DESCRIPTION When the CAN bus main lines are normal (no open, short to ground, short to +B or short between lines) and there is an ECU or sensor on the "Communication Bus Check" screen that is indicated as not communicating or whose connection status on the "Communication Bus Check" screen changes in
DESCRIPTION The theft warning siren has an internal battery. If the vehicle auxiliary battery cable is disconnected or any of the communication lines are open, the theft warning siren detects this and sounds its siren. Although the theft warning siren usually sounds by receiving a signal from the ma