Nissan Murano Z51 (2008 year). Manual — part 129
DLN-3
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REAR PROPELLER SHAFT . . . . . . . ..
Inspection . . . . . . . . . . . . . . . .
ON-VEHICLE REPAIR . . . . . . . . .
REAR PROPELLER SHAFT . . . . . . . ..
Exploded View . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . . ..
General Specifications . . . . . . . . . . .
Propeller Shaft Runout . . . . . . . . . . .
Journal Axial Play . . . . . . . . . . . . .
REAR FINAL DRIVE: R145
FUNCTION DIAGNOSIS . . . . . . . ..
REAR FINAL DRIVE ASSEMBLY . . . . . .
System Diagram . . . . . . . . . . . . . ..
SYMPTOM DIAGNOSIS . . . . . . . ..
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING . . . . . . .
NVH Troubleshooting Chart . . . . . . . . .
PRECAUTION . . . . . . . . . . . ..
PRECAUTIONS . . . . . . . . . . . . ..
Service Notice or Precautions for Rear Final Drive
PREPARATION . . . . . . . . . . ...
PREPARATION . . . . . . . . . . . . ..
Special Service Tools . . . . . . . . . . . ..
Commercial Service Tools . . . . . . . . . ..
ON-VEHICLE MAINTENANCE . . . . .
REAR DIFFERENTIAL GEAR OIL . . . . .
Inspection . . . . . . . . . . . . . . . .
Draining . . . . . . . . . . . . . . . . ...
Refilling . . . . . . . . . . . . . . . . ...
ON-VEHICLE REPAIR . . . . . . . . .
FRONT OIL SEAL . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
SIDE OIL SEAL . . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
ELECTRIC CONTROLLED COUPLING . . ...
Exploded View . . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
REMOVAL AND INSTALLATION . . . ...
REAR FINAL DRIVE ASSEMBLY . . . . .
Exploded View . . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
DISASSEMBLY AND ASSEMBLY . . .
ELECTRIC CONTROLLED COUPLING . . .
Exploded View . . . . . . . . . . . . . ...
Disassembly . . . . . . . . . . . . . . ..
Assembly . . . . . . . . . . . . . . . ...
Adjustment . . . . . . . . . . . . . . . .
Inspection After Disassembly . . . . . . . .
DIFFERENTIAL ASSEMBLY . . . . . . ..
Exploded View . . . . . . . . . . . . . ...
Disassembly . . . . . . . . . . . . . . ..
Assembly . . . . . . . . . . . . . . . ...
Inspection After Disassembly . . . . . . . .
DRIVE PINION . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . ...
Disassembly . . . . . . . . . . . . . . ..
Assembly . . . . . . . . . . . . . . . ...
Adjustment . . . . . . . . . . . . . . . .
Inspection After Disassembly . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ..
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . ...
General Specification . . . . . . . . . . .
Drive Gear Runout . . . . . . . . . . . . .
Differential Side Gear Clearance . . . . . . ...
Preload Torque . . . . . . . . . . . . . ..
Backlash . . . . . . . . . . . . . . . .
Companion Flange Runout . . . . . . . . .
Revision: 2008 October
2009 Murano
DLN-4
< BASIC INSPECTION >
[TRANSFER: TY20A]
DIAGNOSIS AND REPAIR WORK FLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work Flow
INFOID:0000000003302033
DETAILED FLOW
1.
INTERVIEW FROM THE CUSTOMER
Clarify customer complaints before inspection. First of all, reproduce symptoms, and understand them fully.
Ask customer about his/her complaints carefully. Check symptoms by driving vehicle with customer, if neces-
sary.
CAUTION:
Customers are not professional. Never guess easily like “maybe the customer means that...,” or
“maybe the customer mentions this symptom”.
>> GO TO 2.
2.
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
>> GO TO 3.
NO
>> GO TO 6.
3.
PERFORM SELF-DIAGNOSIS
With CONSULT-III
1.
Perform AWD control unit self-diagnosis.
2.
Check malfunction detected by self-diagnosis.
3.
Erase AWD control unit self-diagnostic results.
>> GO TO 4.
4.
CHECK TERMINALS AND HARNESS CONNECTORS
Check pin terminals for damage or loose connection with harness connector.
>> GO TO 5.
5.
CHECK SYMPTOM REPRODUCTION
With CONSULT-III
Perform DTC reproduction procedure for the error system.
Is any error detected?
YES
>> GO TO 2.
NO
>> GO TO 6.
6.
PERFORM SYMPTOM DIAGNOSIS
Perform the symptom diagnosis for each system.
Is any malfunction present?
YES
>> GO TO 2.
NO
>> GO TO 7.
7.
FINAL CHECK
With CONSULT-III
Check input/output signal standard of AWD control unit.
Is the input/output the standard value?
YES
>> INSPECTION END
NO
>> GO TO 2.
Revision: 2008 October
2009 Murano
AWD SYSTEM
DLN-5
< FUNCTION DIAGNOSIS >
[TRANSFER: TY20A]
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FUNCTION DIAGNOSIS
AWD SYSTEM
System Diagram
INFOID:0000000003302034
CONTROL DIAGRAM
CROSS-SECTIONAL VIEW
JSDIA0955GB
Revision: 2008 October
2009 Murano
DLN-6
< FUNCTION DIAGNOSIS >
[TRANSFER: TY20A]
AWD SYSTEM
System Description
INFOID:0000000003302035
DESCRIPTION
• AWD controls distribution of drive power between front-wheel drive (100:0) and 4-wheel drive (50:50) condi-
tions according to signals from sensors.
• By receiving the steering angle sensor signal, yaw rate sensor signal, side G sensor signal and decel G sen-
sor signal, vehicle with VDC corrects a torque distribution for front and rear wheels according to a driving
operation and a behavior of the vehicle during cornering and improves drivability and safety on a slippery
road surface.
• It transmits/receives each signal from the following AWD control unit via CAN communication line.
1.
Adapter case
2.
Transfer case
3.
Gear ring bearing (Transfer case side)
4.
Pinion front bearing
5.
Pinion sleeve
6.
Drive pinion
7.
Companion flange
8.
Pinion rear bearing
9.
Drive gear
10. Gear ring bearing (Adapter case side)
JPDIE0015ZZ
Component parts
Function
ABS actuator and electric unit (control unit)
Transmits the following signals via CAN communication to AWD control unit.
• Vehicle speed signal
• Stop lamp switch signal (brake signal)
• Yaw rate sensor signal
• Side G sensor signal
• Decel G sensor signal
ECM
Transmits the following signals via CAN communication to AWD control unit.
• Accelerator pedal position signal
• Engine speed signal
Revision: 2008 October
2009 Murano
AWD SYSTEM
DLN-7
< FUNCTION DIAGNOSIS >
[TRANSFER: TY20A]
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AUTO Mode
• Electronic control allows optimal distribution of torque to front/rear wheels to match road conditions.
• AWD mode makes possible stable driving possible with no wheel spin, on snowy roads or other slippery sur-
faces.
• On roads which do not require 4-wheel drive, AUTO mode contributes to improved fuel economy by driving
in conditions close to front-wheel drive.
• Sensor inputs determine the vehicle's turning condition, and tight cornering/braking are controlled by distrib-
uting optimum torque to rear wheels.
NOTE:
Light tight-corner braking symptom may occur depending on driving condition in AUTO mode. This is not mal-
function.
LOCK Mode
• Front/rear wheel torque distribution is fixed, ensuring stable driving when climbing slopes.
• Vehicle will switch automatically to AUTO mode if vehicle speed increases. If vehicle speed then decreases,
the vehicle automatically returns to direct 4-wheel driving conditions. The AWD LOCK indicator lamp keeps
illuminating.
• LOCK mode will change to AUTO mode automatically, when the vehicle has been driven at a high speed.
The AWD LOCK indicator lamp turns off.
• LOCK mode will change to AUTO mode automatically, when the ignition switch is turned “OFF”.
NOTE:
• Every time AWD LOCK switch is pressed, AUTO mode and LOCK mode switch each other.
• If there is a significant difference in pressure or wear between tires, full vehicle performance is not available.
Tire conditions are detected, and LOCK mode may be prohibited, or else speeds at which LOCK mode is
enabled may be restricted.
• 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 is depressed.
CAUTION:
Never switch to LOCK when rotation speed of front and rear wheel differs.
POWER TRANSFER DIAGRAM
OPERATION PRINCIPLE
Electric Controlled Coupling
Combination meter
Transmits conditions of parking brake switch signal via CAN communication to AWD con-
trol unit.
Receives the following signals via CAN communication from AWD control unit.
• AWD warning lamp signal
• AWD LOCK indicator lamp signal
Steering angle sensor
Transmits conditions of steering angle sensor signal via CAN communication to AWD
control unit.
Component parts
Function
SDIA1607E
Revision: 2008 October
2009 Murano
DLN-8
< FUNCTION DIAGNOSIS >
[TRANSFER: TY20A]
AWD SYSTEM
1.
The AWD control unit supplies command current to electric con-
trolled coupling (AWD solenoid).
2.
The control clutch is engaged by electromagnet and torque is
detected in control clutch.
3.
The cam operates in response to control clutch torque and
applies pressure to main clutch.
4.
The main clutch transmits torque to front wheels according to
pressing power.
• Transmission torque to the rear wheels is determined accord-
ing to command current.
Component Parts Location
INFOID:0000000003302036
SDIA2035E
SDIA1844E
1.
AWD LOCK indicator lamp
2.
AWD warning lamp
3.
AWD lock switch
4.
AWD control unit
5.
AWD solenoid (in rear final drive)
A.
Combination meter
B.
Center console (Front side)
C.
Instrument driver lower cover removed
D.
Rear final drive assembly
JPDIE0052ZZ
Revision: 2008 October
2009 Murano
AWD SYSTEM
DLN-9
< FUNCTION DIAGNOSIS >
[TRANSFER: TY20A]
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Component Description
INFOID:0000000003352080
Component parts
Reference/Function
AWD control unit
Wheel sensors
AWD solenoid
Electric controlled coupling
Transmits driving force to rear final drive.
AWD warning lamp
AWD LOCK indicator lamp
AWD lock switch
ABS actuator and electric unit (control unit)
ECM
Combination meter
Steering angle sensor
Revision: 2008 October
2009 Murano
DLN-10
< FUNCTION DIAGNOSIS >
[TRANSFER: TY20A]
DIAGNOSIS SYSTEM (AWD CONTROL UNIT)
DIAGNOSIS SYSTEM (AWD CONTROL UNIT)
CONSULT-III Function
INFOID:0000000003302038
FUNCTION
CONSULT-III can display each diagnostic item using the diagnostic test modes as follows.
ECU IDENTIFICATION
AWD control unit part number can be read.
SELF -DIAGNOSTIC RESULT
Before performing the self-diagnosis, start the engine and drive vehicle at 30 km/h (19 MPH) or more for
approximately 1 minute.
Display Item List
.
How to Erase Self-Diagnostic Results
Before erasing DTC memory, start the engine and drive at 30 km/h (19 MPH) or more for approximately 1
minute. Check that ABS warning lamp turns OFF.
NOTE:
When AWD warning lamp is ON with system malfunction of DTC “C1203”, run the vehicle at 30 km/h (19
MPH) or more for a minute and check that ABS warning lamp is turned OFF. Then turn ignition switch OFF,
and start the engine again. Otherwise AWD warning lamp may not turned OFF even if it is normal.
DATA MONITOR
Display Item List
ACTIVE TEST
Description
Diagnostic test mode
Function
ECU Identification
AWD control unit part number can be read.
Self Diagnostic Result
Self-diagnostic results can be read and erased quickly.
Data Monitor
Input/Output data in the AWD control unit can be read.
Active Test
Diagnostic Test Mode in which CONSULT-III drives some actuators apart from the AWD control unit
and also shifts some parameters in a specified range.
Monitor item (Unit)
Remarks
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 displayed.
4WD WARN LAMP [On/Off]
Control status of AWD warning lamp is displayed.
4WD MODE SW [AUTO/LOCK]
Mode switch is not equipped, but displayed.
4WD MODE MON [AUTO/LOCK]
Control status of AWD is displayed.
DIS-TIRE MONI [mm]
Improper size tire installed condition is displayed.
P BRAKE SW [On/Off]
Parking switch signal status via CAN communication line 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 solenoid
FR RH SENSOR [km/h] or [mph]
Wheel speed calculated by front RH wheel sensor signal is displayed.
FR LH SENSOR [km/h] or [mph]
Wheel speed calculated by front LH wheel sensor signal is displayed.
RR RH SENSOR [km/h] or [mph]
Wheel speed calculated by rear RH wheel sensor signal is displayed.
RR LH SENSOR [km/h] or [mph]
Wheel speed calculated by rear LH wheel sensor signal is displayed.
Revision: 2008 October
2009 Murano
DIAGNOSIS SYSTEM (AWD CONTROL UNIT)
DLN-11
< FUNCTION DIAGNOSIS >
[TRANSFER: TY20A]
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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-III to check
operation of actuator.
Test Item
CAUTION:
Never energize continuously for a long time.
Test item
Condition
Description
ETS S/V
(Detects AWD solenoid)
• Vehicle stopped
• Engine running
• No DTC detected
Change command current value to AWD solenoid, and then change driving
mode. (Monitor value is normal if it is within approx.
±
10% of command val-
ue.)
• Qu: Increase current value in increments of 0.2 A
• Qd: Decrease current value in increments of 0.2 A
• UP: Increase current value in increments of 0.02 A
• DOWN: Decrease current value in increments of 0.02 A
Revision: 2008 October
2009 Murano
DLN-12
< COMPONENT DIAGNOSIS >
[TRANSFER: TY20A]
C1201 AWD CONTROL UNIT
COMPONENT DIAGNOSIS
C1201 AWD CONTROL UNIT
Description
INFOID:0000000003302039
• Controls driving force distribution by signals from each sensor from front wheel driving mode (100:0) to 4-
wheel driving mode (50:50).
• Front wheel driving conditions is available by fail-safe function if malfunction is detected in AWD system.
DTC Logic
INFOID:0000000003302040
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 “C1201” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003302041
1.
PERFORM SELF-DIAGNOSIS
With CONSULT-III
1.
Erase AWD control unit self-diagnostic results.
2.
Turn the ignition switch OFF, and then wait 10 seconds or more.
3.
Perform AWD control unit self-diagnosis.
Is DTC “C1201” detected?
YES
>> Replace AWD control unit. Refer to
NO
>> Check AWD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace error-detected parts.
DTC
Display item
Malfunction detected condition
Possible cause
C1201
CONTROLLER FAILURE
Malfunction has occurred inside AWD
control unit.
Internal malfunction of AWD control unit
Revision: 2008 October
2009 Murano
C1203 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
DLN-13
< COMPONENT DIAGNOSIS >
[TRANSFER: TY20A]
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C1203 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Description
INFOID:0000000003302042
• Transmits the following signals via CAN communication to AWD control unit.
- Vehicle speed signal
- Stop lamp switch signal (brake signal)
- Yaw rate sensor signal
- Side G sensor signal
- Decel G sensor signal
DTC Logic
INFOID:0000000003302043
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT-III
1.
Start the engine and drive at 30 km/h (19 MPH) or more for approximately 1 minute.
2.
Perform AWD control unit self-diagnosis.
Is DTC “C1203” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003302044
1.
PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
With CONSULT-III
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is any DTC detected?
YES
>> Check the DTC.
NO
>> GO TO 2.
2.
PERFORM SELF-DIAGNOSIS
With CONSULT-III
1.
Erase AWD control unit self-diagnostic results.
2.
Start the engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
3.
Check that ABS warning lamp turns OFF.
4.
Perform AWD control unit self-diagnosis.
Is DTC “C1203” detected?
YES
>> Replace AWD control unit. Refer to
.
NO
>> Check AWD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace error-detected parts.
DTC
Display item
Malfunction detected condition
Possible cause
C1203
ABS SYSTEM
Malfunction related to wheel sensor has
been detected by ABS actuator and
electric unit (control unit).
ABS malfunction
• Malfunction of ABS actuator and elec-
tric unit (control unit)
• Vehicle speed signal error
Revision: 2008 October
2009 Murano
DLN-14
< COMPONENT DIAGNOSIS >
[TRANSFER: TY20A]
C1204 AWD SOLENOID
C1204 AWD SOLENOID
Description
INFOID:0000000003302045
Controls electric controlled coupling by command current from AWD control unit.
DTC Logic
INFOID:0000000003302046
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 “C1204” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003302047
1.
CHECK AWD SOLENOID POWER SUPPLY
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.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Perform the trouble diagnosis for power supply circuit. Refer to
2.
CHECK AWD SOLENOID GROUND
Check the continuity between AWD control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK AWD SOLENOID CIRCUIT
1.
Check the continuity between AWD control unit harness connector and AWD solenoid harness connector.
DTC
Display item
Malfunction detected condition
Possible cause
C1204
4WD SOLENOID
Malfunction related to AWD solenoid has
been detected.
• Internal malfunction of electronic con-
trolled coupling
• Malfunction of AWD solenoid power
supply circuit (open or short)
• Malfunction of AWD solenoid com-
mand current
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
C1204 AWD SOLENOID
DLN-15
< COMPONENT DIAGNOSIS >
[TRANSFER: TY20A]
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2.
Check the continuity between AWD control unit harness connector and the ground.
3.
Check the continuity between AWD solenoid harness connector and the ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
CHECK AWD SOLENOID
Check AWD solenoid. Refer to
DLN-15, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> AWD solenoid is malfunctioning. Replace electric controlled coupling. Refer to
.
5.
CHECK TERMINALS AND HARNESS CONNECTORS
1.
Check AWD control unit pin terminals for damage or loose connection with harness connector.
2.
Check AWD solenoid pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
>> Replace AWD control unit. Refer to
NO
>> Repair or replace error-detected parts.
Component Inspection
INFOID:0000000003302048
1.
CHECK AWD SOLENOID
1.
Turn the ignition switch OFF.
2.
Disconnect AWD solenoid harness connector.
3.
Check the resistance between AWD solenoid harness connector terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> AWD solenoid is malfunctioning. Replace electric controlled coupling. Refer to
.
AWD control unit
AWD solenoid
Continuity
Connector
Terminal
Connector
Terminal
M69
1
C1
1
Existed
2
2
AWD control unit
—
Continuity
Connector
Terminal
M69
1
Ground
Not existed
2
AWD solenoid
—
Continuity
Connector
Terminal
C1
1
Ground
Not existed
2
AWD solenoid
Resistance (Approx.)
Connector
Terminal
C1
1
2
2.45
Ω
Revision: 2008 October
2009 Murano
DLN-16
< COMPONENT DIAGNOSIS >
[TRANSFER: TY20A]
C1205 AWD ACTUATOR RELAY
C1205 AWD ACTUATOR RELAY
Description
INFOID:0000000003302049
AWD solenoid is supplied with voltage by the internal circuit of AWD control unit.
DTC Logic
INFOID:0000000003302050
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 “C1205” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003302051
1.
PERFORM SELF-DIAGNOSIS
With CONSULT-III
1.
Erase AWD control unit self-diagnostic results.
2.
Turn ignition switch OFF, and wait 10 seconds or more.
3.
Perform AWD control unit self-diagnosis.
Is DTC “C1205” detected?
YES
>> Replace AWD control unit. Refer to
NO
>> Check AWD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace error-detected parts.
DTC
Display item
Malfunction detected condition
Possible cause
C1205
4WD ACTUATOR RLY
Malfunction has been detected from
AWD actuator relay integrated with AWD
control unit, or malfunction related to
AWD solenoid has been detected.
Internal malfunction of AWD control unit
Revision: 2008 October
2009 Murano
C1210 ECM
DLN-17
< COMPONENT DIAGNOSIS >
[TRANSFER: TY20A]
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C1210 ECM
Description
INFOID:0000000003302052
Transmits the following signals via CAN communication to AWD control unit.
• Accelerator pedal position signal
• Engine speed signal
DTC Logic
INFOID:0000000003302053
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT-III
1.
Start the engine. Drive the vehicle for a while.
2.
Perform AWD control unit self-diagnosis.
Is DTC “C1210” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003302054
1.
PERFORM ECM SELF-DIAGNOSIS
With CONSULT-III
Perform ECM self-diagnosis.
Is any DTC detected?
YES
>> Check the DTC.
NO
>> GO TO 2.
2.
PERFORM SELF-DIAGNOSIS
With CONSULT-III
1.
Erase AWD control unit self-diagnostic results.
2.
Turn the ignition switch OFF.
3.
Start the engine. Drive the vehicle for a while.
4.
Check that malfunction indicator lamp (MIL) turns OFF.
5.
Stop the vehicle. Perform AWD control unit self-diagnosis.
Is DTC “C1210” detected?
YES
>> Replace AWD control unit. Refer to
.
NO
>> Check AWD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace error-detected parts.
DTC
Display item
Malfunction detected condition
Possible cause
C1210
ENGINE SIGNAL 1
Malfunction related to engine signal has
been detected.
Malfunction of engine control system
Revision: 2008 October
2009 Murano
DLN-18
< COMPONENT DIAGNOSIS >
[TRANSFER: TY20A]
U1000 CAN COMM CIRCUIT
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000003302061
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:0000000003302062
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 “U1000” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003302063
1.
PERFORM SELF-DIAGNOSIS
With CONSULT-III
Perform AWD control unit self-diagnosis.
Is DTC “U1000” detected?
YES
>> CAN specification chart. Refer to
LAN-16, "Trouble Diagnosis Flow Chart"
NO
>> INSPECTION END
DTC
Display item
Malfunction detected condition
Possible cause
U1000
CAN COMM CIRCUIT
AWD control unit is not transmitting/re-
ceiving CAN communication signal for 2
seconds or more.
• CAN communication error
• Malfunction of AWD control unit
Revision: 2008 October
2009 Murano
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