Dirtydieselhead

Thanks man good to know that. I got the PCM from the same year truck all of my issues and dash lights and no bus are solved. Haven't drove the truck yet to see if it shifts on its but the od button works now no more trans temp light or anything.

Have a PCM from the same year truck on its way off of eBay . I just need to buy a smarty now and put a auto file on my ecm then?

Thanks for the response. Do I need a new ecm what's the best way to do that. Trucks in my garage and dealer is 45 minutes away. i also might add I have a couple of codes 2 of the p1693/ p0230/p1492 every time I clear them they come back right away. Are the electronics inside trans and pcms different 98.5-99 verses 2000-02v?

Decided I got tired of shifting gears sold my manual setup and bought a auto setup. My truck is a 2000 bought everything from a late 99 truck. Got everything in and I am having issues. The truck will not shift on its own I have to do it manually, the OD off light stays on and won't let me change it along with the trans temp light goes off a couple of seconds after I start it and my trans temp shows 260 degrees on a cold start. I have a no bus communication about 20 seconds after start up. All of my gauges work fine without issues. I changed the PCM and wiring harness to trans with the 99 truck. Still have my manal ecm. I need all of the help I can get here anyone please chime in with what I need to do next! Thanks for everyone's time