Nissan Rogue Service Manual: 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".
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 generation voltage variable control system operation
inspection
Diagnosis Procedure
Regarding Wiring Diagram information. Refer to CHG-7, "Wiring Diagram".
CAUTION:
When performing this inspection, always use a charged battery that has completed
the battery inspection.
(When the charging rate of the battery is low, the response speed of the vol ...
The seat belt reminder warning continues sounding, or
does not sound
Description
Seat belt warning does not sound even though driver seat belt is not
fastened.
Seat belt warning sounds even though driver seat belt is fastened.
Diagnosis Procedure
1.CHECK WARNING CHIME OPERATION
Select "BUZZER" of "BCM" on "CONSULT" ...
Additional service when replacing TCM and transaxle assembly
Description
When replacing TCM and transaxle assembly simultaneously, perform the
following work.
TCM PROGRAMMING
Since vehicle specifications are not yet written in a new TCM, it
is necessary to write them with CONSULT.
CAUTION:
When replacing TCM, save TCM data on CONSULT be ...
