my Tesla Model 3 Highland (2024-present) wipers won’t turn off how can I fix this

Tesla Model 3 Highland (2024-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

483 words

Problem Statement

Learn how to diagnose and fix the issue of windshield wipers not turning off on Tesla Model 3 Highland. Step-by-step guide with diagnostic procedures.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components to prevent shocks or shorts.

Symptoms

•Windshield wipers continuously running
•Wiper control stalk unresponsive
•Inability to change wiper speed or mode
•No error messages displayed on the dashboard
•Possible battery drain due to wipers being left on

Diagnostic Steps

1
Check the wiper control settings on the touchscreen interface to ensure they are set to 'off.'
2
Restart the vehicle by holding down the brake pedal and pressing the gear selector stalk twice to initiate a soft reset.
3
Inspect the wiper fuse in the fuse box for any visible signs of damage or blowing.
4
Use an OBD-II scanner to check for any stored error codes related to the wiper system.
5
Manually inspect the wiper motor and wiring for any physical damage or disconnections.

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

•Screwdriver set
•Multimeter
•OBD-II scanner

Parts Required

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

Related Faults

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Diagnostic Steps

1
Check the wiper control settings on the touchscreen interface to ensure they are set to 'off.'
2
Restart the vehicle by holding down the brake pedal and pressing the gear selector stalk twice to initiate a soft reset.
3
Inspect the wiper fuse in the fuse box for any visible signs of damage or blowing.
4
Use an OBD-II scanner to check for any stored error codes related to the wiper system.
5
Manually inspect the wiper motor and wiring for any physical damage or disconnections.

Solution

1. Preparation

Tools Required:
- Screwdriver set
- Multimeter
- OBD-II scanner
Disconnect the vehicle's 12V battery to prevent any electrical shorts.

2. Inspect and Replace Wiper Fuse

Locate the fuse box, typically found in the front trunk area.
Remove the fuse cover and locate the wiper fuse.
Use a multimeter to test the fuse for continuity.
If the fuse is blown, replace it with a new fuse of the same amperage.

3. Test the Wiper Motor

Reconnect the vehicle's 12V battery.
Activate the wipers using the control stalk to see if they operate correctly.
If wipers remain on, disconnect the wiper motor connector.
Use a multimeter to check for voltage at the motor connector when wipers are activated. If voltage is present, the motor is likely faulty.

4. Replace the Wiper Motor (if necessary)

Remove the wiper arms by loosening the securing nuts and pulling them off the splines.
Unscrew the wiper motor mounting bolts and remove the old motor.
Install the new wiper motor, ensuring it is properly aligned.
Reattach the wiper arms and secure them with nuts.