You can read the codes, but not with a cheap code reader, it needs to be a decent generic one (Snap on for example) or Peugeot Planet.
Planet can tell you the exact fault, even down to a broken wire sometimes. Chances are it's a faulty sensor, or cracked ring around the driveshaft. The ABS units themselves don't often fail on 306s.
Planet can tell you the exact fault, even down to a broken wire sometimes. Chances are it's a faulty sensor, or cracked ring around the driveshaft. The ABS units themselves don't often fail on 306s.