ABS Fault... Relays? some guidence please?

[vwdeviant 0]

Been having ABS issues on my 92 9a, Valver... so had it Vag-com'd .. cleared down a load of fault codes and than took it for a run.. got the following:

 

1 Fault Found:

 

01276 - ABS Hydraulic Pump (V64)

16-00 - Signal Outside Specifications

 

 

Looking at Google seems to run the whole range from fuses to pumps to control units!

 

So what should I be looking at?

Which Relays? (cheapest fix)

Wiring, (hate wiring)

Control unit, (ouch)

or replacing the whole pump? (walet screems)

 

:shrug: :scratch:

[mattnorgrove 0]

I'd start with getting the sensors outta the hubs and giving them a good clean, be prepared to struggle to get them out, but that'll hopefully clear the signal fault.

 

The hydraulic pump issue is anyones guess I suppose, but I agree, it doesn't sound promising... :gag:

[millerman 0]

new pump !!!!! :( vagcom would tell you if the sensors were at fault 2nd hand abs pumps can be had for around £20-30 on ebay

so not really a major worry

[vwdeviant 0]

Sensors and cages are all ok... replaced rear cages and cleaned up all sensors a while ago...

 

Anyone know which relays to replace on a 9a??

[vwdeviant 0]

Anyone? :shrug:

[vwdeviant 0]

Does no one know which are the ABS relays on a 9a?? :(

 

May save me £60+ on another ECU... and then a pump if that doesn't work...

[Supercharged 2]

Relays behind the glove box....

 

How old is the fluid?

 

Have you checked the ABS ECU for water damage ? - I'd do this before anything else...

[vwdeviant 0]

Relays behind the glove box....

 

How old is the fluid?

 

Have you checked the ABS ECU for water damage ? - I'd do this before anything else...

 

Fluid ws changed in April (new discs/pads) and ecu was checked at the same time.. got no white/green fuzz on the connectors...

 

 

Taken me this long to get it VAG-Com'd

 

Would really like this sorted ASAP as the missus is due in 6 weeks and want it done before then as she'll be using the car after JR's born (only car)

[Supercharged 2]

Might be worth borrowing an ECU just to rule it out...

 

Could also be something like a bad battery or alternator / regulator

 

Also maybe worth cleaning / re-seating all the plugs and connections to the ABS pump / Valve block.

[vwdeviant 0]

Eveything cleaned and re-seated, alternator and battery's puting out plenty of juice (13.6 from memory).

 

So next port of call is the ABS relays... anyone know where they are in a 9a? Assuming the one's in the bay itself?? :shrug:

[Supercharged 2]

As above mate - they are behind the glovebox

[vwdeviant 0]

As above mate - they are behind the glovebox

 

 

Cheers Steve, any idea which ones?