Circuit Description

In order to reduce engine temperature, PCM has ability to disable a number or fuel injectors during and engine overtemperature condition. Engine is considered overtemperature when Engine Coolant Temperature (ECT) sensor reaches a predetermined temperature. DTC sets when PCM senses ECT sensor is in overtemperature condition, and PCM enters protection mode.

DTC will set when following conditions are present: DTC P0117, P0118 or P0125 not set, engine is running, ECT greater than 270°F (132°C) and these conditions present for greater than 10 seconds.