CAN-timeout on message Electronic Engine Controller 1.
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
Reduced gear shifting performance.
Diagnostic depth
Detection
ECU indicating timeout on message Electronic Engine Controller 1.
Possible cause
The harness or connectors has open circuit or the message has not been transmitted by engine.