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.
Vehicle Security Module Diagnostic Trouble Code (DTC) Index
2010 Ford Focus S, StandardSECTION Vehicle Security Module Diagnostic Trouble Code (DTC) Index
WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
VEHICLE SECURITY MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | Description | Source | Action |
|---|---|---|---|
| B1217 | Horn Relay Coil Circuit Failure | Vehicle Security Module | GO to PINPOINT TEST A . |
| U1950 | UBP Communication Bus Fault | Vehicle Security Module | REFER to MODULE COMMUNICATIONS NETWORK . |
For a complete list of multifunction module DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES .
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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.