how to fix the wiper motor not working in my Toyota Corolla E170 (2013-2019)?

Toyota Corolla E170 (2013-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

473 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix the wiper motor not working in Toyota Corolla E170 (2013-2019). Step-by-step guide with diagnostic procedures and repair instructions.

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 shocks or shorts.
•Allow the engine to cool before working on components near the engine bay.

Symptoms

•Wipers do not operate at all
•No noise or movement from the wiper motor
•Wiper switch does not respond when activated
•Wiper fuse is intact
•No water spray from washer system

Diagnostic Steps

1
Check the wiper fuse for continuity using a multimeter.
2
Test the wiper motor directly by connecting it to a power source.
3
Inspect the wiper switch for any signs of wear or malfunction.
4
Check the wiring harness for any damage or loose connections.
5
Test the relay (if applicable) using an OBD-II scanner or 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

•Multimeter
•Socket set
•Screwdrivers

Parts Required

•Replacement wiper motor (if the original is faulty)
•Wiper arm (if damaged during removal)

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Diagnostic Steps

1
Check the wiper fuse for continuity using a multimeter.
2
Test the wiper motor directly by connecting it to a power source.
3
Inspect the wiper switch for any signs of wear or malfunction.
4
Check the wiring harness for any damage or loose connections.
5
Test the relay (if applicable) using an OBD-II scanner or multimeter.

Solution

1. Preparation

Gather tools: multimeter, socket set, screwdrivers, and a replacement wiper motor if necessary.
Ensure the vehicle is parked on a flat surface and the ignition is off.

2. Remove the Wiper Arm

Sub-step 1: Disconnect the negative battery terminal to prevent electrical shorts.
Sub-step 2: Remove the plastic cover at the base of the wiper arm (if applicable).
Sub-step 3: Use a socket set to remove the nut securing the wiper arm.
Sub-step 4: Gently pull the wiper arm off the spindle.

3. Access the Wiper Motor

Sub-step 1: Remove the cowl panel by unscrewing the retaining screws.
Sub-step 2: Disconnect any electrical connectors leading to the wiper motor.
Sub-step 3: Unbolt the wiper motor from its mounting position using a socket set.

4. Inspect and Replace Wiper Motor

Sub-step 1: Inspect the old motor for signs of damage or corrosion.
Sub-step 2: If the motor is faulty, install the new wiper motor by reversing the removal steps.
Sub-step 3: Reconnect the electrical connectors securely.

5. Reassemble Components

Sub-step 1: Reinstall the cowl panel and secure it with screws.
Sub-step 2: Reattach the wiper arm and secure it with the nut.
Sub-step 3: Replace the plastic cover, if removed.