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 battery control module will diagnose its own systems and determine when a fault condition is present. Diagnostics and system status is communicated from the drive motor generator battery control module to the drive motor generator control module through serial data. The drive motor generator control module is the host controller for diagnostic trouble code (DTC) information.

This diagnostic applies to internal microprocessor integrity conditions within the drive motor generator battery control module. This is an internal electronic fault detection diagnostic of the drive motor generator battery control module. This fault is internal to the drive motor generator battery control module and no external circuits are involved. Failure of these diagnostics can cause erratic hybrid drive motor battery and HV contactor operation.

The drive motor generator battery control module performs tests on its own internal memory to detect failures. No external circuits are involved. Failure of these diagnostics can cause erratic hybrid drive motor battery and HV contactor operation.