The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

2017 Fusion SE - ABS & Traction Control Lights On

0

Mike T. · rep 0 · May 25, 1:34 AM · 1 replies · solved · Question

Vehicle: 2017 Ford Fusion SE

Hello everyone,

I'm looking for some help with my 2017 Ford Fusion SE. Both the ABS and Traction Control warning lights recently illuminated on my dashboard and have stayed on. I haven't noticed any immediate changes in braking performance, but I know these systems are important for safety.

I'm wondering if this is a common issue for the Fusion and what might be causing it. Could it be a simple sensor, or something more serious with the braking system itself? I'd appreciate any insights before I head to a mechanic.

Thanks in advance!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 1:34 AM

0

ClearTheCode admin answer:

When both the ABS and Traction Control lights illuminate on your 2017 Ford Fusion SE, it typically indicates a fault within the Anti-lock Braking System (ABS) that also affects the Traction Control System, as they are interconnected. While you might not feel an immediate difference, these systems are crucial for vehicle stability and emergency braking.

Common Causes:

  1. Wheel Speed Sensor Failure: This is the most frequent cause. Each wheel has a sensor that monitors its rotational speed. If a sensor fails (due to dirt, damage, or electrical malfunction), the ABS module loses critical data, triggering the lights.
  2. Damaged Wiring: The wiring harness leading to a wheel speed sensor can become frayed or damaged, especially in areas exposed to road debris.
  3. ABS Module Malfunction: Less common, but the ABS control module itself can fail, leading to system errors.
  4. Low Brake Fluid: While usually indicated by a separate brake warning light, extremely low fluid can sometimes trigger related system warnings.

Troubleshooting Steps:

  1. Visual Inspection: Check around each wheel for any obvious damage to the wheel speed sensors or their wiring. Look for dirt or debris on the sensor itself.
  2. Check Brake Fluid: Ensure your brake fluid reservoir is at the proper level.
  3. Scan for Codes: You'll need an OBD-II scanner capable of reading ABS-specific codes. Generic scanners often only read engine codes. Common ABS codes include C0031 (Left Front Wheel Speed Sensor), C0034 (Right Front Wheel Speed Sensor), C0037 (Left Rear Wheel Speed Sensor), or C0040 (Right Rear Wheel Speed Sensor).

When to See a Shop:

Since the ABS and Traction Control systems are vital safety features, it's recommended to have your Fusion inspected by a professional mechanic as soon as possible. They can accurately diagnose the specific fault using advanced diagnostic tools that can communicate with the ABS module. Ignoring these warning lights can compromise your vehicle's safety features, especially in adverse driving conditions.

Menu

Help & account