P1290 - Cylinder Head Temperature (CHT) Sensor Circuit Low
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P1290 - CYLINDER HEAD TEMPERATURE (CHT) SENSOR CIRCUIT LOW
| Description: | Indicates a CHT sensor circuit short to ground. | |||
| Possible Causes: |
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| Diagnostic Aids: | A CHT V PID value reading of less than 0.2 volt with key ON engine OFF, or during any engine operating mode, indicates a concern is present. DTC P0117 may also be reported when this DTC is set. Either of these DTCs activates the malfunction indicator lamp (MIL). | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | refer to PINPOINT TEST DL . | |||