jubie

Is it a car that has not been used very much ???

The clue of the ABS light is probably low voltage related, as by design, when the voltage is low the ABS is designed not to function - normal braking is still OK.

I am thinking if the car is not used much then battery charge is suspect.

Has the battery been charged or replaced ???????? as that could help.

The other related item is the over voltage protection relay which has a history of faults on some years - has anyone suggested replacing that.

Regards