how to diagnose Ford Explorer Fifth Generation (2011-2019) electrical problems

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

485 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix electrical problems in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with symptoms and solutions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on any electrical systems to avoid shock or short circuits.

Symptoms

•Check engine light illuminated
•Power windows not functioning
•Dashboard lights flickering or not illuminating
•Radio and infotainment system malfunctioning
•Difficulty starting the engine
•Unresponsive or malfunctioning key fob

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the battery connections for corrosion or loose terminals.
3
Check the vehicle's fuses and relays for any blown or faulty components.
4
Use a multimeter to measure voltage at the battery and ensure it is within the normal range (12.4-12.7 volts).
5
Inspect wiring harnesses for any signs of damage, fraying, or shorts.
6
Test individual electrical components (e.g., power windows, radio) for functionality.

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
•Wire brush
•Socket set
•Screwdrivers
•Relay tester (optional)

Parts Required

•Replacement fuses (as needed)
•Electrical connectors and heat shrink tubing (if wiring repair is needed)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the battery connections for corrosion or loose terminals.
3
Check the vehicle's fuses and relays for any blown or faulty components.
4
Use a multimeter to measure voltage at the battery and ensure it is within the normal range (12.4-12.7 volts).
5
Inspect wiring harnesses for any signs of damage, fraying, or shorts.
6
Test individual electrical components (e.g., power windows, radio) for functionality.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery to prevent electrical shock or short circuits.

2. Inspect Battery and Connections

Sub-steps:
1. Remove the battery terminals (negative first, then positive).
2. Clean any corrosion from the battery terminals and connectors using a wire brush.
3. Reconnect the battery terminals securely (positive first, then negative).

3. Check Fuses and Relays

Sub-steps:
1. Locate the fuse box; refer to the owner’s manual for the exact location.
2. Remove each fuse one at a time and inspect for breakage; replace any blown fuses with the same amperage rating.
3. Test relays by swapping with a known good relay or using a relay tester.

4. Wiring Inspection

Sub-steps:
1. Visually inspect wiring harnesses for signs of wear or damage.
2. Repair any damaged wires using appropriate electrical connectors and heat shrink tubing.
3. Ensure all connectors are seated properly.

5. Test Components

Sub-steps:
1. For components like the power windows, use a multimeter to check for voltage at the switch and motor.
2. If no voltage is present, trace back through the wiring to find the break or issue.
3. Replace any faulty components as needed.