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

Operation







OPERATION

The PTCM controls each set of hydraulic cylinders through the power top hydraulic assembly. The power top hydraulic assembly operates the hydraulic cylinders and is monitored by the PTCM to control each step of the raising and lowering of the convertible top. The PTCM also controls both power windows through the Controller Area Network (CAN) lines to lower and raise the power windows when the power top switch is depressed.