my Tesla Model S Plaid/Refresh (2021-present) won't start and just clicks, what should I do?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

553 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 diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the negative battery terminal first to avoid short circuits.
•Allow the vehicle's systems to power down before working on electrical components.

Symptoms

•Clicking sound when attempting to start the vehicle
•Dashboard lights flickering or dim
•No engine crank or turnover
•Possible 'battery low' warning on the display
•Power accessories (lights, radio) may function intermittently

Diagnostic Steps

1
Check the 12V battery voltage using a multimeter; it should be above 12.4 volts.
2
Inspect the 12V battery terminals for corrosion or loose connections.
3
Attempt to jump-start the vehicle using jumper cables or a jump starter.
4
Verify that the vehicle's main battery is charged; check the battery status via the Tesla app.
5
Use the Tesla diagnostic system to check for any error codes related to the battery or starting system.

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
•Jumper cables
•Socket set

Parts Required

•12V battery (if replacement is necessary)

Related Faults

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Diagnostic Steps

1
Check the 12V battery voltage using a multimeter; it should be above 12.4 volts.
2
Inspect the 12V battery terminals for corrosion or loose connections.
3
Attempt to jump-start the vehicle using jumper cables or a jump starter.
4
Verify that the vehicle's main battery is charged; check the battery status via the Tesla app.
5
Use the Tesla diagnostic system to check for any error codes related to the battery or starting system.

Solution

1. Preparation

Gather necessary tools: multimeter, jumper cables, and a socket set.
Ensure the vehicle is in "Park" and the ignition is turned off.
If using jumper cables, make sure both vehicles are turned off before connecting.

2. Check and Replace the 12V Battery

Access Battery Compartment
- Open the front trunk (frunk) of the vehicle to access the 12V battery.
Disconnect Battery
- Use a socket set to remove the negative (-) terminal first, followed by the positive (+) terminal.
Inspect Battery
- Check for any signs of corrosion or damage on the battery terminals and casing.
Replace Battery (if necessary)
- If the battery is below 12.4 volts or damaged, replace it with a new 12V battery compatible with Tesla specifications.
Reconnect Battery
- Connect the positive (+) terminal first, followed by the negative (-) terminal.
Test Start the Vehicle
- Attempt to start the vehicle again to see if the issue persists.

3. Jump-Start the Vehicle (if necessary)

Connect Jumper Cables
- Attach the red jumper cable to the positive (+) terminal of the 12V battery in the Tesla and the other end to the positive terminal of the donor vehicle.
- Attach the black jumper cable to the negative (-) terminal of the donor vehicle and the other end to a metal ground point on the Tesla.
Start Donor Vehicle
- Start the donor vehicle and allow it to run for a few minutes.
Attempt to Start Tesla
- Try starting the Tesla while the donor vehicle is running.