DTC U0029 (107): F-CAN Malfunction (BUS-OFF (Motor Control Module (MCM))) (Motor) (IMA System); DTC U0029 (108): F-CAN Malfunction (BUS-OFF (Motor Control Module (MCM))) (Battery) (IMA System): General Description

The motor control processor and the battery control processor are in the motor control module (MCM). The controller area network (CAN) transmits/receives pulsing signals to/from the control modules simultaneously by using two signal lines (CANH and CANL). When each processor does not receive the signals via the F-CAN lines for a set time, a malfunction is detected and a DTC is stored.