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

high

Severity

3 min read

572 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 battery before working on electrical systems to avoid shock or short circuits
•Wear safety gloves when handling electrical components to prevent injury

Symptoms

•Inconsistent or flickering dashboard lights
•Power windows not functioning
•Infotainment system rebooting or not powering on
•Difficulty starting the vehicle
•Malfunctioning exterior lights (headlights, tail lights)
•Warning lights illuminated on the dashboard

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect battery voltage with a multimeter
3
Check battery terminals and connections for corrosion or looseness
4
Examine the vehicle’s fuse box for any blown fuses
5
Verify ground connections for corrosion and tightness
6
Visually inspect wiring harnesses for signs of wear, fraying, or damage

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
•Wiring diagram
•Safety gloves
•Wire brush
•Fuse puller

Parts Required

•Replacement fuses
•Electrical wiring (if damaged)
•Butt connectors or soldering supplies

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Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect battery voltage with a multimeter
3
Check battery terminals and connections for corrosion or looseness
4
Examine the vehicle’s fuse box for any blown fuses
5
Verify ground connections for corrosion and tightness
6
Visually inspect wiring harnesses for signs of wear, fraying, or damage

Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, socket set, wiring diagram, safety gloves.
Ensure the vehicle is parked on a level surface with the ignition off.

2. Battery Service

Step 1: Disconnect the battery terminals (negative first, then positive).
Step 2: Clean the battery terminals and cable connections using a wire brush.
Step 3: Reconnect the battery terminals (positive first, then negative) ensuring they are tight.

3. Replace Blown Fuses

Step 1: Identify any blown fuses using the vehicle’s fuse diagram.
Step 2: Remove the blown fuses using a fuse puller.
Step 3: Replace with new fuses of the same amperage rating.

4. Repair Damaged Wiring

Step 1: Locate damaged wiring in the harness using the visual inspection results.
Step 2: Cut out the damaged section of the wire and strip the insulation from both ends.
Step 3: Use butt connectors or solder to connect the new wire section, then insulate with electrical tape or heat shrink tubing.

5. Check and Repair Ground Connections

Step 1: Locate the ground points as per the wiring diagram.
Step 2: Clean the contact surfaces of ground connections to ensure a solid connection.
Step 3: Tighten the ground connections to the specified torque (usually around 10-15 lb-ft).