Re: Trailer wiring question
 

Do you have a "third brake light" you can tap into?

Spdloader

Re: Trailer wiring question
 

You can't do what you want with diodes. Someone designed that unit and
some silly 3rd brake light units for trailers without knowing how the
power actually works. These units are useless because there is no way
to distinguish power from the brake pedal switch or from the signal
switch. Power is power.

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)


Garth Almgren wrote:
> So, I just picked up a cheap hitch cover with LED brake light built in
> that plugs into the trailer wiring connector. Problem is, it only taps
> the green lead, so the light behaves exactly like the right brake/turn
> light and blinks when I'm signaling right.
>
> My goals are as follows:
> 1) Have the hitch light be on when the brakes are on.
> 2) Have the hitch light NOT blink when either turn signal is on.
> 3) Not damage my Jeep's electrical system in any way.
>
> The question is this: Can I use an isolating diode (like the Roadmaster
> Hy-Power) to connect both the left (yellow) and right (green) feeds
> together and use that as an input for the LED array?
>
> My thinking is that when the brakes are on, I've got #1 covered, since
> both inputs to the diode are giving a solid 12v. When one turn signal or
> the other is on, the light will still be getting a solid 12v from
> whichever light isn't blinking, taking care of #2. I'm still good on #3
> as well, since the diode would protect the left and right circuits from
> interfering with each other.
>
> I think I've got this right and was just going to start experimenting,
> but first I wanted someone with more electronics experience to check my
> thinking so I wouldn't accidentally miss goal #3. :)
>
>

Re: Trailer wiring question
 

You can't do what you want with diodes. Someone designed that unit and
some silly 3rd brake light units for trailers without knowing how the
power actually works. These units are useless because there is no way
to distinguish power from the brake pedal switch or from the signal
switch. Power is power.

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)


Garth Almgren wrote:
> So, I just picked up a cheap hitch cover with LED brake light built in
> that plugs into the trailer wiring connector. Problem is, it only taps
> the green lead, so the light behaves exactly like the right brake/turn
> light and blinks when I'm signaling right.
>
> My goals are as follows:
> 1) Have the hitch light be on when the brakes are on.
> 2) Have the hitch light NOT blink when either turn signal is on.
> 3) Not damage my Jeep's electrical system in any way.
>
> The question is this: Can I use an isolating diode (like the Roadmaster
> Hy-Power) to connect both the left (yellow) and right (green) feeds
> together and use that as an input for the LED array?
>
> My thinking is that when the brakes are on, I've got #1 covered, since
> both inputs to the diode are giving a solid 12v. When one turn signal or
> the other is on, the light will still be getting a solid 12v from
> whichever light isn't blinking, taking care of #2. I'm still good on #3
> as well, since the diode would protect the left and right circuits from
> interfering with each other.
>
> I think I've got this right and was just going to start experimenting,
> but first I wanted someone with more electronics experience to check my
> thinking so I wouldn't accidentally miss goal #3. :)
>
>

Re: Trailer wiring question
 

You can't do what you want with diodes. Someone designed that unit and
some silly 3rd brake light units for trailers without knowing how the
power actually works. These units are useless because there is no way
to distinguish power from the brake pedal switch or from the signal
switch. Power is power.

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)


Garth Almgren wrote:
> So, I just picked up a cheap hitch cover with LED brake light built in
> that plugs into the trailer wiring connector. Problem is, it only taps
> the green lead, so the light behaves exactly like the right brake/turn
> light and blinks when I'm signaling right.
>
> My goals are as follows:
> 1) Have the hitch light be on when the brakes are on.
> 2) Have the hitch light NOT blink when either turn signal is on.
> 3) Not damage my Jeep's electrical system in any way.
>
> The question is this: Can I use an isolating diode (like the Roadmaster
> Hy-Power) to connect both the left (yellow) and right (green) feeds
> together and use that as an input for the LED array?
>
> My thinking is that when the brakes are on, I've got #1 covered, since
> both inputs to the diode are giving a solid 12v. When one turn signal or
> the other is on, the light will still be getting a solid 12v from
> whichever light isn't blinking, taking care of #2. I'm still good on #3
> as well, since the diode would protect the left and right circuits from
> interfering with each other.
>
> I think I've got this right and was just going to start experimenting,
> but first I wanted someone with more electronics experience to check my
> thinking so I wouldn't accidentally miss goal #3. :)
>
>

Re: Trailer wiring question
 

You can't do what you want with diodes. Someone designed that unit and
some silly 3rd brake light units for trailers without knowing how the
power actually works. These units are useless because there is no way
to distinguish power from the brake pedal switch or from the signal
switch. Power is power.

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)


Garth Almgren wrote:
> So, I just picked up a cheap hitch cover with LED brake light built in
> that plugs into the trailer wiring connector. Problem is, it only taps
> the green lead, so the light behaves exactly like the right brake/turn
> light and blinks when I'm signaling right.
>
> My goals are as follows:
> 1) Have the hitch light be on when the brakes are on.
> 2) Have the hitch light NOT blink when either turn signal is on.
> 3) Not damage my Jeep's electrical system in any way.
>
> The question is this: Can I use an isolating diode (like the Roadmaster
> Hy-Power) to connect both the left (yellow) and right (green) feeds
> together and use that as an input for the LED array?
>
> My thinking is that when the brakes are on, I've got #1 covered, since
> both inputs to the diode are giving a solid 12v. When one turn signal or
> the other is on, the light will still be getting a solid 12v from
> whichever light isn't blinking, taking care of #2. I'm still good on #3
> as well, since the diode would protect the left and right circuits from
> interfering with each other.
>
> I think I've got this right and was just going to start experimenting,
> but first I wanted someone with more electronics experience to check my
> thinking so I wouldn't accidentally miss goal #3. :)
>
>

Re: Trailer wiring question
 

On Mon, 16 Jul 2007 22:32:37 -0700, "L.W. \(Bill\) ------ III"
<LWBill------@------.net> wrote:

> Don't you have a wire leading to that Mexican third light, that everyone
>takes off and throws away? http://www.4x4xplor.com/images/LoD/LoD-12.jpg

Well I wish someone would throw one my way. I wanna put it back*on*
my Jeep. The previous owner thought it looked better without it, I
guess.
--
Old Crow "Yol Bolsun!"
'82 FLTC-P "Miss Pearl"
'95 YJ Rio Grande
BS#133, SENS, TOMKAT, MAMBM


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

Re: Trailer wiring question
 

On Mon, 16 Jul 2007 22:32:37 -0700, "L.W. \(Bill\) ------ III"
<LWBill------@------.net> wrote:

> Don't you have a wire leading to that Mexican third light, that everyone
>takes off and throws away? http://www.4x4xplor.com/images/LoD/LoD-12.jpg

Well I wish someone would throw one my way. I wanna put it back*on*
my Jeep. The previous owner thought it looked better without it, I
guess.
--
Old Crow "Yol Bolsun!"
'82 FLTC-P "Miss Pearl"
'95 YJ Rio Grande
BS#133, SENS, TOMKAT, MAMBM


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

Re: Trailer wiring question
 

On Mon, 16 Jul 2007 22:32:37 -0700, "L.W. \(Bill\) ------ III"
<LWBill------@------.net> wrote:

> Don't you have a wire leading to that Mexican third light, that everyone
>takes off and throws away? http://www.4x4xplor.com/images/LoD/LoD-12.jpg

Well I wish someone would throw one my way. I wanna put it back*on*
my Jeep. The previous owner thought it looked better without it, I
guess.
--
Old Crow "Yol Bolsun!"
'82 FLTC-P "Miss Pearl"
'95 YJ Rio Grande
BS#133, SENS, TOMKAT, MAMBM


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

Re: Trailer wiring question
 

On Mon, 16 Jul 2007 22:32:37 -0700, "L.W. \(Bill\) ------ III"
<LWBill------@------.net> wrote:

> Don't you have a wire leading to that Mexican third light, that everyone
>takes off and throws away? http://www.4x4xplor.com/images/LoD/LoD-12.jpg

Well I wish someone would throw one my way. I wanna put it back*on*
my Jeep. The previous owner thought it looked better without it, I
guess.
--
Old Crow "Yol Bolsun!"
'82 FLTC-P "Miss Pearl"
'95 YJ Rio Grande
BS#133, SENS, TOMKAT, MAMBM


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

Re: Trailer wiring question
 

Sounds like you've never been to Tijuana.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"Old Crow" <walliscrow@yahoo.com> wrote in message
news:ecpr93pk7hhf2ubjosi99jgois4684jnh9@4ax.com...
>
> Well I wish someone would throw one my way. I wanna put it back*on*
> my Jeep. The previous owner thought it looked better without it, I
> guess.
> --
> Old Crow "Yol Bolsun!"
> '82 FLTC-P "Miss Pearl"
> '95 YJ Rio Grande
> BS#133, SENS, TOMKAT, MAMBM
>
>
> --
> Posted via a free Usenet account from http://www.teranews.com
>



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