Notices
Series I Trouble Shooting This is the place to learn more about or discuss any issues you're having with your RX-8

LEDs caused ABS and TCS failiures

Thread Tools
 
Rate Thread
 
Old May 9, 2006 | 04:54 AM
  #1  
RX4life's Avatar
Thread Starter
Registered User
 
Joined: Jan 2005
Posts: 821
Likes: 0
From: Burnaby, BC
LEDs caused ABS and TCS failiures

well after installing LED lights for the tailights... it triggered a slew of lights.. disabling the ABS TCS and etc..

after a week of diagnosing they figured that the LED bulbs were causing voltage spikes and therefore did not cover the "repair" under warranty.

spent 18hrs on the car replacing ABS modules and reflashing the ECU...

had to pay 5 of those hours and got the starter replaced under warranty (flooded the engine while in the shop) .. love the new starter...

anyways, a word of warning...if any of you were thinking of purchasing them..i guess my ECU is extra sensitive..kinda sux though..

Last edited by RX4life; May 9, 2006 at 04:56 AM.
Reply
Old May 9, 2006 | 07:01 AM
  #2  
BoosTED's Avatar
Registered
iTrader: (2)
 
Joined: Dec 2004
Posts: 2,896
Likes: 2
From: Minneapolis, MN
Where did you buy your LEDs from?

Did you have the resistors on the turn signals?


I have been running mine for a while and have not had any issues.

How soon after installing them did you have issues?
Reply
Old May 9, 2006 | 07:36 AM
  #3  
snkpkp's Avatar
Registered User
 
Joined: Jan 2006
Posts: 158
Likes: 0
From: Dhaka, Bangladesh
thats sucks, do you think its really the LED's? I installed LED's for the parking lights, nothing till now.
Reply
Old May 9, 2006 | 10:52 AM
  #4  
Argento Otto's Avatar
Registered User
 
Joined: May 2005
Posts: 94
Likes: 0
From: The City
Wow that was a lot of time spent for such an "easy" fix...

The problem is using an LED in the 3rd/high-mount brake light. Put a normal incandescent bulb there and... surprise... no more ABS/TSC warning lights.

You CAN use an LED in the 3rd brake light socket, but you have to connect a load resistor, too. This is what I did to resolve that issue when I converted to an all LED setup.

Sorry you had to spend money for this, but at least you got the new starter
Reply
Old May 10, 2006 | 06:49 AM
  #5  
BoosTED's Avatar
Registered
iTrader: (2)
 
Joined: Dec 2004
Posts: 2,896
Likes: 2
From: Minneapolis, MN
Ahh that is why I didn't have any issues I left that as incandecent
Reply
Old May 11, 2006 | 03:58 AM
  #6  
RX4life's Avatar
Thread Starter
Registered User
 
Joined: Jan 2005
Posts: 821
Likes: 0
From: Burnaby, BC
yup there you go.. honestly if i knew the LEDs were causing my ABS and TCS to fail then of course i would have replaced them..i used a resistor for the turn signal but not the 3rd brake light..

i just thought something was wrong in the computer.. oh well..the LED look wasnt worth it anyways.. it was too dull on sunny days especially the turnsignals..
Reply
Old May 24, 2009 | 11:53 PM
  #7  
limpbozkit's Avatar
Gets the WORST mpg
iTrader: (1)
 
Joined: Jul 2008
Posts: 172
Likes: 0
From: Missouri
Originally Posted by Argento Otto
Wow that was a lot of time spent for such an "easy" fix...

The problem is using an LED in the 3rd/high-mount brake light. Put a normal incandescent bulb there and... surprise... no more ABS/TSC warning lights.

You CAN use an LED in the 3rd brake light socket, but you have to connect a load resistor, too. This is what I did to resolve that issue when I converted to an all LED setup.

Sorry you had to spend money for this, but at least you got the new starter
What? How can this be? The third brake light controls the traction control and abs? Please explain?
Reply
Old May 24, 2009 | 11:58 PM
  #8  
Flashwing's Avatar
3-wheeler
 
Joined: Dec 2005
Posts: 2,734
Likes: 1
From: Phoenix
I've been told to NOT replace all 3 rear lights with LED's. For whatever reason it does trigger an ABS failure light if you replace both tails and the 3rd brake light.

How or why I am not sure.
Reply
Old May 25, 2009 | 01:32 AM
  #9  
Demon8's Avatar
Registered User
 
Joined: Aug 2008
Posts: 79
Likes: 0
From: Dallas TX
okay, don't replace all three with leds. Good post.
Reply
Old May 25, 2009 | 01:58 AM
  #10  
krijpipudht's Avatar
Hi guys! My name is Tony.
 
Joined: May 2008
Posts: 490
Likes: 0
From: San Francisco Bay Area 94542, USA. Earth. Solar System. Milky Way
That's interesting.
I have about 90% of the light replace by LEDs, never have any problem.

Reply
Old May 25, 2009 | 06:55 AM
  #11  
limpbozkit's Avatar
Gets the WORST mpg
iTrader: (1)
 
Joined: Jul 2008
Posts: 172
Likes: 0
From: Missouri
I have all L.E.D. tails except for my reverse lights as of 3 days ago. It hasnt tripped my dsc or abs light on its own. I do notice if I push the dsc button to turn off traction control while im driving then, after parking the car for any length of time (like say at wal-mart) then comming back to start driving again my dsc and abs lights will stay on until i turn the car off and re-start again?
Reply
Old May 25, 2009 | 07:04 AM
  #12  
Flashwing's Avatar
3-wheeler
 
Joined: Dec 2005
Posts: 2,734
Likes: 1
From: Phoenix
Might just be an 04 issue then.
Reply
Old May 25, 2009 | 04:24 PM
  #13  
szym0n's Avatar
Registered User
 
Joined: May 2007
Posts: 313
Likes: 0
From: Chicago, IL
it's not the 3rd brake light causing the ABS/TSC lights, cause im having the same issue and the 3rd brake light is not the problem.
Reply
Old May 30, 2009 | 09:49 PM
  #14  
limpbozkit's Avatar
Gets the WORST mpg
iTrader: (1)
 
Joined: Jul 2008
Posts: 172
Likes: 0
From: Missouri
https://www.rx8club.com/series-i-do-yourself-forum-73/diy-l-e-d-3rd-brake-light-resistor-175210/

This is what I did, it's a little more descriptive than,
Originally Posted by Argento Otto
You CAN use an LED in the 3rd brake light socket, but you have to connect a load resistor, too. This is what I did to resolve that issue when I converted to an all LED setup.

Last edited by limpbozkit; May 31, 2009 at 07:56 PM. Reason: added text
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Hunterkelley24
Series I Engine Tuning Forum
14
Jun 14, 2022 08:32 AM
tjohnmeyer
Series I Trouble Shooting
12
Sep 28, 2017 05:03 PM
jasonrxeight
RX-8's For Sale/Wanted
2
Sep 30, 2015 01:53 PM
pjwermuth
RX-8 Discussion
5
Sep 28, 2015 11:36 PM
Stubbs
Series I Wheels, Tires, Brakes & Suspension
0
Sep 27, 2015 04:06 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -5. The time now is 03:35 AM.