my Tesla Model S Plaid/Refresh (2021-present) interior lights stay on when doors are closed

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

434 words

Problem Statement

Learn how to diagnose and fix the issue of interior lights staying on in Tesla Model S Plaid. 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 12V battery before working on electrical components to prevent shocks or shorts.

Symptoms

•Interior lights remain on after closing doors
•Door ajar warning message on the dashboard
•Battery drain observed due to lights staying on
•Possible malfunction of door locking mechanism
•Intermittent flickering of lights when driving

Diagnostic Steps

1
Inspect each door for physical damage or obstruction that may prevent proper closure.
2
Check the door latch mechanism for proper operation and engagement.
3
Use the vehicle's touchscreen to access the 'Lighting' settings and ensure there are no changes that affect interior light behavior.
4
Run a diagnostic scan using Tesla's service mode to check for any error codes related to door sensors.
5
Visually inspect the wiring and connectors associated with door sensors for signs of wear or damage.

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

•Multimeter
•Screwdrivers
•Trim removal tools
•Silicone-based lubricant

Parts Required

•Door sensor
•Door latch assembly

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Diagnostic Steps

1
Inspect each door for physical damage or obstruction that may prevent proper closure.
2
Check the door latch mechanism for proper operation and engagement.
3
Use the vehicle's touchscreen to access the 'Lighting' settings and ensure there are no changes that affect interior light behavior.
4
Run a diagnostic scan using Tesla's service mode to check for any error codes related to door sensors.
5
Visually inspect the wiring and connectors associated with door sensors for signs of wear or damage.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Ensure the vehicle is parked on a flat surface and the ignition is off.
Disconnect the 12V battery to avoid any electrical shorts.

2. Inspect Door Sensors

Remove the interior door panel to access the door sensor.
Using a multimeter, check for continuity in the door sensor circuit.
- Tools Required: Multimeter, screwdrivers, trim removal tools.
If the sensor is faulty, replace it with a new one.
- Parts Required: Door sensor for the affected door.

3. Test Door Latch Mechanism

Inspect the door latch for any debris or malfunction.
Lubricate the latch mechanism with a silicone-based lubricant.
If the latch is damaged, replace it.
- Parts Required: Door latch assembly.

4. Reassemble and Reconnect

Reinstall the interior door panel securely.
Reconnect the 12V battery.
Ensure all clips and screws are properly fastened.