my Toyota Corolla E170 (2013-2019) power windows won't work what to check

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative terminal of the battery to prevent electrical shock.

2. Check and Replace Fuses

• Locate the fuse box (usually under the dashboard or in the engine compartment).
• Remove the power window fuse(s) using a fuse puller.
• Inspect the fuse for any signs of damage (broken filament).
• Replace with a new fuse of the same amperage (typically 15A).
• Reinstall the fuse and reconnect the battery terminal.

3. Inspect and Test the Power Window Switch

• Remove the door panel to access the power window switch.
• Disconnect the switch connector.
• Use a multimeter to check for continuity across the switch terminals while pressing the switch.
• If the switch does not show continuity, replace it with a new switch.

4. Inspect the Window Motor

• With the door panel still removed, locate the power window motor.
• Disconnect the motor’s electrical connector.
• Test the motor with a direct power supply (battery) to see if it operates.
• If the motor does not work, replace it with a new power window motor.

5. Reassemble

• Reattach the door panel securely, ensuring all clips and screws are in place.
• Reconnect the negative battery terminal.