how to fix the intermittent wipers not working on my Tesla Model S Original (2012-2020)?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

549 words

Problem Statement

Learn how to diagnose and fix intermittent wipers on Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the vehicle's battery before working on electrical components.
•Ensure the vehicle is parked on a flat surface and is secure before beginning work.

Symptoms

•Intermittent wiper setting does not activate
•Wipers operate only at full speed or not at all
•No response from wiper control stalk
•Wiper fluid may not spray when wipers are activated
•Dashboard warnings related to wiper system may be present

Diagnostic Steps

1
Inspect the wiper control stalk for physical damage or wear.
2
Use the vehicle's touchscreen to check for software updates and install if available.
3
Scan the vehicle’s onboard diagnostics using an OBD-II scanner for any fault codes related to the wiper system.
4
Check the fuses related to the windshield wipers in the fuse box for any blown fuses.
5
Test the wiper motor by connecting it directly to a power source to verify functionality.
6
Inspect the wiring harness for any signs of damage or corrosion.

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
•Torx screwdriver set
•Socket set
•Multimeter

Parts Required

•New wiper control stalk (if necessary)
•New wiper motor (if necessary)
•Replacement fuses (if blown)

Related Faults

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Diagnostic Steps

1
Inspect the wiper control stalk for physical damage or wear.
2
Use the vehicle's touchscreen to check for software updates and install if available.
3
Scan the vehicle’s onboard diagnostics using an OBD-II scanner for any fault codes related to the wiper system.
4
Check the fuses related to the windshield wipers in the fuse box for any blown fuses.
5
Test the wiper motor by connecting it directly to a power source to verify functionality.
6
Inspect the wiring harness for any signs of damage or corrosion.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle’s 12V battery to ensure safety during repairs.

2. Inspect and Replace the Wiper Control Stalk

Sub-steps:
1. Remove the steering column cover using a Torx screwdriver.
2. Disconnect the connector for the wiper control stalk.
3. Remove the wiper control stalk from its mounting.
4. Replace with a new wiper control stalk (if defective).

3. Replace Wiper Motor (if defective)

Sub-steps:
1. Remove the wiper arms by loosening the retaining nuts with a socket set.
2. Remove the cowl panel by unscrewing the fasteners and lifting it off.
3. Disconnect the electrical connector from the wiper motor.
4. Remove the mounting bolts of the wiper motor using a socket set.
5. Install the new wiper motor and reattach the bolts.
6. Reconnect the electrical connector.

4. Inspect and Replace Fuses

Sub-steps:
1. Locate the fuse box according to the owner's manual.
2. Identify the wiper motor fuse and remove it.
3. Inspect the fuse; replace it if blown with a fuse of the same amperage.

5. Reassemble Components

Sub-steps:
1. Reattach the cowl panel and secure it with screws.
2. Reinstall the wiper arms, ensuring proper alignment and torque specifications.
3. Reconnect the steering column cover.