Nissan Murano: Dtc/circuit Diagnosis / Its Can Communication Circuit
Diagnosis Procedure
CHECK CAN DIAGNOSIS
Check the CAN diagnosis results from CONSULT to see that the Nissan Murano vehicle CAN communication circuit has no malfunction.
Are the vehicle CAN communication circuits normal?
YES>>
GO TO 2.
NO>>
Check and repair Nissan Murano vehicle CAN communication circuit.
CONNECTOR INSPECTION
-
Turn the ignition switch OFF.
-
Disconnect the battery cable from the negative terminal.
-
Check the terminals and connectors of the ADAS control unit for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
YES>>
GO TO 3.
NO>>
Repair the terminal and connector.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
-
Disconnect the ADAS control unit harness connector.
-
Check the continuity between the ADAS control unit harness connector terminals.
| ADAS control unit harness connector |
Continuity |
| Connector No. |
Terminal No. |
| M182 |
15 |
20 |
Existed |
| 3 |
19 |
Existed |
Is the inspection result normal?
YES>>
GO TO 4.
NO>>
Repair the ADAS control unit branch line. (ITS CAN communication circuit side).
CHECK HARNESS CONTINUITY (SHORT CIRCUIT)
-
Disconnect all the unit connector on ITS CAN communication system.
-
Check the continuity between the ADAS control unit harness connector terminals.
| ADAS control unit harness connector |
Continuity |
| Connector No. |
Terminal No. |
| M182 |
15 |
3 |
Not existed |
Is the inspection result normal?
YES>>
GO TO 5.
NO>>
Check the harness and repair the root cause.
CHECK HARNESS CONTINUITY (SHORT CIRCUIT)
Check the continuity between the ADAS control unit harness connector and the ground.
| ADAS control unit harness connector |
Ground |
Continuity |
| Connector No. |
Terminal No. |
| M182 |
15 |
Not existed |
| 3 |
Not existed |
Is the inspection result normal?
YES>>
GO TO 6.
NO>>
Check the harness and repair the root cause.
CHECK TERMINATION CIRCUIT
-
Remove the ADAS control unit.
-
Check the resistance between the ADAS control unit terminals.
| ADAS control unit |
Resistance (Ω) |
| Terminal No. |
| 15 |
3 |
Approx. 108 – 132 |
| 20 |
19 |
Approx. 108 – 132 |
Is the inspection result normal?
YES>>
GO TO 7.
NO>>
Replace the ADAS control unit.
CHECK SYMPTOM
Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.
Inspection result
Reproduced>>
GO TO 8.
NO>>
Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
CHECK UNIT REPRODUCTION
Perform the reproduction test as per the following procedure for each unit.
-
Turn the ignition switch OFF.
-
Disconnect the battery cable from the negative terminal.
-
Disconnect one of the unit connectors of ITS CAN communication circuit.
NOTE:
ADAS control unit has two termination circuits. Check other units first.
-
Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.
NOTE:
Although unit-related error symptoms occur, do not confuse them with other symptoms.
Inspection result
Reproduced>>
Connect the connector. Check other units as per the above procedure.
NO>>
Replace the unit whose connector was disconnected.
Diagnosis Procedure
CONNECTOR INSPECTION
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side)...
Diagnosis Procedure
CHECK CAN DIAGNOSIS
Check the CAN diagnosis results from CONSULT to see that the Nissan Murano vehicle CAN communication circuit and ITS CAN communication circuit have no malfunction...
Other information:
DTC Description
DTC DETECTION LOGIC DTC No. CONSULT screen terms DTC detection condition
C1A18–54
LASER AIMING INCMP
Diagnosis condition
When Ignition switch is ON.
Signal (terminal)
—
Threshold
The radar of the distance sensor (ICC sensor) is not adjusted
Diagnosis delay time
—
POSSIBLE CAUSE
The adjustment of the radar is not yet performed
Interruption in radar adjustment
FAIL-SAFEThe following systems are canceled:
Intelligent Cruise Control
Automatic Emergency Braking (AEB)
Intelligent Forward Collision Warning (I-FCW)
DTC Confirmation Procedure
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
Start the engine...
System Description
SYSTEM DIAGRAMADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEMInput Signal Item Transmit unit Signal name Description
ECM
CAN communication
Brake pedal position switch signal
Receives Brake pedal position switch state
Accelerator pedal position signal
Receives accelerator pedal position (angle)
Stop lamp switch signal
Receives stop lamp switch state
Engine speed signal
Receives engine speed
TCM
CAN communication
Input speed signal
Receives the number of revolutions of input shaft
Current gear position signal
Receives a current gear position
Shift position signal
Receives a selector lever position
Output shaft revolution signal
Receives the number of revolutions of output shaft
ABS actuator and electric unit (control unit)
CAN communication
ABS malfunction signal
Receives a malfunction state of ABS
ABS operation signal
Receives an operational state of ABS
TCS malfunction signal
Receives a malfunction state of TCS
TCS operation signal
Receives an operational state of TCS
VDC OFF switch signal
Receives an ON/OFF state of VDC
VDC malfunction signal
Receives a malfunction state of VDC
VDC operation signal
Receives an operational state of VDC
Nissan Murano Vehicle speed signal (ABS)
Receives wheel speeds of four wheels
Yaw rate signal
Receives yaw rate acting on the Nissan Murano vehicle
Side G sensor signal
Receives lateral G acting on the Nissan Murano vehicle
Combination meter
CAN communication
Parking brake switch signal
Receives an operational state of the parking brake
System selection signal
Receives a selection state of each item in "Driver Assistance"
BCM
CAN communication
Turn indicator signal
Receives an operational state of the turn signal lamp and the hazard lamp
Steering angle sensor
CAN communication
Steering angle sensor malfunction signal
Receives a malfunction state of steering angle sensor
Steering angle sensor signal
Receives the number of revolutions, turning direction of the steering wheel
Steering angle speed signal
Receives the turning angle speed of the steering wheel
Lane intervention switch
Lane intervention switch signal
Receives an ON/OFF state of the lane intervention switch
Lane camera unit
ITS communication
Detected lane condition signal
Receives detection results of lane marker
Output Signal Item Reception unit Signal name Description
ABS actuator and electric unit (control unit)
CAN communication
Target yaw moment signal
Transmits a target yaw moment signal to generate yaw moment to the Nissan Murano vehicle
Combination meter
CAN communication
Intelligent Lane Intervention ON indicator lamp signal
Transmits an Intelligent Lane Intervention ON indicator lamp signal to turn ON the Intelligent Lane Intervention ON indicator lamp
Lane departure warning lamp signal
Transmits an lane departure warning lamp signal to turn ON the lane departure warning lamp
Lane camera unit
ITS communication
Nissan Murano Vehicle speed signal
Transmits a vehicle speed calculated by the ADAS control unit
Turn indicator signal
Transmits a turn indicator signal received from BCM
Steering assist system ON indicator
Steering assist system ON indicator signal
Turns ON the steering assist system ON indicator
Intelligent Lane Intervention system ON indicator
Intelligent Lane Intervention system ON indicator signal
Turns ON the Intelligent Lane Intervention system ON indicator
Warning system buzzer
Warning buzzer signal
Activates warning system buzzer...