ABSbBrake pedal position sensor failing? VR6 same as 16v?

[MZpog 10]

Seems that its the season for intermittent ABS lights on my valver.

 

I initially wondered if I'd disturbed a sensor when doing my coilovers, but having searched and read peoples symptoms I may be swaying towards the brake pedal sensor and wondered if they are the same on both valvers and VR's with the part number 357-927-810.

 

Any input on my symptoms would be appreciated:-

 

Along with the sometimes on/off ABS light at start up, it occasionally comes on/off with speed bumps. I also sometimes get a strange pedal with a vibration. When it does this the pedal isn't as hard, drops further and make the vibrating or grating noise. The car still stops but needs more effort, but I obviously want to sort this. Generally the light stays off but no doubt this will worsen if something is failing.

[Chuggs1 10]

Have you had a code read done?

[MZpog 10]

Have you had a code read done?

 

I borrowed a code reader and checked a couple of times previously but note found.

[g0ldf1ng3r 15]

IIRC you can test the brake pedal position sensor by holding down the brake pedal as you turn the ignition on

 

if it is working properly you should feel a short pulse in your foot through the pedal

[MZpog 10]

IIRC you can test the brake pedal position sensor by holding down the brake pedal as you turn the ignition on

 

if it is working properly you should feel a short pulse in your foot through the pedal

 

Will try this at lunch time.

[g0ldf1ng3r 15]

Will try this at lunch time.

 

fingers crossed for you fella

[MZpog 10]

IIRC you can test the brake pedal position sensor by holding down the brake pedal as you turn the ignition on

 

if it is working properly you should feel a short pulse in your foot through the pedal

 

Didn't feel a pulse on the my attempts. First 3 of so were the same - put my foot on the brake (hard pedal), turned ignition on, pedal goes soft and moves a bit until hard again, started car and ABS light on.

[g0ldf1ng3r 15]

Didn't feel a pulse on the my attempts. First 3 of so were the same - put my foot on the brake (hard pedal), turned ignition on, pedal goes soft and moves a bit until hard again, started car and ABS light on.

 

hmmm I am fairly sure it is quite a distinct pulse but I will go check now for you as im in the VR today (valver hasn't got ABS thank fook lol)

[g0ldf1ng3r 15]

hmmm I am fairly sure it is quite a distinct pulse but I will go check now for you as im in the VR today (valver hasn't got ABS thank fook lol)

 

blimey cold out there

 

ok so, in my VR, hold the break pedal down, put key in ignition, turn key to on (but don't start car) & as the key turns feel a clunk / doing under foot & is slightly audible

[GlosterOx 0]

Seems that its the season for intermittent ABS lights on my valver.

 

I initially wondered if I'd disturbed a sensor when doing my coilovers, but having searched and read peoples symptoms I may be swaying towards the brake pedal sensor and wondered if they are the same on both valvers and VR's with the part number 357-927-810.

 

Any input on my symptoms would be appreciated:-

 

Along with the sometimes on/off ABS light at start up, it occasionally comes on/off with speed bumps. I also sometimes get a strange pedal with a vibration. When it does this the pedal isn't as hard, drops further and make the vibrating or grating noise. The car still stops but needs more effort, but I obviously want to sort this. Generally the light stays off but no doubt this will worsen if something is failing.

 

This is from Vagcat, appears the same for all RHD cars: http://www.vagcat.com/epc/cat/vw/COR/1992/76/54/846188/

 

Ian.

[MZpog 10]

This is from Vagcat, appears the same for all RHD cars: http://www.vagcat.com/epc/cat/vw/COR/1992/76/54/846188/

 

Ian.

 

Thanks Ian, your link suggests I have to be logged in to see stuff but I guess it's saying they use the same part (if it turns out to be the position sensor)

[Dox 23]

The pedal sensor is also fitted to MK3 Golf gtis etc the early type with square side repeaters (M plate and older).

 

The ABS should scan, but some scanners can't connect with 20 year old technology.

 

Look on ebay for someone local to you who scans with VCDS for a tenner or so

 

http://www.ebay.co.uk/sch/i.html?_from=R40&_sacat=0&_nkw=vcds+scan&_sop=7

 

http://www.ebay.co.uk/sch/i.html?_odkw=vcds+scan&_sop=7&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.Xvagcom+scan.TRS0&_nkw=vagcom+scan&_sacat=0

[MZpog 10]

Whilst looking for a VW specific thread for instructions regarding the fixing of the brake pedal position sensor, I did find this one regarding a Volvo item that looks similar. http://www.volvoforums.org.uk/showthread.php?t=97192&page=5

Edited October 26, 2015 by MZpog

[Jim 2]

I know DG Autotech were able to repair these, so that guide on the Volvo forum looks pretty plausible. Has to be worth a go!

[MZpog 10]

So last night I scan again for ABS faults - no codes.

 

Also scanned for engine codes which valvers shouldn't be able to read and got a code 00527 that I've cleared before. Cleared it last night and this mornings drive has been free from ABS light. Hmmm.

[Chuggs1 10]

Well my scanner will scan the ABS and brings back the codes but when I try to clear the codes .... No can do.... Any ideas why

[MZpog 10]

Well my scanner will scan the ABS and brings back the codes but when I try to clear the codes .... No can do.... Any ideas why

 

None at all. The scanner I've borrowed lets me clear codes, just doesn't find any on the ABS system, which incidentally has behaved again.

[Chuggs1 10]

What scanner did you have I got a VS450 which although stated as OBD2 I was assured it worked on a Corrado VR6 - whilst it reads the ABS codes in wont read the engine and it wont clear codes - have a I bought wrong one or have I got a faulty one.

 

Thanks

[MZpog 10]

What scanner did you have I got a VS450 which although stated as OBD2 I was assured it worked on a Corrado VR6 - whilst it reads the ABS codes in wont read the engine and it wont clear codes - have a I bought wrong one or have I got a faulty one.

 

Thanks

 

Dunno. It's an orange Ebay special that I borrowed from Wayne, so no doubt they'll be a picture on here somewhere.

[Chuggs1 10]

Dunno. It's an orange Ebay special that I borrowed from Wayne, so no doubt they'll be a picture on here somewhere.

 

Is there a make and model number on it?

[MZpog 10]

Is there a make and model number on it?

 

it's one of these http://www.ebay.co.uk/itm/Universal-OBD2-CAN-Bus-Fault-Engine-Fault-Code-Diagnostic-Scanner-Reader-U480-/131638726293?hash=item1ea6478e95:g:hz4AAOSwBahVZFfZ

[Chuggs1 10]

Cool - now that's cheap - worth another punt and hope this one works - cheers

[AngusL 10]

Guys I have a 1995 VR6 and it talks nicely to the vag com via a USB PC lead and gave me the definitive error code that said bps sensor failure. The info is in here somewhere as I am sure I posted some pics of the innards of the brake position sensor that gave me the same grief with ABS lights and non functioning ABS. You can take out the BPS and fix it yourself if you can wield a soldering iron. It's basically a no cost fix there are a few solder joints that break inside the BPS and break and that's it game over ABS. There is a circlip that's fiddly to remove. Hint use a phone and video the underneath then look at the footage to see how the clip sits in a thin Channel holding the bps in place. A thin screwdriver in the right place gets it off. If this is your problem it's easier to fix than you think. Mines been working happily for just under a year now. Good luck

[Chuggs1 10]

it's one of these http://www.ebay.co.uk/itm/Universal-OBD2-CAN-Bus-Fault-Engine-Fault-Code-Diagnostic-Scanner-Reader-U480-/131638726293?hash=item1ea6478e95:g:hz4AAOSwBahVZFfZ

 

Did you say you could not read ABS codes with this or can you? - its these I need to read and clear - thanks

[MZpog 10]

Did you say you could not read ABS codes with this or can you? - its these I need to read and clear - thanks

 

Seems to read them on the valver but has never found any so I can't confirm. Wayne used it with success on his VR6 I believe.