Brakes released, ready for pushback.
Ding! A/Skid IB A/Skid OB Caution Message.
Parking Brake ON (Cautions extinguish)
Parking Brake OFF (Cautions re-illuminate)
Simply Release parking brake, feet off brakes, then reach up an flip the A/Skid TEST switch quickly one time. Viola!
Works Good. Lasts Long Time.