Wiring Into Reverse Lights - JeepForum.com

 
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post #1 of 8 Old 11-25-2005, 03:38 PM Thread Starter
mr_user
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Wiring Into Reverse Lights

Hey guys,

Got a great deal today on two more 100w driving lights. I figure I'm going to wire one more into circuit on the roof and I plan on mounting the other one underneath the bumper somewhere in the rear.

My objective is to have the 100w light operate on the same circuit as the reverse lights, meaning power will flow to the light only with the truck in reverse. I'd prefer not to route the light through its own circuit and switch, as wiring 11 feet of 12v wire would get messy and look terrible.

So my question stands, how should I locate the correct wire to tap into? Should I simply solder the power wire from the new light to the existing rear light? Will such a modification trigger the notorious "Rear Lamp Failure" light on the VIC? And finally, do you think it is safe to put one more 100w light in that circuit?

Thanks guys!
Matt


Old: '96 ZJ 4.0, 32" MT/R's, 4.5" Lift, Mickey Thompsons, JKS Disco's

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post #2 of 8 Old 11-25-2005, 03:52 PM
Daerksoul
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Look at a schematic.
No.
Yes.
No.

You're welcome!

1996 ZJ Limited 5.2 NP249 Black with Agate
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post #3 of 8 Old 11-25-2005, 03:54 PM
Daerksoul
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If you have the towing package, a better option might be to tap into the trailer wiring circuit. I'm not sure if there is a lead for a trailer back up light or not though....

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post #4 of 8 Old 11-25-2005, 04:11 PM Thread Starter
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No tow package, I am going to try and tap into the power wire behind the tail light housing. We shall see if it holds up!

Matt

Old: '96 ZJ 4.0, 32" MT/R's, 4.5" Lift, Mickey Thompsons, JKS Disco's

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post #5 of 8 Old 11-25-2005, 04:21 PM
-Joe-
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I think it would be much safer to run a new power wire and use a relay to trigger it from the rear lights when they are on.

- Joe -

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post #6 of 8 Old 11-25-2005, 05:30 PM
MtnbikerWJ
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the stock bulb is only rated around 27 watts. adding something 4x as big might fry the wiring which would be a pain to have to replace. for about $20-25 you could probably get some 10 guage wire and a relay and wire it up to the battery.

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post #7 of 8 Old 11-25-2005, 05:33 PM Thread Starter
mr_user
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Thanks guys,

I think I am going to mount two up on the top roof rail, and operate them on a completely different circuit than the rear lights. I don't want to tap into the 27w and fry the wiring, but thanks for the guidance!

Matt

Old: '96 ZJ 4.0, 32" MT/R's, 4.5" Lift, Mickey Thompsons, JKS Disco's

New: '02 WJ Limited 4.7L, Stock for now
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post #8 of 8 Old 11-25-2005, 05:52 PM
MtnbikerWJ
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Still tap into the reverse lights just use a relay off the reverse lights and the power from the battery it will work the way you want it to that way

04' WJ Laredo 4.0L 4x4
245/75-16 GY MTR's
Rusty's 2" BB
ARB Bull Bar with Piaa 520 drivings, no winch yet though
Kenwood Headunit, Kenwood Sirius Reciever, RF Punch p2002 Amp, RF Punch 10" Sub enclosure
Hypertech power programmer
K&N 77 series FIPK
Flowmaster 50 SUV
Magnaflow Cat
next gears and lsd's and OME coils


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