Lost Communication With OCM

LOST COMMUNICATION WITH OCM





For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams

- When Monitored:
Continuously.

- Set Condition:
The Gateway module does not receive any messages from the OCM.





1. ATTEMPT TO COMMUNICATE WITH THE OCM
1. Turn the ignition on.
2. With the scan tool, select ECU View.
3. Verify that the OCM is active on the bus.

Is the OCM active on the bus?

Yes

- Go To 2

No

- Perform the No Response diagnostic procedure. Communications - Verbose Codes

2. CHECK FOR ADDITIONAL COMMUNICATION RELATED DTC'S
1. With the scan tool, select Network View and select Advanced.

Is there more than one module with active DTCs "Logged Against" the OCM?

Yes

- Replace/update the OCM.
- Perform the BODY VERIFICATION TEST. Body Verification Test

No

- Replace/update the module that set this DTC.
- Perform the BODY VERIFICATION TEST. Body Verification Test