how to troubleshoot Ford Explorer Sixth Generation (2020-present) ABS light coming on

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-3 hours

Time

medium

Difficulty

high

Severity

4 min read

624 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to troubleshoot the ABS light on a 2020-present Ford Explorer. Step-by-step guide with diagnostic steps and repair instructions.

Affected Component

Brakes

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Ensure the vehicle is securely elevated when inspecting the wheels.

Symptoms

•ABS warning light illuminated on the dashboard
•Increased stopping distance during braking
•Brake pedal feels soft or spongy
•Unusual noise (such as grinding) when braking
•Traction control light may also be illuminated
•Vehicle stability control might be compromised

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific ABS fault codes.
2
Inspect the ABS fuses in the fuse box for any blown fuses.
3
Check the brake fluid level and condition in the master cylinder reservoir.
4
Examine ABS wheel speed sensors for damage, dirt, or disconnection.
5
Inspect the wiring harness connected to the ABS control module for corrosion or broken connections.
6
Test the ABS control module for proper operation using a multimeter.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Multimeter
•Socket set
•Torque wrench
•Basic hand tools

Parts Required

•ABS fuses (if blown)
•Brake fluid (DOT 3 or DOT 4)
•Wheel speed sensors (if faulty)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific ABS fault codes.
2
Inspect the ABS fuses in the fuse box for any blown fuses.
3
Check the brake fluid level and condition in the master cylinder reservoir.
4
Examine ABS wheel speed sensors for damage, dirt, or disconnection.
5
Inspect the wiring harness connected to the ABS control module for corrosion or broken connections.
6
Test the ABS control module for proper operation using a multimeter.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, socket set, torque wrench, and basic hand tools.
Ensure the vehicle is parked on a flat surface and the ignition is off.
Disconnect the battery to prevent any electrical shorts.

2. Inspect ABS Fuses

Locate the fuse box (usually under the dashboard or in the engine compartment).
Remove the cover and check the ABS fuse for continuity using a multimeter.
Replace any blown fuses with the same amperage rating.

3. Check Brake Fluid Level

Open the hood and locate the master cylinder reservoir.
Inspect the brake fluid level; it should be between the "MIN" and "MAX" marks.
If low, top off with the appropriate brake fluid (DOT 3 or DOT 4 as specified in the owner’s manual).
Recheck the ABS light after topping off.

4. Inspect Wheel Speed Sensors

Elevate the vehicle and remove the front wheels.
Locate the ABS wheel speed sensors on each wheel hub.
Clean any debris from the sensors and connectors.
Use a multimeter to check the resistance of the sensors, ensuring they are within manufacturer specifications.

5. Check Wiring and Connections

Inspect the wiring harness connected to the ABS control module and wheel speed sensors.
Look for signs of wear, corrosion, or breaks in the wiring.
Repair or replace any damaged wiring as necessary.

6. Test ABS Control Module

Reconnect the battery and use an OBD-II scanner to clear any stored fault codes.
Perform a test drive to see if the ABS light reappears.
If the light returns, use the multimeter to check for power and ground to the ABS control module.
If the module is faulty, it will need to be replaced and reprogrammed.