why does my Tesla Model S Original (2012-2020) wipers stop working suddenly

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

522 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 sudden wiper failure in 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 avoid shocks or short circuits.
•Allow the vehicle to cool if it has been running prior to inspecting components near the engine.

Symptoms

•Wipers do not respond when activated
•Intermittent wiper function stops working completely
•No noise or movement from wiper motors
•Dashboard warning messages related to wiper system
•Possible water accumulation on windshield due to non-operation

Diagnostic Steps

1
Inspect the wiper control stalk for physical damage or malfunction.
2
Use an OBD-II scanner to check for error codes related to the wiper system.
3
Check the fuse for the windshield wipers in the fuse box.
4
Examine the wiper motor connections and wiring for corrosion or loose connections.
5
Test the wiper relay for proper operation using a multimeter.
6
Inspect the wiper assembly for any obstructions or mechanical issues.

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
•Fuse puller or pliers
•Screwdriver set

Parts Required

•Wiper motor (if faulty)
•Wiper relay (if faulty)
•Replacement fuses (if blown)

Related Faults

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Diagnostic Steps

1
Inspect the wiper control stalk for physical damage or malfunction.
2
Use an OBD-II scanner to check for error codes related to the wiper system.
3
Check the fuse for the windshield wipers in the fuse box.
4
Examine the wiper motor connections and wiring for corrosion or loose connections.
5
Test the wiper relay for proper operation using a multimeter.
6
Inspect the wiper assembly for any obstructions or mechanical issues.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is turned off and parked on a level surface.
Disconnect the negative terminal of the battery to prevent electrical shock.

2. Check and Replace Fuse

Locate the fuse box, usually found under the dashboard or in the trunk.
Identify the wiper fuse using the diagram on the fuse box cover.
Remove the fuse using a fuse puller or pliers.
Inspect the fuse; if it is blown, replace it with a new fuse of the same amperage rating.
Reconnect the battery terminal.

3. Inspect and Test Wiper Motor

Access the wiper motor by removing the plastic cover at the base of the windshield.
Disconnect the wiring harness from the wiper motor.
Use a multimeter to test for voltage at the motor connector while activating the wipers.
If there is no voltage, check the wiper relay.
If voltage is present but the motor does not operate, replace the wiper motor.

4. Replace Wiper Relay (if necessary)

Locate the wiper relay in the fuse box.
Remove the relay by pulling it straight out.
Replace it with a new relay that matches the original specifications.

5. Reassemble and Test

Reattach any covers removed during the process.
Reconnect the battery terminal.
Test the wipers by activating them through the control stalk.