Ok so my check engine light has been on for a while and the code read Rad fan relay open or short. So a friend and I played for a bit and even went as far as removing the fan. After applying direct pwr to the fan motor we came to the ultimate conclusion that it is the wiring harness for the fan from the pwr to the fuse box. Does anyone happent to have a schematic of the wiring harness for an 02 Ram 1500 4X4, manual transmission. Any help would be greatly appreciated.

 

Don't worry we figured it out after pulling out the fuse box and unhooking all the wiring and cleaning them.. Needless to say it wasn't the wiring. The books on my truck say the AC unit and fan run off of 2 fuses and 1 relay well we discovered it actually has 3 fuses that control it. So now I know...