Battery Current Sensor

If the vehicle has Smart Regenerative Function / Load shed strategy it will have a battery current sensor, which is installed over the battery ground cable. It is supplied a 5-volt Reference voltage and a ground from the BCM. The battery current sensor is a Hall-effect sensor that supplies a PWM feedback signal to the BCM. These sensors serve as input to the Electrical Energy Management software. If the sensors malfunction due to wiring issues or failure a DTC will be set. In most cases the Electrical Energy Management functions are turned off until the sensor operation is restored.