Jake Brake Problem

[Gregory OConnor]

My prints say the two to the right go to a "Power Harness Connector" one other wire to that same P H connector isfrom the coolant level sensor somy thinking is it was the power to the DDec???

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greg
--- In WanderlodgeForum@yahoogroups.com, Leroy Eckert wrote:
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> Don't know Greg. I know they are in the engine compartment but have never tracked them down..I have several auto reset breakers back there. I also know my Royale is different than others. Maybe those Prevost converters knew something.?????
> Leroy Eckert
> 1990 WB-40 Smoke N Mirrors
> Royale Conversion
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> --- On Thu, 9/18/08, Gregory OConnor Gregoryoc@... wrote:
> From: Gregory OConnor Gregoryoc@...
> Subject: [WanderlodgeForum] Re: Jake Brake Problem
> To: WanderlodgeForum@yahoogroups.com
> Date: Thursday, September 18, 2008, 12:55 AM
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> If its a prob with the computer this guy has the answer. he lists a
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> land line. lot of good info on his site. I sent him several
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> computers to reprogram
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> http://www.heavydut ypowertrain. com/detroitecms. htm
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> I wonder if the two power sources for the ddec are the right two
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> fuse/breakers behind the rear bumper?? the left is the ign switch
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> and bulk oil switch
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> greg
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> --- In WanderlodgeForum@ yahoogroups. com, Leroy Eckert
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> wrote:
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> > One other thing I forgot. It has been a year since I studied my
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> set up so I am going from memory. I specifically remember that my
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> coach has two main DDEC power sources spliced somewhere near the
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> DDEC control unit and two separate grounds. This set up presumably
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> as a fail safe in case one of two fuses or relays on the power side
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> malfunctions, and/or a bad ground in one location either of which
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> prevents an engine shut down because the DDEC cannot think.(no
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> power, no ground) I do not know if BB did this or Royale when they
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> converted my coach. Hope this helps.
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> > Leroy Eckert
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> > 1990 WB-40 Smoke N Mirrors
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> > Dahlonega, GA
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> > Royale Conversion
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> > --- On Wed, 9/17/08, Johnny M Slone wrote:
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> > From: Johnny M Slone
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> > Subject: [WanderlodgeForum] Re: Jake Brake Problem
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> > To: WanderlodgeForum@ yahoogroups. com
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> > Date: Wednesday, September 17, 2008, 10:07 PM
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> > Thanks for the replies. I have been searching for a
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> schematic that
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> > shows how the Allison WTEC and DDEC III are wired and what should
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> be
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> > on each lead. I have a BB drawing that shows the control switches
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> and
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> > relays. I have tested as best I could these circuits and I'm
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> > satisfied that this part is doig what it should. There appears to
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> be
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> > a lead
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> > (engine brake enable) from the WTEC to a VIM. I suspect this is a
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> > relay. This enable lead opens when all conditions are satisfied
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> for
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> > the jake to work. This circuit contols the engine brake disable
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> lead
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> > to the DDEC III. Is anyone familiar with this circuit and know
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> where
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> > to look for it. I may be on a wild goose chase.
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> > When the jake brake is working its not real loud inside the coach.
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> > Here in the mountians you definately know when it isn't. Going
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> down a
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> > 6% grade for about a mile without a jake or a retarder will get
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> your
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> > attention.
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> > Thanks again.
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> > Johnny M Slone
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> > Pikeville, Ky
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> > 98 LXI
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