Test procedure for Anti-Lock brake system (ABS/Anti-Lock) performance for on-highway commercial vehicles over 4536 kg (10 000 lb). This test procedure is intended to determine vehicle stability, maneuverability, stopping capability and system function on various road surface conditions including variable and uniform friction surfaces while brakes are modulated to obtain maximum performance with activation of ABS/Anti-Lock. This procedure does not cover radio frequency interference or power consumption testing. Reference SAE J46 Wheel-Slip Brake Control Road Test Code for passenger car and light truck test procedure.