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 MANUALSFORD2018TRANSIT-350 BASE, VAN CARGO EXTENDED, 3.2L ENG VIN VREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXINTERIOR LIGHTING SYSTEM DTCS
2018 Ford Transit-350 Base, Van Cargo Extended, 3.2L Eng VIN V
Interior Lighting System DTCS
2018 Ford Transit-350 Base, Van Cargo Extended, 3.2L Eng VIN VSECTION Interior Lighting System DTCS
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
DTC INDEX
| DTC | Description | Action |
|---|---|---|
| B1187:92 | Trunk Motor: Performance or Incorrect Operation | If the courtesy lamps are inoperative from the rear door, GO to Pinpoint Test A If the courtesy lamps are always on, GO to Pinpoint Test C |
| B11EA:92 | Right Rear Door Ajar Switch: Performance or Incorrect Operation |
NOTE:
This DTC only sets when running a self-test on the BCM with the right rear door open. If the DTC is received with the right rear door closed, GO to Pinpoint Test C |
| B1D13:12 | Interior Lights Circuit "A": Circuit Short To Battery | GO to Pinpoint Test E |
| B1D14:12 | Interior Lights Circuit "B": Circuit Short To Battery | GO to Pinpoint Test E |
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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.