Circuit/System Description
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The battery energy control module (BECM) monitors for the following:
- Golden range check, ensures the zero point for both current sensors is set within a good range.
- Correlation check, ensures that the difference between the two sensors is not too large.
- Polarity check, ensures that the pack voltage and pack current are tracking each other.