P38A ABS and TC lights on

Hi All, I have just fitted new brake discs, new calipers, new brake pipes and new sensors. I have bleed the brakes the best I could. No air in any of the brake calipers. No fault codes but the ABS and TC lights stay on and I have a message saying traction fault. I have read some of the other answers on here but none seem to be the problem.

Which sensors did you replace? Is your battery healthy and fully charged?

All four wheel speed sensors. Battery is fully charged

Were they damaged? Could a new one be duff? Double check they are all pressed full home, no dirt or rust in the way etc

They are all brand new, and my lynks diagnostic says no faults. I will go and check they are fully home.

Tried diagnostics again and it came up this time with right front sensor fault. So I did as you suggested and went round them all and tapped them with a small rubber mallet.
As by magic all works fine now. Thanks.