B0987
DTC B0987
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 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. When enabled, the Frontview Camera Module will illuminate the indicator located in the switch. For the exact location of the lane departure warning switch, refer to the Owner's Manual.
For vehicles without UGN, the indicator and switch are connected to the Frontview Camera Module and the system operates as a stand-alone feature.
With UGN, the indicator and switch are connected to the Active Safety Control Module. The Active Safety Control Module receives input from several modules including the Frontview Camera Module to provide additional features. Refer to Object Detection Description and Operation (with Active Safety System - UGN) Object Detection Description and Operation (with Active Safety System - UGN)Object Detection Description and Operation (with rear vision camera - UVC) Object Detection Description and Operation (with rear vision camera - UVC)Object Detection Description and Operation (with front and rear park assist - UD5) Object Detection Description and Operation (With Front and Rear Park Assist - UD5)Object Detection Description and Operation (with rear park assist - UD7) Object Detection Description and Operation (With Rear Park Assist - UD7)Object Detection Description and Operation (with side blind zone alert - UFT) Object Detection Description and Operation (with side blind zone alert - UFT)Object Detection Description and Operation (with rear cross traffic alert - UFG) Object Detection Description and Operation (With Rear Cross Traffic Alert - UFG)Object Detection Description and Operation (with lane departure warning - UFL) Object Detection Description and Operation (With Lane Departure Warning - UFL)Object Detection Description and Operation (with forward collision alert - UEU) Object Detection Description and Operation (With Forward Collision Alert - UEU)Object Detection Description and Operation (with Haptic Signal Motor Seat) Object Detection Description and Operation (with Haptic Signal Motor Seat) for additional information on UGN. The lane departure alerts and DTCs are set by the Frontview Camera Module with the exception of the indicator DTCs, which are set by the Active Safety Control Module. There are no switch DTCs for vehicles with the Active Safety Control Module.
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
Without UGN
* Lane departure warning is disabled
* The driver information center displays "Service Front Camera".
With UGN
* The driver assist system is disabled.
* The driver information center displays "Service Driver 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 Fuel Pump and Level Sensor Assembly
Description and Operation
Object Detection Description and Operation (with Active Safety System - UGN) Object Detection Description and Operation (with Active Safety System - UGN)Object Detection Description and Operation (with rear vision camera - UVC) Object Detection Description and Operation (with rear vision camera - UVC)Object Detection Description and Operation (with front and rear park assist - UD5) Object Detection Description and Operation (With Front and Rear Park Assist - UD5)Object Detection Description and Operation (with rear park assist - UD7) Object Detection Description and Operation (With Rear Park Assist - UD7)Object Detection Description and Operation (with side blind zone alert - UFT) Object Detection Description and Operation (with side blind zone alert - UFT)Object Detection Description and Operation (with rear cross traffic alert - UFG) Object Detection Description and Operation (With Rear Cross Traffic Alert - UFG)Object Detection Description and Operation (with lane departure warning - UFL) Object Detection Description and Operation (With Lane Departure Warning - UFL)Object Detection Description and Operation (with forward collision alert - UEU) Object Detection Description and Operation (With Forward Collision Alert - UEU)Object Detection Description and Operation (with Haptic Signal Motor Seat) Object Detection Description and Operation (with Haptic Signal Motor Seat)
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 DTC B356A is not set.
• If the DTC is set
Refer to DTC B356A B356A
• If the DTC is not set
3. Verify the lane departure warning indicator turns ON and OFF while 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
Without UGN
1. Ignition OFF, and all vehicle systems OFF, disconnect the harness connector at the S48C Multifunction Switch 1 - Instrument Panel, ignition ON.
Note: Verify interior lighting dimming is turned all the way up.
2. Test for 6.2-10.9 V between the dimming control circuit terminal 3 and ground.
• If less than 6.2 V
1. Ignition OFF, disconnect the 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 Interior Backlighting Malfunction.
• If greater than 10.9 V
1. Ignition OFF, disconnect the 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 Interior Backlighting Malfunction.
• If between 6.2-10.9 V
3. Connect a test lamp between the control circuit terminal 2 and B+.
4. Verify the test lamp turns ON and OFF when commanding the Vehicle Direction Camera Indicator Status parameter On and Off with a scan tool.
• If the test lamp is always OFF
1. Ignition OFF, disconnect the harness connector at the K109 Frontview Camera 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
3. Ignition OFF.
4. 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 K109 Frontview Camera Module.
• If the test lamp is always ON
1. Ignition OFF, disconnect the harness connector at the K109 Frontview Camera 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, replace the K109 Frontview Camera Module.
• If the test lamp turns ON and OFF
5. Test or replace the S48C Multifunction Switch 1 - Instrument Panel.
With UGN
1. Ignition OFF, and all vehicle systems OFF, disconnect the harness connector at the S48C Multifunction Switch 1 - Instrument Panel, ignition ON.
Note: Verify interior lighting dimming is turned all the way up.
2. Test for 6.2-10.9 V between the dimming control circuit terminal 3 and ground.
• If less than 6.2 V
1. Ignition OFF, disconnect the 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 Interior Backlighting Malfunction.
• If greater than 10.9 V
1. Ignition OFF, disconnect the 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 Interior Backlighting Malfunction.
• If between 6.2-10.9 V
3. Connect a test lamp between the control circuit terminal 2 and B+.
4. Verify the test lamp turns ON and OFF when commanding the Vehicle Direction Camera Indicator Status parameter On and Off with a scan tool.
• If the test lamp is always OFF
1. Ignition OFF, disconnect the harness connector at the K124 Active Safety 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
3. Ignition OFF.
4. 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 K124 Active Safety Control Module.
• If the test lamp is always ON
1. Ignition OFF, disconnect the harness connector at the K124 Active Safety 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, replace the K124 Active Safety Control Module.
• If the test lamp turns ON and OFF
5. Test or replace the S48C Multifunction Switch 1 - Instrument Panel.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the repair
* Hazard Warning Switch Replacement Service and Repair - S48C Multifunction Switch 1 replacement.
* Control Module References Control Module References for Frontview Camera Module and Active Safety Control Module replacement, programming, and setup.