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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Starting System Circuit Description

Moving the ignition switch to the CRANK position sends a 12 V signal to the PCM Ignition Crank (Sense) input. The PCM verifies that it has received a (valid theft password) from the vehicle's body control module. The PCM then grounds the control circuit of the Crank Relay which has power supplied to it through the PNP switch. When the Crank Relay is energized it completes the B+ voltage circuit to the starter solenoid S terminal.