Help guys, I started my truck this am and all my instruments ect were out. The check engine light, abs light were on and the odometer flashed and then said "no bus" What the hell??
any ideas? Randy

 

sounds like ECM or PCM issues. any programmers ?

 

No Bus means that the cluster is not communicating with the PCM. Could be a bad PCM, bad cluster or bad wiring.

 

yes I have a bully dog programmer

 

Bingo ! that's your problem. BD's are well known for causing that type of issue.

If it doesn't clear on it's own, you'll have to contact BD for a recalibration program. Hope you have patience cause
there's no fire under their a$$

 

If I understand you, I could unhook the BD and hook back stock and the problem may go away???

 

what you could do is " try " to take the truck back to stock. This means any parameter you changed with the BD has to be returned to stock... especially the tire size.

Once you think the truck is back to stock, go to the main screen on the BD. Push the right arrow twice which will take you to a screen with a bunch of numbers. It should say towards the bottom " no software present " if it doesn't, you're not back to stock.

If you can get it to stock and your xmas tree dash goes away, you may be ok. I think once the truck looses communication with the PCM though... you have to recalibrate it to communicate again. The only way to do that is to contact BD.

 

triton, I have a 2000 CTD, the only programmer BD had at the time was a plug and play with 3 levels on a 3 pos switch in the dash. Not fancy like a triple downloader ect. I went to my truck and just unplugged it and plugged back to stock-no difference, should i unhook the batteries as well and try to clear the PCM?

 

I can't post !!!! try the battery but, also contact BD

 

It seems that my PCM is bad, where can I get one? any ideas.....Randy