DTC P1289: - Cylinder Head Temperature (CHT) Sensor Circuit High
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2009 Mercury Mountaineer, 2009 Mercury Milan, 2009 Mercury Mariner, 2009 Mercury Grand Marquis, and 2009 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
DTC P1289: - CYLINDER HEAD TEMPERATURE (CHT) SENSOR CIRCUIT HIGH
| Description: | Indicates a CHT sensor circuit open. | ||
| Possible Causes: |
|
||
| Diagnostic Aids: | A CHT V PID reading of greater than 4.6 volts with ignition ON engine OFF, or during any engine operating mode, indicates a concern is present. DTC P0118 may also be reported when this DTC is set. Either of these DTCs activate the MIL. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test DL . | ||