HVAC Module DTC Chart

2010 Ford Taurus SEL, FWDSECTION HVAC Module DTC Chart
HVAC MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Action
B1C83:12 Rear Defog Relay: Circuit Short to Battery Go To PINPOINT TEST J .
B1C83:14 Rear Defog Relay: Circuit Short to Ground or Open If the rear window does not defrost, Go To PINPOINT TEST J .
If the rear window defrost does not turn off, Go To PINPOINT TEST K .
All other DTCs - REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES .
RENDER: 1.0x

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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.