CAN signal TCO1 TachoOutputShaftSpeed received as Error.
â–¶ How to fix
Check DTCs in tachograph.
What you'll see
Decreased gear selection performance.
System reaction
ECU uses calculated replacement value for output shaft speed which decreases the performance of the gear selection strategy,
Diagnostic depth
Detection
ECU indicating error in signal "tacho output shaft speed".
Possible cause
Tachograph is stating that the output shaft speed has an error.