Findings on nanocom when the lights came on were all sensors reading 2.35v except right hand rear which was zero volts. Dmm said 5 volts at all abs sensor plugs. All abs sensors gave a resistance reading of around 1000 ohms iirc (wrote it all down but lost the notes).
So I changed the right hand rear (rhd drivers rear) sensor, £25 island 4x4 one, no difference, nanocom still showed no voltage, lights still on. Next day, fiddling, a new fault popped up on the nano, front left sensor short, resistance reading was still OK so I ordered a cheap sensor off ebay £14 posted, just fitted that and the lights have gone out yay!
Nano shows no faults and , my query, voltage is now present on all 4 sensors?
Why would that be?
Wabco D 2001 diesel .