how to test the abs wheel sensors for faults (citroen xantia vsx estate)?

You can test for electrical continuity through the sensor. You can do it from the abs ecu. For how to do it can I suggest that you have a look at www.frenchcarforum.co.uk and do a forum search with MJM as the author. I asked the same question on there about 2 weeks ago and received good advice.

MJM

M J May
September 2009

no self test you need diagnostic equipment to ckeck this fault

ih
July 2009