Nissan Rogue Service Manual: U0073 communication bus a OFF

Nissan Rogue Service Manual / Transmission & driveline / Transaxle & Transmission / Dtc/circuit diagnosis / U0073 communication bus a OFF

DTC Description

DTC DETECTION LOGIC

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
U0073	COMM BUS A OFF (Control Module Communication Bus A Off)	TCM communication blockage lasts for 2 seconds or more when turning ON the ignition switch. (Communication not established.)

POSSIBLE CAUSE

Harness or connector (CAN communication line is error)

FAIL-SAFE

Selector shock is large
Start is slow
Acceleration is slow
Lock-up is not performed

DTC CONFIRMATION PROCEDURE

1.PREPARATION BEFORE WORK

If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

Start the engine and wait for at least 5 seconds.
Check the DTC.

Is “U0073” detected? YES >> Go to TM-95, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

For the diagnosis procedure, refer to LAN-17, "Trouble Diagnosis Flow Chart".

Dtc/circuit diagnosis

...

U0100 lost communication (ECM A)

DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition U0100 LOST COMM (ECM A) (Lost Communication With ECM/P ...

Other materials:

Power window retained power operation does not operate properly
Diagnosis Procedure 1.CHECK DOOR SWITCH Check door switch. Refer to DLK-149, "Component Function Check" (with Intelligent Key system) or DLK-319, "Component Function Check" (without Intelligent Key system). Is the inspection result normal? YES >> GO TO 2. NO ...

Range
Principle The range indicates the distance that can still be covered with the current full tank of fuel. General information The estimated range available with the remaining fuel is permanently displayed in the instrument cluster. With a low remaining range, a Check Control message is briefly displ ...

U1000 CAN COMM circuit
Description CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each co ...