Inspection And Verification: Notes

CAUTION: If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the warranty policy and procedures manual (section B1.2), or determine if any prior approval program is in operation, prior to the installation of a new module/component.

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 checked and/or the donor vehicle.

CAUTION: Do not apply any grease based products to any parking aid system connector or pins.

NOTE: Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system)

NOTE: When performing electrical voltage or resistance tests, always use a digital multimeter (DMM) accurate to three decimal places, and with an up-to-date calibration certificate. When testing resistance, always take the resistance of the DMM leads into account.

NOTE: Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.

NOTE: Inspect connectors for signs of water ingress, and pins for damage and/or corrosion.

NOTE: If diagnostic trouble codes are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent concern may be the cause. Always check for loose connections and corroded terminals.

Verify the customer concern.
Visually inspect for obvious signs of mechanical or electrical damage.

Ensure that the parking aid sensor face is clear of contamination that could affect the performance of the sensor.

Visual Inspection

Mechanical	Electrical
Parking aid sensor condition/damaged Parking aid sensor installation and holder Parking aid sensor alignment Parking aid sensor contamination Bumper cover(s) Vehicle ride height Non standard/non manufacturer approved accessories fitted	Battery Fuse(s) Relays Wiring harness Electrical connector(s) Front parking aid sensor(s) Rear parking aid sensor(s) Parking aid switch and LED Parking aid control module Parking aid sounder Audio system

If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.
Check DDW for open campaigns. Refer to the corresponding bulletins and SSM's which may be valid for the specific customer complaint and carry out the recommendations as needed.