Checking ABS Warning Light Sequence

Turn ignition on with engine off. ABS warning light should come on for 3 seconds, then go out. If ABS warning light operates as specified, go to ROAD TEST VEHICLE  . If ABS warning light comes on and stays on, go to RETRIEVE ABS TROUBLE CODES  . If ABS warning light does not come on, go to ABS WARNING LIGHT DOES NOT LIGHT  .