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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Security Indicator Lamp Output

The "SECURITY" lamp circuit is an indicator lamp output. The lamp output will be grounded during a 5 second "bulb test" at key on, at any time that the BCM is preventing the engine from starting, during an open or short to ground, or if the BCM is not properly programmed.