Operation CHARM: Car repair manuals for everyone.

Engine Overheated

The coolant temperature is sent to the cluster as a class 2 serial data value from the PCM/VCM. The cluster turns on the ENGINE OVER-HEATED message based on the coolant temperature. If the coolant temperature is greater than 128°C (262°F) it will be added to the message center and removed when the coolant temperature drops below 125°C (257°F).