High Oil Temperature, Reduce Engine Rpm
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
The IPC illuminates the HIGH OIL TEMPERATURE message and then the REDUCE ENGINE RPM messages in the driver information center (DIC) in 3 second intervals if the IPC detects that the engine oil temperature exceeds 160°C (320°F). The IPC monitors the engine oil temperature signal circuit to determine the engine oil temperature. A low resistance indicates high engine oil temperature.