Chevrolet Trax: DTC B0987: Vehicle direction camera indicator

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 Descriptors

DTC B0987 01

Vehicle Direction Camera Indicator Circuit Short to Battery

DTC B0987 06

Vehicle Direction Camera Indicator Circuit Low Voltage/Open

DTC B0987 0B

Vehicle Direction Camera Indicator Circuit High Current

Diagnostic Fault Information

Circuit/System Description

The lane departure warning is enabled and disabled through the lane departure warning switch located in the center console. When enabled, the frontview camera module will illuminate the indicator located in the switch.

The BCM supplies voltage to the indicator from the lighting dimming circuit. The frontview camera module turns on the indicator by proving the ground.

Conditions for Running the DTC

Ignition ON.

Conditions for Setting the DTC

B0987 01

The frontview camera module detects a short to voltage in the control circuit.

B0987 06

The frontview camera module detects a short to ground or an open/high resistance in the control circuit.

B0987 0B

The active safety control module detects high current in the control circuit.

Action Taken When the DTC Sets

• Lane departure warning is disabled
• The driver information center displays "Service Front Camera".

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

Object Detection Schematics (Encore), Object Detection Schematics (Trax)

Connector End View Reference

WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - INDEX - ENCORE WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - INDEX - TRAX

Description and Operation

Object Detection Description and Operation (Rearvision Camera, UVC), Object Detection Description and Operation (Rear Park Assist, UD7), Object Detection Description and Operation (Side Blind Zone Alert, UFT), Object Detection Description and Operation (Rear Cross Traffic Alert, UFG)

Electrical Information Reference

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

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.
2. Verify DTC B356A is not set.

• If the DTC is set

Refer to DTC B356A

• If the DTC is not set

3. Verify the lane departure warning indicator turns ON and OFF when pressing and releasing the lane departure warning switch.

• If the indicator does not turn ON and OFF

Refer to Circuit/System Testing.

• If the indictor turns ON and OFF

4. All OK.

Circuit/System Testing

1. Ignition OFF, and all vehicle systems OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console, ignition ON.
2. Test for 9.1 - 12.6 V between the dimming control circuit terminal 8 and ground.

NOTE: Verify interior lighting dimming is turned all the way up.

• If less than 9.1 V

1. Ignition OFF, disconnect the X1 harness connector at the K9 Body Control Module.
2. Test for infinite resistance between the control circuit and ground.

• If less than infinite resistance, repair the short to ground on 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, refer to Interior Backlighting Malfunction .
• If greater than 12.6 V

1. Ignition OFF, disconnect the X1 harness connector at the K9 Body 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, refer to Interior Backlighting Malfunction .
• If between 9.1- 12.6 V

3. Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module, ignition ON.
4. Test for less than 1 V between the control circuit terminal 6 and ground.

• If 1 V or greater

Repair the short to voltage on the circuit.

• If less than 1 V

5. Ignition OFF.
6. Test for infinite resistance between the control circuit terminal 6 and ground.

• If less than infinite resistance

Repair the short to ground on the circuit.

• If infinite resistance

7. Test for less than 5 ohms between the K109 Frontview Camera Module terminal 4 and S48E Multifunction Switch - Center Console circuit terminal 6.

• If greater than 5 ohms

Repair the open/high resistance in the circuit.

• If less than 5 ohms

8. Test or replace the S48E Multifunction Switch - Center Console.
9. Verify the lane departure switch Indicator turns ON and OFF when pressing and releasing the lane departure warning switch.

• If indicator does not turn on and off

Replace K109 Frontview Camera Module.

• If indicator turns on and off

10. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair

• Accessory Switch Replacement (Encore) , Accessory Switch Replacement (Trax)
• Control Module References for frontview camera module replacement, programming and setup.

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