Disconnecting P2 Brake Controller - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 12-08-2014, 08:36 AM   #1
Senior Member
 
Name: Huck
Trailer: ParkLiner
Virginia
Posts: 573
Disconnecting P2 Brake Controller

I want to remove the brake controller Tekonsha P2 (90885) when not in use. The problem I am having is the wire (wiring harness) is so tight, I can't pull the brake controller out the front of the holder to get at the connector.

I've tried to disconnect from the rear of the brake controller, but I can't see it or feel it good enough to figure out what to push or pull.

I also can't get at the screws that hold the bracket in place because they are blocked by the controller.

Can anyone give me an idea on how I can disconnect the connector? (I didn't install it)

Thanks

1st picture is controller pulled forward as far as it will go.



2nd picture is from the rear and shows the connector.



The best example I can find is in the video for the 2001 Chevy Silverado video on etrailer.com. The part that is relevant is from 12:30 - 13.20.
__________________

__________________
Huck is offline   Reply With Quote
Old 12-08-2014, 10:37 AM   #2
Senior Member
 
Paul O.'s Avatar
 
Name: Paul
Trailer: '04 Scamp 19D, Tacoma 4.0L 4door, SB
ex VT, now CO
Posts: 1,269
I just walked out to take a look at mine, which I installed with slack in the wires so it comes out easily. You also see from the videos that you referenced, that the connector latch is such that it is not accessible while in the pocket mount. It looks to me that you need to find out how to pull the wires out enough. There should be some slack in the "rats nest" behind the dash board. Hopefully whoever installed it thought of how to remove it it needed. You could make yourself a flat, hook like tool to reach the latch from the space where the camera was in the second picture. Good luck.
__________________

__________________
Paul O. is offline   Reply With Quote
Old 12-08-2014, 10:40 AM   #3
Senior Member
 
Name: Darwin
Trailer: 2002 19 ft Scamp 19 ft 5th Wheel
Posts: 3,030
Send a message via Yahoo to Darwin Maring
We just leave ours connected. It doesnt seam to hurt it.
__________________
Darwin Maring is offline   Reply With Quote
Old 12-08-2014, 10:48 AM   #4
Senior Member
 
Paul O.'s Avatar
 
Name: Paul
Trailer: '04 Scamp 19D, Tacoma 4.0L 4door, SB
ex VT, now CO
Posts: 1,269
I leave mine in place as well. It draws four milliamps when sleeping, according Teconsha. That's got to less than the truck/car draws when it is parked. And if Huck cannot pull it out, a thief can't do it either! But maybe it is not good to leave such stuff in as temptation.
__________________
Paul O. is offline   Reply With Quote
Old 12-08-2014, 11:08 AM   #5
Senior Member
 
floyd's Avatar
 
Name: Floyd
Trailer: 2004 13 ft Scamp Custom Deluxe
IllAnnoy
Posts: 6,049
Registry
I have two, One has been hooked up for ten years, the other for seven years. The first one was installed with a switch at the power supply.
Since I never shut it off, I took the switch out last year.
A modern Tow vehicle uses a LOT more "keep alive" power than what is used by the controller, making the controller loss insignificant.
A slightly dirty battery top will waste more power than the controller in sleep mode.
__________________
floyd is online now   Reply With Quote
Old 12-08-2014, 11:19 AM   #6
Senior Member
 
Carol H's Avatar
 
Name: Carol
Trailer: 22' Airstream Formerly 16' Scamp
British Columbia
Posts: 11,731
Registry
There is a clip on the wiring harness at the controller that needs to be lifted to remove. If you follow the wiring harness off the back of the controller to under the dash you probable have a bunch of extra cable tied up and out of the way. If not under the dash it could be coiled up on the other side of where the wiring goes through the tugs fire wall.


EDIT: Here is a link from Etrailer that clearly shows how to disconnect the wiring clip
Carol H is offline   Reply With Quote
Old 12-08-2014, 11:24 AM   #7
Senior Member
 
David Tilston's Avatar
 
Name: Dave W
Trailer: Trillium 4500 - 1977, 1978 (2), 1300 - 1977, 1973, and a 1972
Alberta
Posts: 5,317
Registry
Since we don't use our tow vehicle, unless we are going camping, then our P3 drains the battery over the winter. I pull it off and put it in the glove box.
__________________
David Tilston is offline   Reply With Quote
Old 12-08-2014, 12:35 PM   #8
Senior Member
 
floyd's Avatar
 
Name: Floyd
Trailer: 2004 13 ft Scamp Custom Deluxe
IllAnnoy
Posts: 6,049
Registry
Quote:
Originally Posted by David Tilston View Post
Since we don't use our tow vehicle, unless we are going camping, then our P3 drains the battery over the winter. I pull it off and put it in the glove box.
Unless your tow vehicle is precomputer, then the keep alive power on each computer, sound system, built-in GPS, phone , etc. is going to dwarf that of the P3.
A battery disconnect would save the battery but it would affect the function efficiency of the vehicle through several ignition cycles. In some cases could require anti-theft codes to be entered before full use is restored.
When we leave a late model vehicle in storage for more than 3 weeks , we use a charger to supplement the battery.
Our 1966 Falcon, on the other hand, sits for 6 months with no significant power loss and no charger even though I did add a modern radio. The keep alive power for the radio is not enough to matter.
__________________
floyd is online now   Reply With Quote
Old 12-08-2014, 01:23 PM   #9
Senior Member
 
Byron Kinnaman's Avatar
 
Name: Byron
Trailer: 2006 Scamp 13' towed with a 2005 Dodge Dakota 4.7l Magnum W/full tow package (over kill)
Oregon
Posts: 6,309
Registry
Quote:
Originally Posted by floyd View Post
Unless your tow vehicle is precomputer, then the keep alive power on each computer, sound system, built-in GPS, phone , etc. is going to dwarf that of the P3.
A battery disconnect would save the battery but it would affect the function efficiency of the vehicle through several ignition cycles. In some cases could require anti-theft codes to be entered before full use is restored.
When we leave a late model vehicle in storage for more than 3 weeks , we use a charger to supplement the battery.
Our 1966 Falcon, on the other hand, sits for 6 months with no significant power loss and no charger even though I did add a modern radio. The keep alive power for the radio is not enough to matter.

I totally agree with Floyd. It always amazes me that people buy some pretty crazy notions.
__________________
Byron & Anne enjoying the everyday Saturday thing.
Byron Kinnaman is online now   Reply With Quote
Old 12-08-2014, 01:39 PM   #10
Senior Member
 
Carol H's Avatar
 
Name: Carol
Trailer: 22' Airstream Formerly 16' Scamp
British Columbia
Posts: 11,731
Registry
Quote:
Originally Posted by David Tilston View Post
Since we don't use our tow vehicle, unless we are going camping, then our P3 drains the battery over the winter. I pull it off and put it in the glove box.
I leave mine in all year long and have never had a problem with tug battery draining and not starting it even at -40.

Mine doesnt actually totally power up until the trailer is connected. If the tug is running and no trailer connected it stays in what I would call a sleep mode. It also goes totally off a short time after the car has been turned off if no trailer is connected, so if it is pulling power I can't imagine that it could be much (if any) if it remains connected in the tug.
Carol H is offline   Reply With Quote
Old 12-08-2014, 01:42 PM   #11
Senior Member
 
Name: Huck
Trailer: ParkLiner
Virginia
Posts: 573
My tow vehicle is not pre-computer, but it is a 1996. Something is draining the battery and it seems logical to me to disconnect the brake controller and see if it makes any difference. I had my mechanic's shop install the controller when they installed the 7-way trailer connector.

I know they screwed up the 7-way because I had to pay someone else to fix it. Removing the brake controller should be simple, but they also seemed to have screwed that up.

The brake controller is made to be removable, so it is not like I am trying to do something strange or complicated. I just want to unplug it when it's not in use and stick it in the glove box.
__________________
Huck is offline   Reply With Quote
Old 12-08-2014, 02:01 PM   #12
Senior Member
 
Byron Kinnaman's Avatar
 
Name: Byron
Trailer: 2006 Scamp 13' towed with a 2005 Dodge Dakota 4.7l Magnum W/full tow package (over kill)
Oregon
Posts: 6,309
Registry
Quote:
Originally Posted by Huck View Post
My tow vehicle is not pre-computer, but it is a 1996. Something is draining the battery and it seems logical to me to disconnect the brake controller and see if it makes any difference. I had my mechanic's shop install the controller when they installed the 7-way trailer connector.

I know they screwed up the 7-way because I had to pay someone else to fix it. Removing the brake controller should be simple, but they also seemed to have screwed that up.

The brake controller is made to be removable, so it is not like I am trying to do something strange or complicated. I just want to unplug it when it's not in use and stick it in the glove box.
OK if you insist. Get your head under the dash so you can see the connector and the latch. Release the latch and remove the connector with the wires. Now it's disconnected. You can then either remove it from the bracket or leave it alone.

FYI, My old 1993 Ford Tempo as well as my 1998 Blazer both had computers.

I recently had a problem like you're talking about, battery seeming to run down after a few days. I had a bad battery, replaced one years later same thing, replaced it again with another brand, no problems over a year later.
__________________
Byron & Anne enjoying the everyday Saturday thing.
Byron Kinnaman is online now   Reply With Quote
Old 12-08-2014, 02:49 PM   #13
Senior Member
 
OneOleMan's Avatar
 
Name: Pat
Trailer: Escape 17B Sold 5/2016
Washington
Posts: 112
Quote:
Originally Posted by Huck View Post
My tow vehicle is not pre-computer, but it is a 1996. Something is draining the battery and it seems logical to me to disconnect the brake controller and see if it makes any difference. I had my mechanic's shop install the controller when they installed the 7-way trailer connector.

I know they screwed up the 7-way because I had to pay someone else to fix it. Removing the brake controller should be simple, but they also seemed to have screwed that up.

The brake controller is made to be removable, so it is not like I am trying to do something strange or complicated. I just want to unplug it when it's not in use and stick it in the glove box.
If the discharge problem started after the mechanic did the wiring, which you said he “screwed up” he’s the one who should “diagnose” the problem and fix it so you can easily disconnect the controller.
__________________
Pat
Life is Good
When "Escaping Reality" Sold 5/2016
2012 4Runner Ltd
OneOleMan is offline   Reply With Quote
Old 12-08-2014, 03:10 PM   #14
Senior Member
 
Borrego Dave's Avatar
 
Name: Dave
Trailer: Casita SD17 2006
California
Posts: 2,924
Hi Huck, I have the P2 also and had to do all the wiring from the tugs battery back. As you can't seem to get the slack you need to remove the controller to disconnect it, here's a simple way. Pop the hood and disconnect the power wire for it from at the battery.....two minute job. I leave mine in all the time and have had no problems.
__________________

__________________
Borrego Dave is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Disconnecting propane fridge; plug size? Barrie Bochoff Problem Solving | Owners Helping Owners 11 03-19-2011 05:33 PM
Does tug need brake controller Thelma & John Towing, Hitching, Axles and Running Gear 6 06-17-2009 12:54 AM
Installing a brake controller in 97 Plymouth G. Voyager kevin61 Towing, Hitching, Axles and Running Gear 6 04-28-2009 07:59 AM
Tacoma brake controller mounting Harvey J Towing, Hitching, Axles and Running Gear 6 01-03-2009 11:51 AM
Brake Controller Leveling Eric G. Problem Solving | Owners Helping Owners 6 08-09-2008 11:37 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:31 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.