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: Service and Repair

1. Disconnect the negative battery cable.
2. Disconnect the key interlock resistor connector.





3. Remove the key interlock resistor.
4. Install the key interlock resistor.
5. Connect the key interlock resistor connector.
6. Connect the negative battery cable.