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. Awd System
System Description SYSTEM DIAGRAMINPUT SIGNAL AND OUTPUT SIGNALIt transmits/receives each signal from the following AWD control unit via CAN communication line: Component parts Function ABS actuator and electric unit (control unit) Transmits the following signals via CAN communication to AWD control unit: Nissan Murano 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 TCM Transmits the following signals via CAN communication to AWD control unit: Input shaft revolutional signal CVT ratio signal Combination meter Transmits conditions of parking brake switch signal via CAN communication to AWD control unit...
Nissan Murano (Z52) 2015-2024 Service Manual: Unit Removal and Installation. Rear Final Drive Assembly
Exploded View 1. Final drive bracket 2. Stopper 3. Rear final drive assembly Removal and Installation NOTE: When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling. Before replacing, servicing, or repairing rear final drive assembly due to vibration and/or noise when making low speed turns, refer to TSB to assist in proper diagnosis...
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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
