Communication with GMS node is interrupted or missing.
â–¶ How to fix
• Check the GMS for related DTCs. • If SDP3 cannot connect to GMS, the fault is most likely in the GMS or the Red CAN-bus. - E.g. check the fuse, connectors, and cable harness.
What you'll see
Functions dependent on the GMS are degraded.
System reaction
Amber ACS warning lamp Speed & Torque Limitation
Diagnostic depth
Detection
Communication with the Gearbox Management System (GMS) has timed out (communication interrupted).
Possible cause
• Faulty GMS unit • GMS unit disconnected from the red CAN bus