how to fix my Ford Mustang S650 (2024-Present) door ajar sensor issue

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the vehicle battery to ensure safety while working on electrical components.

2. Access the Door Latch

• Remove the door panel:
  • Use a trim removal tool to carefully pry off any clips holding the door panel.
  • Unscrew any visible screws securing the panel (typically near the handle and bottom).
  • Lift the panel upward to detach from the door.
• Locate the door latch mechanism.

3. Inspect and Replace the Door Ajar Sensor

• Identify the door ajar sensor, often integrated into the door latch assembly.
• Remove the door latch assembly:
  • Unscrew the latch from the door frame (note the number of screws and their locations).
  • Disconnect wiring harness from the latch assembly.
• Replace the faulty door ajar sensor (if separate) or the entire latch assembly if necessary.
• Reconnect the wiring harness to the new latch assembly.

4. Reassemble the Door

• Reinstall the door latch assembly, securing it with screws.
• Reattach the door panel:
  • Align the panel with the door and press down to secure clips.
  • Reinsert screws in their original positions.
• Reconnect the battery.

5. Test the Repair

• Open and close each door to ensure the door ajar warning light operates correctly.
• Confirm that interior lights turn off when the doors are closed and that the central locking system functions as expected.