CEM-B102481: Start Control Unit. Bus Signal / Message Failures. Invalid Serial Data Received (2012): Fault-Tracing: Information

Central electronic module (CEM) checks communication with antenna unit ignition (IAU). The serial communication from antenna unit ignition (IAU) is incorrect. Antenna unit ignition (IAU) has been programmed for another vehicle.

Replace antenna unit ignition (IAU)

Other information 

• see IGNITION ANTENNA UNIT (IAU)

Fig 1: Identifying Central Electronic Module (CEM)

Courtesy of VOLVO CARS CORPORATION