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)

Or, hide this message: temporarily or permanently

Shift Interlock: Testing and Inspection

1. Turn ignition switch to RUN.
2. Verify that the transmission range selector lever is in PARK.
3. Without the brake pedal applied, verify that the transmission range selector lever cannot be shifted from PARK.
4. Apply the brake pedal. Verify that the transmission range selector lever can be shifted from PARK.
5. Shift to REVERSE.
6. Verify that the ignition switch cannot be turned to the LOCK position.
7. Shift to PARK.
8. Verify that the ignition switch can be turned to the LOCK position.