why are my Tesla Model S Original (2012-2020) windshield wipers not working

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

511 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 diagnostic procedures and repair instructions.

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 prevent shock.
•Always allow the vehicle to cool down before working on mechanical components.

Symptoms

•Windshield wipers do not operate when activated
•Wiper control stalk does not respond
•No noise from wiper motor
•Wiper fluid does not spray when activated
•Dashboard warning lights related to wipers may be illuminated

Diagnostic Steps

1
Check the wiper control settings on the touchscreen to ensure they are properly configured.
2
Inspect the wiper blade assembly for any physical obstructions or damage.
3
Use an OBD-II scanner to check for any error codes related to the windshield wiper system.
4
Verify the fuse for the wiper motor by checking the fuse box for any blown fuses.
5
Test the wiper motor directly by applying power to it to see if it operates.
6
Inspect the wiring harness and connectors for any signs of damage or corrosion.

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

•OBD-II scanner
•Multimeter
•Socket set
•Fuse puller
•Wrench set

Parts Required

•Replacement wiper motor (if defective)
•Replacement fuses (if blown)

Related Faults

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Diagnostic Steps

1
Check the wiper control settings on the touchscreen to ensure they are properly configured.
2
Inspect the wiper blade assembly for any physical obstructions or damage.
3
Use an OBD-II scanner to check for any error codes related to the windshield wiper system.
4
Verify the fuse for the wiper motor by checking the fuse box for any blown fuses.
5
Test the wiper motor directly by applying power to it to see if it operates.
6
Inspect the wiring harness and connectors for any signs of damage or corrosion.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface, and the engine is off.
Disconnect the vehicle’s 12V battery to prevent electrical shock.

2. Inspect and Replace Fuses

Locate the fuse box, typically found under the dashboard on the driver’s side.
Remove the fuse for the windshield wipers using a fuse puller.
Inspect the fuse to see if it is blown; replace it if necessary with an equivalent fuse (check the owner’s manual for the correct amperage).
Reconnect the battery and test the wipers again.

3. Test and Replace the Wiper Motor

If the fuse is intact, access the wiper motor by removing the wiper arms (use a puller if necessary).
Disconnect the wiring harness from the wiper motor.
Using a multimeter, check for voltage at the motor connector when the wipers are activated.
If no voltage is present, trace back to the switch or wiring.
If voltage is present but the motor does not operate, replace the wiper motor with a new unit.

4. Reassemble the Wiper System

Reinstall the wiper arms and secure them according to manufacturer specifications.
Reconnect the battery and test the wipers to ensure proper operation.