Problems again , abs inoperative

[bertb1]

Hi all
Hope you are all keeping well ,
This time last year I had problems with wheel/sensor and abs pump
Eventually got it sorted but today I went down a pot hole whilst braking and the abs kicked in a little time later a lost braking for a spilt second

Now all the same warning signs are back (same as last year)

Hoping it a sensor again but the losing braking really scared me especially with 2 kids in the car and this didn’t happen last year

Any thoughts?
Thanks


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[A.J.]

My first thought would be a wheel sensor but then I am not particularly mechanically minded