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

OPERATION CHECK
1. Place shifter in PARK, the ignition switch should rotate freely from OFF to LOCK position. When the shifter is moved to the DRIVE position, the ignition switch should not rotate from OFF to LOCK.
2. Moving shifter out of PARK should be possible only when ignition switch is in the OFF or the RUN position. Movement of the shifter from the PARK position should not be possible when the ignition switch is in the LOCK or the ACCESSORY position.
3. If the interlock system, operates in any way other than as described above, repair of the interlock system is required.