how to troubleshoot my Ford Mustang S650 (2024-Present) power locks not working

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle battery to prevent electrical shock.
• Make sure the work area is clean and well-lit.

2. Inspect and Replace Fuses

• Locate the fuse box (usually under the dashboard or in the engine compartment).
• Identify the fuse related to the power locks (refer to the owner's manual for the exact location).
• Remove the fuse using a fuse puller and inspect it visually for a break.
• If blown, replace it with a new fuse of the same amperage.

3. Test and Replace Door Lock Switches

• Remove the door panel using a trim removal tool or socket set, being cautious not to damage clips.
• Disconnect the wiring harness from the power lock switch.
• Use a multimeter to test for continuity in the switch.
• If faulty, replace the switch with an OEM part.

4. Inspect Wiring and Connectors

• Visually inspect the wiring harnesses leading to the door lock actuators.
• Look for frayed wires, corrosion, or loose connections.
• Repair any damaged wires or connectors as necessary.

5. Test and Replace Door Lock Actuator

• Disconnect the actuator from the door latch.
• Use a multimeter to check for voltage at the actuator connector when the lock switch is activated.
• If there is voltage but the actuator does not function, replace the actuator.
• Install the new actuator by reversing the disassembly steps.

6. Reassembly

• Reconnect all wiring harnesses and ensure the door panel is secured back in place.
• Reconnect the vehicle battery.
• Test the power lock functionality before finalizing the assembly.