The converter dolly with anti lock brakes are required to have yellow light on the left side.
Step-by-step explanation:
Converter dollies based on or after March 1, 1998 are required to have Anti-Lock Braking Systems (ABS). The nearness of ABS will be shown by a yellow light on the left half of the dolly.
Converter dolly, outfitted with somewhere in the range of one and three axles and intended to interface with a tow bar on the back of the truck or trailer in front. An A-dolly has a solitary draw bar with a focused coupling.