Dual/Electronic Automatic Temperature Control (DATC/EATC) Module Diagnostic Trouble Code (DTC) Index
WARNING: This page is about a different car, the 2005 Lincoln Navigator and 2005 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Some PCM DTCs may inhibit air conditioning (A/C) operation. If any PCM DTCs are retrieved, diagnose those first. See INTRODUCTION - GASOLINE
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DIAGNOSTIC TROUBLE CODE
| DTC | DATC/EATC DTC displayed | Notes | Description | Action to Take |
|---|---|---|---|---|
| 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 DATC module. |