how to fix the back windshield wiper not working on my Toyota Corolla E170 (2013-2019)?

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

515 words

Problem Statement

Learn how to diagnose and fix the rear windshield wiper not working on Toyota Corolla E170 (2013-2019). Step-by-step guide with tools and parts needed.

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 avoid shock.
•Allow the vehicle to cool before working on any mechanical parts to prevent burns.

Symptoms

•Rear wiper not moving when activated
•No sound or noise from the wiper motor
•Wiper blade remains stationary
•Possible water accumulation on the rear window
•Front wipers operating normally

Diagnostic Steps

1
Check the rear wiper fuse in the fuse box for continuity.
2
Inspect the rear wiper switch for proper function.
3
Test the rear wiper motor for voltage using a multimeter.
4
Examine the wiring harness for any damage or disconnections.
5
Check the rear wiper linkage for any obstructions or mechanical failure.

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
•Screwdriver set
•Pliers

Parts Required

•Rear wiper motor (if needed)
•Rear wiper switch (if needed)
•Rear wiper fuse (if blown)

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Diagnostic Steps

1
Check the rear wiper fuse in the fuse box for continuity.
2
Inspect the rear wiper switch for proper function.
3
Test the rear wiper motor for voltage using a multimeter.
4
Examine the wiring harness for any damage or disconnections.
5
Check the rear wiper linkage for any obstructions or mechanical failure.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the engine is off.
Disconnect the negative battery terminal to prevent electrical shock.

2. Check and Replace Fuse

Locate the fuse box under the dashboard or in the engine compartment.
Remove the rear wiper fuse (refer to your owner’s manual for the exact fuse location).
Inspect the fuse for any breaks in the filament.
If blown, replace with a new fuse of the same amperage.

3. Inspect Rear Wiper Switch

Remove the steering column cover using a socket set.
Access the rear wiper switch and disconnect the wiring harness.
Use a multimeter to test for continuity when the switch is activated.
If defective, replace the switch with a new component.

4. Test Rear Wiper Motor

Locate the rear wiper motor, typically found at the rear hatch.
Disconnect the motor’s wiring harness.
Use a multimeter to check for voltage at the connector while activating the rear wiper switch.
If voltage is present and the motor does not operate, replace the rear wiper motor.

5. Inspect Wiring and Linkage

Visually inspect the wiring harness leading to the rear motor for any signs of wear, fraying, or disconnection.
Check the linkage mechanism that connects the motor to the wiper arm for any obstructions or mechanical failure.
If the linkage is broken or disconnected, replace or reattach as necessary.