P1285 - Cylinder Head Over Temperature
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P1285 - CYLINDER HEAD OVER TEMPERATURE
| Description: | Indicates an engine overheat condition was sensed by the Cylinder Head Temperature (CHT) sensor. | ||
| Possible Causes: |
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| Diagnostic Aids: | On some applications when this fault occurs the Engine Temperature warning indicator will illuminate and/or force the temperature gauge to the full H (hot) zone. The warning indicator can be triggered by either grounding the engine temperature warning circuit when wired to the PCM, or by sending a PCM network message to the instrument cluster. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to DL: Cylinder Head Temperature (CHT) Sensor STEP 18 | ||