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.