Guage cluster prob on 2004

[K.Frog]

What would cause my tranny display to not read (PRND21) All the guages work speedo, mileage, and even the light under the trans display (cruise) works. It was working fine and then I changed some setting on my smarty and now the display isnt there. Truck runs, shifts, goes into all forward and reverse and nuteral gears fine. No codes.

 

[OT-OF-Here]

Gauge cluster not showing

What would cause my tranny display to not read (PRND21) All the guages work speedo, mileage, and even the light under the trans display (cruise) works. It was working fine and then I changed some setting on my smarty and now the display isnt there. Truck runs, shifts, goes into all forward and reverse and nuteral gears fine. No codes.

It's the torq mgt selection you used on your Smarty. When you select NO torq mgt you get a blacked out gauge cluster.

 

[Bob Wagner]

PAT is correct. That is part of the tranny triggers