HELP! Brake light problem - MR2 Owners Club Message Board
 
LinkBack Thread Tools
post #1 of 6 (permalink) Old January 5th, 2017, 23:12 Thread Starter
Registered User
 
Join Date: Nov 2016
Posts: 3
OldTrader Rating: (0)
HELP! Brake light problem

Hi MR2OC,

I have a really weird problem with my MR2, hear me out.

1. My brake lights, side markers, and front turn signals turn on whenever I press the brake light.
2. When I turn on my lights. The rest of the lights are working fine but the brake lights are staying on the "ON" position.
3. Upon closer inspection. Whenever all of the lights are on, if I press the brakes, the brake lights gets a "TINY" bit brighter.
4. Whenever I press on the brake when the car isn't on, I hear a clicking noise. Bad relay potentially?

I've replaced the fuses, the brake light switch (which was a pain).

Is it a bad headlight relay? brake light relay (if there is one)? bad ground?

Help me out fellow MR2 owners because everyone I talked to have suggested the fuse and light switch solution but that wasn't my solution.

THANK YOU
frodenstein is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old January 5th, 2017, 23:55
Registered User
 
Join Date: Jul 2016
Posts: 368
OldTrader Rating: (0)
Sounds like a short to power inside the headlight relay hard to say exactly
Abesdub is offline  
post #3 of 6 (permalink) Old January 6th, 2017, 10:00
Lifetime Gold
 
Join Date: Jan 2007
Location: Ithaca, NY
Age: 64
Posts: 10,669
OldTrader Rating: (3)
Missing ground for one of the rear light clusters. That is how the parking lights get powered through the brake light circuit. It is usually a missing ground when two completely unrelated circuits start to interact. Just look for the common point where both are grounded.
rmeller is offline  
 
post #4 of 6 (permalink) Old January 6th, 2017, 18:22
Registered User
 
Join Date: Nov 2012
Location: S F Bay Area
Age: 71
Posts: 342
OldTrader Rating: (0)
I remember a thread a year or so ago where a guy had a problem sort of like that and the problem was that someone had put a single filament bulb in a socket that required a dual filament bulb. The button on the tip of the single filament bulb was shorting the brake light ckt. to the tail light ckt.
hoonoze is offline  
post #5 of 6 (permalink) Old January 6th, 2017, 19:11
Registered User
 
Join Date: Jul 2016
Posts: 368
OldTrader Rating: (0)
Honoze that happened to me too actually a couple months ago, but on mine a dual filament bulb the glass somehow came detached from its socket thus the vacuum escaped and it popped and caused a short popping the tail light fuse every time until I got to check all bulbs one by one
Abesdub is offline  
post #6 of 6 (permalink) Old January 9th, 2017, 10:44
Registered User
 
Join Date: Jul 2014
Posts: 19
OldTrader Rating: (0)
Garage
It's worth mentioning when all the brake lights are either staying on or not working, it may be a good idea to crawl down next to the pedals and double check to make sure the switch is adjusted properly. Both have happened to me just from the car sitting or changing brake hardware. That's probably not the problem in your case but the other suggestions would be good places to check too.
mechanical is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the MR2 Owners Club Message Board 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:
OR

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.




Currently Active Users Viewing This Thread: (0 members)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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 On
Pingbacks are On
Refbacks are On

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