DeVille DTS V8-4.6L VIN 9 (2002)
Temperature Gauge: Description and Operation
ENGINE COOLANT TEMPERATURE GAGE
The IPC displays the engine coolant temperature as determined by the PCM. The IPC receives a class 2 message from the PCM indicating the engine
coolant temperature. The engine coolant temperature gage defaults to C if:
^
The PCM detects a malfunction in the engine coolant temperature sensor circuit.
^
The IPC detects a loss of class 2 communications with the PCM.
