I bought new LED headlights with halo for my 98 TJ from Amazon a year and a half ago. Never connected the halo but headlights worked fine. Now the high beam doesn’t work at all. When I push the multi function switch forward, the lights just turn off. I hooked up my plow lights and both low and high beam works. Any suggestions?
High beams not working
- Thread starter Ruffian1911
- Start date
Get some test leads...even jumper cables if you're careful and test the lights...unplug them...my guess is the high burned out.
-Mac
-Mac
Good that takes the MFS out of the list of possibilities. If you have a volt meter I'd check for 12 volts on both the high and low beam connection points on the back of the driver's side headlight connector. Find the low beam connector first by finding which one has 12 volts on it, then turn the high beams on and measure at the other connector (high beam) which is next to the low beam connector. If there's 12 volts on the high beam connector you have a pair of bad LED headlights. The passenger-side gets its power from the driver's side. And they could have burned out at different times, it's not always easy to notice when just one high beam isn't working when driving.
WestCoastDan
TJ Addict
So I tested the headlight connector and there was no power on the high beam side of the connector. Turns out there was a loose connection on the A/B toggle switch for the plow/normal lights. Got them high beams working now!!
Thought I will post my (simple) solution to this one to hopefully save someone else from chasing their tail around for days. I recently purchased a 97 TJ that is in GREAT shape. Only two issues it had was the wipers did not work (wiper motor replacement fixed that) and the high beam headlights did not work. All fuses were good and from everything I read there is no relay in this circuit. After extensive research and trouble shooting, I opted to replace the multi-function switch, even though I did not think this to be the problem since the blue high beam indicator light on the dash comes on when switching to high beams. And I was right. The MFS did not fix it either. Ultimately what I found was that the high beam power wire itself was broken off and pulled back into the harness just behind the left (drivers side) head lamp. This was not initially obvious because there is a 2nd wire on that same connector terminal that provides power from the left hand headlight over to the right hand side. Which also explains why neither headlight worked on high beam. So if you have a similar issue (neither high beam headlight works, but blue indicator on dash lights and fog lights shut off when switching to high beam), Check the plug right at the back of the left side headlight. There should be *two* red/or. wires connected to high beam terminal. not just one.
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