yes the light not illuminating is a failure, had this on mine in febuary, I found a garage that didnt notice im afraid
There is one relay in the boot (upper shelf behind that carpet thing, left side) Together with 60A fuse. At least it is on cars after '98. Then there are two more relays inside the ABS unit itself. If the unit is pre '98, they can be accessed, newer model, i couldn't access them. Still the best way to find out if the light isn't working or is working, simply unplug the ABS units cable (big, flat connector on top of the unit) and turn on the ignition key.
Technically an ABS diagnostics light not lighting up can be an MOT fail, it just depends how diligent the tester is and if they notice it. More often than not, they don't.
Cheers Charlie, We were told of the problem when she last came back from the garage that does most of the work on our cars. As they do our MOT's as well I didn't really want to take it else where just to get a ticket. Jason has looked after us too well over the years. Just a shame he's so dilligent!!
BOBDA, when you say "more often than not, they don't" does that imply this is a faily regular problem fot GTV owners?
AMV, cheers for the relay/fuse info. I had found them but had no detail on what they were connected too. Since my last post I have taken her to Alan Gibson is Basingstoke who put the ABS on their diagnostic system. While there were errors on both wheel sensors, once cleared they didn't come back so probably a result of all my poking about. They carried out a component activation test on the lamp itself and as far as the ABS system is concearned, it tells us the light came on. The reallity is, it didn't. So, speaking with our tame garage, Jason went to BOSCH who have provided a scematic for the system and today he will see if he can trace the feed from the ABS plug to the dash which as far as the two of us are aware has to be where the problem lays. I took the clocks apart and the LED there was fine so there can't be much else.
I'll put some more detail on here later once Jason has brought her back to update you on the latest