Diesel Data: Automotive Repair

NAV Messages Not Received - Amplifier






NAV MESSAGES NOT RECEIVED - AMPLIFIER

For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:

With the ignition on.

- Set Condition:

The module does not receive any messages from the navigation module.





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. AMPLIFIER

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

No

- Test Complete.