Communication with the gearbox control unit
â–¶ How to fix
Check for other fault codes which indicate that there is a problem with the Red or Yellow CAN cables.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
Communication between the bodywork control unit and the transmission control unit has been interrupted.
Possible cause
Short circuit or open circuit in the red or yellow CAN bus.