xantia 1.9td abs light

ollgit54 · Unread post by **ollgit54** » 28 Nov 2004, 17:43

I've heard you can test the wheel sensors at the plug to abs ecu, anyone got any info?

dieseldes · Unread post by **dieseldes** » 28 Nov 2004, 19:47

quick check!
ign. off disconnect ECU multiplug
resistance all 1000ohms
Front LH Pins 1 & 2
Front RH pins 19 & 20
Rear LH pins 5 & 6
Rear RH pins 22 & 23 Some models 21 & 23
Voltage AC 0.1V AC minimum while turning wheel
Front LH Pins 1 & 2
Front RH pins 19 & 20
Rear LH pins 5 & 6
Rear RH pins 22 & 23 Some models 21 & 23
if you have an oscillascope you can check for an AC waveform across the terminals
while turning wheel
This is a very simple check and unfortunately does not cover all faults!!
Des

AndersDK · Unread post by **AndersDK** » 29 Nov 2004, 01:06

- or make yourself a simple adapter and connect the signal to any portable radio/tape recorder with a line input. Gives a humming in the speaker according to wheel speed - indicating a working sensor & cable.