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.
2005 Ford Freestar BaseFACTORY OEM SERVICE PROCEDURE
Electronic Automatic Temperature Control (EATC) Module
ELECTRONIC AUTOMATIC TEMPERATURE CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1200 | Stuck button | Button held too long may set DTC. Attempt to clean buttons. If code returns, INSTALL a new EATC module. REFER to CONTROL COMPONENTS . |
| 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 . |
| B2795 | LH A/C solar radiation sensor circuit short to ground | GO to PINPOINT TEST B . |
| B2796 | LH A/C solar radiation sensor open circuit | GO to PINPOINT TEST B . |
| B2427 | RH A/C solar radiation sensor circuit short to ground | GO to PINPOINT TEST B . |
| B2426 | RH A/C solar radiation sensor open circuit | GO to PINPOINT TEST B . |
| B1242 | Air inlet door short/failure | GO to PINPOINT TEST C . |
| B2266 | LH blend door failure or short | GO to PINPOINT TEST J . |
| B2267 | RH blend door failure or short | GO to PINPOINT TEST J . |
| B1263 | Floor/defrost/panel door short/failure | GO to PINPOINT TEST D . |
| B1342 | EATC module faulted | INSTALL a new EATC module. REFER to CONTROL COMPONENTS . |
| B2477 | EATC module configuration error | INSTALL a new EATC module. REFER to CONTROL COMPONENTS . |
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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