what causes my Ford Explorer Fifth Generation (2011-2019) headlights to flicker

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

525 words

Problem Statement

Learn how to diagnose and fix flickering headlights on Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components to prevent shocks.

Symptoms

•Headlights flickering or dimming unexpectedly
•Dashboard lights also flickering
•Battery warning light illuminated
•Difficulty starting the vehicle
•Electrical accessories malfunctioning (e.g., radio, power windows)

Diagnostic Steps

1
Scan the vehicle's OBD-II system for error codes related to the electrical system.
2
Inspect the battery for corrosion on terminals and ensure it has a proper charge.
3
Check the alternator output using a multimeter while the engine is running.
4
Examine headlight wiring and connectors for signs of wear, damage, or loose connections.
5
Test the headlight bulbs for proper function and replace any that are burnt out or faulty.
6
Inspect the fuse related to the headlights for any signs of damage or failure.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

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
•Multimeter
•Socket set
•Screwdriver set
•Safety gloves
•Safety glasses

Parts Required

•Headlight bulbs (if faulty)
•Battery terminals (if corroded)
•Alternator (if testing indicates failure)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan the vehicle's OBD-II system for error codes related to the electrical system.
2
Inspect the battery for corrosion on terminals and ensure it has a proper charge.
3
Check the alternator output using a multimeter while the engine is running.
4
Examine headlight wiring and connectors for signs of wear, damage, or loose connections.
5
Test the headlight bulbs for proper function and replace any that are burnt out or faulty.
6
Inspect the fuse related to the headlights for any signs of damage or failure.

Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, socket set, screwdriver set, safety gloves, and safety glasses.
Ensure the vehicle is parked on a level surface with the engine off. Disconnect the battery to prevent electrical shock.

2. Inspect Battery and Connections

Sub-step 1: Remove the battery terminals (negative first, then positive) and clean any corrosion with a wire brush.
Sub-step 2: Reconnect the battery terminals securely, ensuring tight connections.
Sub-step 3: Check the battery voltage with a multimeter. A healthy battery should read between 12.4V to 12.7V when the engine is off.

3. Test the Alternator

Sub-step 1: Start the engine and measure the voltage at the battery terminals with the multimeter.
Sub-step 2: The reading should be between 13.7V to 14.7V, indicating the alternator is charging properly.
Sub-step 3: If the voltage is outside this range, the alternator may need replacement.

4. Inspect Headlight Wiring and Bulbs

Sub-step 1: Remove the headlight assembly by unscrewing the retaining bolts and disconnecting the wiring harness.
Sub-step 2: Inspect the wiring for any frays, breaks, or loose connections; repair or replace as necessary.
Sub-step 3: Test the headlight bulbs by replacing them with known working bulbs if necessary.

5. Check Fuses

Sub-step 1: Locate the fuse box and identify the fuse for the headlights.
Sub-step 2: Remove the fuse and check for continuity using a multimeter; replace if blown.
Sub-step 3: Reinstall the fuse and ensure it is seated properly.