Tesla Model 3 Original (2017-2023) windshield wipers not working properly, how to fix?

Tesla Model 3 Highland (2024-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

540 words

Problem Statement

Learn how to diagnose and fix windshield wipers not working on Tesla Model 3 (2017-2023). Step-by-step guide with tools and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to avoid short circuits.

Symptoms

•Windshield wipers do not move at all
•Wipers move intermittently or slowly
•Wiper controls on the stalk are unresponsive
•Wiper blades do not make full contact with the windshield
•No sound from wiper motor when activated

Diagnostic Steps

1
Check the wiper fuse for continuity using a multimeter.
2
Inspect the wiper motor connections for corrosion or loose wiring.
3
Test the wiper switch for proper operation using a multimeter.
4
Verify the wiper relay operation by swapping with a similar relay.
5
Check for any obstructions around the wiper arms or linkage.
6
Conduct a visual inspection of the wiper blades for damage or wear.

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

•Ratchet and socket set
•Multimeter
•Screwdriver set
•Pliers

Parts Required

•Wiper fuse (if blown)
•Wiper motor (if defective)
•New wiper blades (if worn)

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Diagnostic Steps

1
Check the wiper fuse for continuity using a multimeter.
2
Inspect the wiper motor connections for corrosion or loose wiring.
3
Test the wiper switch for proper operation using a multimeter.
4
Verify the wiper relay operation by swapping with a similar relay.
5
Check for any obstructions around the wiper arms or linkage.
6
Conduct a visual inspection of the wiper blades for damage or wear.

Solution

1. Preparation

Tools Required:
- Ratchet and socket set
- Multimeter
- Screwdriver set
- Pliers
Disconnect the vehicle's 12V battery to ensure safety while working on electrical components.

2. Check and Replace Fuse

Locate the fuse box, typically under the dashboard.
Remove the wiper fuse and inspect it for continuity.
If blown, replace it with a fuse of the same amperage (usually 10A).
Reconnect the battery and test the wipers again.

3. Inspect and Clean Wiper Motor Connections

Remove the wiper arms by loosening the nut at the base of each arm.
Carefully lift the wiper arms off the splines.
Access the wiper motor by removing the plastic cover in the engine bay.
Inspect the wiring harness for damage and ensure connections are tight.
Clean any corrosion from the terminals using electrical contact cleaner.

4. Test Wiper Motor

Reconnect the battery and use the multimeter to check voltage at the motor connector while activating the wipers.
If no voltage is present, trace back the wiring to the relay and switch.
If voltage is present but the motor does not run, replace the wiper motor.

5. Replace Wiper Blades

If the wiper blades are worn, remove them by pressing the release tab.
Install new wiper blades by sliding them onto the wiper arm until they click into place.
Ensure the wipers are aligned correctly on the windshield.