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Home/Cars/Ford/F-150/14th Generation (2021-2024)/my Ford F-150 14th Generation (2021-2024) check engine light won’t turn off how to reset it

my Ford F-150 14th Generation (2021-2024) check engine light won’t turn off how to reset it

Ford F-150 14th Generation (2021-2024)

Severity: mediumDifficulty: medium30 minutes to 1 hour
3 min read
451 words

Problem Statement

Learn how to reset the check engine light on your 2021 Ford F-150. Step-by-step guide with diagnostic procedures and troubleshooting tips.

Component
Engine
Repair Time
30 minutes to 1 hour

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems to prevent shorts or shocks.

Symptoms

  • •Check engine light illuminated
  • •Possible rough idle
  • •Reduced fuel efficiency
  • •Engine performance issues
  • •Engine stalling (if applicable)

Diagnostic Steps

  1. 1Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
  2. 2Review the trouble codes and their descriptions to determine the underlying issue.
  3. 3Clear the error codes using the OBD-II scanner to reset the check engine light.
  4. 4Drive the vehicle for a short distance (10-20 miles) to check if the light returns.
  5. 5Monitor for any unusual engine behavior during the drive.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and the engine is cool.
  • Disconnect the battery for safety (optional, but can help reset systems).

2. Scan for Codes

  • Tools Required: OBD-II scanner
  • Connect the OBD-II scanner to the vehicle's diagnostic port (usually under the dashboard).
  • Turn on the ignition without starting the engine and follow the scanner instructions to read the codes.

3. Clear Codes

  • With the OBD-II scanner still connected, navigate to the option to clear or erase codes.
  • Confirm the action and wait for the scanner to process the command.

4. Test Drive

  • Reconnect the battery (if disconnected) and start the engine.
  • Take the vehicle for a test drive under normal conditions for about 10-20 miles.
  • Observe if the check engine light remains off during and after the drive.

5. Recheck for Codes

  • After the test drive, use the OBD-II scanner again to check for any new or recurring trouble codes.
  • If codes reappear, further diagnosis will be needed based on the specific codes.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • OBD-II scanner
  • Basic hand tools (screwdrivers, wrench set)

Parts Required

  • Battery

Additional Information

Component

Engine

Repair Time

30 minutes to 1 hour

Difficulty

medium

Severity

medium

Tools

2 items

Parts

1 items

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