Question What color are ABS malfunction lamps? Answers Orange Yellow Green Blue Explanation Vehicles with Anti-Lock Braking Systems (ABS) have yellow malfunction lamps. This questions appears in the following tests: Alabama Air Brakes Arkansas Class B Knowledge Test Arkansas Air Brakes Colorado Class A Knowledge Test Colorado Air Brakes Connecticut Air Brakes Delaware Air Brakes District Of Columbia Air Brakes Georgia Air Brakes Indiana Class A Knowledge Test Kansas Air Brakes Minnesota Air Brakes Mississippi Air Brakes Montana Air Brakes Montana Air Brakes New Jersey Class A Knowledge Test New Jersey Air Brakes New York Class B Knowledge Test New York Air Brakes New York Air Brakes North Dakota Air Brakes South Carolina Double Texas Air Brakes Utah Class B Knowledge Test Utah Air Brakes Wisconsin Class A Knowledge Test