Circuit/System Verification
- Observe the scan tool Park Assist parameter while putting the gear in reverse. The parameter should change between Active and Inactive.
- If the parameter does not change between the specified values, refer to Parking Assist Circuit Malfunction .
- For vehicles with manual transmission: Transmission in reverse, verify the Engine Control Module (ECM) scan tool Reverse Position Switch parameter is Active.
- If not the specified value, refer to Backup Lamps Malfunction .
- Transmission in REVERSE, verify the scan tool Park Assist System Status parameter displays Enable.
- If not the specified value, refer to Diagnostic Aids to determine the cause of the inhibit.
NOTE:
After completing the next step the vehicle might need to be driven in the forward direction at speed greater than 40 km/h (25 MPH).