ABS Light fault

[Channel Hopper]

If I start the ignition the three lights on the dashboard stay on as opposed to going out after three seconds. They only go out once the car is moving, approximately 30m in a straight line.

I've had this anomaly ever since I've owned the tourer


The MOT man will no longer pass the car until it acts normally according to his chart, so what might it be? I changed two sensors when I first got the car some five years ago along with the vsa box as it was seized, I am ***uming the pattern sensors might not be of the same resistance as official Honda ones but can anyone confirm if this might be the root cause ?

Thanks in advance

 

[mlkehunt]

are you able to measure your wheel speeds with a diag tool?
does it ever come and go as it pleases during driving?

 

[Channel Hopper]

Thanks and no, once the three lights come on (commonly after clipping a pothole, sometimes after a turn, wait at traffic lights etc.) they stay on until the ignition is turned off.

 

[Troy McClure]

I'd try cleaning the contacts in the ABS sensor plugs and brushing the muck out of the ABS rings on the hubs. They live in an area which gets a lot of dirt build-up.