DTC P0127: Intake Air Temperature (IAT) Too High
WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2010 Mercury Mountaineer, 2010 Mercury Milan, 2010 Mercury Mariner, 2010 Mercury Grand Marquis, and 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0127: INTAKE AIR TEMPERATURE (IAT) TOO HIGH
| Description: | Indicates the IAT2 sensor has detected a concern in the charge air cooler (CAC) system. | ||
| Possible Causes: |
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| Diagnostic Aids: | Monitor the IAT2 PID. A typical IAT2 temperature should be greater than the IAT1 temperature. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST DU . | ||