For 1990-2009 cars

## Symptoms - Trailer Connector/Provision Holden Genuine Accessory

Important: Review the system operation in order to familiarize yourself with the system functions. Refer to the following:

• | Exterior Lighting Systems Description and Operation

• | Object Detection Description and Operation

### Visual/Physical Inspection

• | If the vehicle is fitted with a genuine Holden object detection system, opening the trailer connector cover actuates a switch that disables the rear object detection system. Damage to the trailer connector or to the trailer connector cover may disable the object detection system.

• | Inspect for other aftermarket devices which could affect the operation of the system. Refer to Checking Aftermarket Accessories.

• | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

### Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections.

### Symptom List

Refer to the following in order to diagnose the symptom:

• | Trailer Lamps Malfunction

• | Trailer Connector Switch Malfunction