Need help with brake lights on a 2003 Mustang GT - Ford Mustang Forum
LinkBack Thread Tools
post #1 of 5 (permalink) Old 02-10-2009 Thread Starter
m00fresh's Avatar
Joined: Feb 2009
Location: val verde
Posts: 4
Need help with brake lights on a 2003 Mustang GT

Hi everyone I'm new here but have been reading the forums for close to a month. well my problem is that I have rear lights but, no break lights, everything else seems to be working fine. I did check the fuses and are perfectly fine. I also checked the break switch and thats working as well. I just installed a new head unit and did mess up with the illuminating wires but have fixed that. i have a 03 gt. any ideas please help.


m00fresh is offline  
Sponsored Links
post #2 of 5 (permalink) Old 02-10-2009
mychoads's Avatar
Joined: Jan 2009
Location: Harrington
Posts: 54
How did you check the brake switch? You can try adjusting it, but I would check it with a multi-meter to make sure its operating properly.

mychoads is offline  
post #3 of 5 (permalink) Old 02-10-2009
4.6L Member
idiotsgod's Avatar
Joined: Dec 2008
Location: Roanoke,
Posts: 165
When this happened to me it turned out to be the switch that the turn signal is apart of in the steering column. I dont remember what the name of it is off the top of my head, but it was an easy fix.

2001 Mustang GT Mineral Grey
GMR #0017
125 ZEX Wet kit
idiotsgod is offline  
post #4 of 5 (permalink) Old 09-04-2013
jbr3rd's Avatar
Joined: Sep 2013
Location: New England
Posts: 12
Curious how you resolved this problem? My brake lights aren't working on left side, but function well on right side. I swapped a bulb and proved brake lights still worked on right, but not on left. even swapped the whole light module and right continued to work, left not. Now wondering can the brake switch under dash behind master cylinder fail on half a side or is it a works or doesn't sort of part?
jbr3rd is offline  
post #5 of 5 (permalink) Old 09-07-2013
4.6L Member
First03GT's Avatar
Joined: Jun 2010
Location: Lawrence
Posts: 91
I had the same problem last week, turned out to be a broken wire right at the brake pedal switch.
First03GT is offline  
Sponsored Links

break lights

Quick Reply

Register Now

In order to be able to post messages on the Ford Mustang 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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a VALID email address for yourself, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Borla Stingers for my 2004 Mustang Mach 1! spartacus 4.6L Talk 15 06-14-2009 02:22 AM
2006 V6 Mustang... Need advice on 20 inch wheels robles Wheels and Tires 12 08-07-2008 01:03 AM
2006 Mustang GT... Do I need to upgrade valve springs with a competition stage 2 cam? silverstang01 2005-2010 Mustang GT Tech 43 07-16-2008 03:10 PM
Mustang GT... Car running lean with unsteady idle surfnstang 2005-2010 Mustang GT Tech 28 11-02-2007 03:55 PM
Ordered 4.10s for my 2000 Mustang GT... A few questions about install dawrr 4.6L Tech 16 10-07-2007 06:55 PM

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 On

For the best viewing experience please update your browser to Google Chrome

Search Engine Friendly URLs by vBSEO 3.6.1