how to troubleshoot my Toyota Corolla E170 (2013-2019) power window that won’t work?

Toyota Corolla E170 (2013-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

515 words

Problem Statement

Learn how to troubleshoot and fix power window issues in your 2013-2019 Toyota Corolla E170. Step-by-step guide with diagnostic steps and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components to prevent short circuits.

Symptoms

•Power window switch does not respond when pressed
•Window remains in the closed position
•No sound or movement from the window motor
•Other power windows in the vehicle may be functioning normally
•Window lock switch may be engaged, preventing operation

Diagnostic Steps

1
Inspect the fuse related to the power windows in the fuse box.
2
Check the power window switch for continuity using a multimeter.
3
Test the window motor by applying direct power to it.
4
Inspect the wiring harness and connectors for signs of damage or corrosion.
5
Verify the operation of the window lock switch.

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

Parts Required

•Power window switch (if defective)
•Window motor (if defective)
•Fuse (if blown)

Related Faults

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Diagnostic Steps

1
Inspect the fuse related to the power windows in the fuse box.
2
Check the power window switch for continuity using a multimeter.
3
Test the window motor by applying direct power to it.
4
Inspect the wiring harness and connectors for signs of damage or corrosion.
5
Verify the operation of the window lock switch.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, socket set, and flathead screwdriver.
Ensure the vehicle is parked on a level surface and the ignition is turned off.

2. Inspect the Fuse

Locate the fuse box, typically under the dashboard or in the engine compartment.
Identify the power window fuse (refer to the owner's manual for the specific fuse number).
Remove the fuse and inspect it for continuity; replace if blown.

3. Test the Power Window Switch

Remove the power window switch panel using a flathead screwdriver.
Disconnect the wiring harness from the switch.
Use a multimeter to check for continuity across the switch terminals when pressed; replace the switch if defective.

4. Test the Window Motor

Access the window motor by removing the door panel (use a socket set to remove screws and clips).
Disconnect the window motor connector.
Using a multimeter, check for voltage at the motor connector while pressing the window switch; if voltage is present and the motor does not operate, the motor needs replacement.
For direct testing, connect the motor to a 12V power source to see if it functions.

5. Inspect Wiring and Connectors

Visually inspect the wiring harness for any fraying, cuts, or corrosion, particularly around the door hinge area.
Clean any corroded connectors with electrical contact cleaner and ensure a tight connection.

6. Check Window Lock Switch

Ensure the window lock switch is not engaged; this can prevent operation of the window switches.