The same has happened on mine about 3 weeks ago. Took it to Williams Manchester and the put it on a diagnostic machine thingy. Basically what it does is it runs a series of tests and then has a few attempts to activate the pump. On the last test it started to work! Great, no big payout.....started up and set of for home, literally 200yrds round the corner the light came back on. Straight back in to Williams, told Andy, the mechanic and he suggested taking it out, riding it and locking the back wheel up....when they stop working it's generally because the ABS never gets used.....hopefully, depending on your riding style.....so hence the brushes stick in the pump.. Unfortunately mine did go completely so it was a new pump from Williams, fitted for just under £1300. 2 year warranty.....however, and here's the good part, if your bike has been well maintained and has all service history, Williams May be honest to make a good will gesture as they were with me. They replace the part for free and you pay the labour cost, min 1 1/2 hrs max 3 hrs. In the end it cost me £108 but that was when I realised I had a 3rd party warranty. You can but ask at your nearest dealer, they may help you out.....good luck
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