Brake lights on all the time? -
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Go Back > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Brake lights on all the time?

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Unread 04-22-2010, 08:24 PM   #1
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1991 YJ Wrangler 
Join Date: Aug 2009
Location: Ohio
Posts: 148
Brake lights on all the time?

Just like the title says. My friend was driving behind me and noticed that it looked like my brake lights were on constantly. They did not change when I applied the brakes. I have just painted the Heep and had the tailights off, but plugged them back into the harness...I checked that. What could it be,...also my left blinker is sporatic, sometimes it blinks sometimes it doesn't, but it comes on? Could they be related? My right blinker is fine. I also checked the bulbs, they seem fine.

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Unread 04-22-2010, 08:37 PM   #2
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1989 YJ Wrangler 
Join Date: Mar 2009
Location: quechee Vermont
Posts: 4,672
if they are on all the time I would say your brake light switch is either malfunctioning or that its out of adjustment.

You may also have a ground issue with the lights since those lights get their ground through the mounting studs (and the body)... I would clean the grounds first and see if that helps your problem.
1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
/l , [____],
()_) ()_)==O=)_)
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Unread 04-22-2010, 08:40 PM   #3
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1989 YJ Wrangler 
Join Date: Oct 2006
Location: Vernon, NJ
Posts: 4,757
Check the bolts that hold the tail lights in. They should have the star washers on them and they make the ground for the lights. No ground makes lights act wacky. If the grounds are good check the brake light switch on the brake pedal. Highly doubt it but after my trans swap I had to adjust the switch because my brake lights were always on. You probably have a ground issue since you had the lights off and just painted.
89' YJ Larado 4.0L,AX15
05' Grand Cherokee Limited, 2"OME lift and a Hemi.
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