how to fix the power locks not working on my Toyota Corolla E170 (2013-2019)?

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

629 words

Problem Statement

Learn how to diagnose and fix power locks not working on Toyota Corolla E170 (2013-2019). 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 components to prevent accidental shorts.
•Allow the vehicle to cool before working on any mechanical components.

Symptoms

•Power locks do not respond to the key fob.
•Power locks do not respond to the switches on the driver's door.
•Key fob LED indicator does not illuminate when buttons are pressed.
•Possible clicking sound from the door lock actuators when attempting to operate locks.
•Doors remain locked or unlocked regardless of input.

Diagnostic Steps

1
Check the key fob battery and replace if necessary.
2
Verify the door lock fuse is not blown by inspecting the fuse box.
3
Use an OBD-II scanner to check for any fault codes related to the central locking system.
4
Inspect the wiring harnesses and connectors at the door for damage or corrosion.
5
Test the door lock actuators by applying direct power to see if they function.
6
Check the driver's door switch for continuity using a multimeter.

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
•Screwdrivers (flathead and Phillips)
•Trim removal tool
•Fuse puller

Parts Required

•Key fob battery (CR2032)
•Door lock fuse (if needed)
•Door lock actuator (if faulty)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Symptoms

•Power locks do not respond to the key fob.

•Power locks do not respond to the switches on the driver's door.

•Key fob LED indicator does not illuminate when buttons are pressed.

•Possible clicking sound from the door lock actuators when attempting to operate locks.

•Doors remain locked or unlocked regardless of input.

Diagnostic Steps

1
Check the key fob battery and replace if necessary.
2
Verify the door lock fuse is not blown by inspecting the fuse box.
3
Use an OBD-II scanner to check for any fault codes related to the central locking system.
4
Inspect the wiring harnesses and connectors at the door for damage or corrosion.
5
Test the door lock actuators by applying direct power to see if they function.
6
Check the driver's door switch for continuity using a multimeter.

Solution

1. Preparation

Gather tools: screwdrivers, multimeter, OBD-II scanner, replacement fob battery (if needed).
Ensure the vehicle is parked securely with the ignition off.

2. Key Fob Battery Replacement

Remove the key fob cover using a small flathead screwdriver.
Replace the battery with a new one (typically CR2032).
Reassemble the key fob and test functionality.

3. Inspect and Replace Fuse

Locate the fuse box (usually under the dashboard or in the engine compartment).
Identify the door lock fuse (refer to the fuse diagram).
Use a fuse puller to remove the fuse and inspect for damage.
Replace the fuse if it is blown (use the same amperage).

4. Wiring and Switch Inspection

Remove the door panel to access the wiring harness.
- Use a screwdriver to remove screws holding the panel.
- Carefully pry off the panel using a trim tool.
Inspect the wiring for any signs of wear or damage.
Ensure all connectors are securely attached to the door lock actuator and switches.

5. Test and Replace Door Lock Actuators

Disconnect the actuator from the wiring harness.
Using a multimeter, check for proper voltage at the actuator connector when the switch is activated.
If no voltage is present, the issue may be in the switch or wiring.
If voltage is present but the actuator does not respond, replace the actuator:
- Remove the faulty actuator by unscrewing it from the door.
- Install the new actuator by reversing the removal process.

6. Reassemble and Test

Reinstall the door panel by aligning it with the door and securing it with screws.
Test the power locks using the key fob and door switches.