No Communication With BCM

NO COMMUNICATION WITH BCM

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

- When Monitored:
With the ignition in run, and the IOD fuse installed.





1. ATTEMPT TO COMMUNICATE WITH THE BCM
1. Turn the ignition on.
2. With the scan tool, attempt to communicate with the BCM.

Was the scan tool able to I/D or communicate with the BCM?

Yes

- Go To 2

No

- Refer to the Communication category for the related symptom(s).
- Perform BODY VERIFICATION TEST. Body Verification Test

2. RADIO
1. With the scan tool, erase DTC's.
2. Cycle the ignition switch from off to on and wait approximately 1 minute.
3. With the scan tool, read DTC's.

Did this DTC reset?

Yes

- Replace the Radio.
- Perform BODY VERIFICATION TEST. Body Verification Test

No

- Test Complete.
- Perform BODY VERIFICATION TEST. Body Verification Test