Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Display Groups 50-69 (Speed Control)




Measured value blocks, display groups 50...69 - Speed control, Evaluating







Display group 54 - Speed control







Display group 55 - Speed control - Idling stabilization







Significance of figures in 5 digit number block, display zone 4 - Operating conditions







Display group 56 - Speed control - Idling stabilization







Display group 57 - Speed control - Idling stabilization







Display group 57 - Speed control - Electronic power control (EPC) system adaption 1)







Display group 61 - Speed control - Electronic power control system







Display group 62 - Speed control - Electronic power control system







Display group 66 - Speed control - Additional signals







Significance of figures in 8 digit number block, display zone 2 - Switch positions







Significance of figures in 8 digit number block, display zone 4 - CCS controls switch