Hey guys,
Need your help! 2001 dodge ram 1500 5.9 4x4 sport package.
I had the trans rebuilt, now when ever I turn on the Ac/Heater mode switch the truck dies. not flashing any codes. I checked the ads and also the fuel system relays the pcm is turning off the grnd. I no that everything in this system is controleed by either a grd signal or grnd pulse.
If you have any suggestions please help.


Thanks

 

Moved this to the correct section.

Grab the factory service manual for your truck from here. Has wiring diagrams in it. Look for commonalities in the circuits giving you trouble.