ABS problems suck - had the same on my Astra. Ordered rear wheel speed sensor (Bosch) and checked module from
https://elartcom.eu/ Sensor was spot-on price-wise, arrived in 9 days. Plug matched, light went off after clearing codes. They list by ABS type and side which helps. Later ordered front ones too without hassle. Not the cheapest generics, but real Bosch/ATE level at sane prices. Good when local shops sell junk or charge premium for “original”. Check your part number first.
