Nissan Murano Z51 (2008 year). Manual — part 130
U1010 CONTROL UNIT (CAN)
DLN-19
< COMPONENT DIAGNOSIS >
[TRANSFER: TY20A]
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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
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
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
DLN-20
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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
.
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
DLN-21
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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
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
DLN-22
< COMPONENT DIAGNOSIS >
[TRANSFER: TY20A]
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
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
DLN-23
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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
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
DLN-24
< COMPONENT DIAGNOSIS >
[TRANSFER: TY20A]
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
Diagnosis Procedure
INFOID:0000000003302073
1.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Perform the trouble diagnosis for power supply and ground circuit. Refer to
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
DLN-25
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NO
>> Replace AWD control unit. Refer to
4.
CHECK COMBINATION METER POWER SUPPLY CIRCUIT
Perform the trouble diagnosis for combination meter power supply circuit. Refer to
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace the error-detected parts.
Revision: 2008 October
2009 Murano
DLN-26
< COMPONENT DIAGNOSIS >
[TRANSFER: TY20A]
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
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
.
NO
>> GO TO 2.
2.
CHECK AWD LOCK SWITCH
Perform the trouble diagnosis for AWD lock switch. Refer to
.
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
4.
CHECK COMBINATION METER POWER SUPPLY CIRCUIT
Perform the trouble diagnosis for combination meter power supply circuit. Refer to
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
DLN-27
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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
DLN-28
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[TRANSFER: TY20A]
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
DLN-30
< ECU DIAGNOSIS >
[TRANSFER: TY20A]
AWD CONTROL UNIT
JCDWM0488GB
Revision: 2008 October
2009 Murano
AWD CONTROL UNIT
DLN-31
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[TRANSFER: TY20A]
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JCDWM0489GB
Revision: 2008 October
2009 Murano
DLN-32
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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
C1203
ABS SYSTEM
C1204
4WD SOLENOID
C1205
4WD ACTUATOR RLY
C1210
ENGINE SIGNAL 1
U1000
CAN COMM CIRCUIT
U1010
CONTROL UNIT (CAN)
Revision: 2008 October
2009 Murano
DLN-34
< SYMPTOM DIAGNOSIS >
[TRANSFER: TY20A]
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
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
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