Checking the control area network (CAN) and central electronic module (CEM)

The engine control module (ECM) has registered a fault in the communication with the central electronic module (CEM). The fault is caused either by a problem with controller area network (CAN) communication or an internal fault in the central electronic module (CEM).

For further fault-tracing, check if there are diagnostic trouble codes (DTCs) stored in the central electronic module (CEM).

Remedy as necessary.

Other information: 

• To access or replace the central electronic module (CEM), see Central electronic module (CEM), replacing .

• Continue 

  Refer to Information