my Tesla Model 3 Original (2017-2023) windshield wipers won’t turn off what to do

Tesla Model 3 Highland (2024-present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

558 words

Problem Statement

Learn how to diagnose and fix windshield wipers that won't turn off in Tesla Model 3 (2017-2023). 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 components.
•Allow the vehicle to cool before accessing the wiper motor to avoid burns.

Symptoms

•Windshield wipers continuously operate regardless of switch position
•Wiper control stalk feels unresponsive or sticky
•Possible erratic wiper speed or operation
•Warning messages on the dashboard related to wipers or vehicle system
•Malfunctioning mobile app controls for wipers

Diagnostic Steps

1
Inspect the wiper control stalk for physical damage or obstruction.
2
Perform a factory reset of the vehicle's infotainment system to clear any software glitches.
3
Check for any software updates available for the vehicle.
4
Scan the vehicle’s onboard computer using a compatible OBD-II scanner for error codes related to the wiper system.
5
Verify the wiper relay operation by checking if it clicks when the wiper switch is activated.
6
Inspect the wiper motor connector for corrosion or loose connections.

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
•Screwdrivers

Parts Required

•Wiper control stalk
•Wiper relay (if necessary)
•Wiper motor (if necessary)

Related Faults

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Diagnostic Steps

1
Inspect the wiper control stalk for physical damage or obstruction.
2
Perform a factory reset of the vehicle's infotainment system to clear any software glitches.
3
Check for any software updates available for the vehicle.
4
Scan the vehicle’s onboard computer using a compatible OBD-II scanner for error codes related to the wiper system.
5
Verify the wiper relay operation by checking if it clicks when the wiper switch is activated.
6
Inspect the wiper motor connector for corrosion or loose connections.

Solution

1. Preparation

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

2. Inspect and Replace Wiper Control Stalk

Remove Steering Column Cover
- Use a screwdriver to remove screws securing the steering column cover.
- Carefully detach the cover to access the wiper control stalk.
Disconnect Wiper Control Stalk
- Locate the electrical connector for the wiper control stalk.
- Disconnect the connector by pressing the release tab and pulling it apart.
Replace with New Stalk
- Install the new wiper control stalk by connecting the electrical connector.
- Reattach the steering column cover and secure with screws.

3. Test the Wiper Relay

Locate the Relay
- Access the fuse box to locate the wiper relay based on the owner’s manual.
Test Relay Operation
- Use a multimeter to check for continuity through the relay when activated.
- If the relay is faulty, replace it with a new one.

4. Inspect and Repair Wiper Motor

Access Wiper Motor
- Remove any covers obstructing access to the wiper motor assembly.
Check Connections
- Inspect the wiring harness and connectors for any signs of damage or corrosion.
- Clean and reconnect any loose or corroded connections.
Test Motor Function
- Connect the battery directly to the wiper motor to check for operation.
- Replace the motor if it does not operate when directly powered.