how to fix the windshield wipers on Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

545 words

Problem Statement

Learn how to diagnose and fix malfunctioning windshield wipers on Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures 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 components to avoid shorts or shocks.

Symptoms

•Windshield wipers do not activate when switched on
•Wipers only operate in certain settings (e.g., low or high speed)
•Wipers make a grinding or squeaking noise during operation
•Wipers do not return to the resting position
•Warning message displayed on the dashboard regarding wiper malfunction

Diagnostic Steps

1
Check the windshield wiper fuse using the owner's manual to locate the appropriate fuse in the fuse box.
2
Inspect the wiper blade condition for wear or damage that may impede operation.
3
Use an OBD-II scanner to check for any error codes related to the windshield wiper system.
4
Test the wiper motor by applying direct power to it to see if it operates.
5
Inspect the wiper linkage for any signs of disconnection or damage.
6
Check the wiper switch for proper functionality and continuity.

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
•Flathead screwdriver

Parts Required

•Replacement wiper blades
•Replacement wiper motor (if needed)

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Symptoms

•Windshield wipers do not activate when switched on

•Wipers only operate in certain settings (e.g., low or high speed)

•Wipers make a grinding or squeaking noise during operation

•Wipers do not return to the resting position

•Warning message displayed on the dashboard regarding wiper malfunction

Diagnostic Steps

1
Check the windshield wiper fuse using the owner's manual to locate the appropriate fuse in the fuse box.
2
Inspect the wiper blade condition for wear or damage that may impede operation.
3
Use an OBD-II scanner to check for any error codes related to the windshield wiper system.
4
Test the wiper motor by applying direct power to it to see if it operates.
5
Inspect the wiper linkage for any signs of disconnection or damage.
6
Check the wiper switch for proper functionality and continuity.

Solution

1. Preparation

Gather tools: socket set, multimeter, flathead screwdriver, and replacement parts if needed.
Park the vehicle on a flat surface and turn off the ignition.

2. Inspect and Replace Wiper Blades

Remove the old wiper blades:
- Lift the wiper arm away from the windshield.
- Press the tab on the wiper blade connector and slide the blade off the arm.
Install new wiper blades:
- Align the new wiper blade with the connector.
- Slide the blade onto the arm until it clicks into place.
Repeat for the other wiper blade.

3. Replace the Wiper Motor (if necessary)

Disconnect the battery:
- Remove the negative terminal using a socket wrench.
Access the wiper motor:
- Remove the interior cowl panel by unscrewing the fasteners and lifting it off.
Disconnect the electrical connector from the wiper motor.
Remove the wiper motor:
- Unscrew the mounting bolts holding the motor in place.
- Carefully pull the motor out of its housing.
Install the new wiper motor:
- Position the new motor in place and secure it with mounting bolts.
- Reconnect the electrical connector.
Reinstall the cowl panel and secure it with screws.

4. Test the Wiper System

Reconnect the battery by securing the negative terminal.
Turn on the ignition and test the wipers for proper operation in all settings.