Possible Causes
NOTE:
Circuit reference GPS SIG/GPS SCRN
- Navigation antenna not connected to the integrated audio module
- Navigation antenna circuit open circuit
NOTE:
This DTC may be set even though no fault condition is present and should be ignored unless the customer has reported a navigation system concern. Clear the DTC and retest. Verify the customer concern prior to diagnosis
- Confirm that the navigation antenna is connected to the integrated audio module
- Refer to the appropriate system wiring diagrams and check the navigation antenna circuit for open circuit