DeVille V8-4.6L VIN Y (1998)
Driver/Vehicle Information Display: Description and Operation
ENGINE COOLANT HOT, IDLE ENGINE
The IPC monitors the coolant temperature as the PCM reports it over class 2 serial data. When the PCM reports that the coolant temperature is greater
than 126 °C (259 °F), the IPC displays the ENGINE COOLANT HOT, IDLE ENGINE message. The message continues to display until the coolant
temperature falls below 121 °C (250 °F).
