Challenger SRT-8 V8-6.1L (2009)
Shift Solenoid: Description and Operation
Transmission Reverse Lockout Solenoid - Operation
OPERATION
If vehicle speed is less than 3 mph, the PCM sends a ground to energized the solenoid which allows shifting into reverse. If vehicle speed is greater than
3 mph, the solenoid is deactivated, preventing the transmission from being shifted into reverse.