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.
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HOMESERVICE MANUALSFORD2003WINDSTAR BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1453 (HVAC CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS)DIAGNOSIS AND TESTINGCLIMATE CONTROL SYSTEMDIAGNOSTIC TROUBLE CODE INDEXELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX
2003 Ford Windstar Base
Electronic Automatic Temperature Control (EATC) Module Diagnostic Trouble Code (DTC) Index
2003 Ford Windstar BaseSECTION Electronic Automatic Temperature Control (EATC) Module Diagnostic Trouble Code (DTC) Index
WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
All DTCs can be retrieved as an on-demand (hard fault) or continuous (intermittent fault) fault. If a continuous (intermittent) fault, the degrees Celsius symbol (°C) will be displayed in addition to the DTCs.
DTC DESCRIPTION
| DTC | Description | Action to Take |
|---|---|---|
| B1200 | Stuck Button | Button held too long may set DTC. Attempt to clean buttons. If code returns, INSTALL a new EATC module. REFER to CLIMATE CONTROL . |
| B1251 | In-Vehicle Temperature Sensor Open Circuit | GO to PINPOINT TEST A . |
| B1253 | In-Vehicle Temperature Sensor Circuit Short to Ground | GO to PINPOINT TEST A . |
| B1255 | Ambient Temperature Sensor Open Circuit | GO to PINPOINT TEST B . |
| B1257 | Ambient Temperature Sensor Circuit Short to Ground | GO to PINPOINT TEST B . |
| B2795 | LH A/C Solar Radiation Sensor Circuit Short to Ground | GO to PINPOINT TEST C . |
| B2796 | LH A/C Solar Radiation Sensor Open Circuit | GO to PINPOINT TEST C . |
| B1242 | Air Inlet Door Short/Failure | GO to PINPOINT TEST D . |
| B2266 | LH Blend Door Failure or Short | GO to PINPOINT TEST K . |
| B2267 | RH Blend Door Failure or Short | GO to PINPOINT TEST K . |
| B1003 | Mode Door Short/Failure | GO to PINPOINT TEST E . |
| B2916 | Auxiliary Blend Door Failure | GO to PINPOINT TEST R . |
| B2917 | Auxiliary Mode Door Failure | GO to PINPOINT TEST S . |
| B2918 | Auxiliary Temperature Input Circuit Open/Short to Ground | GO to PINPOINT TEST R . |
| B2919 | Auxiliary Blower Motor Speed Input Circuit Open/Short to Ground | GO to PINPOINT TEST Q . |
| B1342 | EATC Module Faulted | INSTALL a new EATC module. REFER to CLIMATE CONTROL . |
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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.