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.
2024 Ford Expedition TimberlineFACTORY OEM SERVICE PROCEDURE
Interior Lighting System DTCS
| DTC | Description | Action |
|---|---|---|
| B1175:01 | Drivers Door Ajar Switch: General Circuit/Electrical Failure | GO to Pinpoint Test A |
| B1175:01 | Drivers Door Ajar Switch: General Circuit/Electrical Failure | GO to Pinpoint Test D |
| B1176:01 | Passenger Door Ajar Switch: General Circuit/Electrical Failure | GO to Pinpoint Test A |
| B1176:01 | Passenger Door Ajar Switch: General Circuit/Electrical Failure | GO to Pinpoint Test D |
| B11C0:01 | Driver Side Rear Door Ajar Switch: General Circuit/Electrical Failure | GO to Pinpoint Test A |
| B11C0:01 | Driver Side Rear Door Ajar Switch: General Circuit/Electrical Failure | GO to Pinpoint Test D |
| B11C1:01 | Passenger Side Rear Door Ajar Switch: General Circuit/Electrical Failure | GO to Pinpoint Test A |
| B11C1:01 | Passenger Side Rear Door Ajar Switch: General Circuit/Electrical Failure | GO to Pinpoint Test D |
| 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 | GO to Pinpoint Test C |
| B1313:15 | Interior Lighting Output: Circuit Short To Battery Or Open | GO to Pinpoint Test E |
| B145C:11 | Ambient Lighting Power Supply Output: Circuit Short To Ground | GO to Pinpoint Test I |
| B145C:15 | Ambient Lighting Power Supply Output: Circuit Short To Battery Or Open | GO to Pinpoint Test I |
| B1465:00 | Ambient Lighting Bus 1: No Sub Type Information | GO to Pinpoint Test I |
| B1465:00 | Ambient Lighting Bus 1: No Sub Type Information | GO to Pinpoint Test J |
| B1467:00 | Ambient Lighting Bus 3: No Sub Type Information | GO to Pinpoint Test I |
| B1467:00 | Ambient Lighting Bus 3: No Sub Type Information | GO to Pinpoint Test J |
| B14AA:11 | Demand Lamp Output: Circuit Short To Ground | GO to Pinpoint Test F |
| B14AA:15 | Demand Lamp Output: Circuit Short To Battery Or Open | GO to Pinpoint Test F |
| B1165:11 | Left Front Puddle Lamp Output: Circuit Short To Ground | GO to Pinpoint Test H |
| B1165:15 | Left Front Puddle Lamp Output: Circuit Short To Battery Or Open | GO to Pinpoint Test H |
| B1166:11 | Right Front Puddle Lamp Output: Circuit Short To Ground | GO to Pinpoint Test H |
| B1166:15 | Right Front Puddle Lamp Output: Circuit Short To Battery Or Open | GO to Pinpoint Test H |
| B1306:11 | Liftgate Ajar Switch: Circuit Short To Ground | GO to Pinpoint Test B |
| B1306:11 | Liftgate Ajar Switch: Circuit Short To Ground | GO to Pinpoint Test D |
| B1306:12 | Liftgate Ajar Switch: Circuit Short To Battery | GO to Pinpoint Test B |
| B1306:12 | Liftgate Ajar Switch: Circuit Short To Battery | GO to Pinpoint Test D |
Factory Service Tools
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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.