B-Pillar Voltage Issues!! - JeepForum.com
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Unread 04-21-2013, 11:36 AM   #1
Registered User
2001 WJ 
Join Date: Sep 2010
Location: Prescott, AZ
Posts: 39
B-Pillar Voltage Issues!!

So I am wiring in some LEDs near my pillars. I have never had b-pillar lights, so I thought I would use the wiring for them to install some LEDs. I replaced the door plunger switch that was broken and cleaned the other one up. Afterwards, I went and checked the voltage at the light end of the wire and found out that I am getting 7.5-8v constant. The issue here is that I am getting 12v in the morning or when it has been sitting for a while...The battery is good, and the truck is a daily driver with no battery or voltage issues. What would cause such a dramatic voltage fluctuation in this wire? Power is NOT intermittent, it's just a solid 8v after it's been on for a minute...but I can shut the doors, leave it, and come back in eight hours and get 12v...what's going on here?!?!

luvmyglock is offline   Reply With Quote Quick reply to this message
Unread 05-26-2013, 01:50 PM   #2
Registered User
1991 MJ Comanche 
Join Date: May 2013
Location: Cleveland, OH
Posts: 25
Resistance increases with heat. I'd look into any heat sources nearby (or maybe even the sun). You could try replacing the wire too. LEDs run at .8 to 1.5 V so as long as you wire them in parallel, there should be no problems with your 8v supply.
Avionic1JN is offline   Reply With Quote Quick reply to this message

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