CAN-timeout on message Retarder Configuration
â–¶ How to fix
Check the wiring and connectors on TMS (E5) and EMS (E44). Check if EMS (E44) has any DTCs and troubleshoot those. If any software upgrade is available for the EMS (E44) or the TMS (E5), proceed with the upgrade. If none of the above helps replace EMS (E44) and ultimately replace TMS (E5).
What you'll see
No driver-visible symptom recorded.
System reaction
No system reaction.
Diagnostic depth
Detection
The CAN-message has not been received for a specified amount of time.
Possible cause
The harness or connectors have an open circuit or the message has not been transmitted by the engine.