Communication with the GMS control unit
â–¶ How to fix
Check the red CAN bus wiring and connectors. Check the circuit for the GMS control unit power supply (30) and the circuit for the GMS control unit's activation signal (15).
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
Communication between coordinator and GMS control unit has been interrupted.
Possible cause
The fault may be due to: Open circuit in the red CAN bus.Short circuit or open circuit in the GMS control unit power supply.Internal fault in the GMS control unit