2010 Cadillac CTS Sedan AWD V6-3.6L Page 264

2010 Cadillac CTS Sedan AWD V6-3.6L Page 264

programming.

B0968

DTC B0968

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptor

DTC B0968 00

- Parking Aid Indicator Circuit

Diagnostic Fault Information

Circuit/System Description

The rear object sensor control module directly controls the parking assist indicators located in the rear parking assist display. The rear object sensor

control module monitors the voltage supplied to the rear parking assist display to verify it is within operating range. The rear parking assist display

consists of two amber and one red LED that indicate the distance of an object from the rear bumper. As objects become progressively closer to the

bumper, the rear object sensor control module will illuminate the LEDs in a sequence: one amber LED, both amber LEDs, and lastly, both amber

LEDs and the red LED.

Conditions for Running the DTC

* DTC B1325 is not set

* Ignition voltage is between 9-16 volts

* Transmission in REVERSE

Conditions for Setting the DTC

The rear object sensor control module detects that one of the three indicator control circuits or the supply voltage is shorted to ground.

Action Taken When the DTC Sets

* Rear parking assist system is disabled.

* The rear object sensor control module commands the red indicator ON.

* The rear object sensor control module sends a serial data message to the instrument panel cluster (IPC) to display SERVICE PARK ASSIST

message in the driver information center (DIC) and a chime will sound.

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 (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Diagrams/Electrical

Diagrams)

Connector End View Reference