what does error code C0045 indicate in my Ford F-150 12th Generation (2009-2014)

Learn to diagnose and fix C0045 error code related to the left front wheel speed sensor in Ford F-150 (2009-2014). Step-by-step guide included.

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface and the ignition is off.
• Gather necessary tools and safety equipment.

2. Disconnect Battery

• Use a wrench to disconnect the negative terminal from the battery to prevent electrical shock.

3. Remove Left Front Wheel

• Loosen the lug nuts with a socket set.
• Lift the vehicle using a jack and secure it on jack stands.
• Remove the lug nuts completely and take off the wheel.

4. Inspect and Replace Wheel Speed Sensor

• Locate the left front wheel speed sensor on the hub assembly.
• Disconnect the sensor connector by pressing the tab and pulling it apart.
• Remove the mounting bolt(s) securing the sensor to the hub using a socket.
• Carefully pull the sensor out of its mount.
• Install the new wheel speed sensor by reversing the removal steps:
  • Insert the new sensor into the hub assembly.
  • Secure it with the mounting bolt(s) and torque to the manufacturer’s specifications (typically around 10-15 lb-ft).
  • Reconnect the sensor's wiring harness.

5. Reassemble and Reconnect Battery

• Place the wheel back onto the hub and hand-tighten the lug nuts.
• Lower the vehicle and fully tighten the lug nuts in a star pattern to the specified torque (usually around 100-150 lb-ft).
• Reconnect the negative battery terminal.

6. Clear Error Codes

• Use the OBD-II scanner to clear the C0045 error code from the vehicle’s computer.