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 logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Breakout Box



Breakout Box:





The Breakout Box is used to take measurements of individual circuits, while the vehicle is being driven or is stationary. The Breakout Box is connected in line with the EEC-IV Processor Unit. Test leads allow the technician to pinpoint a particular circuit that is being tested. Refer to equipment instructions for further available options and usage.