Faulty Signal

ECM-A03B COMMUNICATION, CENTRAL ELECTRONIC MODULE
FAULTY SIGNAL

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), Central Electronic Module (CEM), Replacing


Fault-tracing information
Fault-tracing is not followed by verification for this fault.