how to troubleshoot my Toyota Corolla E140 (2006-2013) power windows not working

Solution

1. Preparation

• Tools Required: Multimeter, OBD-II scanner, socket set, screwdrivers, wiring diagram.
• Safety Warnings: Disconnect the vehicle battery before starting any electrical work.

2. Fuse Inspection

• Locate the fuse box under the dashboard or hood.
• Remove the power window fuse and inspect for continuity using a multimeter.
• If the fuse is blown, replace it with one of the same amperage.

3. Switch Inspection

• Remove the door panel using a screwdriver and trim removal tool.
• Disconnect the power window switch connector.
• Inspect the switch for damage; if necessary, replace the switch.

4. Wiring Inspection

• Using the wiring diagram, trace the wiring from the switch to the window motor.
• Check for any breaks or frays in the wiring.
• Test for voltage at the connector of the window motor while operating the switch.

5. Motor Test

• If the wiring is intact, remove the window motor from the door.
• Connect the motor directly to a power source (e.g., a car battery) to check if it operates.
• If the motor does not operate, it may need replacement.

6. Reassembly

• Once repairs are completed, reassemble the door panel carefully.
• Reconnect the battery and test the power windows to ensure they operate correctly.