reverse lights cause voltage drop. - Jeep Wrangler Forum

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Old 06-19-2011, 01:29 PM   #1
Join Date: Apr 2011
Posts: 154
reverse lights cause voltage drop.

i have a 95 wrangler yj and the owner i got it from put in some rear led tail lights. when i put my jeep in reverse the alternator gauge goes from about 13.5 v to about 10 v and causes my jeep to start idling really rough until i take it out of reverse. the reverse light dont even come on when i put it in reverse. i found the blinker.tail, and running light wires that come back into a 4 flat and connect to my lights but i dont know which wire is for the reverse lights and why it would be shorting out my alternator. any ideas?
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Old 06-19-2011, 05:58 PM   #2
Join Date: Dec 2010
Posts: 268
sounds like the reverse light circuit is grounded or controling a relay thats grounded also check that circuit for a proper fuse
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