Collision Avoidance and Parking Assist Systems: Testing and Inspection

Parking Aid

Principle of Operation

Inspection and Verification

CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.

1. Verify the customer concern.
2. Visually inspect for obvious signs of damage and system integrity.

NOTE: Particular attention should be paid to the following items where DTCs may not be logged:
- Check for contamination (e.g. dirt, grime, frosting, ice) around the parking aid sensors, if so refer to the parking aid section in the vehicle handbook.
- Check for the correct installation and alignment of the sensors to the bumper
- Spurious detection of the ground may occur during front system operation on an up-slope

Electrical
- Fuse(s)
- Relay(s)
- Wiring Harness
- Electrical connector(s)
- Front parking aid sensor(s) and holders
- Rear parking aid sensor(s) and holders
- Audio system
- Touch screen display unit
- Parking aid switch and LED
- Reversing lamp switch
- Parking aid module

3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the cause is not visually evident, check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.