Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum > YJ No Brake Lights

Join Wrangler Forum Today


Thread: YJ No Brake Lights Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
07-11-2012 07:43 AM
melianguidry
Quote:
Originally Posted by 99jeeper View Post
seen it before,turn signal switch or 4 way switch
I'm new to Jeeps (and mechanics as a whole), so forgive the ignorance. I'm having the same issue and have read read several times on different forums to "check the grounds", what does that mean and how do you do it?
03-18-2011 03:12 PM
VINSANEtm Sure was the turn signal switch. When I wired in the 3 way switch I had to disconnect the connector in order to make it work as turn signals and not just 4 ways. I did this over 6 months ago so apparently I haven't had brake lights for about that long. It was very nice of the other motorists and/or a police officer to inform me I had no brake lights.
03-14-2011 06:21 PM
99jeeper turn signal or 4-way switch
03-14-2011 06:20 PM
99jeeper seen it before,turn signal switch or 4 way switch
03-14-2011 05:45 PM
WhyJayPA Check that your grounds are good before you go spending any money. The lights tend to corrode inside and the screws holding the lights to the body are what makes the contact and grounds the lights.
03-14-2011 08:40 AM
Tyewilly ^x2 turn signal switch $25 and half an hour to change
03-14-2011 08:17 AM
L.A.Offroad You need to replace you turn signal switch as someone above said your brake lights work thru the turn signal switch.
03-14-2011 01:39 AM
VINSANEtm ropanach, thanks for the suggestion. I pulled all the wires from the outer skin and checked them all front to back. Everything appears to be in order.
03-14-2011 01:36 AM
VINSANEtm Thanks 33MTR. After hearing all that I think I may have a new lead. My turn signal switch is broken. The wiper controls and everything still work on it, it just wont stay in position to keep the signal on. I wired in a 3 position toggle switch to use for my signals. I checked all the lights when I did the wiring and it all worked at the time. But who knows now. With the experiences I've had over the past 12 years with my YJ I've learned to expect the unexpected.
03-13-2011 11:27 PM
33MTR Do you have 3rd brake light & if so does it work? On a 95, not sure if it applies to all with 3rd brake light,
power from brake light s/w goes to flasher to turn signal s/w to rear lights...may be either a bad flasher or turn signal s/w.
@ brake light s/w power wire PK/DB,flasher WT/TN,pcm ground sense circuit WT/PK, ground BK. Fuse #3 15A brake light,fuse #4 15A turn sig flasher,fuse #5 20A hazard flasher. This is from a 95 service manual.
From a 90 service manual brake light s/w wires,power PK/BK,to column LB/BK @ column wt to turn/hazard s/w
from turn/hazard s/w @ column connection YL to GY/BK : left rear lights
DG to BR : right lights
above parking brake handle is a body harness connector, pin #7 left rear,pin #5 right rear lights.Check for loose connector,& check the turn signal s/w.
03-13-2011 10:21 PM
ropanach I don't know what the voltages should be, but have you checked for a short in the line going to the units, like one of the frame clips may have cut into the lines and is shorting aross? just a thought. this will also affect your blinker system.
You might need to isolate the ground from the hot.

Hope this is some help to you.
03-13-2011 09:56 PM
VINSANEtm anyone????
03-13-2011 06:02 PM
VINSANEtm I should add that the 13.5v is only with the tail lights on. No change if the brake pedal is pressed of if the flashers are on.
03-13-2011 06:00 PM
VINSANEtm
YJ No Brake Lights

I have a 93 YJ and recently my brake lights went out. Still have tail lights and reverse lights. No flashers either. Let me start by saying I am a motorcycle tech so I know a little bit. I replaced the stoplight switch. I have power to it and through it. I have 12v on both sides of the fuse. I have continuity through the bulb. I have continuity between the bulb socket and the ground plate. I cleaned the rust off the ground plate and soaked the bolts in wd40. Still no brake lights. Here's were I get confused. I have 13.5 volts at the light. But I have it at all times across all the wires. I guess what I'm trying to say is that with the lead in the power wire it reads 13.5 volts no matter what other wire I put the negative lead in. If anyone has any suggestions or knows the proper voltage and continuity tests to do I'd appreciate it. Chiltons is a joke and basically tells you how to change a bulb.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 06:24 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC