2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

stop warning light problem

Thread Tools
 
Search this Thread
 
Old 03-04-05, 08:49 PM
  #1  
Full Member

Thread Starter
 
vrooom305's Avatar
 
Join Date: Sep 2002
Location: USA
Posts: 132
Likes: 0
Received 0 Likes on 0 Posts
stop warning light problem

Ok I got a weired problem. Sometimes when I step on the brakes the stop warning light turnes on. But this is rare.

It's almost a guarantee that the stop warning light will turn on:

1) When I FIRST step on the brakes and THEN turn on the signals (left/right) the stop warning starts blinking. But the front and rear signals are working fine. I don't think that the parking lights on the fenders should be blinking.

2) When I FIRST step on the break pedal and THEN put into reverse (auto transmission). But the reverse lights work.

3) The stop warning light sometimes turns on when I FIRST step on the brake and then move the sun/moon roof front and back. The sun/moon roof works fine.

thanks
Old 03-04-05, 09:28 PM
  #2  
Rotary Enthusiast

 
Adam's Avatar
 
Join Date: Apr 2004
Location: King of the road
Posts: 908
Likes: 0
Received 0 Likes on 0 Posts
replace your brake light
Old 03-04-05, 09:38 PM
  #3  
Full Member

Thread Starter
 
vrooom305's Avatar
 
Join Date: Sep 2002
Location: USA
Posts: 132
Likes: 0
Received 0 Likes on 0 Posts
But all the brake lights still work. All the rear brake lights light up when I step on the brakes. Is it possible that when ever I do the actions I stated above they could be messing with the brake light(s)?
Old 03-04-05, 09:42 PM
  #4  
Like Ghandi with a gun

 
Kenteth's Avatar
 
Join Date: Mar 2003
Location: Rapid City, SD
Posts: 4,584
Likes: 0
Received 0 Likes on 0 Posts
IIRC the brake bulbs are dual filament... check to makesure both filaments are good.
Old 03-04-05, 10:58 PM
  #5  
Former Moderator. RIP Icemark.
 
Icemark's Avatar
 
Join Date: Apr 2001
Location: Rohnert Park CA
Posts: 25,896
Likes: 0
Received 19 Likes on 19 Posts
sounds like a bad ground at the lights, or bad voltage in the car.
Old 03-04-05, 11:15 PM
  #6  
I'm a boost creep...

 
NZConvertible's Avatar
 
Join Date: Jan 2002
Location: Auckland, New Zealand
Posts: 15,608
Likes: 0
Received 8 Likes on 8 Posts
Originally Posted by Kenteth
IIRC the brake bulbs are dual filament...
One for the brake lights, one for the taillights...
Old 03-05-05, 12:33 AM
  #7  
Full Member

Thread Starter
 
vrooom305's Avatar
 
Join Date: Sep 2002
Location: USA
Posts: 132
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Icemark
sounds like a bad ground at the lights, or bad voltage in the car.
thanks, i'll look into the grounds....

oh yeah and I just replaced all of the brake lights and i still have the same problem. so i think that icemark nailed it...
Old 03-05-05, 02:12 AM
  #8  
Rotary Enthusiast

 
Adam's Avatar
 
Join Date: Apr 2004
Location: King of the road
Posts: 908
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by vrooom305
Ok I got a weired problem. Sometimes when I step on the brakes the stop warning light turnes on. But this is rare.

It's almost a guarantee that the stop warning light will turn on:

1) When I FIRST step on the brakes and THEN turn on the signals (left/right) the stop warning starts blinking. But the front and rear signals are working fine. I don't think that the parking lights on the fenders should be blinking.

2) When I FIRST step on the break pedal and THEN put into reverse (auto transmission). But the reverse lights work.

3) The stop warning light sometimes turns on when I FIRST step on the brake and then move the sun/moon roof front and back. The sun/moon roof works fine.

thanks

Yeah if it blinks when you have your turn sig on, i would say Ground also
Old 03-05-05, 08:13 AM
  #9  
Full Member

Thread Starter
 
vrooom305's Avatar
 
Join Date: Sep 2002
Location: USA
Posts: 132
Likes: 0
Received 0 Likes on 0 Posts
Okay I checked the grounds to the lights (the black wires right?) and they all seem like they are in good condition. But what I haven't checked is which part of the body it ground to.

The farthest that I've followed the grounding wires was a little bit past the antenna. Anyone know where the wires end up?
Old 03-05-05, 09:31 AM
  #10  
Former Moderator. RIP Icemark.
 
Icemark's Avatar
 
Join Date: Apr 2001
Location: Rohnert Park CA
Posts: 25,896
Likes: 0
Received 19 Likes on 19 Posts
Originally Posted by vrooom305
thanks, i'll look into the grounds....

oh yeah and I just replaced all of the brake lights and i still have the same problem. so i think that icemark nailed it...
Did you replace the lights (as in) S4 to S5 or something like that??? if so you may need to use the light harness based on what year you have, not the one that came with the lights.
Old 03-05-05, 11:38 AM
  #11  
Full Member

Thread Starter
 
vrooom305's Avatar
 
Join Date: Sep 2002
Location: USA
Posts: 132
Likes: 0
Received 0 Likes on 0 Posts
^ I didn't do any S4 to S5 conversion. I just replaced the bulbs with an OEM replacement from Shucks to check if that would solve the problem. But it didn't, now I think it really is a grounding issue. But I just don't why because as far as I can tell the wires look fine.

I guess I could try regrounding the major parts in my car (like battery terminal, engine block to firewall, etc.). But I still think that shouldnt be necessary for me to do in order to solve the this problem.

thanks for the help.

Last edited by vrooom305; 03-05-05 at 11:44 AM.
Old 03-05-05, 01:56 PM
  #12  
Former Moderator. RIP Icemark.
 
Icemark's Avatar
 
Join Date: Apr 2001
Location: Rohnert Park CA
Posts: 25,896
Likes: 0
Received 19 Likes on 19 Posts
If it is a S4 it could also be a bad CPU, but that is pretty rare.
Old 03-05-05, 02:05 PM
  #13  
Full Member

Thread Starter
 
vrooom305's Avatar
 
Join Date: Sep 2002
Location: USA
Posts: 132
Likes: 0
Received 0 Likes on 0 Posts
I bet with my luck IT IS A BAD CPU

But I just picked up some grounding wire....hope this will help in some way
Old 03-05-05, 02:10 PM
  #14  
Former Moderator. RIP Icemark.
 
Icemark's Avatar
 
Join Date: Apr 2001
Location: Rohnert Park CA
Posts: 25,896
Likes: 0
Received 19 Likes on 19 Posts
well on the S4 the Brake warning is the 4 pin plug/board on the bottom of the CPU. They almost never fail. But I do have rebuilt ones on my webstore if you need one.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
stickmantijuana
Microtech
30
04-23-16 06:37 PM
fastsaab
New Member RX-7 Technical
5
08-19-15 11:42 AM



Quick Reply: stop warning light problem



All times are GMT -5. The time now is 07:09 AM.