Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2013SILVERADO 2500 HD LT, 2D CAB CHASSIS, 6.6L ENG VIN 8, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2552 (OBJECT DETECTION AND PEDESTRIAN PROTECTION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B0987: VEHICLE DIRECTION CAMERA INDICATORCIRCUIT/SYSTEM TESTING
2013 Chevrolet Silverado 2500 HD LT, 2D Cab Chassis, 6.6L Eng VIN 8, RWD
Circuit/System Testing
2013 Chevrolet Silverado 2500 HD LT, 2D Cab Chassis, 6.6L Eng VIN 8, RWDSECTION Circuit/System Testing
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 GMC Sierra 3500 HD, 2015 GMC Sierra 2500 HD, 2015 GMC Sierra 1500, 2015 Chevrolet Silverado 3500 HD, and 2015 Chevrolet Silverado 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the S48A Multifunction Switch - Instrument Panel, ignition ON.
- Verify a test lamp illuminates between the control circuit terminal 2 and ground.
- If the test lamp does not illuminate
- Ignition OFF, disconnect the harness connector at the K9 Body Control Module.
- Test for less than 2 Ω in the control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, refer to Interior Backlighting Malfunction .
- If the test lamp illuminates
- Ignition OFF, connect the harness connector at the S48A Multifunction Switch - Instrument Panel. Disconnect the harness connector at the K109 Frontview Camera Module, ignition ON.
- Verify the lane departure warning switch indicator is not illuminated.
- If the lane departure warning switch indicator is illuminated
- Ignition OFF, disconnect the harness connector at the S48A Multifunction Switch - Instrument Panel.
- Test for infinite resistance between the S48A Multifunction Switch - Instrument Panel control circuit terminal 5 and ground.
- If less than infinite resistance, repair the short to ground in the circuit.
- If infinite resistance, replace the S48A Multifunction Switch - Instrument Panel.
- If the lane departure warning switch indicator is not illuminated
- Connect a 3 A fused jumper wire between the control circuit terminal 4 and ground.
- Verify the lane departure warning switch indicator is illuminated.
- If the lane departure warning switch indicator is not illuminated
- Ignition OFF, disconnect the harness connector at the S48A Multifunction Switch - Instrument Panel.
- 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
- Ignition OFF.
- Test for less than 2 Ω in the control circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S48A Multifunction Switch - Instrument Panel.
- If the lane departure warning switch indicator is illuminated
- Replace the K109 Frontview Camera Module.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.