Heavy Orange Wire in the trailer brake harness? - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 9 (permalink) Old 06-04-2009, 10:00 PM Thread Starter
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Heavy Orange Wire in the trailer brake harness?

The heavy Orange Wire in the trailer brake harness, where does it go? What was it for? There are three wires going to the plug near the drivers side rear. The heavy blue trailer brake wire is one, but I cannot figure out the function of the other two.



Thanks in Advance,



Aaron

97 PSD 4X4 250K, Ron Holland/Banks 1.00 A/R, EBPV Delete, 3" DP, Kitty Delete, PHP Phoenix 6 POS, 140V IDM, Autometers on the Pillar,4" Intake, 17 degree SD pump, 18-20 psi depending on setting...
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post #2 of 9 (permalink) Old 06-04-2009, 10:04 PM
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Re: Heavy Orange Wire in the trailer brake harness?

pretty sure the orange wire is constant 12v for charging batteries etc on trailer,? anyone else, and the other may be reverse lights?? anyone?

1997 f250 4x4 sclb, auto, 3.55's, 191k, diy intake w 6637, ccv mod, pyro, boost, trans gauges, 3" dp to 4" single exh. super chips for now. scangauge
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Besides there is absolutely no way to idiot proof something, since they are always coming out with better idiots by the day
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post #3 of 9 (permalink) Old 06-04-2009, 10:11 PM Thread Starter
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Re: Heavy Orange Wire in the trailer brake harness?

Ii did not find any power on the wire with a voltmeter. I am going out now to check fuses. Never thought of reverse...

Thanks Aaron

97 PSD 4X4 250K, Ron Holland/Banks 1.00 A/R, EBPV Delete, 3" DP, Kitty Delete, PHP Phoenix 6 POS, 140V IDM, Autometers on the Pillar,4" Intake, 17 degree SD pump, 18-20 psi depending on setting...
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post #4 of 9 (permalink) Old 06-05-2009, 02:59 AM
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Re: Heavy Orange Wire in the trailer brake harness?

on the towing forum someone said that it only has voltage when key is on.

1997 f250 4x4 sclb, auto, 3.55's, 191k, diy intake w 6637, ccv mod, pyro, boost, trans gauges, 3" dp to 4" single exh. super chips for now. scangauge
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Originally Posted by jdc753 View Post
Besides there is absolutely no way to idiot proof something, since they are always coming out with better idiots by the day
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post #5 of 9 (permalink) Old 06-05-2009, 09:54 PM
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Re: Heavy Orange Wire in the trailer brake harness?

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Originally Posted by bluedge8 View Post
on the towing forum someone said that it only has voltage when key is on.
Thats true, and in that way the trucks batteries doesnt empty when the trailer is there connected

F-250 PSD 1996 ext.cab 2WD, Short bed, E4OD.

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post #6 of 9 (permalink) Old 06-06-2009, 01:15 AM Thread Starter
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Re: Heavy Orange Wire in the trailer brake harness?

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Originally Posted by STROKER #1 View Post
Thats true, and in that way the trucks batteries doesnt empty when the trailer is there connected
I have a fuse under the dash that powers a trailer battery recharge relay and a maxi fuse under the hood that supplies line side voltage to this same relay. I cannot find the relay.

The black wire/green stripe in the same harness is supposed to be for the reverse lights oj the trailer, but it does not work either...

I have a manual for a 92 and it shows a relay, but does not mention where it might be...

Thanks,

Aaron

97 PSD 4X4 250K, Ron Holland/Banks 1.00 A/R, EBPV Delete, 3" DP, Kitty Delete, PHP Phoenix 6 POS, 140V IDM, Autometers on the Pillar,4" Intake, 17 degree SD pump, 18-20 psi depending on setting...
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post #7 of 9 (permalink) Old 06-07-2009, 02:27 AM Thread Starter
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Re: Heavy Orange Wire in the trailer brake harness?

My connections for the underhood relays for these circuits was deadheaded behind the engine compartment fuse box. Turns out that Ford spent the money to put in the wiring, connections, and fuses but never installed the relays. Gonna wire a relay in to the charge wire. The reverse wire isn't terribly important right now....

Aaron

97 PSD 4X4 250K, Ron Holland/Banks 1.00 A/R, EBPV Delete, 3" DP, Kitty Delete, PHP Phoenix 6 POS, 140V IDM, Autometers on the Pillar,4" Intake, 17 degree SD pump, 18-20 psi depending on setting...
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post #8 of 9 (permalink) Old 06-07-2009, 02:10 PM
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Re: Heavy Orange Wire in the trailer brake harness?

Mine had the factory "towing package" and the factory had installed two additional relays next to the underhood power box (if my lousy memory is correct).

'94 F250 supercab 4x4, original owner, 4.10LS, DIY elec fuel, Tymar air, Beans tunes on VA 4 position chip, Adrenaline HPOP, VDO boost/pyro/outside temp gauges, Ford digital AIC, DPPI downpipe, gutted EBPV, modded turbo ped, Con OFE, add-a-leafs front/rear, Monroe Reflex shocks, Milemarker 449SS hubs...coming soon: 6.0 IC...wish list: Stage 2's
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post #9 of 9 (permalink) Old 06-08-2009, 04:58 PM Thread Starter
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Re: Heavy Orange Wire in the trailer brake harness?

That's the devils that I was missing. I was confused as the line side fuse was in place, the relay coil fuse was in place. All the wiring was in place to the rear bumper. Everything but the relays. Oh well, I will solder and heatshrink in a nice 30 amp Bosch unit and be done with the mess. Might even put a 10 amp in for the reverse wire...

Aaron

97 PSD 4X4 250K, Ron Holland/Banks 1.00 A/R, EBPV Delete, 3" DP, Kitty Delete, PHP Phoenix 6 POS, 140V IDM, Autometers on the Pillar,4" Intake, 17 degree SD pump, 18-20 psi depending on setting...
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