how to troubleshoot the rear sliding window not working on my Ford F-150 13th Generation (2015-2020)

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

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

546 words

Problem Statement

Learn how to troubleshoot and fix the rear sliding window issue on your Ford F-150 (2015-2020). Step-by-step guide with diagnostic and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow the vehicle to cool before working on any components to avoid burns.

Symptoms

•Rear sliding window does not open or close
•Window operates intermittently or is completely unresponsive
•Window motor makes noise when the switch is activated but does not move the glass
•Check for any obstructions in the window track
•Dashboard warning lights related to electrical systems may be illuminated

Diagnostic Steps

1
Inspect the rear window switch for visual damage or wear.
2
Check the vehicle's fuse box for any blown fuses related to the window operation.
3
Use a multimeter to test the voltage at the rear window motor connector when the switch is activated.
4
Inspect the wiring harness from the switch to the rear window motor for any signs of damage or corrosion.
5
Remove the rear door panel to visually inspect the window motor and regulator assembly.
6
Test the window motor directly by applying battery voltage to determine if it functions independently.

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

•Socket set
•Screwdriver set
•Multimeter
•Wire strippers/crimpers

Parts Required

•Window motor (if faulty)
•Electrical connectors (if damaged)

Related Faults

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Symptoms

•Rear sliding window does not open or close

•Window operates intermittently or is completely unresponsive

•Window motor makes noise when the switch is activated but does not move the glass

•Check for any obstructions in the window track

•Dashboard warning lights related to electrical systems may be illuminated

Diagnostic Steps

1
Inspect the rear window switch for visual damage or wear.
2
Check the vehicle's fuse box for any blown fuses related to the window operation.
3
Use a multimeter to test the voltage at the rear window motor connector when the switch is activated.
4
Inspect the wiring harness from the switch to the rear window motor for any signs of damage or corrosion.
5
Remove the rear door panel to visually inspect the window motor and regulator assembly.
6
Test the window motor directly by applying battery voltage to determine if it functions independently.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle battery to ensure safety.
Tools Required:
- Socket set
- Screwdriver set
- Multimeter
- Wire strippers/crimpers (if needed)

2. Access the Window Motor

Remove the rear door panel:
1. Use a screwdriver to remove screws securing the door panel.
2. Carefully pry off the door panel clips with a trim tool, starting from the bottom and working your way up.
3. Disconnect any electrical connectors for switches or sensors attached to the door panel.

3. Inspect and Test the Window Motor

Locate the window motor and regulator assembly:
1. Visually inspect the motor for any signs of damage or wear.
2. Use a multimeter to check for voltage at the connector while operating the switch.
If the motor shows no voltage:
1. Trace the wiring back to the switch and check for continuity.
2. Repair or replace any damaged wiring as necessary.
If the motor receives voltage but does not operate:
1. Disconnect the motor from the assembly.
2. Connect it directly to a 12V battery to test its operation.
3. If it still does not work, replace the motor.

4. Reassemble the Door Panel

Once repairs are complete:
1. Reconnect the window motor and any electrical connectors.
2. Reattach the door panel, ensuring all clips and screws are secured.
3. Reconnect the vehicle battery.