For 1990-2009 cars

### 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

### DTC Descriptor

DTC B0968 00: Park Assist Indicator Circuit Malfunction

### Circuit/System Description

The park assist switch is equipped with a light that indicates when the park assist system is enabled or disabled. When the park assist system is enabled the light is turned on.

### Conditions for Running the DTC

• | DTC B1325 is not set

• | Ignition is in RUN mode

### Conditions for Setting the DTC

The object alarm module detects a malfunction with the park assist switch light.

### Action Taken When the DTC Sets

• | The park assist system is disabled.

• | The park assist switch light will not turn on.

### Conditions for Clearing

• | The object alarm module clears the history DTC when a current DTC is not detected in 100 ignition cycles.

• | The condition for the DTC is no longer present.

### Reference Information

#### Schematic Reference

Object Detection Schematics

#### Connector End View Reference

Component Connector End Views

#### Description and Operation

Object Detection Description and Operation

#### Electrical Information Reference

• | Circuit Testing

• | Testing for Intermittent Conditions and Poor Connections

• | Wiring Repairs

• | Connector Repairs

#### Scan Tool Reference

Control Module References for scan tool information

### Circuit/System Verification

Park brake OFF, transmission in REVERSE, the park assist switch light should turn on.

### Circuit/System Testing

1. Ignition OFF, disconnect the park assist switch.
2. Test for less than 5 Ω between the low reference circuit terminal 8 and ground.

⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. If the circuit tests normal, replace the object alarm module.

3. Ignition ON, transmission in REVERSE, test for 1.7 - 3.3 V between the voltage reference circuit terminal 7 and ground.

⇒ | If greater than the specified range, test the voltage reference circuit for a short to voltage. If the circuit tests normal, replace the body control module.

⇒ | If less than the specified range, test the voltage reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the body control module.

4. If the circuit tests normal, replace the park assist switch.

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for body control module replacement, setup, and programming