how to fix B1302 code on my Ford F-150 14th Generation (2021-2024)

Solution

1. Preparation

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

2. Inspect and Clean Battery Connections

• Sub-steps:
  1. Remove the battery terminal covers if present.
  2. Use a wire brush to clean any corrosion from the battery terminals and cable ends.
  3. Ensure that the connections are tight and secure before reattaching.

3. Test and Replace the Battery (if necessary)

• Sub-steps:
  1. If the battery voltage is below 12.4V, consider charging the battery first. If it fails a load test, replace it.
  2. To replace, disconnect the positive terminal first, followed by the negative terminal.
  3. Remove the battery hold-downs and lift the battery out of the tray.
  4. Install the new battery by reversing the removal steps and ensure that connections are tight.

4. Inspect and Repair Wiring

• Sub-steps:
  1. Check all wiring and connectors for signs of wear, corrosion, or damage.
  2. Repair or replace any damaged wiring, ensuring a solid connection at all points.
  3. Use dielectric grease on connectors to prevent future corrosion.

5. Reconnect Battery and Clear Codes

• Sub-steps:
  1. Reconnect the negative battery terminal first, followed by the positive terminal.
  2. Use the OBD-II scanner to clear the B1302 code from the vehicle's computer.
  3. Start the engine and monitor the electrical system for proper operation.