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.
Interior Lighting: BCM
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for information about these practices.
| DTC | Description | Action |
|---|---|---|
| B1175:01 | Driver Door Ajar Switch: General Electrical Failure | GO to Pinpoint Test E . |
| B1176:01 | Passenger Door Ajar Switch: General Electrical Failure | GO to Pinpoint Test E . |
| B11C0:01 | Driver Side Rear Door Ajar Switch: General Electrical Failure | GO to Pinpoint Test E . |
| B11C1:01 | Passenger Side Rear Door Ajar Switch: General Electrical Failure | GO to Pinpoint Test E . |
| B12C2:11 | Puddle Lamp: Circuit Short To Ground | GO to Pinpoint Test D . |
| B12C2:15 | Puddle Lamp: Circuit Short To Battery or Open | GO to Pinpoint Test F . |
| B1313:11 | Interior Lighting Output: Circuit Short To Ground | GO to Pinpoint Test C . |
| B1313:15 | Interior Lighting Output: Circuit Short To Battery or Open | If the interior courtesy lamps are inoperative, GO to Pinpoint Test C . If the interior courtesy lamps are always on, GO to Pinpoint Test G . |
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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.
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