Circuit/System Description
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The drive motor generator control module temperature sensor is a variable resistor that measures the temperature of the coolant entering the drive motor generator control module coolant radiator. The engine control module (ECM) supplies 5 volts to the drive motor generator control module temperature signal circuit, and a ground for the drive motor generator control module temperature low reference circuit.