B0968

DTC B0967 or 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 Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC B0967 02
- Parking Assist On/Off Switch Circuit Short to Ground

DTC B0968 01
- Parking Assist On/Off Switch Indicator Circuit Short to Battery

DTC B0968 06
- Parking Assist On/Off Switch Indicator Circuit Low Voltage/Open

Circuit/System Description

The parking assist can be activated/deactivated by pressing the parking assist switch. By engaging the reverse gear the parking assist can also be activated. By subsequently pressing the parking assist switch the parking assist can be disabled again.

The indicator in the parking assist switch shows the status of the parking assist. If the lamp is ON, the parking assist is activated.

Conditions for Running the DTC

* Ignition ON

* The parking assist is activated. The activation takes place by putting in the reverse gear or by pressing the parking assist switch.

Conditions for Setting the DTC

B0967 02

The parking assist control module has detected a short to ground.

B0968 01

The parking assist control module has detected a short to battery.

B0968 06

The parking assist control module has detected a short to ground or open.

Action Taken When the DTC Sets

* The parking assist is disabled.

* The driver information center displays SERVICE PARK ASSIST.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

Object Detection Schematics [1][2]Collision Avoidance and Parking Assist Systems

Connector End View Reference

Component Connector End Views Sunshade - Left

Description and Operation

Object Detection Description and Operation 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 Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.

2. Verify that DTC B0967 02 is not set.

• If the DTC is set
Refer to Parking Assist Switch Malfunction.

• If the DTC is not set

3. Verify that B0968 01 or B0968 06 is not set.

• If the DTC is set
Refer to Parking Assist Switch Indicator Malfunction.

• If the DTC is not set

4. Activate and deactivate the parking assist switch and verify the scan tool Park Assist Switch parameter changes between Active and Inactive.

• If the Parking Assist Switch parameter does not change between Active and Inactive
Refer to Circuit/System Testing.

• If the Parking Assist Switch parameter changes between Active and Inactive

5. All OK.

Circuit/System Testing

Parking Assist Switch Malfunction

1. Ignition OFF, disconnect the harness connector at the S48D Multifunction Switch 2 - Instrument Panel.

2. Test for less than 10 ohms between the S48D Multifunction Switch 2 - Instrument Panel terminal 1 and ground.

• If 10 ohms or greater

1. Ignition OFF.

2. Test for less than 2 ohms in the ground circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the ground circuit.

• If less than 2 ohms, repair the open/high resistance in the ground connection.

• If less than 10 ohms

3. Connect a test lamp between the control circuit terminal 5 and ground circuit terminal 1.

4. Verify the test lamp turns On and Off when commanding the Parking Assist Switch On and Off with a scan tool.

• If the test lamp is always OFF

1. Ignition OFF, disconnect the harness connector at the K41R Rear Parking Assist Control Module.

2. Test for infinite resistance between the control circuit and ground.

• If less than infinite resistance, repair the short to ground in the circuit.

• If infinite resistance

3. Test for less than 2 ohms in the control circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If less than 2 ohms, replace the K41R Rear Parking Assist Control Module.

• If the test lamp is always ON

1. Ignition OFF, disconnect the harness connector at the K41R Rear Parking Assist Control Module, ignition ON.

2. Test for less than 1 V between the control circuit and ground.

• If 1 V or greater, repair the short to voltage on the circuit

• If less than 1 V, replace the K41R Rear Parking Assist Control Module.

• If the test lamp turns ON and OFF

5. All OK.

Parking Assist Switch Indicator Malfunction

1. Ignition OFF, disconnect the harness connector at the S48D Multifunction Switch 2 - Instrument Panel.

2. Test for less than 10 ohms between the S48D Multifunction Switch 2 - Instrument Panel terminal 1 and ground.

• If 10 ohms or greater

1. Ignition OFF.

2. Test for less than 2 ohms in the ground circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If less than 2 ohms, repair the open/high resistance in the ground connection.

• If less than 10 ohms

3. Connect a test lamp between the voltage circuit terminal 6 and ground circuit terminal 1.

4. Verify the test lamp turns ON and OFF when Commanding the Parking Assist Switch On and Off with a scan tool.

• If the test lamp is always OFF

1. Ignition OFF, disconnect the harness connector at the K41R Rear Parking Assist Control Module.

2. Test for infinite resistance between the voltage circuit and ground.

• If less than infinite resistance, repair the short to ground in the circuit.

• If infinite resistance

3. Test for less than 2 ohms in the control circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If less than 2 ohms, replace the K41R Rear Parking Assist Control Module.

• If the test lamp is always ON

1. Ignition OFF, disconnect the harness connector at the K41R Rear Parking Assist Control Module, ignition ON.

2. Test for less than 1 V between the voltage circuit and ground.

• If 1 V or greater, repair the short to voltage on the circuit.

• If less than 1 V, replace the K41R Rear Parking Assist Control Module.

• If the test lamp turns ON and OFF

5. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair

* Rear Object Alarm Control Module Replacement Service and Repair

* Control Module References Control Module References for parking assist control module replacement, programming and setup.