B0968

DTC B0968

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructionsprovides an overview of each diagnostic category.

DTC Descriptor
DTC B0968 00
- Parking Aid Switch Indicator Circuit

Circuit/System Description

The parking assist system can be disabled by pressing the parking assist disable switch. When the parking assist system is disabled the object alarm module will ground the parking assist disable indicator control circuit, illuminating the indicator.

Conditions for Running the DTC

* DTC B1325 is not set
* Ignition voltage is between 9-16 volts

Conditions for Setting the DTC

The object alarm module detects the parking assist disable indicator control circuit is shorted to ground, shorted to voltage or open.

Action Taken When the DTC Sets

* The parking assist system is disabled.
* The object alarm module sends a serial data message to the instrument panel cluster (IPC) to display SERVICE PARK ASSIST message in the driver information center (DIC).

Conditions for Clearing

* The DTC will transition to history when the fault is no longer present.
* A history DTC will clear after 100 malfunction-free ignition cycles.

Reference Information
Schematic Reference

Object Detection Schematics [1][2]Collision Avoidance and Parking Assist Systems
Connector End View Reference

Component Connector End Views Connector End Views By Name
Description and Operation

Object Detection Description and Operation
Electrical Information Reference

* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs

Scan Tool Reference

Control Module References Programming and Relearningfor scan tool information

Circuit/System Verification

Ignition ON, observe the scan tool Park Assist Switch LED parameter while pressing and releasing the park assist disable switch. The parameter should change between On and Off.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the I/P multifunction switch.
2. Ignition ON, verify a test lamp illuminates between the appropriate ignition circuit listed below and ground:

* RPO X88/Z88 ignition circuit terminal 6
* RPO Z75 ignition circuit terminal 4

• If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.

3. Ignition OFF, connect the harness connector at the I/P multifunction switch. Disconnect the X1 harness connector at the object alarm module.
4. Ignition ON, verify the park assist disable LED is not illuminated.

• If the LED is illuminated, test the control circuit for a short to ground. If the circuit tests normal, test or replace the I/P multifunction switch.

5. Install a 10A fused jumper wire between the control circuit terminal 3 and ground. Verify that the park assist disable LED is illuminated.

• If the LED is not illuminated, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or replace the I/P multifunction switch.

6. If all circuits test normal, replace the object alarm module.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

* Rear Parking Assist Alarm Control Module Switch Replacement
* Control Module References Programming and Relearningfor Object Alarm Module replacement, setup, and programming.