ABS issues caused by battery/alternator??

[JudgeM]

Hi all,

I sometimes get the ABS light come on my dash. I checked with diagnostic scanner and I get the following error codes:

C1241, C1249

As this is an intermittent issue that only occasionally shows up, could it be an issue with the battery or alternator ? I have already cleaned the contacts on the ABS ECU connectors.

I am reluctant to take the car to the dealer to have this checked. I had a battery health test done and I am told that my battery is OK but may need replacing soon as its now reading 275CCA and it is a 330CCA battery. I have no idea when the battery was last replaced, owned the car for 2.5 years now with the same battery, I suspect the battery is still the same from when it came from Japan which is about 3 years ago.