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2000 volkswagen golf abs light



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I am new to forum, so thanks to all. Have a 1999 Passat 1.8 w turbo and about 140K miles. Runs good, ABS light is contstantly illuminated and the brake light is flashing red. Checked all brakes and pleantly of pad left, everything in the braking system seems to be working fine. Any suggestions. Thanks

Its your ABS control module. You have full brake function, just not ABS. There is a company that rebuilds them for significantly less than new. Do a search on "ABS Module". You'll find a very LONG thread with all the relevant information.

Thanks. Does that also address the red flashing brake light?

I can't recall. Our 99's don't have brake wear sensors, so if your brake light is flashing, it may mean that something else is wrong. How do the brakes feel?

Breaks are very good. close to 80% pads left on all 4. So the 1999 does not have the brake sensor? The brake light flashed about once every 3 seconds. When I apply the e brake, the light just stays lite.

ok. But the ABS llight is on and beeps at you occasionally, correct? If so, regardless of whatever else is going on, you ABS control module is kaput. A 99 with 140K is just about the right time.

my 99 has the pad sensors, but it didnt give any warning or error when i replaced pads w/ no sensors.
Im new to passats, but in my other fairly extensive car experience, abs warning lights are just the abs system, but red brake warnings are the actual brake system malfunctioning. if everything looks good, it usually means some componentis traveling out of spec distances. for example the caliper pins are loosse and the caliper is extending too far or something like that. Ive heard the e-brakes on these cars are a little funky, maybe something there. first thing i would be doing would be making sure all caliper and bracket bolts are tight and not sticking. but i will certainly defer to the more knowledgeable on this forum for the idiosyncrocies of these cars.

my 99 has the pad sensors, but it didnt give any warning or error when i replaced pads w/ no sensors.
Im new to passats, but in my other fairly extensive car experience, abs warning lights are just the abs system, but red brake warnings are the actual brake system malfunctioning. if everything looks good, it usually means some componentis traveling out of spec distances. for example the caliper pins are loosse and the caliper is extending too far or something like that. Ive heard the e-brakes on these cars are a little funky, maybe something there. first thing i would be doing would be making sure all caliper and bracket bolts are tight and not sticking. but i will certainly defer to the more knowledgeable on this forum for the idiosyncrocies of these cars.

Is your car a late '99? Mine doesn't have that feature but it's a '98 production year; '99 model year car.

not sure, ill have to check the build date again. but it has the headlight wiring that i think it identifies it as an early 99. meaning that just dropping in a euro swich doesn give fogs only capability, have to jumper the drl relay contacts too.
according to a write up posted here, late 99 switched the headlight wiring.

Yes, the flashing brake light is 100% associated with the broken ABS module. Once it's rebuit, both lights will go out and never come on again.

Ok, good to know. but if it was the red light w/ out the abs light, that would be a real brake problem, right?

It would be a sensor problem or something like that, I don't think it would be a regular brake problem.

Dumb thing that worked for me: Check your brake fluid level.

Mine ('02 AWM 5M) exhibited all the symptoms of the dreaded ABS failure, but turned out to be that the pads were worn enough that the master cyl had to travel far enough to reduce the overall level of fluid and was triggering alarms.

To all, this is old thread but I have the same issue. Everybody says that replace the ABS module to fix the problem. Well, I replaced it with well known serviceable ABS module but didn't fix the issue. I appreciate for all input (other option). Thank you.
Problems:
1. 1999 Passat GLS V6
2. Tachometer (RPM) will not working
3. Brake light blinking after releasing the parking brake
4. Heard the beeping sound. It beep (x3) when just start the car then goes away
5. Oil pressure light illuminate
6. No issues with the brake, oil pressure and RPM

Disconnected the ABS module connector:
1. RPM works
2. Oil pressure light distinguish
3. Still brake light blinks after released the parking brake
4. Heard the beeping sound. It beep (x3) when just start the car then goes away

You should have started a new thread. Anyway, try getting the car scanned for codes. It will help narrow the issue down.

Original Club B5 member: 16 Golf 4. Missing my 99 B5 & 08 R32

The inexperienced on this forum keep saying rebuild the module, just because it's a common fault.

The inexperienced on this forum keep saying rebuild the module, just because it's a common fault.

And the experienced members will tell you the same thing. If the ABS light is on and the brake light is flashing, the ABS module is most likely the problem. I've gone through three B5 Passats and they all had a bad ABS unit with the same symptoms so the response is based on actual experience for a lot of us. Using a VAGCOM to scan the codes is the smart way to go, but not everyone has one so you have to try and fix it with what you have to work with. I think just about everyone that has a B5 Passat ends up with a bad ABS module at some point so even if it's not the culprit it's just a matter of time before it does fail.

Alika808's problem is something entirely different and the topic should have been broken out to a different thread. His symptoms do not indicate a bad ABS module.

And the experienced members will tell you the same thing. If the ABS light is on and the brake light is flashing, the ABS module is most likely the problem. I've gone through three B5 Passats and they all had a bad ABS unit with the same symptoms so the response is based on actual experience for a lot of us. Using a VAGCOM to scan the codes is the smart way to go, but not everyone has one so you have to try and fix it with what you have to work with. I think just about everyone that has a B5 Passat ends up with a bad ABS module at some point so even if it's not the culprit it's just a matter of time before it does fail.

Alika808's problem is something entirely different and the topic should have been broken out to a different thread. His symptoms do not indicate a bad ABS module.


There was no reason for you to challenge what I posted, but since you have.

Some of Alika808's symptoms do indicate a bad ABS Module a scan could help diagnose that. I wouldn't recommend replacing it without a scan.
But he does have a problem other than the ABS. The flashing brake light is likely caused by pad wear sensors, possibly by brake light switch or fluid level sensor.
I don't understand why anyone tries to diagnose a Passat without a scanner; when, if you have a PC of some sort running windows, you can get a very good scanner for under $10.

You can test the pad wear sensors by disconnecting them and connecting a bridge across the wires that go into the car. (Check all pads for wear)

There was no reason for you to challenge what I posted, but since you have.

Some of Alika808's symptoms do indicate a bad ABS Module a scan could help diagnose that. I wouldn't recommend replacing it without a scan.
But he does have a problem other than the ABS. The flashing brake light is likely caused by pad wear sensors, possibly by brake light switch or fluid level sensor.
I don't understand why anyone tries to diagnose a Passat without a scanner; when, if you have a PC of some sort running windows, you can get a very good scanner for under $10.

You can test the pad wear sensors by disconnecting them and connecting a bridge across the wires that go into the car. (Check all pads for wear)

Sorry, but it wasn't meant to be a challenge as I do appreciate the feedback provided by the more experienced mechanics here. Like most of us, I'm just a weekend mechanic that tries to do as much maintenance as my skillset allows. My point was that the symptoms reported by the OP have almost always pointed to a faulty ABS unit. I've personally had these symptoms on several B5 Passats and came here to find out what it was all about. The result being that the experienced folks pointed me to a bad ABS unit. I did not have a VAG COM or other code reader for diagnosing the problem at the time, although I believe I did take it to Induktion Motorsports and they checked it with a VAG COM and were unable to communicate with the ABS unit. Getting the ABS unit rebuilt fixed the problem on all three Passats.