how to fix my Tesla Model S Plaid/Refresh (2021-present) that won't start just clicks

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

524 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 starting issues 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 12V battery before working on electrical components.
•Ensure the vehicle is in 'Park' mode before performing any tests or repairs.

Symptoms

•Clicking sound when the start button is pressed
•Dashboard lights illuminate but engine does not crank
•No response from the electric motor
•Possible error message on the display indicating low battery
•Accessory power may still function (lights, infotainment)

Diagnostic Steps

1
Check the 12V battery voltage using a multimeter; it should be above 12.4 volts.
2
Inspect the 12V battery connections for corrosion or loose terminals.
3
Use the Tesla app or vehicle display to check for any notifications or error codes.
4
Test the main battery pack's state of charge; ensure it is sufficiently charged.
5
Verify that the vehicle is not in 'Tow Mode' or any other low-power mode.
6
Check for any software updates that may need to be installed.

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
•Basic hand tools (screwdrivers, pliers)

Parts Required

•Replacement 12V battery (if necessary)

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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 connections for corrosion or loose terminals.
3
Use the Tesla app or vehicle display to check for any notifications or error codes.
4
Test the main battery pack's state of charge; ensure it is sufficiently charged.
5
Verify that the vehicle is not in 'Tow Mode' or any other low-power mode.
6
Check for any software updates that may need to be installed.

Solution

1. Preparation

Gather necessary tools: multimeter, socket set, and basic hand tools.
Ensure the vehicle is in a safe location, and engage the parking brake.

2. Inspect and Test the 12V Battery

Sub-steps:
1. Open the front trunk to access the 12V battery compartment.
2. Disconnect the negative terminal first, followed by the positive terminal.
3. Use the multimeter to measure the battery voltage.
  - If voltage is below 12.4V, the battery may need replacement.
4. Clean the battery terminals using a wire brush if corrosion is present.
5. Reconnect the terminals (positive first, then negative) and ensure they are tight.

3. Charging or Replacing the 12V Battery

Sub-steps:
1. If the 12V battery is low, connect a smart charger to the battery for a full charge.
2. If the battery is faulty (below 12V after charging), replace it with a new 12V battery compatible with Tesla.
3. Install the new battery by connecting the positive terminal first, followed by the negative.
4. Check the battery's voltage one more time after installation.

4. Check Main Battery Pack

Sub-steps:
1. Ensure the main battery pack is charged. If not, connect the vehicle to a charging station.
2. Monitor the charging status through the Tesla app.
3. If the main battery is fully charged and the problem persists, consider contacting Tesla service.