why does my Ford Explorer Fifth Generation (2011-2019) have a check charging system warning

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

575 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 the 'Check Charging System' warning in Ford Explorer 2011-2019. Step-by-step guide with diagnostic procedures 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 components to prevent shocks or shorts.
•Allow the engine to cool before inspecting the alternator or serpentine belt.

Symptoms

•Illuminated 'Check Charging System' warning light on the dashboard
•Dimming headlights or interior lights
•Difficulty starting the engine or slow cranking
•Battery warning light illuminated
•Electrical components malfunctioning or responding slowly
•Unusual noises from the alternator

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any related codes.
2
Check the battery voltage with a multimeter; it should read around 12.6 volts when fully charged.
3
Inspect battery terminals for corrosion or loose connections.
4
Test the alternator output voltage while the engine is running; it should be between 13.5 to 14.5 volts.
5
Inspect the serpentine belt for wear or damage, ensuring it is properly tensioned.
6
Check for any blown fuses related to the charging system.

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
•Wrench set
•Torque wrench
•Wire brush

Parts Required

•New battery (if necessary)
•New alternator (if necessary)
•Serpentine belt (if worn)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any related codes.
2
Check the battery voltage with a multimeter; it should read around 12.6 volts when fully charged.
3
Inspect battery terminals for corrosion or loose connections.
4
Test the alternator output voltage while the engine is running; it should be between 13.5 to 14.5 volts.
5
Inspect the serpentine belt for wear or damage, ensuring it is properly tensioned.
6
Check for any blown fuses related to the charging system.

Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, socket set, wrench set, safety gloves, safety glasses
Disconnect the negative battery cable to prevent any electrical shorts during the repair.

2. Inspect and Clean Battery Connections

Remove the positive (+) and negative (-) battery cables.
Clean the battery terminals and cable ends using a wire brush to remove any corrosion.
Reconnect the battery cables securely.

3. Test and Replace Battery (if necessary)

Use a multimeter to check the static voltage of the battery.
- If the voltage is below 12.4 volts, consider charging or replacing the battery.
If the battery needs replacement, ensure it is of the correct type and size as specified by the manufacturer.

4. Inspect and Replace Alternator (if necessary)

Tools Required: Wrench set, socket set, torque wrench
Remove the serpentine belt by releasing tension from the tensioner pulley.
Disconnect the electrical connectors and remove the mounting bolts of the alternator.
Install the new alternator and torque the mounting bolts to the manufacturer’s specifications.
Reconnect the electrical connectors and re-install the serpentine belt.

5. Final Checks

Reconnect the negative battery cable.
Start the engine and monitor the voltage output from the alternator with a multimeter.
Ensure the output voltage is between 13.5 to 14.5 volts with the engine running.