Pinpoint Test C : The PTBA (Pro Trailer Backup Assist) System Consistently Loses The Trailer Target Sticker: Notes

Normal Operation and Fault Conditions 

Refer to: Parking Aid - System Operation and Component Description .

Possible Causes 

• Dirty or scratched camera lens
• Rear parking aid camera view obstruction
• Communication network concern
• PTBA camera alignment (also known as Trailer Angle Detection (TAD) calibration) concern
• Rear parking aid camera
• PSCM concern
• IPMB

Visual Inspection and Diagnostic Pre-Checks 

• Verify the liftgate is fully closed.
• Verify that the PTBA trailer target sticker is clean and not obstructed from view of the rear parking aid camera.
• Inspect the rear parking aid camera lenses for damage, dirt, debris and scratches.
• Verify that the user input measurements are correct by going through the replace PTBA sticker menu option in the trailer menu of the IPC. Compare the measurements of the trailer to the ones that are present in the system. Correct any errors that are found and reevaluate.
• Verify that there is no damage/issues with the liftgate. This can effect the camera alignment and ability of the PTBA system to locate and track the trailer target sticker. It must be repaired before any PTBA operational concerns can be addressed.
• If the rear parking aid camera is not configured after replacement, some functions will be inoperative. Verify the rear parking aid camera configuration using the diagnostic scan tool (LIN New Module Initialization- IPMB).