The inertia switch, also known as the fuel pump inertia switch, is a safety device that cuts off the flow of fuel to the engine in case of a collision. In a 2006 Ford F-150, the inertia switch is located on the driver's side of the vehicle, behind the kick panel near the floor.
Here's how you can locate the inertia switch in your 2006 Ford F-150:
1. Open the driver's side door and remove the floor mat.
2. Look for a small black or red button behind the kick panel, near the floor. This button is the inertia switch.
3. If the inertia switch has been tripped (activated), it will be popped out. To reset it, simply press the button back in until it clicks.
Note: If the inertia switch has been tripped, it's important to determine the cause and have any damage repaired before attempting to start the vehicle.