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 MANUALSCADILLAC2013CTS V, 2D COUPE, AUTOMATIC TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCEOBJECT DETECTION SYSTEM - PARK ASSIST SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDTC B009CDIAGNOSTIC FAULT INFORMATION
2013 Cadillac CTS V, 2D Coupe, Automatic Trans
Diagnostic Fault Information
2013 Cadillac CTS V, 2D Coupe, Automatic TransSECTION Diagnostic Fault Information
| Circuit | Short to Ground | High Resistance | Open | Short to Voltage | Signal Performance |
|---|---|---|---|---|---|
| Front Upper Beam Sensor Supply Voltage Circuit | B009C 02 | B009C 08 | B009C 08 | - | B009C 39, B009C 3A |
| Front Upper Beam Sensor Ground Circuit | - | B009C 08 | B009C 08 | B009C 01 | B009C 39, B009C 3A |
| Front Upper Beam Sensor Low Reference Circuit | B009C 02 | B009C 08 | B009C 08 | B009C 01 | B009C 39, B009C 3A |
| Front Upper Beam Sensor Signal Circuit | B009C 02 | B009C 08 | B009C 08 | B009C 01 | B009C 39, B009C 3A |
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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.