Power steering problem

[Liamcal]

Need help!!

So my power steering went and the light came on the dash so I’ve replaced the pump lights gone off and power steering kinda worked so I guessed the pump I bought was dodgy so I’ve bought a pump of a car I know 100% worked fine fitted it and I’ve no power steering at all. All fuses are okay I’ve checked all wiring is okay no codes are showing up through obd.
Anyone any advice I’m loosing my mind trying to figure this out

 

[R3k1355]

Battery or the alternator is bad.

It'll do funny things with the power steering when the voltage is not correct.

 

[Liamcal]

Battery or the alternator is bad.

It'll do funny things with the power steering when the voltage is not correct.

I’ve tried another battery still same so I’ll give alternator a go tomoz someone told me could be abs with wheel speed sensor not working so I’ve replaced them and still same