Circuit/System Testing

Manual Transmission

1. Engine running, transmission in REVERSE.
2. Verify the scan tool Calculated Transmission Range parameter is Reverse.
   • If parameter is not Reverse 

     Refer to Backup Lamps Malfunction (Automatic Transmission)Backup Lamps Malfunction (Manual Transmission) .

   • If parameter is Reverse 
3. Verify the scan tool Park Assist System Status parameter displays Enable.
   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).

   • If status is not Enable 

     Refer to Diagnostic Aids and the scan tool Park Assist Disable History parameters to determine the cause of the inhibit.

   • If status is Enable 
4. Replace the K41R Rear Parking Assist Control Module.

Automatic Transmission

1. Engine running, transmission in REVERSE.
2. Verify the scan tool Park Assist System Status parameter displays Enable.
   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).

   • If status is not Enable 

     Refer to Diagnostic Aids and the scan tool Park Assist Disable History parameters to determine the cause of the inhibit.

   • If status is Enable 
3. Replace the K41R Rear Parking Assist Control Module.