how to troubleshoot Toyota Highlander Third Generation (2014-2019) power windows not working

Toyota Highlander Third Generation (2014-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

539 words

Problem Statement

Learn how to troubleshoot and fix power windows not working in Toyota Highlander 2014-2019. Step-by-step guide with diagnostic and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to avoid shock.
•Ensure the vehicle is turned off and in a secure position before starting repairs.

Symptoms

•All power windows are inoperative
•Window switches do not illuminate when pressed
•No sound when attempting to operate windows
•Driver's side master switch is unresponsive
•Window lock feature is engaged (if applicable)

Diagnostic Steps

1
Check the fuse for the power windows in the fuse box for continuity.
2
Inspect the window switch(es) for any visible damage or dirt accumulation.
3
Test the master window switch using a multimeter to ensure it is functioning properly.
4
Verify power and ground at the window motor connectors using a multimeter.
5
Check for any broken wires or loose connections within the window regulator circuit.
6
Inspect the battery voltage to ensure it is sufficient and stable.

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

•Multimeter
•Socket set
•Fuse puller
•Trim removal tool

Parts Required

•Replacement fuse (if blown)
•Window switch (if faulty)
•Window motor (if defective)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the fuse for the power windows in the fuse box for continuity.
2
Inspect the window switch(es) for any visible damage or dirt accumulation.
3
Test the master window switch using a multimeter to ensure it is functioning properly.
4
Verify power and ground at the window motor connectors using a multimeter.
5
Check for any broken wires or loose connections within the window regulator circuit.
6
Inspect the battery voltage to ensure it is sufficient and stable.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal to prevent electrical shock.
Ensure the vehicle is in a safe and stable position.

2. Inspect and Replace Fuses

Locate the fuse box under the dashboard or in the engine compartment.
Remove the cover and locate the power window fuse.
Use a fuse puller or pliers to remove the fuse and inspect it.
If the fuse is blown, replace it with a new fuse of the same amperage (typically 30A).

3. Test Window Switches

Reconnect the battery temporarily.
Test each window switch individually, starting with the master switch on the driver's door.
If the switch doesn't illuminate or click, it may need replacement.
Remove the switch by carefully prying it out of the panel with a trim tool.

4. Check Window Motor

If switches are functional, check the window motor.
Remove the door panel using a socket set to access the window motor.
Disconnect the motor connector and use a multimeter to check for voltage when the switch is pressed.
If voltage is present and the motor does not operate, replace the window motor.

5. Reassemble Components

Reinstall the door panel and ensure all clips and screws are secured.
Reconnect the negative battery terminal.
Confirm all components are functioning before concluding the repair.