206 1.4 hdi abs, battery lamp

I would like to get your opinion about a problem. There are similar issues, but there was no cure for trouble. According to the 206 1.4 hdi feeline head, yellow ABS sometimes lights the battery lamp. Sometimes individually, sometimes together, sometimes none. I checked the battery charge, it's normal. I tried the brakes in the empty field, the abs is working. I think the battery is normal, there is no problem in the starter, its operation and the headlights. I deleted the malfunction code, but it recurs over time.

Thanks for your help.

I am open to suggestions if anyone knows the skill to solve the job in Bursa.