ABS Light On just before MOT

[jcook6788]

Address 03     -------------------------------------------------------
   Controller: 1J0 907 379  H
   Component: ABS/EDS 20 IE CAN  0001
   Coding: 13504
   Shop #: WSC 00028
1 Fault Found:
01276 - ABS Hydraulic Pump (V64)
            16-00 - Signal Outside Specifications


The ABS light has been intermittent for 6years.. usually never on again after restart and possibly comes on when I used the brakes firmly.

... until recently the light came on and stayed on for a week. then went. Now its back and has been on for 2weeks from engine start!

I have my MOT in 2 weeks and obviously need to get this fixed.

side note: may be unrelated but before ABS light became more permanent I was suffering from a slight vibration when lightly breaking. I thought warped discs? 

Fix attemps so far:

    Replaced and cleaned contacts of x3 30amp green fuses on battery fuse box
    scrubbed and cleaned all other fuses in tray
    Removed and visually checked wiring loom to ABS control module
    Bought a different fuse box to replace
    bought a second hand ABS pump and module to replace



Ive had other electrical problems before and I can see past melting on fuse box so good to replace anyway.

Im going to be at work all week and realy with one last day to attempt to fix myself before MOT hence the purchase of the ABS unit. How hard is it to change?

Have read the posts on cracking opent the lid of the ABS module and re soldering points...


So the light is on constantly still when ignition is on and everytime I click clear codes on VAGCOM it just reappears (not sure if thats normal, but guess its just sensing the same issue)


Any help or info that I may have missed would be very much appreciated

Thanks
James

[Jasikasisback]

scan with a code reader...it will tell you what sensor(s) are faulty...go to wheel(s) and work your way back...there is some defeater from bulgaria? you can get and wire it up (saw some post on here somewhere)  but for safety reasons u should get it fixed

[jcook6788]

thats the only code that comes up no sensor issues.

UPDATE:

Started car this morning and after 3weeks the light has TURNED OFF!!

I have now also another symptom to add. Previously when i breaked normally the car shuddered abit. I thought perhaps a warped disc. This has completely stopped so seems linked to the abs problem.

Any ideas?