DTC P1289: Cylinder Head Temperature (CHT) Sensor Circuit High Input
WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
P1289 - CYLINDER HEAD TEMPERATURE (CHT) SENSOR CIRCUIT HIGH INPUT
| Description: | Indicates a CHT sensor circuit malfunction (open). | ||
| Possible Causes: |
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| Diagnostic Aids: | A CHT V PID reading greater than 4.6 volts with KOEO or during any engine operating mode indicates a hard fault. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test DL . | ||