No Communication With NAV - Radio

NO COMMUNICATION WITH NAV - RADIO

For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:

With the ignition on.

- Set Condition:

The module misses 5 successive periodic messages or has not received an in-frame response after 3 consecutive retries.





Diagnostic Test

1. ATTEMPT TO COMMUNICATE WITH THE NAVIGATION MODULE

Turn the ignition on.

With the scan tool, attempt to communicate with the navigation module.

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

Yes

- Go To 2

No

- Refer to the Communication category for the related symptom(s).
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

2. RADIO

With the scan tool, erase DTC's.

Cycle the ignition switch from off to on and wait approximately 1 minute.

With the scan tool, read DTC's.

Did this DTC reset?

Yes

- Replace the Radio.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Test complete.