Final answer:
To see if a converter dolly has ABS, look for a yellow ABS malfunction lamp on the left side, check for an ECU and wheel speed sensor wires, or find an ABS sticker.
Step-by-step explanation:
To determine if a converter dolly is equipped with anti-lock brakes (ABS), one can look for a few key indicators. First, check for the presence of a yellow ABS malfunction lamp on the left side, either on the dolly itself or on the left side of the dolly's air tank. If the converter dolly is older, it may not have the lamp, but can still have ABS. In this case, you can look for the ECU (Electronic Control Unit) and wheel speed sensor wires that lead to each wheel. These are fundamental components of an anti-lock brake system. Also, the presence of a specific ABS sticker or marking on the dolly can indicate the presence of the system.