DTC U0155 (106): F-CAN Malfunction (Gauge Control Module - Motor Control Module (MCM)): General Description

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