ABS ECU can't be reset with LEXIA....

[lankytim]

Hi all,

I met up with King P today and he plugged his Lexia into my XM to try and extinguish the ABS light. While the LEXIA seemed to connect with the ABS ECU ok the ECU seems to be frozen. All faults have been cleared with none reappearing but the light stays on (no blinking on startup) and the LEXIA shows wheel speeds are stuck on 65kph/56kph on the front, and 0 on the rears.

Any idea what's going on?

[addo]

That sounds like an internal ABS unit fault to me - presuming you tested with the engine off.

[CitroJim]

Tim, which XM?

[lankytim]

It's a 1996 P 2.5 exclusive, teves system.

[CitroJim]

Tim, I've seen similar with duff sensors so don't discount them totally. But before that, check the sensor connectors as they can get dirty and also the ECU connector which on an XM is in a very exposed place...