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

Circuit Tester

Circuit Tester:

Used for checking all relays and solenoids before connecting them to a new ECM. Measures the circuit resistance and indicates pass or fail through a GREEN or RED Light Emitting Diode (LED). Amber LED indicates current polarity. The circuit tester can also be used as a non-powered continuity checker. Use tool part number J 34636 or equivalent.