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

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

577 words

Problem Statement

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

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shocks or shorts
•Allow electrical components to cool before handling to avoid burns

Symptoms

•Battery warning light illuminated on the dashboard
•Power windows or locks not functioning
•Malfunctioning dashboard gauges
•Inconsistent or flickering interior/exterior lights
•Difficulty starting the engine or no crank condition
•Audio system failure or intermittent operation

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect battery and connections for corrosion
3
Test voltage at battery terminals with a multimeter
4
Check fuses for continuity using a multimeter
5
Inspect ground connections for security and corrosion
6
Perform a voltage drop test across wiring and connections

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
•Fuse puller
•Basic hand tools

Parts Required

•Replacement fuses
•Electrical connectors
•Battery cleaner

Related Faults

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Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, fuse puller, basic hand tools.
Disconnect the negative terminal of the battery to ensure safety while working on the electrical system.

2. Battery and Connections

Inspect the Battery: Clean any corrosion from terminals using a mixture of baking soda and water. Rinse and dry.
Reconnect Battery: Reconnect the battery terminals, ensuring they are tight and secure.

3. Fuses and Relays

Check and Replace Fuses: Remove any blown fuses and replace them with new fuses of the same amperage. Ensure that the fuse box cover is properly reattached afterward.
Test Relays: If applicable, swap suspect relays with known good relays to test their functionality.

4. Ground Connections

Inspect Grounding Points: Locate and clean any ground connections, applying dielectric grease to prevent future corrosion.
Re-secure Ground Wires: Ensure all ground wires are secured tightly to their respective mounting points.

5. Voltage Drop Testing

Perform Testing: Use a multimeter to measure the voltage drop across various components (e.g., starter, alternator, electrical connectors) while the circuit is under load.
Identify High Resistance: If a significant voltage drop is detected (over 0.5 volts), repair or replace the affected wiring or connectors.