EMS node: timeout in CAN communication
â–¶ How to fix
• Check the EMS for DTCs • If DTCs can not be read from the EMS: - check power supply and ignition signal to the EMS - check CAN connection to EMS unit • Check wiring and connectors for the red CAN-bus • Check wiring and connectors for the yellow CAN-bus
What you'll see
No driver-visible symptom recorded.
System reaction
• Functions dependent on information from EMS might be degraded. Examples listed below. - engine speed display in the instrument cluster. - cruise control • Amber warning lamp "EMS missing" is shown in ICL
Diagnostic depth
Detection
Communication error. Communication with the Engine Management System (EMS) interrupted.
Possible cause
• Power supply to EMS has failed • EMS unit disconnected from the red CAN bus • Faulty EMS unit