how to fix Ford Explorer Sixth Generation (2020-present) door ajar sensor issue

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

531 words

Problem Statement

Learn how to diagnose and fix the door ajar sensor issue in Ford Explorer Sixth Generation (2020-present). Step-by-step guide with symptoms and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shorts or shocks.

Symptoms

•Persistent 'door ajar' warning light on the dashboard
•Interior lights remaining on when doors are closed
•Keyless entry system malfunctioning
•Door locks not functioning correctly
•Possible chimes or alerts when driving

Diagnostic Steps

1
Inspect each door latch and check for physical obstructions or damage.
2
Use an OBD-II scanner to check for any related error codes.
3
Test the door ajar switch for continuity using a multimeter.
4
Examine the wiring harness connected to the door sensors for any signs of damage or corrosion.
5
Check the vehicle's body control module (BCM) for any faults affecting the door ajar 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

•Socket set
•Multimeter
•OBD-II scanner
•Screwdrivers

Parts Required

•Door ajar switch (if replacement is necessary)
•Electrical contact cleaner

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect each door latch and check for physical obstructions or damage.
2
Use an OBD-II scanner to check for any related error codes.
3
Test the door ajar switch for continuity using a multimeter.
4
Examine the wiring harness connected to the door sensors for any signs of damage or corrosion.
5
Check the vehicle's body control module (BCM) for any faults affecting the door ajar sensor system.

Solution

1. Preparation

Gather tools and ensure the vehicle is parked on a level surface.
Disconnect the battery by removing the negative terminal to prevent electrical shorts.
Tools Required: Socket set, multimeter, OBD-II scanner.

2. Inspect and Clean Door Latch

Open each door and inspect the door latch mechanism for debris or misalignment.
Clean the latch area with electrical contact cleaner to remove any dirt or grime.
Ensure the latch operates smoothly without sticking.

3. Test and Replace Door Ajar Switch

Remove the door panel to access the door ajar switch:
- Unscrew any screws securing the panel.
- Carefully detach the panel, starting from the bottom and working upwards.
Disconnect the wiring harness from the door ajar switch.
Use a multimeter to test for continuity when the switch is activated. If there is no continuity, replace the switch.
Install a new door ajar switch if necessary and reconnect the wiring harness.
Reattach the door panel securely.

4. Check Wiring and Connections

Inspect the wiring harness connected to the door sensors for frays or corrosion.
Repair or replace any damaged wiring as needed.
Ensure all connections are secure and free from corrosion.

5. Reconnect Battery and Test

Reconnect the negative battery terminal.
Test all doors to ensure the "door ajar" warning no longer activates when doors are closed.
Monitor other functions like interior lights and door locks for proper operation.