Which Sensor

[Skipweasel]

Lately the ABS light has started coming on some time after driving away - it's happening more and more so clearly I need to do something about it.

 

Apart from getting the fault codes read (which I guess involves spending money - which as a part-Scot goes against the grain) is there any way of telling which sensor is causing the trouble?

 

Does anyone have a wiring diagram of the connections to the ABS module so I can pull the plug and waggle some wires with a meter attached?

 

Thanks

[Guest roypk]

Lately the ABS light has started coming on some time after driving away - it's happening more and more so clearly I need to do something about it.

 

Apart from getting the fault codes read (which I guess involves spending money - which as a part-Scot goes against the grain) is there any way of telling which sensor is causing the trouble?

 

Does anyone have a wiring diagram of the connections to the ABS module so I can pull the plug and waggle some wires with a meter attached?

 

Thanks

[Guest roypk]

Hi,

Follow the cable to connecters, in the sub frame at front, beside suspension link at rear. disconnect each sensor in turn

and check with a multimeter for a 1k resistance across the two contacts. the one with no reading is the failed one.

[Guest Colin Hunter]

It might possibly be the reluctor rings that are at fault. It's not unknown for the ones on a Xantia to rust, split and then rotate on the drive shaft, causing the ABS fault light to come on. You can't get new rings from Citroen as they want to sell you the whole shaft but there is a place that makes better than original replacements. See this website for details http://www.reluctorrings.com/

 

Cheers. Hope this helps. :(