The battery sensor communicates with the scan tool via the CAN communication circuit.
The following conditions cause poor CAN communication.
- Open circuit in the CAN communication circuit
- Short together between the CAN Low circuit and the CAN High circuit
- Short to ground or short to the power supply circuit in the CAN communication circuit
- Failure inside the control unit, which causes a short to ground or a short to the power supply circuit in the CAN communication circuit