Electronic Automatic Temperature Control (EATC) Module Diagnostic Trouble Code (DTC) Index
ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | EATC (Hard) Self-Test Faults | EATC (Intermittent) Run-Time Faults | Description | Action to Take |
|---|---|---|---|---|
| B1249 | 24 | 22 25 |
Blend door short Blend door failure |
Go To PINPOINT TEST A . |
| B1251 | 31 | N/A | In-car temperature sensor open circuit | Go To PINPOINT TEST B . |
| B1253 | 30 | N/A | In-car temperature sensor short to ground | Go To PINPOINT TEST B . |
| B1255 | 41 | 43 | Ambient temperature sensor open circuit | Go To PINPOINT TEST C . |
| B1257 | 40 | 42 | Ambient temperature sensor short to ground | Go To PINPOINT TEST C . |
| B1261 | 50 | 52 | Solar radiation sensor circuit short to ground | Go To PINPOINT TEST D . |
| U1041 | N/A | N/A | SCP invalid or missing data for function read vehicle speed | REFER to SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV . |
| U1073 | N/A | N/A | SCP invalid or missing data for engine coolant | REFER to SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV . |
| U1222 | N/A | N/A | SCP invalid or missing data for interior lamps | REFER to INTERIOR LIGHTING , Inspection and Verification to continue diagnosis. |