Nissan Murano: Dtc/circuit Diagnosis / U0101 Can Comm Circuit
DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-Nissan Murano vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a Nissan Murano 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 transmits/receives data but selectively reads required data only.
DTC DETECTION LOGIC
When ECM is not transmitting or receiving CAN communication signal of OBD (emission-related diagnosis) with TCM for 2 seconds or more.
| DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition | |
| U0101 |
LOST COMM (TCM) (Lost Communication with TCM) |
Diagnosis condition | Ignition switch ON |
| Signal (terminal) | CAN communication signal | ||
| Threshold | ECM is not transmitting or receiving CAN communication signal of OBD (emission-related diagnosis) with TCM. | ||
| Diagnosis delay time | 2 seconds or more | ||
POSSIBLE CAUSE
-
CAN communication line between TCM and ECM
-
CAN communication line open or shorted
FAIL-SAFE
| Engine operating condition in fail-safe mode | ||
|---|---|---|
| Fail safe mode | Nissan Murano Vehicle behavior | |
| CAN communication line | ECM operates active grille shutter to fully-open position. | |
PERFORM DTC CONFIRMATION PROCEDURE
-
Turn ignition switch ON and wait at least 3 seconds.
-
Check DTC.
Is DTC detected?
YES>>Proceed to Diagnosis Procedure.
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: INSPECTION END
Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow .
C053c Wheel Speed Sensor
DTC Description
DTC DETECTION LOGIC DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
C053C
Wheel speed sensor
(Wheel speed sensor generic range/performance)
Diagnosis condition
Engine running
Signal
Nissan Murano Vehicle speed signal
Threshold
Wheel sensor signal is invalid...
U0284 Active Grille Shutter
DTC Description
DTC DETECTION LOGICWhen ECM cannot receive the engine communication signal from active grille shutter. DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
U0284
LOST COMM (A/GRLL SHTTR MDL A)
(Lost communication with active grille air shutter module A)
Diagnosis condition
Ignition switch ON
Signal (terminal)
Engine communication signal
Threshold
ECM cannot receive the engine communication signal from active grille shutter
Diagnosis delay time
—
POSSIBLE CAUSE
Harness and connectors (Engine communication line is open or circuit shorted...
Other information:
Nissan Murano (Z52) 2015-2024 Service Manual: System
System Description SYSTEM DIAGRAMDISTANCE SENSOR (ICC SENSOR) INPUT/OUTPUT SIGNAL ITEMInput Signal Item Transmit unit Signal name Description ADAS control unit ITS communication ADAS sensor signal State of ADAS Output Signal Item Reception unit Signal name Description ADAS control unit ITS communication Distance sensor (ICC sensor) signal Transmits information for ICC ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEMInput Signal Reception unit Signal name Description ECM CAN communication Engine speed signal Receives engine speed Accelerator pedal position signal Receives accelerator pedal position (angle) Closed throttle position signal Receives idle position state (ON/OFF) ICC prohibition signal Receives operable/inoperable state of the ICC system ICC steering switch signal Main switch signal Receives the operational state of the ICC steering switch SET/COAST switch signal CANCEL switch signal RESUME/ACCELERATE switch signal DISTANCE switch signal Stop lamp switch signal Receives an operational state of the brake pedal Brake pedal position switch signal Receives an operational state of the brake pedal TCM CAN communication Input speed signal Receives the number of revolutions of input shaft Output shaft revolution signal Receives the number of revolutions of output shaft Current gear position signal Receives a current gear position Shift position signal Receives a selector lever position 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 ABS warning lamp signal Receives an ON/OFF state of ABS warning lamp 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 an 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 Stop lamp switch signal Receives an operational state of the brake pedal Yaw rate signal Receives yaw rate acting on 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 AEB system 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 and turning direction of the steering wheel Steering angle speed signal Receives the turning angle speed of the steering wheel Distance sensor (ICC sensor) ITS communication Distance sensor (ICC sensor) signal Receives detection information, such as the presence or absence of a leading Nissan Murano vehicle, and distance from the vehicle...
Nissan Murano (Z52) 2015-2024 Service Manual: Lock-Up Control
System Description SYSTEM DIAGRAMDESCRIPTION Controls for improvement of the transmission efficiency by engaging the torque converter clutch in the torque converter and eliminating slip of the converter. Achieves comfortable driving with slip control of the torque converter clutch...
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Driver and passenger supplemental knee air bag
Driver’s side
The knee air bag is located in the knee bolster, on the driver’s and passenger’s side. All of the information, cautions and warnings in this manual apply and must be followed. The knee air bag is designed to inflate in higher severity frontal collisions, although it may inflate if the forces in another type of collision are similar to those of a higher severity frontal impact. It may not inflate in certain collisions.
Passenger’s side
