Reverse Lockout Solenoid - Everything you need to know - T56 TR6060 LS

Do you find Reverse gear almost impossible to select in your manual LS Swapped Vehicle?
You’re not alone and you’re most likely fighting against a factory installed feature of the Tremec T56 and TR6060 manual transmissions known as the Reverse Lockout Solenoid.

What does a reverse lockout solenoid do? Well, the name says it all really. The reverse lockout solenoid is there to prevent accidental selection of reverse gear in the 6 speed transmissions whilst at speed.

This works through the PCM (Powertrain Control Module) or ECM (Engine Control Module) depending on what model and year you’re using. Generally, the standard settings will allow the selection of reverse under 12 km/h. The PCM/ECM receives the vehicle speed input and when the conditions to unlock reverse are met, will send an earth signal through the harness to a white connector located at the end of the transmission harness. When activated, the ball detent solenoid will open. The wiring will depend on if you have a Gen 3 (LS1/6) P01/P59 Computer or Gen 4 (LS3/L98/L77) E38 Computer.

For Gen 3, Pin A of the connector above must be connected to Pin 44 of the Red or Green X2 PCM Connector

For Gen 4 Vehicles, Pin A of the connector must be connected to Pin 11 of the X2 ECM Connector.

Pin B is connected to ignition voltage, this must be a fuse protected, switched ignition voltage.
PLEASE NOTE – The above image is looking to the connector from the mating face.

If you are missing the connector all together, we sell a replacement connector kit HERE.

This lockout is known as a “Crash Gate” meaning, with some force, reverse can be selected regardless of if the solenoid is activated.

We hope this information gives you some insight into this common issue.