why does my Ford F-150 14th Generation (2021-2024) ABS light stay on

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface with the engine off.
• Disconnect the battery to prevent electrical shock.

2. Scan for Error Codes

• Use the OBD-II scanner to pull ABS-related trouble codes.
• Note down any codes for reference during repairs.

3. Inspect ABS Components

• ABS Fuses:

  • Locate the fuse box and inspect the ABS fuses.
  • Replace any blown fuses with the correct amperage.

• Wheel Speed Sensors:

  • Locate each wheel speed sensor; typically found near the wheel hub.
  • Check the wiring for frays or disconnections.
  • Clean any dirt or debris from the sensor and its connector.

4. Brake Fluid and System Check

• Check the brake fluid reservoir for adequate fluid level.
• If low, fill with manufacturer-recommended brake fluid (usually DOT 3 or DOT 4).
• Inspect brake lines for leaks or damage and repair or replace as necessary.

5. Test ABS Pump and Relay

• ABS Relay:

  • Locate the ABS relay in the fuse box.
  • Swap it with a similar relay to test functionality.

• ABS Pump:

  • Test the ABS pump for functionality using a multimeter.
  • Replace if non-operational.

6. Reconnect Battery and Clear Codes

• Reconnect the battery terminals securely.
• Use the OBD-II scanner to clear any stored ABS error codes.
• Start the vehicle and check if the ABS light turns off.