1992 F150 Alarm Removal

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Jan 6, 2007 | 04:33 PM

rivirobo

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Joined: Jan 2007

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1992 F150 Alarm Removal

Got a question: After I replaced my tranny in the F150 I still had a shift tube to replace. It broke a couple months ago and I would put it in gear reaching under the dash and pulling the cable it was connected to. So the other day I got a new tube and rod and lowered the steering column to replace. There was a box tied up under there that was in my way. I thought it was a trailer brake thing. I removed the harnesses and went on to replace the shift tube. After I put everything back together it wouldn’t start. It turned over but no dash activation other than the odometer and a flicker of the speed and alt meters. So I took the box to the dealer and they said it was an old ford alarm control box and that I should just disconnect the batt and it will reset an the truck will function. NOT!!! No bypass button but a thing in the glove box that you remove the cap. So I said to hell with the alarm and followed the wiring it that that harness was connected to. A couple wires went to the selinoid, a couple went to the coil, a couple went to the brakes and one to the speed control and one to the fuse box. I removed it all and set the wires back to their original color code with no alarm hooked. Still same thing, although I do get fire now, as I sprayed some starting fluid and it kicked. But no instrument activation other than described above and no fuel pump activation. I did pull the relays and main-wired them and the pump does work.. but no dash activation. Is there a way to activate this **** or am I ****ed? I should have not unplugged that **** in the first place. Tell me what you might do…….

Jan 6, 2007 | 04:56 PM

Steve83

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Joined: Nov 2006

Posts: 5,495

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From: Memphis, TN 38135, USA, Earth

Buy a Haynes manual (PN 36058 w/light blue cover ~$15) & a cheap digital multimeter ($8-40), and trace each circuit that's not working until you find the other spot that's cut. I suspect there's another module somewhere that's looking for the one you pulled.