DTC U0131: F-CAN Malfunction (Powertrain Control module (PCM)-EPS Control Unit): General Description

The controller area network (CAN) transmits/receives pulsing signals to/from the control modules simultaneously using two signal lines (CANH and CANL). When the powertrain control module (ECM) does not receive signals from the electrical power steering (EPS) control unit via the CAN lines for a set time or more, the PCM detects a malfunction and a DTC is stored.