Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Cadillac >> 2009 >> STS V >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 4.4L - DTC P0153 To DTC P0651 >> DTC P0196 >> Circuit/System Description

Circuit/System Description

The engine oil temperature (EOT) sensor is a variable resistor that measures the temperature of the engine oil. The engine control module (ECM) supplies 5 volts on the EOT signal circuit, and a ground to the low reference circuit. Monitoring the engine oil temperature is necessary for optimal control of the cam phasers. The oil temperature is monitored from dual function oil level switch and temperature sensor located in the oil pan.

scientia non olet · About Mike's Workshop Manuals