how to troubleshoot the electric windows on my Toyota Corolla E170 (2013-2019)

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

532 words

Problem Statement

Learn how to troubleshoot and fix electric windows on Toyota Corolla E170 (2013-2019). Step-by-step guide with diagnostic steps 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 components near the engine or electrical systems.

Symptoms

•Windows do not respond to switch inputs
•Windows operate intermittently or sluggishly
•One or more windows are stuck in the closed or open position
•Clicking noise heard when switch is pressed
•Window motor operates but glass does not move
•Window control switch feels loose or unresponsive

Diagnostic Steps

1
Inspect the window switches for any visible damage or wear.
2
Check the fuse related to the power windows in the fuse box.
3
Use an OBD-II scanner to check for any related fault codes.
4
Test the window motor by applying direct battery voltage.
5
Inspect the wiring harness for any signs of damage or disconnection.
6
Check the window regulator mechanism for any obstructions or mechanical failure.

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

•Screwdrivers (flat and Phillips)
•Multimeter
•Socket set
•Trim removal tool
•OBD-II scanner

Parts Required

•Window switch (if faulty)
•Window motor (if defective)
•Window regulator (if damaged)
•Fuses (if blown)

Related Faults

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Diagnostic Steps

1
Inspect the window switches for any visible damage or wear.
2
Check the fuse related to the power windows in the fuse box.
3
Use an OBD-II scanner to check for any related fault codes.
4
Test the window motor by applying direct battery voltage.
5
Inspect the wiring harness for any signs of damage or disconnection.
6
Check the window regulator mechanism for any obstructions or mechanical failure.

Solution

1. Preparation

Tools Required: Screwdrivers (flat and Phillips), multimeter, socket set, trim removal tool, OBD-II scanner.
Disconnect the battery to prevent any electrical shorts or shocks.

2. Inspect and Replace the Window Switch

Remove the door panel using a trim removal tool.
Disconnect the electrical connector from the window switch.
Test the switch with a multimeter for continuity; replace if faulty.
Reconnect the new switch and reassemble the door panel.

3. Check and Replace the Fuse

Locate the fuse box and identify the fuse for the power windows.
Remove the fuse using a fuse puller.
Inspect the fuse for continuity; replace if blown with the same amperage fuse.
Reinsert the fuse and check functionality.

4. Test and Replace the Window Motor

If the switch is functional, test the window motor by applying direct voltage from a battery.
If the motor does not run, it may need replacement.
Remove the door panel again, disconnect the motor, and unbolt it from the door frame.
Install the new motor, reconnect the wiring, and test the window operation.

5. Inspect Wiring and Regulator

Check the wiring harness for frayed or damaged wires.
If the wiring appears intact, inspect the window regulator for obstructions.
If the regulator is damaged or not functioning properly, replace it as per manufacturer specifications.