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

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

520 words

Problem Statement

Learn how to diagnose and fix the door ajar sensor issue in Ford Explorer (2020-present). Step-by-step guide with symptoms, diagnostics, and repair instructions.

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 avoid shock or short circuits.
•Allow the vehicle to sit for a few minutes before starting work to ensure components are cool.

Symptoms

•Continuous 'door ajar' warning light on the dashboard
•Chime sound when driving despite all doors being closed
•Inability to lock doors remotely
•Interior lights remain on when doors are closed
•Possible drain on the vehicle battery

Diagnostic Steps

1
Inspect each door switch for physical damage or corrosion.
2
Use an OBD-II scanner to check for any related error codes.
3
Test the door ajar switch operation with a multimeter.
4
Visually check door hinges and latches for proper alignment.
5
Examine wiring harnesses for any signs of wear or damage.

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
•Screwdrivers (flathead and Phillips)
•Wire connectors (if needed)

Parts Required

•Door ajar switch (if replacement is necessary)
•Electrical wire connectors (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Solution

1. Preparation

Gather tools and parts needed for the repair.
Disconnect the vehicle battery to prevent electrical shorts.

Tools Required:

OBD-II scanner
Multimeter
Socket set
Screwdrivers (flathead and Phillips)
Wire connectors (if needed)

2. Inspect and Replace Door Switch

Locate the door ajar switch in each door. Typically, it is found near the door latch mechanism.
Remove the door panel if necessary, using a socket set and screwdriver to access the switch.
Disconnect the wiring harness from the switch.
Use a multimeter to test the switch for continuity. If it does not function correctly, replace it.
Install the new switch by reversing the removal process.
Reconnect the wiring harness and test the switch operation.

3. Check and Repair Wiring

With the door panels removed, inspect the wiring for damage or fraying.
Repair any damaged wires with electrical tape or replace them with new wire connectors.
Ensure all connections are secure and insulated.

4. Reassemble Door Panels

Once all switches and wiring are inspected or replaced, reattach the door panels.
Ensure all clips and screws are secured properly.

5. Reconnect Battery and Test

Reconnect the vehicle battery.
Test each door to ensure the door ajar warning light functions correctly and that the interior lights turn off when the doors are closed.