M/T Reverse Lockout System Description

At a vehicle speed of 20 km/h (12 mph) or more, a signal from the ECM activates the reverse lockout solenoid, which pushes the select lock cam and select lock pin into the locked position. As a result, the interlock cannot rotate to the reverse select position, making it impossible to engage reverse gear. At a vehicle speed of 15 km/h (9 mph) or less, the signal from the ECM is interrupted which turns off the reverse lockout solenoid. The return spring pulls back the select lock pin enabling the interlock to move freely so reverse gear can be selected.

Vehicle speed Inhibitor Reverse selection 
Above 20 km/h (12 mph) ON Not allowed 
Below 15 km/h (9 mph) OFF OK 
IG-S/W OFF OFF OK