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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Shift Interlock: Testing and Inspection

If the interlock system operates in any way other than as described below, repair of the system is required.
1. Place shifter in gated PARK and place ignition key in the LOCK or ACCESSORY position. The shifter SHOULD NOT be able to move out of gated park.
2. Rotate the ignition key to OFF or RUN/ON. The shifter SHOULD BE able to move into ANY gear position.
3. Place shifter in the DRIVE position. The ignition key SHOULD NOT be able to rotate into the LOCK or ACCESSORY position.