ABS Code 1, air in system possibly?

my ABS comes on after 120 seconds and its throwing code 1, 5 second pause, 1 5 second pause, then 1 again and stops. So im guessing thats just code 1, no subcode. Well I recently replaced both front calipers and the lines were off overnight to the calipers, and i bled both front ones the best i could when i installed the new ones. ABS light wasnt coming on until this, so im assuming it possibly has something to do with air in the lines still? Im hoping so… any insight would be great. And dont I have to have a special tool to bleed the air off the ABS or something like that?

air in the lines doesn’t throw a code. check the abs ring and the sensor thingy, clean it up, and check wiring.

From what I read, air in the lines causes the system to not be able to build pressure, therefor the pump overrunning, therefor throwing the Code 1: Overrun pump code. I didnt know if this was true, or how exactly to fix it