my Tesla Model S Plaid/Refresh (2021-present) won't start but makes a clicking sound what to do

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

509 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 a no-start condition in Tesla Model S Plaid. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the negative terminal first to avoid short circuits.
•Always use insulated tools to prevent shorting.
•Disconnect the battery before working on electrical systems to avoid electric shock.
•Ensure the vehicle is in a safe location to prevent rolling when working on it.

Symptoms

•Clicking sound when attempting to start the vehicle
•Dashboard lights may flicker or remain off
•No power to accessories (radio, lights, etc.)
•Possible error messages on the display
•Battery charge level may be low or depleted

Diagnostic Steps

1
Check the battery charge level through the Tesla app or dashboard.
2
Inspect the 12V battery status; if necessary, use a multimeter to measure voltage.
3
Look for any fault messages displayed on the touchscreen.
4
Verify if the vehicle is in 'Park' mode; if not, shift to 'Park.'
5
Examine the main battery connections for corrosion or loose connections.
6
Test the key fob battery; replace if necessary.

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
•Socket set
•Screwdriver set
•Jump starter

Parts Required

•New 12V battery compatible with Tesla Model S

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Diagnostic Steps

1
Check the battery charge level through the Tesla app or dashboard.
2
Inspect the 12V battery status; if necessary, use a multimeter to measure voltage.
3
Look for any fault messages displayed on the touchscreen.
4
Verify if the vehicle is in 'Park' mode; if not, shift to 'Park.'
5
Examine the main battery connections for corrosion or loose connections.
6
Test the key fob battery; replace if necessary.

Solution

1. Preparation

Tools Required: Multimeter, socket set, screwdriver set, jump starter (if needed)
Ensure the vehicle is in a safe, flat location and that the parking brake is engaged.

2. Check 12V Battery

Sub-steps:
1. Open the front trunk and locate the 12V battery.
2. Use a multimeter to measure the voltage; it should read above 12.4V.
3. If the voltage is low, consider jump-starting the vehicle using a jump starter.
Safety Warning: Disconnect the negative terminal first to avoid short circuits.

3. Inspect Main Battery Connections

Sub-steps:
1. Locate the main battery connection points, typically under the rear seat or trunk area.
2. Visually inspect for any loose cables or corrosion.
3. Tighten any loose connections and clean terminals if necessary.
Safety Warning: Always use insulated tools to prevent shorting.

4. Reset the Vehicle

Sub-steps:
1. Press and hold both scroll wheels on the steering wheel until the screen resets.
2. Allow the vehicle to reboot and attempt to start again.

5. Replace 12V Battery (if faulty)

Sub-steps:
1. Disconnect the negative cable first, followed by the positive cable from the old battery.
2. Remove the old battery from its tray.
3. Install the new 12V battery in reverse order and ensure all connections are secure.
Parts Required: New 12V battery compatible with Tesla Model S.