O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

Just a the pick up wired for 8 wire harness to tow the camping
trailer. About 15 mins from the house the brake warning light came
on. It stayed on for the rest of the trip home. After about 20 mins
I headed off to my parents place, at first the warning light was OFF,
after about 10 mins it came back on. <-- This all happened with the
trailer hitched to the truck.


I dropped the trailer off at my folks place and on the drive home the
warning light never came on once.

Any ideas?? wire from the brake controller? or else where?

Thanks
Snow....

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

They may have left a little air in the hydraulic controlled brake
control lever at your steering wheel, that's throwing your proportional
valve warning switch. It may have bleed it's self back into the reservoir.
Unless yours is just hooked to the brake light switch.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"Snow" <snowbal@sympatico.ca> wrote in message
news:1181343264.611898.319320@q75g2000hsh.googlegr oups.com...
> Just a the pick up wired for 8 wire harness to tow the camping
> trailer. About 15 mins from the house the brake warning light came
> on. It stayed on for the rest of the trip home. After about 20 mins
> I headed off to my parents place, at first the warning light was OFF,
> after about 10 mins it came back on. <-- This all happened with the
> trailer hitched to the truck.
>
>
> I dropped the trailer off at my folks place and on the drive home the
> warning light never came on once.
>
> Any ideas?? wire from the brake controller? or else where?
>
> Thanks
> Snow....
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

They may have left a little air in the hydraulic controlled brake
control lever at your steering wheel, that's throwing your proportional
valve warning switch. It may have bleed it's self back into the reservoir.
Unless yours is just hooked to the brake light switch.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"Snow" <snowbal@sympatico.ca> wrote in message
news:1181343264.611898.319320@q75g2000hsh.googlegr oups.com...
> Just a the pick up wired for 8 wire harness to tow the camping
> trailer. About 15 mins from the house the brake warning light came
> on. It stayed on for the rest of the trip home. After about 20 mins
> I headed off to my parents place, at first the warning light was OFF,
> after about 10 mins it came back on. <-- This all happened with the
> trailer hitched to the truck.
>
>
> I dropped the trailer off at my folks place and on the drive home the
> warning light never came on once.
>
> Any ideas?? wire from the brake controller? or else where?
>
> Thanks
> Snow....
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

They may have left a little air in the hydraulic controlled brake
control lever at your steering wheel, that's throwing your proportional
valve warning switch. It may have bleed it's self back into the reservoir.
Unless yours is just hooked to the brake light switch.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"Snow" <snowbal@sympatico.ca> wrote in message
news:1181343264.611898.319320@q75g2000hsh.googlegr oups.com...
> Just a the pick up wired for 8 wire harness to tow the camping
> trailer. About 15 mins from the house the brake warning light came
> on. It stayed on for the rest of the trip home. After about 20 mins
> I headed off to my parents place, at first the warning light was OFF,
> after about 10 mins it came back on. <-- This all happened with the
> trailer hitched to the truck.
>
>
> I dropped the trailer off at my folks place and on the drive home the
> warning light never came on once.
>
> Any ideas?? wire from the brake controller? or else where?
>
> Thanks
> Snow....
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

They may have left a little air in the hydraulic controlled brake
control lever at your steering wheel, that's throwing your proportional
valve warning switch. It may have bleed it's self back into the reservoir.
Unless yours is just hooked to the brake light switch.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"Snow" <snowbal@sympatico.ca> wrote in message
news:1181343264.611898.319320@q75g2000hsh.googlegr oups.com...
> Just a the pick up wired for 8 wire harness to tow the camping
> trailer. About 15 mins from the house the brake warning light came
> on. It stayed on for the rest of the trip home. After about 20 mins
> I headed off to my parents place, at first the warning light was OFF,
> after about 10 mins it came back on. <-- This all happened with the
> trailer hitched to the truck.
>
>
> I dropped the trailer off at my folks place and on the drive home the
> warning light never came on once.
>
> Any ideas?? wire from the brake controller? or else where?
>
> Thanks
> Snow....
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

Snow wrote:
> Just a the pick up wired for 8 wire harness to tow the camping
> trailer. About 15 mins from the house the brake warning light came
> on. It stayed on for the rest of the trip home. After about 20 mins
> I headed off to my parents place, at first the warning light was OFF,
> after about 10 mins it came back on. <-- This all happened with the
> trailer hitched to the truck.
>
>
> I dropped the trailer off at my folks place and on the drive home the
> warning light never came on once.
>
> Any ideas?? wire from the brake controller? or else where?

I wonder if the brake system is somehow sensing additional load
from the e-brake module. Not sure about the GMC trucks, but I
remember something about a diode being needed with some e-brake
units to prevent the warning light from coming on.

--
DougW

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

Snow wrote:
> Just a the pick up wired for 8 wire harness to tow the camping
> trailer. About 15 mins from the house the brake warning light came
> on. It stayed on for the rest of the trip home. After about 20 mins
> I headed off to my parents place, at first the warning light was OFF,
> after about 10 mins it came back on. <-- This all happened with the
> trailer hitched to the truck.
>
>
> I dropped the trailer off at my folks place and on the drive home the
> warning light never came on once.
>
> Any ideas?? wire from the brake controller? or else where?

I wonder if the brake system is somehow sensing additional load
from the e-brake module. Not sure about the GMC trucks, but I
remember something about a diode being needed with some e-brake
units to prevent the warning light from coming on.

--
DougW

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

Snow wrote:
> Just a the pick up wired for 8 wire harness to tow the camping
> trailer. About 15 mins from the house the brake warning light came
> on. It stayed on for the rest of the trip home. After about 20 mins
> I headed off to my parents place, at first the warning light was OFF,
> after about 10 mins it came back on. <-- This all happened with the
> trailer hitched to the truck.
>
>
> I dropped the trailer off at my folks place and on the drive home the
> warning light never came on once.
>
> Any ideas?? wire from the brake controller? or else where?

I wonder if the brake system is somehow sensing additional load
from the e-brake module. Not sure about the GMC trucks, but I
remember something about a diode being needed with some e-brake
units to prevent the warning light from coming on.

--
DougW

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

Snow wrote:
> Just a the pick up wired for 8 wire harness to tow the camping
> trailer. About 15 mins from the house the brake warning light came
> on. It stayed on for the rest of the trip home. After about 20 mins
> I headed off to my parents place, at first the warning light was OFF,
> after about 10 mins it came back on. <-- This all happened with the
> trailer hitched to the truck.
>
>
> I dropped the trailer off at my folks place and on the drive home the
> warning light never came on once.
>
> Any ideas?? wire from the brake controller? or else where?

I wonder if the brake system is somehow sensing additional load
from the e-brake module. Not sure about the GMC trucks, but I
remember something about a diode being needed with some e-brake
units to prevent the warning light from coming on.

--
DougW

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMCSerria
 

Snow wrote:
> Just a the pick up wired for 8 wire harness to tow the camping
> trailer. About 15 mins from the house the brake warning light came
> on. It stayed on for the rest of the trip home. After about 20 mins
> I headed off to my parents place, at first the warning light was OFF,
> after about 10 mins it came back on. <-- This all happened with the
> trailer hitched to the truck.
>
>
> I dropped the trailer off at my folks place and on the drive home the
> warning light never came on once.
>
> Any ideas?? wire from the brake controller? or else where?
>
> Thanks
> Snow....
>

I have seen strange things sometimes that require a trailer ground wire,
the ball is sometimes used.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMCSerria
 

Snow wrote:
> Just a the pick up wired for 8 wire harness to tow the camping
> trailer. About 15 mins from the house the brake warning light came
> on. It stayed on for the rest of the trip home. After about 20 mins
> I headed off to my parents place, at first the warning light was OFF,
> after about 10 mins it came back on. <-- This all happened with the
> trailer hitched to the truck.
>
>
> I dropped the trailer off at my folks place and on the drive home the
> warning light never came on once.
>
> Any ideas?? wire from the brake controller? or else where?
>
> Thanks
> Snow....
>

I have seen strange things sometimes that require a trailer ground wire,
the ball is sometimes used.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMCSerria
 

Snow wrote:
> Just a the pick up wired for 8 wire harness to tow the camping
> trailer. About 15 mins from the house the brake warning light came
> on. It stayed on for the rest of the trip home. After about 20 mins
> I headed off to my parents place, at first the warning light was OFF,
> after about 10 mins it came back on. <-- This all happened with the
> trailer hitched to the truck.
>
>
> I dropped the trailer off at my folks place and on the drive home the
> warning light never came on once.
>
> Any ideas?? wire from the brake controller? or else where?
>
> Thanks
> Snow....
>

I have seen strange things sometimes that require a trailer ground wire,
the ball is sometimes used.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMCSerria
 

Snow wrote:
> Just a the pick up wired for 8 wire harness to tow the camping
> trailer. About 15 mins from the house the brake warning light came
> on. It stayed on for the rest of the trip home. After about 20 mins
> I headed off to my parents place, at first the warning light was OFF,
> after about 10 mins it came back on. <-- This all happened with the
> trailer hitched to the truck.
>
>
> I dropped the trailer off at my folks place and on the drive home the
> warning light never came on once.
>
> Any ideas?? wire from the brake controller? or else where?
>
> Thanks
> Snow....
>

I have seen strange things sometimes that require a trailer ground wire,
the ball is sometimes used.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

Forgot to mention , the trailer has electric brakes.

Thanks for the ideas.... I'll see if I can find anything on the
control unit.

Snow..

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

Forgot to mention , the trailer has electric brakes.

Thanks for the ideas.... I'll see if I can find anything on the
control unit.

Snow..

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

Forgot to mention , the trailer has electric brakes.

Thanks for the ideas.... I'll see if I can find anything on the
control unit.

Snow..

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

Forgot to mention , the trailer has electric brakes.

Thanks for the ideas.... I'll see if I can find anything on the
control unit.

Snow..

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

But what operates the control level you should have within hands reach
for emergencies. Is that also electric or do you see an extra "T" coming off
your master cylinder?
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"Snow" <snowbal@sympatico.ca> wrote in message
news:1181353394.075241.286840@g4g2000hsf.googlegro ups.com...
> Forgot to mention , the trailer has electric brakes.
>
> Thanks for the ideas.... I'll see if I can find anything on the
> control unit.
>
> Snow..
>
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

But what operates the control level you should have within hands reach
for emergencies. Is that also electric or do you see an extra "T" coming off
your master cylinder?
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"Snow" <snowbal@sympatico.ca> wrote in message
news:1181353394.075241.286840@g4g2000hsf.googlegro ups.com...
> Forgot to mention , the trailer has electric brakes.
>
> Thanks for the ideas.... I'll see if I can find anything on the
> control unit.
>
> Snow..
>
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

But what operates the control level you should have within hands reach
for emergencies. Is that also electric or do you see an extra "T" coming off
your master cylinder?
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"Snow" <snowbal@sympatico.ca> wrote in message
news:1181353394.075241.286840@g4g2000hsf.googlegro ups.com...
> Forgot to mention , the trailer has electric brakes.
>
> Thanks for the ideas.... I'll see if I can find anything on the
> control unit.
>
> Snow..
>
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

But what operates the control level you should have within hands reach
for emergencies. Is that also electric or do you see an extra "T" coming off
your master cylinder?
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"Snow" <snowbal@sympatico.ca> wrote in message
news:1181353394.075241.286840@g4g2000hsf.googlegro ups.com...
> Forgot to mention , the trailer has electric brakes.
>
> Thanks for the ideas.... I'll see if I can find anything on the
> control unit.
>
> Snow..
>
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

This sounds strangely familiar. More info please.

Merrill


On Jun 8, 9:43 pm, Snow <snow...@sympatico.ca> wrote:
> Forgot to mention , the trailer has electric brakes.
>
> Thanks for the ideas.... I'll see if I can find anything on the
> control unit.
>
> Snow..

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

This sounds strangely familiar. More info please.

Merrill


On Jun 8, 9:43 pm, Snow <snow...@sympatico.ca> wrote:
> Forgot to mention , the trailer has electric brakes.
>
> Thanks for the ideas.... I'll see if I can find anything on the
> control unit.
>
> Snow..

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

This sounds strangely familiar. More info please.

Merrill


On Jun 8, 9:43 pm, Snow <snow...@sympatico.ca> wrote:
> Forgot to mention , the trailer has electric brakes.
>
> Thanks for the ideas.... I'll see if I can find anything on the
> control unit.
>
> Snow..

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

This sounds strangely familiar. More info please.

Merrill


On Jun 8, 9:43 pm, Snow <snow...@sympatico.ca> wrote:
> Forgot to mention , the trailer has electric brakes.
>
> Thanks for the ideas.... I'll see if I can find anything on the
> control unit.
>
> Snow..

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

The brake controller is straight electric operation, with two
adjustment wheels. one adjusts the internal pendulem angle and the
other adjusts the amount of braking force of the electric brakes.

there are 3 wires that run from the controller ( I can't see if there
is a fourth wire or not). These wires run to the battery and one wire
(blue I think) runs rearward. I'm figuring that somewhere down the
back of the truck is where they tap'ed into the brake, turn lights.

This looks very similar to my controller http://www.etrailer.com/pc-BC~39510.htm
I'll double check the make and get back to you.

Thanks again

Snow...

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

The brake controller is straight electric operation, with two
adjustment wheels. one adjusts the internal pendulem angle and the
other adjusts the amount of braking force of the electric brakes.

there are 3 wires that run from the controller ( I can't see if there
is a fourth wire or not). These wires run to the battery and one wire
(blue I think) runs rearward. I'm figuring that somewhere down the
back of the truck is where they tap'ed into the brake, turn lights.

This looks very similar to my controller http://www.etrailer.com/pc-BC~39510.htm
I'll double check the make and get back to you.

Thanks again

Snow...

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

The brake controller is straight electric operation, with two
adjustment wheels. one adjusts the internal pendulem angle and the
other adjusts the amount of braking force of the electric brakes.

there are 3 wires that run from the controller ( I can't see if there
is a fourth wire or not). These wires run to the battery and one wire
(blue I think) runs rearward. I'm figuring that somewhere down the
back of the truck is where they tap'ed into the brake, turn lights.

This looks very similar to my controller http://www.etrailer.com/pc-BC~39510.htm
I'll double check the make and get back to you.

Thanks again

Snow...

Re: O.T. trailer wire harnes = brake warning light on. 1992 GMC Serria
 

The brake controller is straight electric operation, with two
adjustment wheels. one adjusts the internal pendulem angle and the
other adjusts the amount of braking force of the electric brakes.

there are 3 wires that run from the controller ( I can't see if there
is a fourth wire or not). These wires run to the battery and one wire
(blue I think) runs rearward. I'm figuring that somewhere down the
back of the truck is where they tap'ed into the brake, turn lights.

This looks very similar to my controller http://www.etrailer.com/pc-BC~39510.htm
I'll double check the make and get back to you.

Thanks again

Snow...