HVAC Module

2009 Ford Pickup F350 Super Duty, 2D Pickup, 6.8 Y, 4WD, StandardSECTION HVAC Module
HVAC MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Perform Test
B1003 Mode Door Circuit Failure Go to Pinpoint Test F .
B1251 Air Temperature Internal Sensor Circuit Open Go to Pinpoint Test A .
B1253 Air Temperature Internal Sensor Circuit Short To Ground Go to Pinpoint Test A .
B1255 Air Temperature External Sensor Circuit Open Go to Pinpoint Test B .
B1257 Air Temperature External Sensor Circuit Short To Ground Go to Pinpoint Test B .
B1676 Battery Pack Voltage Out Of Range Go to Pinpoint Test Q .
B2266 Left Side Blend Door Circuit Failure For vehicles not equipped with electric heater, go to Pinpoint Test K .
For vehicles equipped with electric heater, go to Pinpoint Test L .
B2267 Right Side Blend Door Circuit Failure For vehicles not equipped with electric heater, go to Pinpoint Test K .
For vehicles equipped with electric heater, go to Pinpoint Test L .
B2268 Steering Wheel Climate Control Circuit Open Go to Pinpoint Test D .
B2269 Steering Wheel Climate Control Circuit Short to Ground Go to Pinpoint Test D .
B2426 Passenger Solar Radiation Sensor Circuit Open Go to Pinpoint Test C .
B2427 Passenger Solar Radiation Sensor Circuit Short to Ground Go to Pinpoint Test C .
B2795 Driver Solar Radiation Sensor Circuit Short to Ground Go to Pinpoint Test C .
B2796 Driver Solar Radiation Sensor Circuit Open Go to Pinpoint Test C .
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.