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

Engine Control Module: Tools and Equipment





The special service tools, Engine Signal Monitor (49 9200 162) and Adapter (49 G018 903) were developed to check terminal voltages on the powertrain control module engine.