why are my Toyota Corolla E170 (2013-2019) wipers not working correctly

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

581 words

Problem Statement

Learn how to diagnose and fix wiper issues in the 2013-2019 Toyota Corolla E170. 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 systems to avoid shorts.
•Allow the engine to cool before working near electrical components.

Symptoms

•Wipers not moving at all
•Wipers moving erratically or intermittently
•Wipers stuck in one position
•Wiper motor making a humming sound
•Wipers operating at incorrect speeds (too fast or too slow)
•Washer fluid not spraying

Diagnostic Steps

1
Inspect the wiper fuse in the fuse box for any signs of damage or blown fuse.
2
Check the wiper switch on the steering column for proper function using a multimeter.
3
Test the wiper motor by applying direct power to it to see if it operates.
4
Inspect the wiper linkage for any disconnection or damage.
5
Check for any obstructions on the wiper arms or windshield that may impede movement.
6
Examine the wiring harness for any visible damage or corrosion.

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
•Pliers
•Screwdriver set

Parts Required

•Wiper motor (if defective)
•Wiper switch (if defective)
•Wiper linkage (if damaged)

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Diagnostic Steps

1
Inspect the wiper fuse in the fuse box for any signs of damage or blown fuse.
2
Check the wiper switch on the steering column for proper function using a multimeter.
3
Test the wiper motor by applying direct power to it to see if it operates.
4
Inspect the wiper linkage for any disconnection or damage.
5
Check for any obstructions on the wiper arms or windshield that may impede movement.
6
Examine the wiring harness for any visible damage or corrosion.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Tools required: socket set, multimeter, pliers, screwdriver set, and possibly a replacement wiper motor or linkage.
Ensure the vehicle is parked on a level surface and the ignition is off.

2. Inspect and Replace Fuse

Locate the fuse box (usually under the dashboard or in the engine compartment).
Remove the cover and locate the wiper fuse.
Use a fuse puller or pliers to check the fuse for continuity. If blown, replace it with a fuse of the same amperage.

3. Check and Replace Wiper Switch

Remove the steering column cover using a screwdriver.
Disconnect the wiper switch connector.
Use a multimeter to test for continuity in the wiper switch. If it fails, replace the switch.
Reconnect the new switch and reassemble the steering column cover.

4. Test and Replace Wiper Motor

Disconnect the wiper motor connector.
Use the multimeter to check for voltage at the motor connector while operating the wiper switch.
If no voltage is present, trace the wiring back to the fuse and switch.
If voltage is present but the motor does not operate, replace the wiper motor.
To replace, remove the motor mounting bolts, disconnect the linkage if necessary, and install the new motor.

5. Inspect and Repair Wiper Linkage

If the wipers are not moving, check the linkage by removing the wiper arms from the shaft.
Inspect for any broken or disconnected parts.
If damaged, replace the wiper linkage assembly. Reassemble by aligning and securing the linkage to the motor and wiper arms.