLN-24, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003302073

1.

CHECK POWER SUPPLY AND GROUND CIRCUIT

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

DLN-20, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the error-detected parts.

2.

PERFORM SELF-DIAGNOSIS

With CONSULT-III

Perform AWD control unit self-diagnosis.

Is any detected?

YES

>> Check the DTC.

NO

>> GO TO 3.

3.

CHECK AWD WARNING LAMP SIGNAL

With CONSULT-III

1.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

2.

Check “4WD WARN LAMP” of AWD control unit CONSULT-III “DATA MONITOR”.

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

YES

>> GO TO 4.

Condition

AWD warning lamp

Lamp check

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

the 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 front wheel drive.)

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

Revision: 2008 October

2009 Murano

AWD WARNING LAMP

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NO

>> Replace AWD control unit. Refer to 

DLN-47, "Exploded View"

.

4.

CHECK COMBINATION METER POWER SUPPLY CIRCUIT

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

MWI-43, "COMBINATION

METER : Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace the error-detected parts.

Revision: 2008 October

2009 Murano

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AWD LOCK INDICATOR LAMP

AWD LOCK INDICATOR LAMP

Description

INFOID:0000000003302074

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

AWD LOCK INDICATOR LAMP

Component Function Check

INFOID:0000000003562663

1.

AWD LOCK INDICATOR LAMP OPERATION CHECK 1

Check that AWD LOCK indicator lamp turns on for approximately 1 second after the ignition switch is turned
ON.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to diagnosis procedure. Refer to 

DLN-22, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003302075

1.

CHECK AWD WARNING LAMP

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

Does AWD warning lamp turn ON?

YES

>> Proceed to 

DLN-24, "Diagnosis Procedure"

.

NO

>> GO TO 2.

2.

CHECK AWD LOCK SWITCH

Perform the trouble diagnosis for AWD lock switch. Refer to 

DLN-22, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace the error-detected parts.

3.

CHECK AWD LOCK INDICATOR LAMP SIGNAL

With CONSULT-III

1.

Start the engine.

CAUTION:

Stop the vehicle.

2.

Change AWD lock switch to “LOCK” from “AUTO”.

3.

Check “4WD MODE MON” of AWD control unit CONSULT-III “DATA MONITOR”.

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

YES

>> GO TO 4.

NO

>> Replace AWD control unit. Refer to 

DLN-47, "Exploded View"

.

4.

CHECK COMBINATION METER POWER SUPPLY CIRCUIT

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

MWI-43, "COMBINATION

METER : Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace the error-detected parts.

Condition

AWD LOCK indicator lamp

Lamp check

Turns ON for approx. 1 second when ignition switch is turned ON.

AUTO mode

OFF

LOCK mode

ON

Revision: 2008 October

2009 Murano

AWD CONTROL UNIT

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ECU DIAGNOSIS

AWD CONTROL UNIT

Reference Value

INFOID:0000000003302076

VALUES ON THE DIAGNOSIS TOOL

Monitor item

Condition

Value/Status

STOP LAMP SW

Brake pedal: Depressed

On

Brake pedal: Released

Off

ENG SPEED SIG

Engine stopped
(Engine speed: Less than 400 rpm)

Stop

Engine running
(Engine speed: 400 rpm or more)

Run

ETS ACTUATOR

Engine stopped (Ignition switch: ON)

Off

Engine running

On

4WD WARN LAMP

AWD warning lamp: ON

On

AWD warning lamp: OFF

Off

4WD MODE SW

Releasing AWD lock switch.

AUTO

AWD lock switch is hold pressed.

LOCK

4WD MODE MON

AWD LOCK indicator lamp: OFF

AUTO

AWD LOCK indicator lamp: ON

Vehicle speed below 10 km/h (6 
mph)

LOCK

Vehicle speed above 10 km/h (6 
mph)

AUTO

DIS-TIRE MONI

Vehicle running with normal size tire installed

0 – 4 mm

Vehicle running with improper size tire installed (Front/rear tire size 
difference, wear condition)

4 – 8 mm, 8 – mm

P BRAKE SW

Parking brake operated

On

Parking brake not operated

Off

BATTERY VOLT

Always

Battery voltage

THRTL POS SEN

When depressing accelerator pedal
(Value rises gradually in response to throttle position.)

0 – 100%

ETS SOLENOID

Engine running
• At idle speed

AWD LOCK indicator lamp: OFF

Approx. 0.000 A

AWD LOCK indicator lamp: ON

Approx. 0.000 A

Engine running
• 3,000 rpm or more constant

AWD LOCK indicator lamp: OFF

Approx. 0.000 – 1.800 A*

AWD LOCK indicator lamp: ON

Approx. 1.800 A

FR RH SENSOR

Vehicle stopped

0.00 km/h (0.00 mph)

Vehicle running

CAUTION:

Check air pressure of tire under standard condition.

Nearly matches the speed meter 
display (

±

10% or less)

FR LH SENSOR

Vehicle stopped

0.00 km/h (0.00 mph)

Vehicle running

CAUTION:

Check air pressure of tire under standard condition.

Nearly matches the speed meter 
display(

±

10% or less)

RR RH SENSOR

Vehicle stopped

0.00 km/h (0.00 mph)

Vehicle running

CAUTION:

Check air pressure of tire under standard condition.

Nearly matches the speed meter 
display(

±

10% or less)

Revision: 2008 October

2009 Murano

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AWD CONTROL UNIT

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

TERMINAL LAYOUT

PHYSICAL VALUES

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

CAUTION:

When using circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.

RR LH SENSOR

Vehicle stopped

0.00 km/h (0.00 mph)

Vehicle running

CAUTION:

Check air pressure of tire under standard condition.

Nearly matches the speed meter 
display(

±

10%)

Monitor item

Condition

Value/Status

JSDIA0057ZZ

Terminal No.

(Wire color)

Description

Condition

Value (Approx.)

+

-

Signal name

Input/

Output

1

(LG)

Ground

AWD solenoid power sup-
ply

Output

Engine speed: At idle

AWD LOCK indicator lamp: OFF

0 V

AWD LOCK indicator lamp: ON

0 V

Engine speed: 3,000 
rpm or more constant

AWD LOCK indicator lamp: OFF

2.5 V*

AWD LOCK indicator lamp: ON

8 V

2

(L)

Ground

AWD solenoid ground

—

Engine speed: At idle

0 V

Engine speed: 3,000 rpm or more constant

0 V

7

(R)

Ground

Ignition switch

Input

Ignition switch: ON

Battery voltage

Ignition switch: OFF

0 V

8

(L)

—

CAN-H

Input/

Output

—

—

9

(G)

Ground

Power supply (AWD sole-
noid)

Input

Always

Battery voltage

10

(B)

Ground

Ground

—

Always

0 V

11

(B)

Ground

Ground

—

Always

0 V

14

(Y)

Ground

AWD lock switch

Output

Ignition switch: ON

Releasing AWD lock switch

Battery voltage

AWD lock switch is hold 
pressed.

0 V

16

(P)

—

CAN-L

Input/

Output

—

—

Revision: 2008 October

2009 Murano

AWD CONTROL UNIT

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Wiring Diagram - AWD SYSTEM -

INFOID:0000000003302078

JCDWM0487GB

Revision: 2008 October

2009 Murano

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AWD CONTROL UNIT

JCDWM0488GB

Revision: 2008 October

2009 Murano

AWD CONTROL UNIT

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JCDWM0489GB

Revision: 2008 October

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AWD CONTROL UNIT

Fail-Safe

INFOID:0000000003302079

AWD system

• If any malfunction occurs in AWD electrical system, and control unit detects the malfunction, AWD warning

lamp on combination meter turns ON to indicate system malfunction.

• When AWD warning lamp is ON, vehicle changes to front-wheel drive or shifts to 4-wheel drive (rear-wheels

still have some driving torque).

JCDWM0490GB

Revision: 2008 October

2009 Murano

AWD CONTROL UNIT

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• 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:0000000003302080

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

DTC Index

INFOID:0000000003302081

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)

• Malfunction of ABS actuator and electric unit (control unit)
• 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"

Revision: 2008 October

2009 Murano

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AWD WARNING LAMP DOES NOT TURN ON

SYMPTOM DIAGNOSIS

AWD WARNING LAMP DOES NOT TURN ON

Description

INFOID:0000000003302083

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

Diagnosis Procedure

INFOID:0000000003302084

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.

Revision: 2008 October

2009 Murano