Diagnostic Trouble Code (DTC) Chart
WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. 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. Refer to the Introduction - Gasoline Engines
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ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE DTC CHART
| DTC | Description | Action to Take |
|---|---|---|
| B1251 | A/C In-Vehicle Temperature Sensor Open Circuit | Go to Pinpoint Test A . |
| B1253 | A/C In-Vehicle Temperature Sensor Circuit Short to Ground | Go to Pinpoint Test A . |
| B1255 | A/C Ambient Temperature Sensor Open Circuit | Go to Pinpoint Test B . |
| B1257 | A/C Ambient Temperature Sensor Circuit Short to Ground | Go to Pinpoint Test B . |
| B2427 | RH A/C Solar Radiation Sensor Circuit Short to Ground | Go to Pinpoint Test C . |
| B2426 | RH A/C Solar Radiation Sensor Open Circuit | Go to Pinpoint Test C . |
| 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 . |
| B2014 | Evaporator Temperature Sensor Circuit Open | Go to Pinpoint Test D . |
| B1947 | Evaporator Temperature Sensor Circuit Short to Ground | Go to Pinpoint Test D . |
| B295A | LH Blend Door Potentiometer Feedback Circuit Open | Go to Pinpoint Test F . |
| B295B | LH Blend Door Potentiometer Feedback Short to Ground | Go to Pinpoint Test F . |
| B226C | LH Blend Door Motor Stalled | Go to Pinpoint Test F . |
| B295C | RH Blend Door Potentiometer Feedback Circuit Open | Go to Pinpoint Test F . |
| B295D | RH Blend Door Potentiometer Feedback Short to Ground | Go to Pinpoint Test F . |
| B226D | RH Blend Door Motor Stalled | Go to Pinpoint Test F . |
| B295E | Mode Door Potentiometer Feedback Circuit Open | Go to Pinpoint Test F . |
| B295F | Mode Door Potentiometer Feedback Short to Ground | Go to Pinpoint Test F . |
| B226E | Mode Door Motor Stalled | Go to Pinpoint Test F . |
| B1317 | Battery Voltage High | CLEAR the DTCs. REPEAT the self-test. If the DTC returns and the DTC is not present in other modules, MEASURE the voltage between ground and: EATC C228a-12, circuit CBP37 (WH) and EATC C228a-13, circuit SBP15 (WH/RD).
If the DTC returns and the DTC is present in other modules, REFER to CHARGING SYSTEM - GENERAL INFORMATION . |
| B1318 | Battery Voltage Low | Go to Pinpoint Test G . |
| B2268 | Steering Wheel Control Switch Open Circuit | Go to Pinpoint Test P . |
| B2269 | Steering Wheel Control Switch Circuit Short to Ground | Go to Pinpoint Test P . |
| B1342 | EATC Module Faulted | CLEAR the DTCs. REPEAT the self-test. If the DTC returns, INSTALL a new EATC module. REFER to CLIMATE CONTROL . |
| U0073 | Control Module Communication Buss Off | CLEAR the DTCs. REPEAT the self-test. If the DTC returns, REFER to MODULE COMMUNICATIONS NETWORK to diagnose the network concern. |
| U2050 | No Application Present | REFLASH the EATC module. REFER to MODULE CONFIGURATION . If the DTC returns, INSTALL a new EATC module. REFER to CLIMATE CONTROL . |
| U2051 | One or More Calibration Files Missing/Corrupt | REFLASH the EATC module. REFER to MODULE CONFIGURATION . If the DTC returns, INSTALL a new EATC module. REFER to CLIMATE CONTROL . |
| U0155 | Lost Communication with Instrument Panel Cluster (IPC) Control Module | CLEAR The DTCs. REPEAT the self-test. If the DTC returns, REFER to MODULE COMMUNICATIONS NETWORK to diagnose the lost communication with the IPC. |
| U0246 | Lost Communication with Heated Seat Module | CLEAR The DTCs. REPEAT the self-test. If the DTC returns, REFER to MODULE COMMUNICATIONS NETWORK to diagnose the lost communication with the heated seat module. |
| U0140 | Lost Communication with SPDJB | CLEAR The DTCs. REPEAT the self-test. If the DTC returns, REFER to MODULE COMMUNICATIONS NETWORK to diagnose the lost communication with the smart junction box (SJB). |