Low or dirty motor oil condition
Faulty Oil Pressure Switch
Faulty Engine Oil Temperature (EOT) sensor
Engine overheating condition
Very high engine RPM for an extended period of time
Engine Light ON (or Service Engine Soon Warning Light)
Indicates the Engine Oil Temperature Protection (EOT) strategy in the Engine Control Module (ECM) has been activated. This temporarily prohibits high engine speed operation by disabling injectors, reducing the risk of engine damage from high engine oil temperature.