P1285 JEEP Cylinder head over temp sensed
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.
– Engine Light ON (or Service Engine Soon Warning Light)
P1285 JEEP Description
Indicates an engine overheat condition was sensed by the Cylinder Head Temperature (CHT) sensor.
JEEP Vehicle:JEEP Commander,JEEP Compass,JEEP Grand Cherokee,JEEP Liberty,JEEP Patriot,JEEP Wrangler,JEEP Wrangler Unlimited,