Nissan Rogue (T33) 2021-Present Service Manual: U007a-00 Control Module Comm Bus H Off
DTC Description
DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-Nissan Ariya vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern Nissan Ariya vehicle is equipped with many electronic control unit, 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-High line, CANLow line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only. CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | |
|---|---|---|---|
| U007A-00 |
Control module comm Bus H Off (Control module communication Bus H Off) |
Diagnosis condition | Engine running at idle |
| Signal (terminal) | CAN communication signal | ||
| Threshold | Sub starter & generator cannot communicate CAN communication signal | ||
| Diagnosis delay time | 2 second or less | ||
POSSIBLE CAUSE
CAN communication system
FAIL-SAFE
Inhibit the idle start/stop system
DTC CONFIRMATION PROCEDURE
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
-
Start the engine and let it idle and wait for 2 seconds or more.
-
Select “Self diagnosis result” mode of “Sub starter & generator”.
Is DTC detected?
YES>>Refer to Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: Inspection End.
Diagnosis Procedure
CHECK CAN COMMUNICATION SYSTEM
Check CAN communication. Refer to Trouble Diagnosis Flow Chart.
>>
Inspection End.
Other materials:
Operation
Switch Name and Function
OPERATION AND DISPLAY OF MANUAL AIR CONDITIONING SYSTEMOperation: A/C switch assembly 1.
Fan control dial
2.
DEF switch
3.
Rear window defogger switch
4.
Intake switch
5.
Temperature control dial
6.
D/F switch
7.
FOOT switch
8. ...
Evtc Branch Line Circuit
Diagnosis Procedure
CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the electric intake valve
timing control module for damage, bend and loose connection (unit side
and connector side).
...
Symptom Diagnosis. Noise, Vibration and Harshness (nvh) Troubleshooting
NVH Troubleshooting Chart
Use chart below to find the cause of the symptom. If necessary, repair or replace these parts. Possible cause and SUSPECTED PARTS Symptom Reference
REAR SUSPENSION
Noise Shake Vibration Shimmy Judder Poor quality ride or handling
Improper installation, loos ...