Jump to content

help 2500hd trailer brakes

raidernut5

Recommended Posts

raidernut5 Enthusiast

raidernut5

Posted
Posted

installed my trailer brake controller today escort sensor dp. does not work when you apply the brakes, but if you manually move the knob on the controller the trailer brakes come on, but not with pedal. please help me out i am lost 05 2500hd gmc 6.0 dual battery option.

daytona Enthusiast

daytona

Posted
Posted

Is the trailer electrically hooked up while you are testing?

 

that series of brake controller is 'proportional' based on a pendulum. All electric brake controllers (except for Jordan) tap off the brake lite line as their signal that the brakes need application.

 

I actually like and have used the REESE BRAKEMAN DIGITAL REMOTE TRAILER BRAKE CONTROL for many years. I like the remote unit best of all, it laies right next to me on the seat for quick action

raidernut5 Enthusiast

raidernut5

Posted
  • Author
Posted

yes the trailer is hooked up when testing. i took my complete brake controller and wire harness from my 99 silverado and plugged it into my new 05 hd could the wire harness jumper be different from my 99 and that is why it wont work. it sure looks like the jumper supplied with the new hds

oldredhat6 Enthusiast

oldredhat6

Posted
Posted
yes the trailer is hooked up when testing. i took my complete brake controller and wire harness from my 99 silverado and plugged it into my new 05 hd could the wire harness jumper be different from my 99 and that is why it wont work. it sure looks like the jumper supplied with the new hds

 

 

 

YOu say you took the connector out of your 99. Did you put the fuse in as well. I know when I had mine done they had to put the fuse in the electronic panel under the hood. Mine is a 2001, so I do not know if it applies to yours.

raidernut5 Enthusiast

raidernut5

Posted
  • Author
Posted

accoring to the instructions with the gm harness it says if you have the tps auxilliary battery option then do not install the fuse? i dont understand why

blue2kzr2 Enthusiast

blue2kzr2

Posted
Posted

The '05 harness pin-out is different from the 99, this is likely why the controller isn't working properly. Someone else here will have to chime in with the correct pin-outs, I don't have them...

willieboy Enthusiast

willieboy

Posted
Posted

The 99 harness is different, that is why it is not working. Again, I don't remember the pinouts, but you could figure it out by applying the brake and figuring out which pin becomes hot in the box under the dash.

RICH256 Enthusiast

RICH256

Posted
Posted

You can get the change at the Tekonsha site.

 

http://www.tekonsha.com/files/Product%20Bu...%2020020013.pdf

 

They moved the red wire (the one that goes to the stop light switch). That explains why the lever works but not the pedal.

 

 

OLD NEW

 

White Red White Blank

Blank Black Blank Black

Blank Blue Red Blue

 

In the '04 manual they tell you not to install a fuse in Post 1 if you have the dual battery option (That is not the same as Diesel Dual Battery). Post #2 is for the brakes.

  • 2 weeks later...
gmspoi New Member

gmspoi

Posted
Posted

Had the same problem with my 2005, but by using the harness that came with my 2005 fixed the problem. My 02 harness would not work on the 05.

  • 9 months later...

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined

  • Who's Online   2 Members, 0 Anonymous, 328 Guests (See full list)

  • Latest Articles

  • Posts

    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Coastie05
      give me some tips to make my truck look better

      By Coastie05 · Posted

      Go back to OEM wheels. 
    • newdude
      2020 Trailboss 6.2 replacement

      By newdude · Posted

      Probably not their first rodeo, so it should go as planned most likely.  Typically the service manager or tech doing the swap will put some seat time to shake it down after they get it all put back together.  We usually put 50-100mi before we hand them back so if something happens, its not after you get it.  A coolant leaks, oil leaks, a ground left off or loose, vibration, etc.     The new engines so far have been good?  There's been a couple that have popped out there again (the replacement engine) but most have been okay.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...