Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Diagnostic Fault Information
Circuit | Short to Ground | Open or High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Information Center Indicator Supply Voltage Circuit | B0968 | 1 | -- | -- |
Information Center Indicator Control Circuits (Rear Left Amber, Center Amber and Red Indicator) | B0968 | 1 | 1 | -- |
1. Information Center Telltale Malfunction | ||||
Circuit/System Description
The object alarm system senses how close the vehicle is to an object. The distance is determined by the 4 ultrasonic sensors located in the rear bumpers. The object detection system will notify the driver when backing up while parking at speeds less than 8 km/h (5 mph). The object alarm system makes parking easier and helps avoid colliding with objects such as parked vehicles. The object alarm system will use the telltale assembly information center indicators and the radio speakers to notify the driver when an object is within the object alarm system field of view. Power is provided to the telltale assembly information center by the object alarm module via the telltale assembly supply voltage circuit. The telltale assembly information center indicators are controlled by the object alarm module via the indicator control circuits. The object alarm module provides the ground for the indicator control circuits.
Reference Information
Schematic Reference
Connector End View Reference
Object Detection Connector End Views
Description and Operation
Object Detection Description and Operation
Electrical Information Reference
Scan Tool Reference
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the object alarm module.
- Ignition ON, with the telltale assembly supply voltage circuit connected to B+, verify that each telltale assembly indicator illuminates when each indicator control circuit terminal(s) B, C and D is connected to ground.
- If all circuits test normal, test or replace the rear object alarm module.
| ⇒ | If one or two indicators of the telltale assembly does not illuminate, test the control circuit(s) for a short to ground or an open/high resistance. If the circuit(s) test normal, replace the telltale assembly information center. |
| ⇒ | If all the indicators of the telltale assembly does not illuminate, test the supply voltage circuit for a short to ground or an open/high resistance. If the circuit(s) test normal, replace the telltale assembly information center. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for the object alarm module replacement, setup, and programming |
