how to fix Tesla Model S Original (2012-2020) wiper motor not working

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

567 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 the non-working wiper motor on Tesla Model S (2012-2020). 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 vehicle's battery before working on electrical components to avoid short circuits.

Symptoms

•Wipers do not activate when switch is engaged
•Wiper fluid does not spray
•No unusual noises or clicks when attempting to operate wipers
•Dashboard warning lights may or may not illuminate
•Wiper arms may be stuck in a fixed position

Diagnostic Steps

1
Check the fuse for the windshield wiper system using the Tesla manual for location and specifications.
2
Use an OBD-II scanner to check for any error codes related to the wiper system.
3
Inspect the wiring harness connected to the wiper motor for any signs of damage or disconnection.
4
Perform a visual inspection of the wiper motor for any signs of corrosion or physical damage.
5
Test the wiper motor's electrical connections using a multimeter to verify voltage supply when the wiper switch is activated.
6
Check the windshield wiper control module for potential faults.

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
•Torx screwdriver set

Parts Required

•Replacement wiper motor

Related Faults

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Diagnostic Steps

1
Check the fuse for the windshield wiper system using the Tesla manual for location and specifications.
2
Use an OBD-II scanner to check for any error codes related to the wiper system.
3
Inspect the wiring harness connected to the wiper motor for any signs of damage or disconnection.
4
Perform a visual inspection of the wiper motor for any signs of corrosion or physical damage.
5
Test the wiper motor's electrical connections using a multimeter to verify voltage supply when the wiper switch is activated.
6
Check the windshield wiper control module for potential faults.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Tools Required:
- Socket set
- Multimeter
- Torx screwdriver set
Safety Warnings:
- Disconnect the vehicle's battery before working on electrical components to avoid short circuits.

2. Remove the Wiper Arms

Use a Torx screwdriver to remove the screws securing the wiper arms to the motor.
Gently lift the wiper arms off the pivot points, taking care not to damage the windshield.

3. Access the Wiper Motor

Remove the plastic cowling covering the wiper motor. This typically involves unscrewing several screws and gently prying the cover off.
Disconnect any electrical connectors attached to the wiper motor.

4. Remove the Wiper Motor

Unscrew the bolts securing the wiper motor to the vehicle frame.
Carefully pull the motor away from its mounting location and disconnect it from the wiring harness.

5. Install the New Wiper Motor

Connect the new wiper motor to the wiring harness.
Secure the motor in place with the bolts and ensure it is tightened to manufacturer specifications (usually around 10-12 Nm).
Reinstall the plastic cowling, ensuring all clips and screws are properly secured.

6. Reattach the Wiper Arms

Align the wiper arms on their pivot points and secure them with the Torx screws.
Ensure the wipers are positioned correctly (usually in the park position) before tightening the screws.

7. Test the Wipers

Reconnect the vehicle's battery.
Turn on the wipers to ensure they function correctly and check for any leaks from the wiper fluid system.