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 power inverter module (PIM) temperature 1 sensor is used for overheat protection. The thermistor is located on the control board, near the phase W power MOSFET. The starter/generator control module (SGCM) monitors the inverter temperature sensor to detect the failure of the inverter temperature sensor using rationality of other temperature sensors to determine if it is out of range.