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 Solenoid: Testing and Inspection









1. Remove the column covers.
2. Turn the ignition switch to ON.
3. Measure the voltage between terminal-wire and a ground.
4. If not as specified, check the transmission range switch. brake switch, and CPU.