This article applies to the Harley Davidson Softail.
The Harley Davidson Softail is equipped with ABS, which makes the braking of the motorcycle much safer than the average bike. The ABS warning light is designed as a way for the motorcycle to tell you that something isn't quite right. The good news is that when the ABS light is on, it is usually directly related to the ABS, and not the braking system, which means in the worst case scenario you will drive without ABS but the brakes will work just fine. However, it is still recommended you don't ride the motorcycle when any of the warning lights are on, especially ones that are brake related. Read on to diagnose your ABS light.
Materials Needed
10mm socket
Wrench
Clear hose
Bottle
Brake fluid
Step 1 – Check for leaks
Your brakes could be leaking.
The first step in checking for leaks is to inspect the master cylinder. If the brake fluid level is low, you most likely have a leak. To get more specific, start checking the brake lines and their connections for any signs of wetness. Check the connection from the line to the brake caliper and from the line to the master cylinder. If there is a leak, you will have to replace the line or whatever is causing the leak. When you change the lines, you will need to bleed your brakes.
Figure 1. Check brake lines and connections.
If you've replaced the brake line, proceed to Step 2.
Step 2 – Bleed the brakes
You could have air in the system.
Having air in the brake system has been known to trigger the ABS warning light. The best way to find out, besides feeling a spongy brake pedal and lever, is to bleed the brakes. Use your clear hose and place it over the bleeder screw on the caliper, then connect the other end of it into a bottle. Pump the brakes a few times, then keep it compressed. Loosen the bleeder screw and watch for the fluid pouring out. As soon as you stop seeing bubbles, tighten the bleeder screw, then let go of the brakes. Top off the master cylinder with brake fluid.
Figure 2. Connect hose to bleeder screw.
Step 3 – Check ABS sensor wire
They could be worn or cracked.
The ABS sensor is located on the left side of the fork, between then fork and the rotor. It is very common for the wire to get cracked and wear, which can cause the warning light to go on and sometimes flash. Grab the wire with your fingers and run it up on the wires; if you feel any cracks in the wire, then you will have to replace it. They are sold to fit your specific size, so you just need to disconnect it and connect the new one.
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