how to fix faulty parking sensors in Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

484 words

Problem Statement

Learn how to diagnose and fix faulty parking sensors in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with tools and safety tips.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Ensure the vehicle is securely supported if elevated during repairs.

Symptoms

•Parking sensor warning light illuminated on the dashboard
•Continuous beeping sound when in reverse
•No audible alerts when approaching objects
•Inconsistent sensor response (e.g., sensors not activating)
•Visual display showing incorrect distance readings

Diagnostic Steps

1
Scan the vehicle using an OBD-II scanner to check for any related error codes.
2
Inspect the parking sensor wiring harness for damage or corrosion.
3
Test each individual parking sensor using a multimeter to check for proper voltage and resistance.
4
Clean the parking sensor lenses to remove any dirt or debris that may obstruct their function.
5
Check the vehicle's fuse box for any blown fuses related to the parking sensor system.

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
•Socket set
•Multimeter
•Screwdriver set

Parts Required

•Replacement parking sensors (as needed)
•Any necessary wiring connectors or fuses

Related Faults

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Diagnostic Steps

1
Scan the vehicle using an OBD-II scanner to check for any related error codes.
2
Inspect the parking sensor wiring harness for damage or corrosion.
3
Test each individual parking sensor using a multimeter to check for proper voltage and resistance.
4
Clean the parking sensor lenses to remove any dirt or debris that may obstruct their function.
5
Check the vehicle's fuse box for any blown fuses related to the parking sensor system.

Solution

1. Preparation

Gather all necessary tools and parts.
Park the vehicle on a flat surface and engage the parking brake.
Disconnect the battery to prevent electrical shock.

2. Access Parking Sensors

Remove the rear bumper cover:
- Use a socket set to remove bolts securing the bumper.
- Gently pull the bumper away from the vehicle, taking care not to damage clips.

3. Inspect and Replace Sensors

Locate the parking sensors on the rear bumper.
Disconnect the wiring harness from each faulty sensor.
Remove the defective sensor by twisting it counterclockwise and pulling it out.
Install the new parking sensor:
- Align it with the mounting hole and twist clockwise until secured.
- Reconnect the wiring harness.

4. Reassemble the Bumper

Reinstall the bumper cover:
- Align it with mounting points and press it into place.
- Reattach all bolts and clips securely.

5. Reconnect Battery and Test

Reconnect the vehicle's battery.
Start the vehicle and shift into reverse to test the functionality of the parking sensors.