GMS node: timeout in CAN communication
â–¶ How to fix
• Check the GMS for DTCs • If DTCs can not be read from the GMS: - check power supply and ignition signal to the GMS - check CAN connection to GMS 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 GMS might be degraded.
Diagnostic depth
Detection
Communication error. Communication with the Gearbox Management System (GMS) interrupted.
Possible cause
• Power supply to GMS has failed • GMS unit disconnected from the red CAN bus • Faulty GMS unit