Engine Coolant Temperature Gauge

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 215°C (260°F) or below if:
^ The PCM detects a malfunction in the engine coolant temperature sensor circuit.
^ The IPC will display the engine coolant temperature message on the DIC.
^ The check gages indicator turns on.