abs and brake warning lights

Looks to me like quite a few of us Protege owners are having this ABS failure problem. Sorry if this is long......here's my story. I hope it ends up helping somehow.

The first time my ABS failed was last winter, somewhere around 27K miles. The brake pads still had plenty of meat on them (about 1/2 gone). I had put snow tires on (LM22s) a few weeks earlier. I very lightly touched the brakes and the ABS kicked in (should not have). The pedal was very hard also.

After this, the ABS and BRAKE lights began coming on simultaneously every once in a while. Sometimes the ABS would kick in VERY prematurely with a very hard pedal. Other times, the pedal would be very soft and ABS would not function. This was on snowy/icy roads but also happened on dry roads.

It was still in the warranty period so I brought it to the dealer. They said they drove it and could not get it (light/ABS failure) to happen. I told them to go drive it again. Then they said that it did happen. They told me that I needed a full brake job (all rotors, pads, bleeding) and it would not be covered because they are wear items. I said no way (cost was insane) and I would do that myself if it really needed it. So I asked them what is causing the light to come on (you know this light can only come on for certain reasons). They did not know the reasons, but then said that it could be due to low fluid level from to the pads being warn. They said they topped of the fluid and the ABS/Brake lights did not come on during thier test drive. Since they did not replace any parts, this was not covered under the warranty and I had to pay 1.5hrs of labor, fluid, and thier stupid additional fee for rags and stuff. I was pissed. I basically gave them my car for a day and paid them a couple hundred bucks so they can tell me they don't know what the hell they are doing. Although, it was worse, they overfilled the MC and brake fluid came out under braking and got all over everything. So they left me with a nice mess. Stupid MFs.

Okay, so I replaced all the brake pads (Hawk HP+/HP), rotors were fine. I hadn't seen this light come on since. However, I had also put my summer tires back on just a few weeks later and of course there was no salt/snow/crud on the roads during the summer. ABS was functioning fine, no lights coming on, this is great. The front Hawk pads (HP+) were squeeking too much so I put the stock pads back on (they still had plenty of mtrl). No problems. ABS still worked fine, until December.

I put my snow wheels/tires on for this winter last month. It's only been a few weeks, but the ABS is failing worse than ever. Light is on almost all the time. If not, it comes on just after premature activation. Then I have no ABS at all, snow covered or dry roads. I have noticed, I can stop much faster on my snow covered/icy road now that the ABS is not functioning.

I think that basically, the ABS SYSTEM in the car sucks. What a brilliant conclusion eh? Heh,heh. I suppose the traction difference between summer and winter tires may have a small effect. Perhaps warn pad (requiring more fluid volume) could contribute also. But it seems to me that this is a controller/valve/sensor problem. I am headed out to the garage to take a look. I'll let you know the outcome.

duff
 
Okay. Here's what I did.

1) Cleaned off all the ABS sensors (crud, brake dust etc).
2) Put the (new) Hawk HP+ pads on the front. (HP rears are still pretty new) The stock front pads really did need replacing this time. Found out that the tab on the outer HP+ pad pushes on the lower spring clip when the pedal is depressed, causing the clip to rub on the rotor and squeal. Solution, bend or remove the clip on the outer pad (stock pads didn't have them anyway). No squeeling now. Brakes bite really good.
3) Flushed the old brake fluid from the lines with the mighty-vac and then bled the brakes like normal.
4) Test drive.

I started the car, ABS & Brake lights did not come on. Good sign. I took it for a ride and did a number of stops to bed the pads. Started with few 50-30s and then did some X0-55s on the freeway. Off the freeway, I did some hard braking and got the ABS to kick in. Woohoo! The ABS worked great. And yes, I still have the LM22s on the car. I took another ride on the freeway and everything was fine....no ABS & Brake lights.

About 5 minutes after I got off the freeway, just crusing at 35-40mph, not even using the brakes, the ABS & Brake lights pop on. WTF!!! I didn't even hit a bump, sneeze, fart, or anything. It was like the computer was just waiting until I really thought the problem was gone to turn on the f'n lights.

So anyway, I think I have determined this problem has little to so with brake pad wear, MC fluid level, or cleanliness of the ABS sensors. This at least proves for sure that the dealer was wrong last year. What a shock. But hey, they don't make money by solving problems. They make money by replacing parts. The more they can replace in a day, the more money they can make. In my case, they didn't even have to replace parts to make money. Bullsh*t.

Obviously the sensors work (at least intermittently) because I did get the ABS to kick in and function properly that one time. I guess that I can say the only difference between now and summer (when the lights were not on), are the winter tires. I find it hard to believe that tire type could have such an effect on the ABS system. Oh, I forgot to mention it is about 35F outside and the roads are clean and dry. And now that those lights are on, the ABS does not function at all. I verified this by getting full lock up under braking on dry pavement. I suppose I could put the summer tires back on and see what happens.

duff
 
im not sure bout the abs thing cuase i dont have it i my car BUT the e-brake thing is common. its your brake senser going off when your pads start getting 70% to 30% your ebrake light comes on cuse when you hit your brakes hard it uses more brake fluid to fill the calipers so you brake fluid senser thinks that its low so the ebrake light fllashes. as your pads wear out more and more the ebrake light will become more common even on light braking conditions and at times never turning off. usually that means its time to change you pad.
 
Thanks for all of the discussion. My E-brake light has been going off intermittently when I hit the brakes (hard or soft) for about a week. I have 30K miles and the avg temperature outside is 35 degrees F. I will check my pads for wear. BTW, the tire thing is BS. I have new Michelin Pilot Alpins and they have been on for 2 months. I had worn factory tires on before that and never had a light come on.

367 (mp3yellow
 
Pmpkinhead - your fluid level is a little low. As the pads wear, the resting position of the piston is closer to the rotor. Consequently, the fluid level in the reservoir lowers. When you hit the brakes, the level drops below threshold and the light comes on. Keep in mind that if you add fluid now, the reservoir may overflow when compressing the piston to replace the pads.

As for the ABS light, it could very well be uneven tire wear. ABS systems have sensors on each wheel. On some vehicles, the ABS system also works with traction control. If the wheels are spinning at different rates, the ABS system notices a problem. Since it doesn't have a TC function to work with, it simply activates the trouble light. Most of us use directional tires. Because of this we don't use a cross pattern to rotate the tires. . . to much effort/cost to dismount tire from wheel. This causes uneven tire wear. One side becomes shorter than the other. The shorter tire rotates faster.

Usually the right side becomes shorter, because most right turns have a tighter radius than left --> more wear on right tire. Also, due to the lack of a locking differential, if one tire were to break loose, it's usually the right side. The right side will break loose because the weight of driver adds traction to the left. Now when turning right and accelerating hard, the right tire will break loose becuase not only the weight of the driver on the left, but the weight of the vehicle shifts to the left as well.
 
duff said:
Okay. Here's what I did.

1) Cleaned off all the ABS sensors (crud, brake dust etc).
2) Put the (new) Hawk HP+ pads on the front. (HP rears are still pretty new) The stock front pads really did need replacing this time. Found out that the tab on the outer HP+ pad pushes on the lower spring clip when the pedal is depressed, causing the clip to rub on the rotor and squeal. Solution, bend or remove the clip on the outer pad (stock pads didn't have them anyway). No squeeling now. Brakes bite really good.
3) Flushed the old brake fluid from the lines with the mighty-vac and then bled the brakes like normal.
4) Test drive.

I started the car, ABS & Brake lights did not come on. Good sign. I took it for a ride and did a number of stops to bed the pads. Started with few 50-30s and then did some X0-55s on the freeway. Off the freeway, I did some hard braking and got the ABS to kick in. Woohoo! The ABS worked great. And yes, I still have the LM22s on the car. I took another ride on the freeway and everything was fine....no ABS & Brake lights.

About 5 minutes after I got off the freeway, just crusing at 35-40mph, not even using the brakes, the ABS & Brake lights pop on. WTF!!! I didn't even hit a bump, sneeze, fart, or anything. It was like the computer was just waiting until I really thought the problem was gone to turn on the f'n lights.

So anyway, I think I have determined this problem has little to so with brake pad wear, MC fluid level, or cleanliness of the ABS sensors. This at least proves for sure that the dealer was wrong last year. What a shock. But hey, they don't make money by solving problems. They make money by replacing parts. The more they can replace in a day, the more money they can make. In my case, they didn't even have to replace parts to make money. Bullsh*t.

Obviously the sensors work (at least intermittently) because I did get the ABS to kick in and function properly that one time. I guess that I can say the only difference between now and summer (when the lights were not on), are the winter tires. I find it hard to believe that tire type could have such an effect on the ABS system. Oh, I forgot to mention it is about 35F outside and the roads are clean and dry. And now that those lights are on, the ABS does not function at all. I verified this by getting full lock up under braking on dry pavement. I suppose I could put the summer tires back on and see what happens.

duff


Not sure if I missed something here or not. Do you have rear drums on the car? If so, this mysterious abs light problem is pretty common. You said you checked and cleaned the abs sensors. Did you check the rear sensors?
 
2003 Protege5. Discs all the way around. Yes, it sounds like a common problem that does not have a common solution. Looking for some tech here.
 
overdrivex said:
im not sure bout the abs thing cuase i dont have it i my car BUT the e-brake thing is common. its your brake senser going off when your pads start getting 70% to 30% your ebrake light comes on cuse when you hit your brakes hard it uses more brake fluid to fill the calipers so you brake fluid senser thinks that its low so the ebrake light fllashes. as your pads wear out more and more the ebrake light will become more common even on light braking conditions and at times never turning off. usually that means its time to change you pad.

Nope. Not it. All the pads are new. Still get light. Fluid is not low. Flushed, filled, bled the brakes.
 
Pmpkinhead said:
Thanks for all of the discussion. My E-brake light has been going off intermittently when I hit the brakes (hard or soft) for about a week. I have 30K miles and the avg temperature outside is 35 degrees F. I will check my pads for wear. BTW, the tire thing is BS. I have new Michelin Pilot Alpins and they have been on for 2 months. I had worn factory tires on before that and never had a light come on.

367 (mp3yellow

Glad to hear you are interested. You mentioned your ebrake light comes on...but does your ABS light come on also? If not, sounds like a different issue.

duff
 
GNO said:
As for the ABS light, it could very well be uneven tire wear. ABS systems have sensors on each wheel. On some vehicles, the ABS system also works with traction control. If the wheels are spinning at different rates, the ABS system notices a problem. Since it doesn't have a TC function to work with, it simply activates the trouble light. Most of us use directional tires. Because of this we don't use a cross pattern to rotate the tires. . . to much effort/cost to dismount tire from wheel. This causes uneven tire wear. One side becomes shorter than the other. The shorter tire rotates faster.

Usually the right side becomes shorter, because most right turns have a tighter radius than left --> more wear on right tire. Also, due to the lack of a locking differential, if one tire were to break loose, it's usually the right side. The right side will break loose because the weight of driver adds traction to the left. Now when turning right and accelerating hard, the right tire will break loose becuase not only the weight of the driver on the left, but the weight of the vehicle shifts to the left as well.

They are snow tires, practically new. Tire wear would have to be extremely uneven in order to have a significant speed differential. Imagine how much the wheel diameter changes due to different tire pressures or cornering. I doesn't make sense to me that the system would be all that sensitive to this.

duff
 
I started my car the other morning and the ABS & Brake lights were on all the way to work. I started it to leave work, and the lights stayed off all the way home.

So what happened while the car was at rest (or during starting)? A code stuck in the memory? If that were the case, why does it sometimes forget it sometimes?

Well it will probably be a little while before I try anything else to fix this because I'm planning on going to sno*drift this weekend. But when if/when I do I'll be sure to share the info. Until then.... pee-south yo!
 
It is mis-reading a sensor. It is more common on the rear drums, I quickly read the lx in your profile and figured it was your protege.
If it is a 03 it will store the code in the unit. Have you had the codes read?
 
duff said:
Glad to hear you are interested. You mentioned your ebrake light comes on...but does your ABS light come on also? If not, sounds like a different issue.

duff

The only light that comes on at random is the same light that comes on when I pull the E-brake. My brake fluid level is about a 1/4 inch (6mm) above the MIN line on the MC. My pads are prolly getting worn also. My ABS worked fine today when I was playing on some ice.:)

367 (mp3yellow
 
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