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-   -   FSM Wiring Diagram Needed 1990 W250 (https://www.dieseltruckresource.com/forums/1st-gen-ram-all-topics-93/fsm-wiring-diagram-needed-1990-w250-317448/)

JimmyM 04-15-2014 07:54 PM

FSM Wiring Diagram Needed 1990 W250
 
I'm in need of a wiring diagram if all possible for my '90 W250 non-intercooled CTD with a 727/NP205. I bought this truck and the wiring harness that runs to the VSS and neutral safety switch on the trans is completely missing. There is a 10 pin weatherpack connector on the main wiring harness under the hood that harness that I'm missing should plug into. PO has jumped a couple wires to by pass the neutral switch and the speedo is in-op of course. I've searched all around but apparently this is a '90 ONLY wiring because 89 had the speedo CABLE and 91 has OD trans with the module.[dummy] I'm more than willing to just build my own harness to get all the stuff working but have no idea what each pin in the connector goes to or controls[yuk]

NJTman 04-15-2014 09:56 PM

$35 plus shipping

http://www.genosgarage.com/1990-DODG...nfo/DFSM90_CD/

or if you want the hard copy it will cost you $120

patdaly 04-16-2014 08:36 AM

3 Attachment(s)

Originally Posted by JimmyM (Post 3233334)
I'm in need of a wiring diagram if all possible for my '90 W250 non-intercooled CTD with a 727/NP205. I bought this truck and the wiring harness that runs to the VSS and neutral safety switch on the trans is completely missing. There is a 10 pin weatherpack connector on the main wiring harness under the hood that harness that I'm missing should plug into. PO has jumped a couple wires to by pass the neutral switch and the speedo is in-op of course. I've searched all around but apparently this is a '90 ONLY wiring because 89 had the speedo CABLE and 91 has OD trans with the module.[dummy] I'm more than willing to just build my own harness to get all the stuff working but have no idea what each pin in the connector goes to or controls[yuk]

It is difficult to find all the relevant pages, as has been said, the 35 bucks to get a FSM on CD is the best thing you will ever do.

That being said, here is some of the info I found for you.

Attachment 42874

Attachment 42875

Attachment 42876

NJTman 04-16-2014 10:05 AM

I just ordered the FSM from Genos for my 92. I've been using the 93 FSM for a while now, but I think there are some things different in the 92's that I may need sometime.

With shipping it cost me about $44, but well worth the money spent.


EBAY has used FSM in paperback form for under $30, but not sure what you would be getting in a used mechanics book without actually seeing prior to purchase.


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