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Home/Cars/Ford/F-150/13th Generation (2015-2020)/how to fix the brake light issue on my Ford F-150 13th Generation (2015-2020)?

how to fix the brake light issue on my Ford F-150 13th Generation (2015-2020)?

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

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

Problem Statement

Learn how to diagnose and fix brake light issues on Ford F-150 13th Generation (2015-2020). Step-by-step guide with symptoms and solutions.

Component
Electrical
Repair Time
1-2 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems to prevent shocks and short circuits.

Symptoms

  • •Brake lights do not illuminate when the brake pedal is pressed
  • •Brake light warning indicator on the dashboard (if applicable)
  • •Fuses related to the brake lights are blown
  • •Unusual behavior of the taillights (e.g., flickering)
  • •No response when pressing the brake pedal

Diagnostic Steps

  1. 1Inspect the brake light bulbs for any signs of damage or burnout.
  2. 2Check the brake light fuse in the fuse box and replace if blown.
  3. 3Use an OBD-II scanner to check for any related error codes.
  4. 4Test the brake light switch located near the brake pedal for proper operation.
  5. 5Inspect wiring and connectors for any visible damage or corrosion.
  6. 6Verify the ground connection for the brake light circuit.

Solution

Solution

1. Preparation

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

2. Inspect and Replace Brake Light Bulbs

  • Step 1: Open the tailgate and access the taillight assembly.
  • Step 2: Remove the taillight assembly by unscrewing the retaining screws.
  • Step 3: Pull the bulb socket out of the assembly and inspect the bulb.
  • Step 4: Replace any burnt-out bulbs with new ones (ensure they are the correct type).
  • Tools Required: Screwdriver set, replacement bulbs.

3. Check and Replace Brake Light Fuse

  • Step 1: Locate the fuse box (usually under the dashboard or in the engine compartment).
  • Step 2: Identify the fuse associated with the brake lights (consult the owner's manual for the exact location).
  • Step 3: Remove the fuse and inspect it. Replace it if it is blown with a fuse of the same amperage.
  • Tools Required: Fuse puller or needle-nose pliers.

4. Inspect and Replace Brake Light Switch

  • Step 1: Locate the brake light switch above the brake pedal.
  • Step 2: Disconnect the wiring harness from the switch.
  • Step 3: Remove the switch by unscrewing it or unhooking it.
  • Step 4: Replace it with a new switch and reconnect the wiring harness.
  • Tools Required: Socket set, screwdriver set.

5. Inspect Wiring and Ground Connections

  • Step 1: Visually inspect the wiring harness for any frayed wires or corrosion.
  • Step 2: Ensure all connectors are securely attached.
  • Step 3: Check the ground connection for the brake light circuit for tightness and cleanliness.
  • Tools Required: Multimeter (for testing), wire brush (if cleaning is needed).

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

  • Screwdriver set
  • Multimeter
  • Fuse puller or needle-nose pliers
  • Socket set

Parts Required

  • Brake light bulbs
  • Brake light fuse (if applicable)
  • Brake light switch (if applicable)

Additional Information

Component

Electrical

Repair Time

1-2 hours

Difficulty

medium

Severity

medium

Tools

4 items

Parts

3 items

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