User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 02-09-2021, 11:25 AM #1
Overlander367 Overlander367 is offline
Junior Member
 
Join Date: Nov 2020
Location: Dahlonega
Posts: 18
Overlander367 is on a distinguished road
Overlander367 Overlander367 is offline
Junior Member
 
Join Date: Nov 2020
Location: Dahlonega
Posts: 18
Overlander367 is on a distinguished road
Brake Light Issue

Looking for some insight on a slight issue I am having, my brake lights are no longer working, the odd thing is I can turn on my headlights and they will all illuminate, including the 3rd brake light, when the brake pedal is not even being used.

I know there can be brake light issues when replacing bulbs and using the wrong count filament, not the case in my situation. Based on a few posts I was able to dig up, the likely culprit may seem to be a faulty wire, those same posts also mentioned it would likely be a major pain to track it down.

The other thing throwing a wrench in the plan is that I just recently had the front calipers replaced, the rear brake shoes replaced, and the e-brake adjusted, I am thinking this is just a coincidence, but is there somewhere I should be looking where this work was completed that may effect wiring?

Ultimately, if faulty wiring and will require an electrical engineering degree to find, I will more than likely disregard as the vehicle stays offroad and on FS areas. Outside of the obvious safety issue, would there be any other worries mechanically if disregarding.

Another thing I might mention, I have the Andy Mod wire cut, not wired to a switch, to where ABS and VSC are permanently disabled, could there be an issue there?

Any thoughts are appreciated.

2001 4 Runner SR5
Overlander367 is offline   Reply With QuoteReply With Quote
Old 02-09-2021, 11:41 AM #2
jgue467's Avatar
jgue467 jgue467 is offline
Senior Member
 
Join Date: Sep 2011
Location: Austin, Texas
Posts: 2,738
jgue467 has a spectacular aura about jgue467 has a spectacular aura about jgue467 has a spectacular aura about
jgue467 jgue467 is offline
Senior Member
jgue467's Avatar
 
Join Date: Sep 2011
Location: Austin, Texas
Posts: 2,738
jgue467 has a spectacular aura about jgue467 has a spectacular aura about jgue467 has a spectacular aura about
Dash lights work (main dash lights not so much the individual warnings lights)? Front marker lights work? Both are on the same circuit.

Guessing you checked the fuse for continuity?

I don't think the other things you've done are related.

A 'bad' wire usually shorts out, hence checking the fuse first....
__________________
2001 Limited 4WD - 328K - SunfireRed\Thunder Cloud; - 265/75/16 Michelin A/T2s - Fat Pat's 1.5" BL, ZERO RUST - StopTech ANGLED rotors - Magnefine trans filter - In series trans cooler, ORIGINAL: paint, engine, 4wd, trans, mstr cyl & brake system, rear axle seals, A/C, steering pump, steering rack, front/center/rear diffs, all electric motors, seat heaters and so on. WooHoo!!
Oh yeah, GO LONGHORNS!

Last edited by jgue467; 02-09-2021 at 11:42 AM. Reason: details
jgue467 is offline   Reply With QuoteReply With Quote
Old 02-09-2021, 11:53 AM #3
Overlander367 Overlander367 is offline
Junior Member
 
Join Date: Nov 2020
Location: Dahlonega
Posts: 18
Overlander367 is on a distinguished road
Overlander367 Overlander367 is offline
Junior Member
 
Join Date: Nov 2020
Location: Dahlonega
Posts: 18
Overlander367 is on a distinguished road
Quote:
Originally Posted by jgue467 View Post
Dash lights work (main dash lights not so much the individual warnings lights)? Front marker lights work? Both are on the same circuit.

Guessing you checked the fuse for continuity?

I don't think the other things you've done are related.

A 'bad' wire usually shorts out, hence checking the fuse first....
All other lights work, I ran it through the car wash yesterday and wife brought it up when she was behind me on the way home, it was already late so I have not pulled any fuses yet but would think it odd if a fuse was blown. I would think they would either work or not, not work when the headlights are turned on. Will dig in deeper and definitely check fuses when I get home this evening, just sitting at work now thinking heavy and hoping there may be something obvious out there that I am ignorant about or failed to find searching. Thank you.
Overlander367 is offline   Reply With QuoteReply With Quote
Old 02-09-2021, 12:36 PM #4
spartacus's Avatar
spartacus spartacus is offline
Senior Member
 
Join Date: Mar 2010
Location: denver
Posts: 1,812
spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all
spartacus spartacus is offline
Senior Member
spartacus's Avatar
 
Join Date: Mar 2010
Location: denver
Posts: 1,812
spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all
Quote:
Originally Posted by Overlander367 View Post
Looking for some insight on a slight issue I am having, my brake lights are no longer working, the odd thing is I can turn on my headlights and they will all illuminate, including the 3rd brake light, when the brake pedal is not even being used.

I know there can be brake light issues when replacing bulbs and using the wrong count filament, not the case in my situation. Based on a few posts I was able to dig up, the likely culprit may seem to be a faulty wire, those same posts also mentioned it would likely be a major pain to track it down.

The other thing throwing a wrench in the plan is that I just recently had the front calipers replaced, the rear brake shoes replaced, and the e-brake adjusted, I am thinking this is just a coincidence, but is there somewhere I should be looking where this work was completed that may effect wiring?

Ultimately, if faulty wiring and will require an electrical engineering degree to find, I will more than likely disregard as the vehicle stays offroad and on FS areas. Outside of the obvious safety issue, would there be any other worries mechanically if disregarding.

Another thing I might mention, I have the Andy Mod wire cut, not wired to a switch, to where ABS and VSC are permanently disabled, could there be an issue there?

Any thoughts are appreciated.

2001 4 Runner SR5
Could be a dirty ground loose wiring rusty socket. Test the socket pins should have 12 volts Have some one step on the brakes and check.. Turn your hazards on and see if they work I believe they use the same filament.

White/Black- Ground
Green- Running lights
Green/White- Stop Lights

edit: Just noticed you have 2001. There was a change in the tail light harness in 01 and 02.

Last edited by spartacus; 02-09-2021 at 12:59 PM.
spartacus is offline   Reply With QuoteReply With Quote
Old 02-09-2021, 01:07 PM #5
spartacus's Avatar
spartacus spartacus is offline
Senior Member
 
Join Date: Mar 2010
Location: denver
Posts: 1,812
spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all
spartacus spartacus is offline
Senior Member
spartacus's Avatar
 
Join Date: Mar 2010
Location: denver
Posts: 1,812
spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all spartacus is a name known to all
Courtesy of @TheDurk . the tail lighthe wiring 2001 4runner.
Attached Images
Brake Light Issue-screenshot_2021-02-09-10-03-31-png 
spartacus is offline   Reply With QuoteReply With Quote
Old 02-09-2021, 02:07 PM #6
phattyduck phattyduck is offline
Senior Member
 
Join Date: Mar 2016
Location: Pasadena, CA
Posts: 3,878
phattyduck has much to be proud of phattyduck has much to be proud of phattyduck has much to be proud of phattyduck has much to be proud of phattyduck has much to be proud of phattyduck has much to be proud of phattyduck has much to be proud of phattyduck has much to be proud of
phattyduck phattyduck is offline
Senior Member
 
Join Date: Mar 2016
Location: Pasadena, CA
Posts: 3,878
phattyduck has much to be proud of phattyduck has much to be proud of phattyduck has much to be proud of phattyduck has much to be proud of phattyduck has much to be proud of phattyduck has much to be proud of phattyduck has much to be proud of phattyduck has much to be proud of
Does the shifter come out of Park correctly when the brake pedal is applied? Does the cruise control cancel when you press the brakes? Same two questions, but with the head lights turned on?

Are the brake lights full brightness when the headlights are on, or are they dim?

I think step 1 is finding and unplugging the trailer light adapter. I think on the 01/02's it is a factory installed thing behind the driver's side trunk panel.

-Charlie
__________________
'99 4Runner SR5 Auto - 4WD swapped
'89 Camry Alltrac LE 3S-GTE 5spd
'16 Honda Odyssey
Previous: '88 Camry Alltrac LE 3S-GE BEAMS, 90 Camry 3S-GTE, 90 Camry DX, '03 WRX wagon, '08 Outback XT
phattyduck is offline   Reply With QuoteReply With Quote
Old 02-09-2021, 02:36 PM #7
gamefreakgc's Avatar
gamefreakgc gamefreakgc is offline
Elite Member
 
Join Date: Oct 2014
Location: Citrus Heights, California
Posts: 6,269
Real Name: Jerod
gamefreakgc is a splendid one to behold gamefreakgc is a splendid one to behold gamefreakgc is a splendid one to behold gamefreakgc is a splendid one to behold gamefreakgc is a splendid one to behold gamefreakgc is a splendid one to behold gamefreakgc is a splendid one to behold
gamefreakgc gamefreakgc is offline
Elite Member
gamefreakgc's Avatar
 
Join Date: Oct 2014
Location: Citrus Heights, California
Posts: 6,269
Real Name: Jerod
gamefreakgc is a splendid one to behold gamefreakgc is a splendid one to behold gamefreakgc is a splendid one to behold gamefreakgc is a splendid one to behold gamefreakgc is a splendid one to behold gamefreakgc is a splendid one to behold gamefreakgc is a splendid one to behold
Not saying you are negligent, but it is possible both brake bulbs are just burnt out. One filament can work and the second can go out which makes it look like the bulb is fine, but won't illuminate when you press on the brake pedal. It's only about $5 to rule that out before you start chasing wires. Also, might be good to just replace the fuse for the brake circuit or swap it with another fuse that's good on the fuse box.
__________________
'98 4Runner SR5 - 4x4 JDM 5VZ-FE Supercharged - 233K miles.
326WHP 347TQ

AEM F/IC 6, 11 PSI, 3" Intake and 3" Exhaust
Jerod's Supercharged T[u]RD Build
gamefreakgc is offline   Reply With QuoteReply With Quote
Old 02-09-2021, 04:26 PM #8
Overlander367 Overlander367 is offline
Junior Member
 
Join Date: Nov 2020
Location: Dahlonega
Posts: 18
Overlander367 is on a distinguished road
Overlander367 Overlander367 is offline
Junior Member
 
Join Date: Nov 2020
Location: Dahlonega
Posts: 18
Overlander367 is on a distinguished road
Quote:
Originally Posted by spartacus View Post
Courtesy of @TheDurk . the tail lighthe wiring 2001 4runner.
Oh this is great, I hope I don't have to use, but will be perfect to reference if chasing.

Quote:
Originally Posted by phattyduck View Post
Does the shifter come out of Park correctly when the brake pedal is applied? Does the cruise control cancel when you press the brakes? Same two questions, but with the head lights turned on?

Are the brake lights full brightness when the headlights are on, or are they dim?

I think step 1 is finding and unplugging the trailer light adapter. I think on the 01/02's it is a factory installed thing behind the driver's side trunk panel.

-Charlie
Shifter release is permanently stuck in contact due to the VSC/ABS being disabled. Will test cruise control tonight when I get home. They are bright as can be when the headlights are on, no dimness, no flutter. Interesting thought on the trailer adapter, read an older post where someone had issue with their trailer plug causing gremlins, symptoms were a bit different, will be easy enough to disconnect as I will never use this vehicle to haul.

Quote:
Originally Posted by gamefreakgc View Post
Not saying you are negligent, but it is possible both brake bulbs are just burnt out. One filament can work and the second can go out which makes it look like the bulb is fine, but won't illuminate when you press on the brake pedal. It's only about $5 to rule that out before you start chasing wires. Also, might be good to just replace the fuse for the brake circuit or swap it with another fuse that's good on the fuse box.
Fair assessment, bulbs def. are not burned though, the brightness is overly obvious that brake lights are illuminated, like you said though, cheap and easiest before digging through the electrical diagram provided. Will give it a go to test along with new fuses, worse case I have known new components there.



Thanks for the thoughts, does not seem like it could be a more detrimental issue causing this, appears that it will be directly related to the wiring, bulbs. As much stuff that has been done to this vehicle previously, my mind gets to wandering on how basic issues can blow up or be underlying nightmares.
Overlander367 is offline   Reply With QuoteReply With Quote
Old 02-09-2021, 08:32 PM #9
Overlander367 Overlander367 is offline
Junior Member
 
Join Date: Nov 2020
Location: Dahlonega
Posts: 18
Overlander367 is on a distinguished road
Overlander367 Overlander367 is offline
Junior Member
 
Join Date: Nov 2020
Location: Dahlonega
Posts: 18
Overlander367 is on a distinguished road
Alright, got it figured out. Running through all the things that were brought up above, while getting ready to pull my bulbs I noticed a wire coming out of the right rear housing. This wire is what use to power the license plate light (which also included a three light brake light) on my tire carrier bumper. While wiggling it I noticed the brake lights would cut on and off.

At this point, I am thinking this is going to be an easy fix, I care nothing about a license plate light so I just trim the wire behind where it is making the bad connection and coil it neatly into the housing. Try the brakes and nothing, turn the lights on and now it is just the tail lights illuminating as you would expect, brake lights no longer permanently on.

Check the fuse, and sure enough, when I trimmed the wires, I blew it. New fuse and good as new. Easy fix, thanks for the advice, updating in case anyone else has the problem, ended up being faulty wiring in aftermarket lighting that made a constant connection due to brake light being tied in with the tail light wire that powered the license plate light.
Overlander367 is offline   Reply With QuoteReply With Quote
Reply

Tags
brake , issue , light , thing , wire

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Strange E-brake Light Issue sam.basye General Discussions 4 12-08-2017 03:27 AM
Brake light issue HomeStar 5th gen T4Rs 2 07-10-2016 01:54 PM
Brake Light issue yotat3ch 3rd gen T4Rs 0 11-21-2014 04:03 AM
3rd Brake Light Issue JDSupreme 4th Gen T4Rs 2 08-04-2013 08:37 PM
odd brake light issue kelali 4th Gen T4Rs 2 02-12-2012 08:01 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 12:05 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2020