cant reset the brake warning light

[musty1]

as the title says I had a dodgy speed sensor and chaged that then it come up with brake test activated and I done the test, after the test the ESP and ABS light went off put vagcom back on no fault codes and I still cleared it but the big red warning sign still does not go out I toped up brake fluid just in case still no joy can anyone help??

[PetrolDave]

Do the brake lights turn on when you press the pedal? Both bulbs blowing can cause the ABS failure to show.

Try checking the fault codes again - it's very unusual to have a warning and no codes.

[musty1]

both light's work there is amber warning signal for the bulbs this one is the big red warning signal yeah it is very unusual for no codes I'll have a look tonight maybe do a auto scan aswell see what it comes up with cheers

[tartan_rob]

Yep, VAG-COM would hopefully come up with something. Failing that check the wear sensor wiring with a Multimeter. I have blanked mine off in the RS4 as the sensors do not come with the aftermarket pads. From time to time I get a sensor fault on the dash (similiar symbol) and nothing comes up in VAG COM to tell me.

R

[musty1]

cheers rob will do

[musty1]

still no joy checked with vag com again no falut codes but the symbol comes up with three chimes all the conectors are conected

[flashyg]

Sounds like a voltage issue to the abs module or pressure valve in the system.
Have you checked the abs section in vag?
G

[musty1]

I'm sure it said 11v on vag com and the range is 9 to 17, pressure vale how do I check that?

[GrahamS4]

Brake pedal switch? Think it's a common VAG failure.

[musty1]

on vag com in the measuring blocks it says bleed in the brake switch bit but no fault codes also the rear lights wouldn't work no ? mine do

[PetrolDave]

Is the brake switch a dual circuit one? One for the ABS and one for the brake lights...

[musty1]

ok i will have a look into that the fault code did come up with switch but once i cleared it did not come back but my abs light is not on and the esp light is not on just the big warning on the dis

[Contigo]

I have this on mine and thought I could remove the coding but I see it's for MY99 motors and not a 2001. So I have to check the wires.

Checked them and they have been bodged up by someone already. Any ideas?

Thanks

Phil

[neckarsulm]

faults displayed on the DIS don't creates logs in the fault memory e.g. if you have low brake fluid (you dont), this wont cause a fault vag com can read.
Have a look in the manual and double check what it could mean, if it's just brake fluid you could have a problem with the brake fluid level sensor or its wiring or possibly even the cluster. Apparently BBA Reman say this isn't unusual.

What I have seen on many later cars (inc my RS4 when it was left unusued for 3 weeks) is low voltage on cranking the engine causing the DIS to display a fault relating to the brake system which clears after a few secs of the engine running - if yours stays on while driving etc it wont be this to blame.

Good luck.

[Contigo]

Nah it comes on immediatley and never goes off. When I had the pads done last week the tech said that someone had previously taped up the sensor wires so I reckon the fault likes somewhere else in the loom.

Gonna be a pig to solve as it could be either side of the fronts.