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)

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Circuit Overloading

The IPC is designed to withstand normal current drains associated with vehicle operations, however, care must be used to avoid overloading any of these circuits. In testing for opens or shorts, do NOT ground or apply voltage to any of the IPC circuits unless instructed to do so by the diagnostic procedures. These circuits should only be tested using the DMM (J 39200) while they remain connected to the IPC.