how to fix the Ford Explorer Sixth Generation (2020-present) electronic parking brake not releasing

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

554 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 diagnose and fix the electronic parking brake issue in Ford Explorer (2020-present). Step-by-step guide with symptoms and solutions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is securely supported on a flat surface before working on it
•Disconnect the battery before handling electrical components to avoid short circuits

Symptoms

•Electronic parking brake warning light illuminated on the dashboard
•Unable to disengage parking brake using the switch
•Grinding noise when trying to move the vehicle
•Vehicle remains stationary despite pressing the accelerator
•Possible error messages related to the parking brake system on the display

Diagnostic Steps

1
Check the vehicle's battery voltage using a multimeter to ensure it's within the correct range (12.4-12.6 volts)
2
Scan the vehicle's onboard computer using an OBD-II scanner for any fault codes related to the parking brake system
3
Inspect the electronic parking brake switch for any visible damage or malfunction
4
Verify the wiring and connectors leading to the parking brake actuator for any signs of wear or disconnection
5
Test the electronic parking brake actuator to see if it responds to commands from the control module

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
•Trim removal tool
•Socket set
•Torque wrench

Parts Required

•Electronic parking brake switch (if faulty)
•Electronic parking brake actuator (if defective)

Related Faults

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Symptoms

•Electronic parking brake warning light illuminated on the dashboard

•Unable to disengage parking brake using the switch

•Grinding noise when trying to move the vehicle

•Vehicle remains stationary despite pressing the accelerator

•Possible error messages related to the parking brake system on the display

Diagnostic Steps

1
Check the vehicle's battery voltage using a multimeter to ensure it's within the correct range (12.4-12.6 volts)
2
Scan the vehicle's onboard computer using an OBD-II scanner for any fault codes related to the parking brake system
3
Inspect the electronic parking brake switch for any visible damage or malfunction
4
Verify the wiring and connectors leading to the parking brake actuator for any signs of wear or disconnection
5
Test the electronic parking brake actuator to see if it responds to commands from the control module

Solution

1. Preparation

Gather tools and parts required for the repair.
Disconnect the negative terminal of the battery to ensure safety while working with electrical components.

2. Inspect and Repair the Parking Brake Switch

Remove the center console cover using a trim removal tool.
Disconnect the parking brake switch connector.
Check for continuity using a multimeter. If faulty, replace the switch.
Reconnect the switch and reassemble the center console.

3. Check the Wiring and Connectors

Visually inspect all relevant wiring harnesses and connectors for damage, corrosion, or loose connections.
Repair or replace any damaged wiring or connectors as needed.

4. Test and Replace the Parking Brake Actuator (if necessary)

Locate the electronic parking brake actuator, which is typically mounted near the rear brakes.
Disconnect the actuator's electrical connector.
Test the actuator's operation by applying power directly to it (if applicable) to see if it engages and disengages properly.
If defective, remove the actuator (usually held by bolts) and replace it with a new one.
Torque the mounting bolts to the manufacturer’s specifications.

5. Reconnect Battery and Perform Calibration

Reconnect the negative terminal of the battery.
Use the vehicle's onboard diagnostics to perform a calibration of the electronic parking brake system, if required.
Follow the specific calibration procedure as outlined in the service manual.