turn signal/hazard not working, 2003 - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 09-29-2012, 04:38 PM   #1
Newb
 
Join Date: Sep 2012
Posts: 3
turn signal/hazard not working, 2003

Yesterday I connected my trailer to my 2003 Jeep Wrangler Sport to check the trailer's lights were working ok. I turned on the Hazard lights and when I did a buzzing kind sound came from the steering column for a couple of seconds. The hazard lights didn't work and afterward the turn signals also do not work.

I checked the fuse (13) and it is intact.

First I replaced the flasher, I put in a Napa EP-27, it did not solve the problem.

Next I replaced the turn signal switch, sadly I still don't have turn signal or hazard lights working. Nothing happens if you move the signal arm or turn on the hazards.

I can call and make an appointment for my favorite shop to look at it, but they're a few weeks out. Have any ideas before I do?

wplate is offline   Quote Quick Reply
Old 09-29-2012, 05:12 PM   #2
Jeeper
 
Notoriously_rob's Avatar
 
Join Date: Jun 2012
Posts: 684
Relay under steerin column in the back- easy fix

Notoriously_rob is offline   Quote Quick Reply
Old 09-29-2012, 05:17 PM   #3
Supporting Member

WF Supporting Member
 
Water Dog's Avatar
 
Join Date: Mar 2011
Location: Roseville, CA
Posts: 6,154
Images: 11
Your turn signals are fed THROUGH you flasher switch. It is probably a faulty hazzard switch or a connection there if your fuses are all good. Try this: with the key on and one of the turn signals on, slide the flasher switch back and forth slowly a couple of times and see if you can get your turn signals to try and work. If they make an attempt, replace the hazzard switch.
Water Dog is online now   Quote Quick Reply
Old 09-29-2012, 05:59 PM   #4
Jeeper
 
RUBI 4 MY MRS's Avatar
 
Join Date: Feb 2011
Location: California/Nevada
Posts: 1,443
Check the other fuse. The 13 is for the signals. The flasher fuse is in the PDC in front of the battery. I think for ’03 it is # 27.
__________________


'05 Rubi TJ Unlimited
'93 Toyota 4Runner
RUBI 4 MY MRS is online now   Quote Quick Reply
Old 09-29-2012, 08:03 PM   #5
Newb
 
Join Date: Sep 2012
Posts: 3
Quote:
Originally Posted by RUBI 4 MY MRS View Post
Check the other fuse. The 13 is for the signals. The flasher fuse is in the PDC in front of the battery. I think for í03 it is # 27.
YES that's it! Thank you for directing me to that fuse!

I have turn signals again! Turning on the hazards, though, will kill the fuse again. This happens with both the new turn signal/hazard switch I bought and my original switch assembly so I returned the new one. Any idea for where to turn to diagnose the hazards killing the fuse?

Thank you for helping me find the fuse!
wplate is offline   Quote Quick Reply
Old 09-29-2012, 08:23 PM   #6
Jeeper
 
JeepWrangler4x4's Avatar
 
Join Date: Jan 2011
Posts: 268
check your wires for your trailer light plug... i know one time when i had mine running threw the tailgate, i closed it turned the hazzards on and it buzzed.. i opened the tailgate they worked fine..
JeepWrangler4x4 is offline   Quote Quick Reply
Old 09-29-2012, 10:23 PM   #7
Jeeper
 
RUBI 4 MY MRS's Avatar
 
Join Date: Feb 2011
Location: California/Nevada
Posts: 1,443
That's an odd one. The first question is if you disconnect the trailer lights & work the hazards does that blow the fuse?
__________________


'05 Rubi TJ Unlimited
'93 Toyota 4Runner
RUBI 4 MY MRS is online now   Quote Quick Reply
Old 09-30-2012, 05:30 AM   #8
Jeeper
 
JeepWrangler4x4's Avatar
 
Join Date: Jan 2011
Posts: 268
eh not to odd, i see it at work all the time with smashed abs wires on semi trailers, the wires look fine but when you open the wire up it got smashed so hard the isolation around the wires is cracked on both of them and bam there is the problem
JeepWrangler4x4 is offline   Quote Quick Reply
Old 09-30-2012, 02:07 PM   #9
Jeeper
 
RUBI 4 MY MRS's Avatar
 
Join Date: Feb 2011
Location: California/Nevada
Posts: 1,443
Since there is the added load for the trailer lights & all are flashing at once when the fuse blows & only half of the lights are flashing with the signals, an overload becomes possible even with a higher amp fuse for the flashers. That is why the question whether the fuse blows with the trailer lights disconnected.

The other explanation would be an internal short in the combo flasher. If the fuse still blows with the trailer lights disconnected try the old one & see if the fuse still blows


Quote:
Originally Posted by JeepWrangler4x4 View Post
eh not to odd, i see it at work all the time with smashed abs wires on semi trailers, the wires look fine but when you open the wire up it got smashed so hard the isolation around the wires is cracked on both of them and bam there is the problem
Itís not odd to have a short but it is odd that the flashers & signals which are essentially the same circuit would have a short only for the flashers & not for the turn signals on either side. From the switch itís the same wiring.
__________________


'05 Rubi TJ Unlimited
'93 Toyota 4Runner
RUBI 4 MY MRS is online now   Quote Quick Reply
Old 09-30-2012, 02:21 PM   #10
Jeeper
 
JeepWrangler4x4's Avatar
 
Join Date: Jan 2011
Posts: 268
eh not really single flasher your sending power to 1 hot wire.. with hazards you have 2 hots
JeepWrangler4x4 is offline   Quote Quick Reply
Old 09-30-2012, 05:16 PM   #11
Supporting Member

WF Supporting Member
 
Water Dog's Avatar
 
Join Date: Mar 2011
Location: Roseville, CA
Posts: 6,154
Images: 11
The circuitry for the turn signals/flashers come from two different fuses. Fuse #13 (10amp) is switched at the ignition and runs the turn signals. The hazzard fuse #9 (20 amp) is powered from the battery (hot all the time). These two different circuits come to the hazzard switch and that switch determines which feed is to be used (off for turn signals and on for hazzards) After the hazzard switch, a common hot goes from there to feed the one flasher, and from there the same wires are used through the turn signal switch to feed the rear hazzards and turn signals.

That means, that as has been stated that you either have an overload in what you are trying to power (could be as minor as a few foating wire hairs in your trailer outlet combined with the extra trailer load), or the hazzard switch is directing the hazzard lead to ground somehow. Since you said you changed that out, I would suspect an issue in the trailer harness or plug wiring
Water Dog is online now   Quote Quick Reply
Old 09-30-2012, 07:34 PM   #12
Newb
 
Join Date: Sep 2012
Posts: 3
The trailer is no longer connected, after the first failure I disconnected it. All work described after that had no trailer involved.

So yes, if the Hazard is on something shorts and fuse #27 blows. In fact, at one point after figuring this out I had accidentally left the hazard enabled while I was replacing #27 and the fuse immediately broke.

I cannot say when I last used the hazards successfully, I can't remember.
wplate is offline   Quote Quick Reply
Old 09-30-2012, 08:18 PM   #13
Jeeper
 
RUBI 4 MY MRS's Avatar
 
Join Date: Feb 2011
Location: California/Nevada
Posts: 1,443
Try the old combo flasher.
__________________


'05 Rubi TJ Unlimited
'93 Toyota 4Runner
RUBI 4 MY MRS is online now   Quote Quick Reply
Old 09-30-2012, 08:27 PM   #14
Jeeper
 
RUBI 4 MY MRS's Avatar
 
Join Date: Feb 2011
Location: California/Nevada
Posts: 1,443
Just did a Google search "Napa EP-27". I see a couple Dodge forums with the same problem you have. Put that flasher in & blew a fuse.
__________________


'05 Rubi TJ Unlimited
'93 Toyota 4Runner
RUBI 4 MY MRS is online now   Quote Quick Reply
Old 10-01-2012, 06:40 PM   #15
Supporting Member

WF Supporting Member
 
Water Dog's Avatar
 
Join Date: Mar 2011
Location: Roseville, CA
Posts: 6,154
Images: 11
I would use an OEM flasher just to be sure, but if the flasher in there is working okay with the turn signals, it should work okay for the hazzards. The only difference is that the power is being fed by a different circuit.

When you turn on your turn signals, are both rear lights the same brightness? If they aren't, try pulling both taillight bulbs, then see if you still blow the fuse when you turn on your hazzards.
Water Dog is online now   Quote Quick Reply
Old 08-31-2013, 07:38 PM   #16
Newb
 
Join Date: Aug 2013
Posts: 1
OK. on my 03 Wrangler I have replaced the multi switch due to a short in my fog lights. Once reinstalled the turn signal and hazard flashers did not work. Went and purchased a new conrol module for the back of the multi function switch, replaced it and still no turn signals in either direction or hazards. Is there another Flasher or control unit I am missing. I looked at the fuse and it appeared to be fine but I replaced it any way and still nothing. Is there another component to this system I cant find in the manual? Thanks
ulou is offline   Quote Quick Reply
Old 11-02-2013, 06:19 PM   #17
Newb
 
txlaw2002's Avatar
 
Join Date: Nov 2013
Posts: 12
same here

OK. on my 02 Wrangler I have replaced the multi switch. Once reinstalled the turn signal and hazard flashers did not work.the 13 fuse in the glove box is good. Is the turn signal flasher now bad?
txlaw2002 is offline   Quote Quick Reply
Old 01-08-2014, 12:43 PM   #18
Newb
 
Join Date: Jan 2014
Posts: 1
I also just replaced my Multi function switch due to fog light short. Now all headlights, parking lights and fog lights work perfect but no turn signal or hazards. I transfered the module/relay from the old switch to the new one and none of my fuses are blown. I noticed that the rear signals will breifly flash once when I press on the turn signal arm....thoughts?
2003 Wrangler
AZJeep2003 is offline   Quote Quick Reply
Old 08-03-2014, 04:14 AM   #19
Newb
 
txlaw2002's Avatar
 
Join Date: Nov 2013
Posts: 12
I had bought a bad switch from autozone. Got an OE switch from the dealer and everything worked

txlaw2002 is offline   Quote Quick Reply
Reply

Tags
dead , flasher , hazard , switch

Quick Reply
Message:
Options

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:
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.



Thread Tools

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 12:02 AM.



Jeepģ, 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