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

Brake Transmission/Transaxle Shift Interlock (BTSI) Check

BRAKE TRANSMISSION/TRANSAXLE SHIFT INTERLOCK (BTSI) CHECK

WARNING: When performing this check, the vehicle could move suddenly. Personal injury or property damage may result. Park the vehicle on a level surface and set the parking brake. Make sure there is enough room around the vehicle, in case the vehicle does move. Be ready to apply the regular brake immediately should the vehicle begin to move.

With the engine OFF, turn the ignition to RUN, but do not start the engine. Without applying the regular brakes, try to move the transmission/transaxle shift lever out of PARK with normal effort. If the shift lever moves out of PARK, repair the BTSI system.