Hey all. I've been chasing electrical demons, in my '91 Ram Van, and my Haynes manual is showing me some incorrect info. Specifically, the wiring diagram, for the '88-'91 vans. Several fuses shown are incorrect, compared to my '91 owners manual. Problem I'm having is, previous mechanic replaced a fusible link, in the pink/black, with a 30amp. fuse. This fuse blows when the starter engages. Although, if you change fuse with engine running, it won't blow. I lose my p.windows and blower motor. Anybody have a ignition harness schematic, other then Haynes?? Or does anybody have any thoughts on this problem?? Brad
Dodgevanman
06-01-2006, 07:11 AM
You should go on Ebay and get yourself a used factory service manual.
I'll try and scan some schematics for you tonight.
dodges 3
06-01-2006, 03:39 PM
Thanks Nate, I would greatly apprieciate that.
Dodgevanman
06-02-2006, 06:54 AM
My DSL was down last night...I'll scan tonight.
dodges 3
06-02-2006, 07:28 PM
Referring to post#1, the 30amp fuse is inline with the pink/black wire. Referring to the '92 wiring schematic (haynes), pink/black goes through a 50amp. maxi fuse. Might my problem be too low amperage fuse. I might try a thiker wire with a heavy duty fuse and holder, and see if this solves the problem. I'm just concerned about melting wires...Brad
Referring to post#1, the 30amp fuse is inline with the pink/black wire. Referring to the '92 wiring schematic (haynes), pink/black goes through a 50amp. maxi fuse. Might my problem be too low amperage fuse. I might try a thiker wire with a heavy duty fuse and holder, and see if this solves the problem. I'm just concerned about melting wires...Brad
I wouldn't do that. '92 is the first year for the Multi-Port fuel injected Magnum engines which required a totally different wiring harness that had different requirements.
dodges 3
06-02-2006, 08:14 PM
Thanks for the wiring diagrams. I'll have to thoroughly go over them, before I try anything drastic.....Brad
dodges 3
06-03-2006, 08:47 PM
After having gone over all wiring and diagrams, I believe all wiring under hood is correct. I removed the ignition switch, which I now believe is the problem. The 2 big contacts in the middle, shows signs of being burnt. These are the pink/black wire, and the black/red wire. The pink/black is the wire with the fuse under the hood, the back/red goes to the p.w.'s blower motor. I think the switch is crossed and throws a ground, when starter engaged, therefore, blowing fuse under hood.....
dodges 3
06-04-2006, 10:46 AM
I used an old test trick, for when I was installing remote starters, for a living. I basically hot-wired the van. Everything worked as it should, so I'm pretty sure it's the ignition switch. I'm going to replace it this week, so I can drive it...
Dodgevanman
06-05-2006, 06:53 AM
Badda boom badda bing!
dodges 3
06-05-2006, 06:10 PM
And yes I was 100% correct. I stopped at a local Dodge Dealer, today, and they actually had an ignition switch on hand. Put it in as soon as I got home. Everything works perfectly. Although, I haven't reinstalled the rear defroster switch yet, as it also shows signs of melting terminals. I might leave it out, as I don't plan on driving this in the winter...
