General Information
The controller area network (CAN) is monitored by the Central electronic module (CEM). When the Central electronic module (CEM) detects a fault in the controller area network (CAN) a diagnostic trouble code (DTC) is stored in the Central electronic module (CEM). There are different types of diagnostic trouble code (DTC) depending on the type of fault.
Fault types which are processed are:
- No communication from the control module
- Faulty communication.
NOTE:
To troubleshoot respective CAN-net, see troubleshooting for CAN-related diagnostic trouble codes for Central electronic module (CEM). For example, choose CEM-U000100/CEM-U000111/CEM-U000112/CEM-U000188 (HS CAN) or CEM-U001000/CEM-U001011/CEM-U001012/CEM-U001088 (MS/LS-CAN).