how to fix the windshield wipers not working on my Toyota Highlander Fourth Generation (2020-present...

Toyota Highlander Fourth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

534 words

Problem Statement

Learn how to diagnose and fix windshield wipers not working on a Toyota Highlander (2020-present). 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.
•Allow the vehicle to cool before working on any mechanical parts.

Symptoms

•Windshield wipers do not operate when activated
•Wiper switch does not produce any audible clicks
•No movement of wipers at any speed or mode
•Washer fluid spray may or may not function
•Warning lights may illuminate on the dashboard

Diagnostic Steps

1
Inspect the wiper switch for physical damage or wear.
2
Check the fuse related to the windshield wiper system in the fuse box.
3
Test the wiper motor with a multimeter to ensure it receives power.
4
Inspect wiring harnesses for damage or disconnection.
5
Verify the wiper linkage for any disconnection or mechanical failure.
6
Check the washer fluid pump operation if it’s integrated with the wiper system.

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
•Needle-nose pliers
•Fuse puller

Parts Required

•Wiper motor (if faulty)
•Wiper fuse (if blown)
•Wiper linkage components (if damaged)

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
Check the fuse related to the windshield wiper system in the fuse box.
3
Test the wiper motor with a multimeter to ensure it receives power.
4
Inspect wiring harnesses for damage or disconnection.
5
Verify the wiper linkage for any disconnection or mechanical failure.
6
Check the washer fluid pump operation if it’s integrated with the wiper system.

Solution

1. Preparation

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

2. Inspect and Replace the Wiper Fuse

Tools Required: Fuse puller or needle-nose pliers
Locate the fuse box, typically under the dashboard or in the engine compartment.
Identify the fuse for the windshield wiper (refer to the owner's manual).
Use the fuse puller to remove the fuse and inspect it for continuity.
If blown, replace it with a fuse of the same amperage (usually 15A for wipers).

3. Test and Replace the Wiper Motor

Tools Required: Multimeter, socket set
Reconnect the battery temporarily.
Locate the wiper motor, usually under the cowl panel.
Use a multimeter to check for voltage at the motor connector while activating the wiper switch.
If no voltage is detected, trace back to the switch or wiring.
If voltage is present but the motor does not operate, remove the motor using a socket set.
Replace the wiper motor with a new one and reassemble.

4. Inspect and Repair Wiper Linkage

Tools Required: Socket set, pliers
If wipers are still non-functional, remove the wiper arms using a puller if necessary.
Inspect the wiper linkage for any disconnections or wear.
Reconnect or replace any damaged components in the linkage.
Reinstall the wiper arms securely.