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 B0967 02: Park Assist Switch Circuit Short to Ground

### Circuit/System Description

The object detection park assist switch allows the driver to enable or disable the park assist system. The park assist switch is supplied voltage from the object alarm module. When the park assist system is enabled low reference is provided to the switch activating the park assist system.

### 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.

### Action Taken When the DTC Sets

• | The park assist system is enabled when transmission is in DRIVE or REVERSE.

• | The park assist switch will not disable the park assist system when commanded by the switch.

### 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, using the park assist switch enable and disable the park assist system. Verify the park assist system enables and disables respectively.

### Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the park assist switch.
2. Test for less than 5 Ω between the ground circuit terminal 2 and ground.

⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. If the circuit tests normal, replace the park assist switch.

3. Ignition ON, transmission in REVERSE, test for 4.0 - 6.0 V between the voltage reference circuit terminal 5 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 object alarm 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 object alarm 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 park assist module replacement, setup, and programming