Circuit/System Description

The generator control module also called the starter generator control module is comprised of the following three control modules; the hybrid powertrain control module, 14 volt power module and the drive motor control module. These three control modules are non serviceable and are part of the generator control module.

The starter generator is also referred to as the drive motor. The drive motor temperature sensor is a variable resistor that measures the temperature of the drive motor stator windings. The hybrid powertrain control module supplies 5 V to the signal circuit and a ground for the low reference circuit. The drive motor temperature sensor resistance changes with drive motor coolant temperature. As the temperature decreases, the sensor resistance increases. As the temperature increases, the sensor resistance decreases. The hybrid powertrain control module monitors the drive motor temperature sensor to determine the temperature of the drive motor.