how to fix the windshield wipers not working on my Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-3 hours

Time

medium

Difficulty

high

Severity

3 min read

543 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix windshield wipers not working on Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to avoid shock or shorts.
•Allow the vehicle to cool down before working on any components.

Symptoms

•Windshield wipers do not respond to control inputs
•Wiper control stalk does not produce any sound or movement
•No indication of wiper motor activation (e.g., humming sound)
•Wiper fluid may not spray when activated
•Dashboard warning lights related to wipers may be illuminated

Diagnostic Steps

1
Inspect the wiper fuse for continuity using a multimeter.
2
Check the wiper control stalk for proper operation using an OBD-II scanner to read error codes.
3
Test the wiper motor by applying direct power to it to verify if it operates.
4
Inspect wiring harness for any visible damage or disconnections.
5
Ensure that the windshield wiper fluid reservoir is full and the pump is functioning.

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
•OBD-II scanner
•Screwdriver set
•Pliers
•Fuse puller

Parts Required

•Wiper motor (if defective)
•Wiper control stalk (if defective)
•Wiper fuse (if blown)

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Diagnostic Steps

1
Inspect the wiper fuse for continuity using a multimeter.
2
Check the wiper control stalk for proper operation using an OBD-II scanner to read error codes.
3
Test the wiper motor by applying direct power to it to verify if it operates.
4
Inspect wiring harness for any visible damage or disconnections.
5
Ensure that the windshield wiper fluid reservoir is full and the pump is functioning.

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the negative battery terminal to prevent electrical shorts.
Ensure the vehicle is parked on a level surface.

2. Inspect and Replace Wiper Fuse

Locate the fuse box, typically under the dashboard or in the trunk.
Identify the wiper fuse using the diagram on the cover.
Remove the fuse using a fuse puller or pliers.
Inspect the fuse: if it’s blown, replace it with a new fuse of the same amperage.
Reconnect the negative battery terminal.

3. Test and Replace Wiper Motor

If the fuse is intact, access the wiper motor, usually located under the cowl panel.
Disconnect the motor's electrical connector.
Using a multimeter, test for voltage at the connector when the wiper switch is activated.
If voltage is present but the motor does not operate, replace the wiper motor.
To replace, remove the mounting bolts and disconnect the wiper linkage if necessary. Install the new motor and reconnect the linkage.

4. Repair or Replace Wiper Control Stalk

If the wiper motor is functional, but the wipers still do not work, check the wiper control stalk.
Remove the steering column cover to access the stalk.
Disconnect the stalk connector and test for continuity.
If the stalk is defective, replace it with a new part by reversing the removal process.