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

Toyota Highlander Third Generation (2014-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

484 words

Problem Statement

Learn how to diagnose and fix power windows not working in Toyota Highlander (2014-2019). 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 starting any electrical work to avoid shocks or shorts.

Symptoms

•All power windows are unresponsive
•Power window switch does not light up when pressed
•No sound from window motors when switches are activated
•Possible blown fuses related to power windows
•Driver's side window control switch may be malfunctioning
•Windows may work intermittently or only in one direction

Diagnostic Steps

1
Inspect the power window fuses in the fuse box for any blown fuses.
2
Use an OBD-II scanner to check for any related error codes indicating electrical issues.
3
Test the power window switches for continuity using a multimeter.
4
Check for voltage at the window motor connectors when the switch is activated.
5
Inspect wiring harnesses for any visible damage or loose connections.
6
Verify if the child lock feature is engaged, preventing window operation.

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
•Multimeter
•OBD-II scanner
•Screwdriver

Parts Required

•Power window switch (if faulty)
•Window motor (if faulty)
•Replacement fuses (if needed)

Related Faults

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Symptoms

•All power windows are unresponsive

•Power window switch does not light up when pressed

•No sound from window motors when switches are activated

•Possible blown fuses related to power windows

•Driver's side window control switch may be malfunctioning

•Windows may work intermittently or only in one direction

Diagnostic Steps

1
Inspect the power window fuses in the fuse box for any blown fuses.
2
Use an OBD-II scanner to check for any related error codes indicating electrical issues.
3
Test the power window switches for continuity using a multimeter.
4
Check for voltage at the window motor connectors when the switch is activated.
5
Inspect wiring harnesses for any visible damage or loose connections.
6
Verify if the child lock feature is engaged, preventing window operation.

Solution

1. Preparation

Gather tools required: socket set, multimeter, OBD-II scanner, and screwdriver.
Disconnect the negative battery terminal to ensure safety.

2. Inspect and Replace Fuses

Locate the fuse box (refer to the owner's manual for exact location).
Remove the power window fuse using a fuse puller and inspect it.
If the fuse is blown, replace it with a new fuse of the same amperage.

3. Test Power Window Switches

Remove the power window switch panel using a flat-head screwdriver.
Disconnect the switch connector and test for continuity with a multimeter.
If the switch is faulty, replace it with a new switch.

4. Check Window Motor Operation

Remove the door panel to access the window motor.
Disconnect the motor connector and use a multimeter to check for voltage when the window switch is activated.
If there is no voltage, trace the wiring back to the switch for issues. If voltage is present but the motor does not operate, replace the window motor.

5. Reassemble Components

Reattach the door panel after all checks and repairs are complete.
Reconnect the power window switch and the negative battery terminal.