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.
2016 Ford Focus STFACTORY OEM SERVICE PROCEDURE
Body Control Module (BCM) DTC Table
DTC INDEX
| DTC | Description | Action |
|---|---|---|
| B1088:86 | LIN Bus "B": Signal Invalid | GO to Pinpoint Test H |
| B1088:88 | LIN Bus "B": Bus Off | GO to Pinpoint Test H |
| B1175:64 | Drivers Door Ajar Switch: Signal Plausibility Failure | If the courtesy lamps are inoperative from the driver door, GO to Pinpoint Test A If the courtesy lamps are always on, GO to Pinpoint Test C |
| B11E9:13 | Left Rear Door Ajar Switch: Circuit Open | GO to Pinpoint Test C |
| B11EA:13 | Right Rear Door Ajar Switch: Circuit Open | GO to Pinpoint Test C |
| B1306:13 | Liftgate Ajar Switch: Circuit Open | GO to Pinpoint Test E |
| B1318:13 | Right Front Door Ajar Switch: Circuit Open | GO to Pinpoint Test C |
| B131B:13 | Left Front Door Ajar Switch: Circuit Open | GO to Pinpoint Test C |
| B1390:83 | Ambient Light Control Module: Value of Signal Protection Calculation Incorrect | GO to Pinpoint Test H |
| B1390:87 | Ambient Light Control Module: Missing Message | GO to Pinpoint Test H |
| B1D13:11 | Interior Lights Circuit "A": Circuit Short to Ground | If the interior courtesy lamps are always on, GO to Pinpoint Test D If the interior courtesy lamps are inoperative, GO to Pinpoint Test B |
| B1D13:12 | Interior Lights Circuit "A": Circuit Short To Battery | GO to Pinpoint Test B |
| U1000:00 | Solid State Driver Protection Active -Driver Disabled: No Sub Type Information | The module has temporarily disabled an output because an excessive current draw exists (such as a short to ground). The BCM cannot enable the output until the cause of the short is corrected. ADDRESS all other Diagnostic Trouble Codes (DTCs) first. After the cause of the concern is corrected, CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test. For additional information on BCM Field Effect Transistor (FET) protection, REFER to: Module Controlled Functions - System Operation and Component Description |
| U3000:49 | Control Module: Internal Electronic Failure | The module has permanently disabled an output because an excessive current draw fault (such as a short to ground) has exceeded the limits that the BCM can withstand. The cause of the excessive current draw MUST be corrected before a new BCM is installed. ADDRESS all other Diagnostic Trouble Codes (DTCs) first. After the cause of the concern is corrected, INSTALL a new BCM. REFER to: Body Control Module (BCM) For additional information on BCM Field Effect Transistor (FET) protection, REFER to: Module Controlled Functions - System Operation and Component Description |
| For other BCM Diagnostic Trouble Codes (DTCs) | - | REFER to: Body Control Module (BCM) |
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.