Gavinhousley1961
New member
Hello guys I'm back again regarding psm/abs light comes straight on after starting car (2001 gen 2 Carrera 4) and stays on..code 4025. Wire check all good. New speed sensor. New Maf sensor abs module all tested and works as it should but can't get a reading from front near side wheel all the other 3 are fine. The only thing I haven't changed is the brake light switch but that seems to work fine and I'm sure it would throw a different code I have also replaced the wire harness to the speed sensor and brake wear sensor I know this may sound stupid but is it possible that I could be anything to do with the brake lights at the rear I say this because I only removed them and cleaned behind and put them back. All the lights work as they should. Any help would be appreciated as this is driving me mad an auto electrician has checked the wiring and said all good but I'm not sure.