why do my Toyota Corolla E170 (2013-2019) wipers not work on certain settings?

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

504 words

Problem Statement

Learn how to diagnose and fix wiper issues in 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 battery before working on electrical systems.
•Use caution when working near moving parts during testing.

Symptoms

•Wipers do not activate on low speed setting
•Wipers do not activate on high speed setting
•Wipers work only on the intermittent setting
•Wiper washer fluid does not spray
•Wipers make a clicking or grinding noise when trying to operate

Diagnostic Steps

1
Inspect the wiper switch for physical damage or wear.
2
Use an OBD-II scanner to check for any body control module error codes.
3
Verify the wiper motor operation by applying direct power to it.
4
Check the wiper relay for continuity and proper operation.
5
Inspect the wiring harness for any signs of damage or corrosion.
6
Test the intermittent wiper settings and their corresponding relay or module function.

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

•Socket set
•Multimeter
•Puller tool
•Electrical contact cleaner

Parts Required

•Wiper switch (if faulty)
•Wiper relay (if faulty)
•Wiper motor (if faulty)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the wiper switch for physical damage or wear.
2
Use an OBD-II scanner to check for any body control module error codes.
3
Verify the wiper motor operation by applying direct power to it.
4
Check the wiper relay for continuity and proper operation.
5
Inspect the wiring harness for any signs of damage or corrosion.
6
Test the intermittent wiper settings and their corresponding relay or module function.

Solution

1. Preparation

Gather tools and parts.
Disconnect the battery to prevent electrical shock.
Ensure the vehicle is on a flat surface and the wipers are in the "off" position.

2. Inspect and Replace the Wiper Switch

Remove the steering column covers using a socket set.
Disconnect the wiper switch connector.
Test the wiper switch with a multimeter to ensure it is functioning correctly.
If faulty, replace the switch by reversing the removal steps.

3. Check and Replace the Wiper Relay

Locate the wiper relay in the fuse box.
Remove the relay and test it for continuity with a multimeter.
Replace the relay if it is found to be defective.
Reinstall the relay into the fuse box.

4. Inspect and Test the Wiper Motor

Remove the wiper arms using a puller tool.
Disconnect the wiper motor connector.
Apply direct 12V power to the motor to check for operation.
If the motor does not work, replace it by removing the mounting bolts and installing a new motor.

5. Inspect the Wiring Harness

Visually inspect the wiring harness for any frays or corrosion.
Clean any corroded connectors with electrical contact cleaner.
Repair any damaged wires with appropriate automotive wire and connectors.