my Toyota Highlander Third Generation (2014-2019) power windows not working what are the causes

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

549 words

Problem Statement

Learn how to diagnose and fix power window issues in Toyota Highlander (2014-2019). Step-by-step guide with symptoms, diagnostic steps, 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 systems to avoid shocks.
•Allow the vehicle to sit for a few minutes after disconnecting the battery to ensure all systems are powered down.

Symptoms

•Power window switches do not respond when pressed
•No sound from window motor when attempting to operate windows
•Windows stuck in a fixed position
•Driver's side master switch may be inoperative
•Possible blown fuses related to the power window circuit
•Intermittent operation of windows before total failure

Diagnostic Steps

1
Inspect the power window fuses in the fuse box for any blown fuses.
2
Use a multimeter to check for power at the window motor connector.
3
Test the operation of the master window switch for continuity.
4
Check for any visible wiring damage or loose connections in the door harness.
5
Inspect the window motor for any physical obstructions or damage.
6
Verify battery voltage to ensure there is sufficient power for 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

•OBD-II scanner
•Multimeter
•Socket set
•Flathead screwdriver
•Phillips screwdriver
•Fuse pullers

Parts Required

•Replacement power window motor (if faulty)
•Replacement power window switch (if necessary)
•Replacement fuses (as needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Symptoms

•Power window switches do not respond when pressed

•No sound from window motor when attempting to operate windows

•Windows stuck in a fixed position

•Driver's side master switch may be inoperative

•Possible blown fuses related to the power window circuit

•Intermittent operation of windows before total failure

Diagnostic Steps

1
Inspect the power window fuses in the fuse box for any blown fuses.
2
Use a multimeter to check for power at the window motor connector.
3
Test the operation of the master window switch for continuity.
4
Check for any visible wiring damage or loose connections in the door harness.
5
Inspect the window motor for any physical obstructions or damage.
6
Verify battery voltage to ensure there is sufficient power for window operation.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, socket set, flathead screwdriver, Phillips screwdriver.
Ensure the vehicle is parked on a level surface and the ignition is off.
Disconnect the battery to prevent any electrical shorts.

2. Replace Blown Fuses

Sub-steps:
- Locate the fuse box, typically found under the dashboard or in the engine compartment.
- Identify the power window fuse using the fuse diagram.
- Remove the blown fuse using fuse pullers or pliers.
- Install a new fuse of the same amperage rating.

3. Repair or Replace the Window Motor

Sub-steps:
- Remove the door panel:
  - Unscrew any visible screws and gently pry off the panel using a flathead screwdriver.
  - Disconnect any electrical connectors attached to the panel.
- Locate the window motor and inspect for damage.
- If faulty, disconnect the motor wiring harness.
- Remove the mounting bolts securing the motor to the door frame.
- Install the new window motor by reversing the removal steps.
- Reconnect the wiring harness and reattach the door panel.

4. Test Window Switches

Sub-steps:
- Reconnect the battery to restore power.
- Test the master switch and individual window switches for proper function.
- If switches remain inoperative, consider replacing the master switch assembly.