Wiring harness for 2003 Ram 2500

[Sean O'Harra]

I have heard that the 2003 Ram 2500 has issues with wires breaking in the wiring harness going from the body frame to the rear doors. I have issues with both my rear doors and need to replace both wiring harnesses. I have fixed one door once, but it is past the point of repair so they need to be replaced. I can't seem to find any that are reasonably priced through most of my normal equipment avenues. Any suggestions or ideas would be greatly appreciated.

Sean

 

[bcbender]

I see lots of "options" out there, some Dorman parts on ebay... , but looks like MOPAR discontinued that P/N... Search the forums as there are threads on this topic, but I know people have replaced that harness, I like you opted to solder in new wires and mine lasted until I sold it recently, I added high strand count wire so it was more flexible, kinda PITA, but most guys replaced the entire harness.

 

[Ozymandias]

If your harness is the same as in my 04.5 then Dorman has the replacement part for around 100$ each.

 

[bcbender]

Should be the same I would assume from 03-05 at least.. My buddie and I have been using my the 04 factory service manual for both our trucks (his is 05) and have not found any real significant differences electrically on the body. (he has the 325/600HO, I had the 305/555HO). I did not see specifically 03.. but many listed as 04,05,06,07,08... maybe just a typo. we both have had the wires broken issues in the rear doors