DTC C12F6 Chevrolet
Navigation ECU Communication Malfunction
Navigation ECU Communication Malfunction
Description
The navigation display head (NDH) must detect a power mode transition from the OFF-ASLEEP state to one of the following: ACC ON
Cause and Solution
Test for intermittent shorts and opens on the navigation display serial data high circuit and the navigation display serial data low circuit. Test for intermittent shorts and opens on the navigation module (NAV) supply and ground circuits. Refer to Testin
Video Guide
Diagnostic Info
- DTC Code: C12F6
- Brand: Chevrolet