how to reset the battery light on Ford F-150 13th Generation (2015-2020)

Ford F-150 13th Generation (2015-2020)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

491 words

Problem Statement

Learn how to reset the battery light on Ford F-150 13th Generation (2015-2020). Step-by-step guide with diagnostic procedures 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 systems.
•Allow the engine to cool before performing any maintenance.

Symptoms

•Battery light illuminated on the dashboard
•Engine cranking slowly or not starting at all
•Dim or flickering lights
•Warning message on the display indicating battery or charging system issue
•Strange electrical behavior (e.g., radio or power windows malfunctioning)

Diagnostic Steps

1
Verify the battery voltage using a multimeter; a healthy battery should read around 12.6 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Check the alternator output voltage; it should be between 13.8 to 14.4 volts when the engine is running.
4
Scan the vehicle's computer for any error codes related to the charging system using an OBD-II scanner.
5
Examine the serpentine belt for wear or damage, ensuring it is properly tensioned and not slipping.

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
•Wire brush
•Torque wrench

Parts Required

•New alternator (if needed)
•New serpentine belt (if damaged)

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Diagnostic Steps

1
Verify the battery voltage using a multimeter; a healthy battery should read around 12.6 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Check the alternator output voltage; it should be between 13.8 to 14.4 volts when the engine is running.
4
Scan the vehicle's computer for any error codes related to the charging system using an OBD-II scanner.
5
Examine the serpentine belt for wear or damage, ensuring it is properly tensioned and not slipping.

Solution

1. Preparation

Gather necessary tools and safety equipment.
Ensure the vehicle is parked on a level surface and the engine is turned off.
Wear safety gloves and goggles.

2. Inspect and Clean Battery Connections

1.1 Disconnect the negative terminal of the battery using an appropriate socket or wrench.
1.2 Clean the terminals and cable ends with a wire brush to remove corrosion.
1.3 Reconnect the negative terminal securely and ensure a tight fit.

3. Check and Replace the Alternator (if necessary)

2.1 Disconnect the negative battery terminal again.
2.2 Remove the serpentine belt by loosening the tensioner pulley.
2.3 Disconnect the electrical connectors and mounting bolts from the alternator.
2.4 Install the new alternator by reversing the removal steps, ensuring all connections are secure.
2.5 Reinstall the serpentine belt and ensure proper tension.

4. Reset Battery Light

3.1 Reconnect the negative battery terminal.
3.2 Start the engine and allow it to run for a few minutes.
3.3 If the battery light remains on, disconnect the battery again, wait for 10 minutes, and reconnect to reset the system.