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.
2006 Ford Expedition RWDFACTORY OEM SERVICE PROCEDURE
Climate Control System DTCS
DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | EATC/EATC DTC displayed | Notes | Description | Perform Test |
|---|---|---|---|---|
| B2266 | 2266 | N/A | (LH) lower blend door failure or short | GO to PINPOINT TEST A . |
| B2267 | 2267 | N/A | (RH) upper blend door failure or short | GO to PINPOINT TEST A . |
| B1251 | 1251 | N/A | A/C in-vehicle temperature sensor open circuit | GO to PINPOINT TEST B . |
| B1253 | 1253 | N/A | A/C in-vehicle temperature sensor circuit short to ground | GO to PINPOINT TEST B . |
| B1255 | 1255 | N/A | A/C ambient temperature sensor open circuit | GO to PINPOINT TEST C . |
| B1257 | 1257 | N/A | A/C ambient temperature sensor circuit short to ground | GO to PINPOINT TEST C . |
| B1259 | 1259 | N/A | A/C solar radiation sensor open circuit | GO to PINPOINT TEST D . |
| B1261 | 1261 | N/A | A/C solar radiation sensor circuit short to ground | GO to PINPOINT TEST D . |
| B2268 | 2268 | N/A | Steering wheel control switch open circuit | GO to PINPOINT TEST E . |
| B2269 | 2269 | N/A | Steering wheel control switch circuit short to ground | GO to PINPOINT TEST E . |
| B2411 | 2411 | Navigator Only | A/C humidity sensor open circuit | GO to PINPOINT TEST F . |
| B2412 | 2412 | Navigator Only | A/C humidity sensor circuit short to ground | GO to PINPOINT TEST F . |
| B2413 | 2413 | Navigator Only | A/C humidity sensor failure | GO to PINPOINT TEST F . |
| B2477 | N/A | N/A | Module not configured | Configure EATC module. |
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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