Xantia fault codes

stephen burch · Post by **stephen burch** » 01 Jul 2005, 00:00

Is anyone aware of any circuitry that may keep the ABS dashboard warning light on once a sensor has been replaced? I have a Xantia activa that was diagnosed was nearside rear ABS sensor intermittent. It has been replaced and the light has stayed on. Any help appreciated.
Thanks.

Richard Gallagher · Post by **Richard Gallagher** » 01 Jul 2005, 00:25

It may well be the case that the fault needs to be 'cleared' from the ecu memory to cancel the light ilumination.

wheeler · Post by **wheeler** » 01 Jul 2005, 00:39

just because it comes up with a fault with the n/s/r sensor doesent mean the sensor itself is at fault,it could still be the wiring,the pickup ring or even the ECU.more that likely the fault just needs erased though.

Stempy · Post by **Stempy** » 01 Jul 2005, 02:41

When I had a duff sensor the light went off as soon as I replaced it. I think the ecu does a check each time the ignition is switched on and the light shows if a fault is detected. It would be worth pulling the plug on the ABS ECU and checking each sensor and its wiring from there first.
You can use a 1k resistor to substitute the sensors which will fool the ECU at standstill, but the light will come on if you drive away as there will be no pulses detected.