I just bought a '99 Dually 4x4 and it has the standard (3 lights and single toggle) Powermax TST. I don't have any info on it, their website doesn't list that specific one any longer. Questions for you guys: (1) None of the lights light up at any time and (2) What does the toggle do? I don't notice any change in either position. I thought it wasn't working, so I un-plugged it...GEEZ!...when I pulled out on the road, I had NO POWER at all, and the Check Engine light came on. The thing would hardly accelerate. I pulled over and plugged it back in and the it was back to normal, and after a few miles the check eng went off. Any idea why the lights don't work, and should I notice a difference with the toggle...which position should I keep it in, L or R, in case it's doing something I can't detect. Any help greatly appreciated.

--David Innis

 

Installation Instructions
Here are the standard tst and remote instructions

 

Thanks, Tyler. I really REALLY appreciate that. I tried to DL the max2 and it just froze for some reason...twice. You're the man!

Regards,

David Innis