how to fix Tesla Model S Original (2012-2020) windshield wipers not working

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

627 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

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shorts.
•Allow the vehicle to cool down before working on any components near the engine.

Symptoms

•Windshield wipers do not activate when the control is engaged
•Wiper blades remain stationary on the windshield
•No sound or movement from the wiper motor
•Error message displayed on the vehicle’s touchscreen (if applicable)
•Washer fluid does not spray when activated

Diagnostic Steps

1
Check the wiper control settings on the touchscreen to ensure they are correctly set.
2
Inspect the windshield wiper fuse using the vehicle’s fuse box diagram.
3
Scan for error codes using an OBD-II scanner to identify any related issues.
4
Visually inspect the wiper motor and linkage for any signs of damage or disconnection.
5
Test the wiper motor by applying direct power to see if it operates.
6
Verify the washer fluid level and check the washer nozzle for blockages.

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
•Flathead screwdriver

Parts Required

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

Related Faults

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Diagnostic Steps

1
Check the wiper control settings on the touchscreen to ensure they are correctly set.
2
Inspect the windshield wiper fuse using the vehicle’s fuse box diagram.
3
Scan for error codes using an OBD-II scanner to identify any related issues.
4
Visually inspect the wiper motor and linkage for any signs of damage or disconnection.
5
Test the wiper motor by applying direct power to see if it operates.
6
Verify the washer fluid level and check the washer nozzle for blockages.

Solution

1. Preparation

Gather tools required: OBD-II scanner, multimeter, socket set, and a flathead screwdriver.
Ensure the vehicle is parked on a flat surface and the ignition is off.

2. Check and Replace the Wiper Fuse

Locate the Fuse Box: Check the owner’s manual for the exact location of the fuse box.
Remove the Fuse Box Cover: Use a flathead screwdriver to gently pry off the cover.
Identify the Wiper Fuse: Refer to the diagram on the fuse box cover.
Inspect the Fuse: Remove the fuse and check if the filament is broken; replace if necessary.
Replace the Cover: Reinstall the fuse box cover securely.

3. Test the Wiper Motor

Access the Wiper Motor: Remove the plastic cowl cover at the base of the windshield using a socket set.
Disconnect the Electrical Connector: Unplug the connector from the wiper motor.
Perform Voltage Test: Use a multimeter to check for voltage at the motor connector while activating the wiper control.
- If voltage is present and the motor does not operate, the motor is likely faulty.
- If no voltage is detected, further electrical diagnostics may be necessary.

4. Replace the Wiper Motor (if needed)

Remove the Wiper Assembly: Unscrew the wiper arms and remove them using a puller if necessary.
Unscrew the Motor: Remove the bolts securing the wiper motor to the vehicle.
Install the New Motor: Position the new motor and secure it with bolts to the original torque specifications (typically around 8-10 Nm).
Reconnect the Electrical Connector: Plug the motor connector back in.

5. Reassemble and Test

Reinstall Wiper Arms: Position the wiper arms back onto the motor shaft and secure them.
Replace Cowl Cover: Snap the plastic cowl cover back into place.
Test Wipers: Activate the wipers to confirm functionality.