The ABS light should come on when the ignition is switched on and go off if all is fine. But as your's isn't coming on at all i would check the bulb or the wiring hasn't been disconnected. As for the rear sensor you can try taking it out, it's held on with 1 hex bolt, which ushally comes out, but the sensor might not want to part company with the rest of the car which will mean taking the rear calliper and disc off to get access to it. Which could turn out to be another arse as the carrier bolts for the calliper can be pain to take out. And as for the EVAP valve fault,i was told by Stealth tha