FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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NAV Messages Not Received - Amplifier







NAV MESSAGES NOT RECEIVED - AMPLIFIER

For a complete wiring diagram Consult 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 To2

No

- REFER TO COMMUNICATION . No Response From Navigation Module (NAV)
- 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.