my Tesla Model S Original (2012-2020) wipers stopped working in the middle of a storm, what to do?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-3 hours

Time

medium

Difficulty

high

Severity

3 min read

556 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 wiper malfunction in 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 systems to prevent shock or short circuits.
•Ensure the vehicle is in a stable position and cannot roll while performing repairs.

Symptoms

•Windshield wipers do not activate
•Wiper control stalk unresponsive
•No sounds from wiper motor when activated
•Wiper malfunction warning on dashboard
•Inability to clear windshield during rain

Diagnostic Steps

1
Check the wiper control settings on the touchscreen to ensure they are set correctly.
2
Inspect the wiper blade assembly for any physical damage or obstructions.
3
Use an OBD-II scanner to check for error codes related to the wiper system.
4
Verify the fuse for the wiper system in the fuse box; replace if blown.
5
Test the wiper motor by applying direct power to see if it operates.
6
Inspect the wiring harness for any signs of damage or disconnection.

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 or needle-nose pliers
•Basic hand tools (screwdrivers, pliers)

Parts Required

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

Related Faults

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Diagnostic Steps

1
Check the wiper control settings on the touchscreen to ensure they are set correctly.
2
Inspect the wiper blade assembly for any physical damage or obstructions.
3
Use an OBD-II scanner to check for error codes related to the wiper system.
4
Verify the fuse for the wiper system in the fuse box; replace if blown.
5
Test the wiper motor by applying direct power to see if it operates.
6
Inspect the wiring harness for any signs of damage or disconnection.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and turned off.
Disconnect the 12V battery for safety.

2. Inspect and Replace Fuse

Tools Required: Fuse puller or needle-nose pliers.
Locate the fuse box, usually found under the dashboard or in the front trunk area.
Identify the wiper fuse (refer to the owner's manual for fuse location).
Remove the fuse using the puller and inspect it; if it’s blown, replace it with a new fuse of the same amperage.

3. Check and Secure Wiring

Tools Required: Multimeter, basic hand tools (screwdrivers, pliers).
Inspect the wiring harness connected to the wiper motor for any disconnections or damage.
Use a multimeter to test for continuity in the wiring.
Repair or replace any damaged wires as necessary.

4. Test and Replace Wiper Motor (if needed)

Tools Required: Socket set, multimeter, wiring connectors.
If the motor is suspected to be faulty, disconnect the wiring harness from the wiper motor.
Apply direct battery voltage to the motor terminals to check functionality.
If the motor does not operate, remove it by unscrewing the mounting bolts and replace it with a new motor.
Reconnect the wiring harness and secure the motor back in place.

5. Reassemble and Reconnect Battery

Ensure all components are secured and that there are no tools left in the engine bay.
Reconnect the 12V battery.
Test the wiper system by activating it from the control stalk.