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Home/Cars/Ford/F-150/13th Generation (2015-2020)/how to troubleshoot lane departure warning false alarms on Ford F-150

how to troubleshoot lane departure warning false alarms on Ford F-150

Ford F-150 13th Generation (2015-2020)

Severity: mediumDifficulty: medium1-2 hours
3 min read
420 words

Problem Statement

Learn how to troubleshoot false lane departure warning alarms on Ford F-150. Step-by-step guide with diagnostic steps and solutions to fix the issue.

Component
Electrical
Repair Time
1-2 hours

Safety Warnings

  • ⚠Disconnect battery before working on electrical systems to avoid shock.

Symptoms

  • •Lane departure warning light activates unnecessarily
  • •Audible alerts sound without any lane departure
  • •Steering wheel vibration occurs without lane change
  • •Check system message appears on the dashboard
  • •Inconsistent warning behavior in different road conditions

Diagnostic Steps

  1. 1Inspect the camera and sensors for obstructions such as dirt, ice, or debris.
  2. 2Scan the vehicle's computer system for any error codes related to the lane departure warning.
  3. 3Check for recent software updates or recalls on the lane keeping assist system.
  4. 4Verify the calibration of the camera and sensors to ensure they are aligned properly.
  5. 5Test the system in different driving conditions to identify any patterns in false alarms.

Solution

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. Clean Camera and Sensors

  • Locate the front-facing camera and sensors.
  • Use a soft, damp cloth to gently clean the camera lens and sensors.
  • Ensure there are no obstructions blocking the view.

3. Software Update

  • Connect an OBD-II scanner to check for available updates.
  • If updates are available, follow the manufacturer's instructions to install them.
  • Reconnect the battery after the update process is complete.

4. Calibration

  • Use a specialized calibration tool or visit a dealership for proper calibration.
  • Ensure the vehicle is aligned correctly with the calibration targets as per the manufacturer's specifications.

5. Test the System

  • Conduct a test drive to monitor the lane departure warning system's performance.
  • Observe if false alarms still occur during the drive.

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
  • Soft cloth for cleaning
  • Calibration tool (if available)

Parts Required

  • None typically required unless sensors are damaged.

Additional Information

Component

Electrical

Repair Time

1-2 hours

Difficulty

medium

Severity

medium

Tools

3 items

Parts

1 items

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