Lost Communication With OCM (Gateway Module)

LOST COMMUNICATION WITH OCM (GATEWAY MODULE)





For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
Continuously.

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





Diagnostic Test

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

Yes

- Go To2

No

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

2. CHECK FOR ADDITIONAL COMMUNICATION RELATED DTC'S
With the scan tool, select Network View and select Advanced.
Is there more than one module with active DTC's "Logged Against" the OCM?

Yes

- Replace/update the OCM.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.

No

- Replace/update the module that set this DTC.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.