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

F5 - Actuator Test (Engine Not Running)






CAUTION: Always put the parking brake on and block the wheels when using this test mode.

The operation of individual components can be observed by using Mode F5. Tech-1 commands the operation of the actuators, providing valuable troubleshooting information. After a mechanical or hydraulic repair, the electrical function of those components can be quickly checked.

NOTE: When the Tech-1 display has a question mark (?) you must respond by pressing yes or no. When it displays an exclamation point (!) it is telling the result of its test.

F5 - ACTUATOR TEST QUICK CHECK