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

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

490 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 the no-start issue 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

•Always disconnect the negative terminal before working on electrical systems.
•Ensure the vehicle is in a safe location before performing any repairs.

Symptoms

•Clicking sound when the start button is pressed
•No engine turnover or cranking
•Power windows and lights functioning intermittently
•"Vehicle Power Is Low" warning message displayed
•Possible inability to engage the gear selector

Diagnostic Steps

1
Check the vehicle's battery state using the touchscreen display.
2
Inspect the 12V battery connections for corrosion or looseness.
3
Test the 12V battery voltage with a multimeter to ensure it is above 12.4 volts.
4
Verify that the main battery pack is adequately charged through the vehicle's app or display.
5
Check for any error messages or alerts in the vehicle’s diagnostics using the touchscreen.
6
Inspect the battery management system for any faults via the Tesla service tool if available.

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
•Wire brush
•Cleaning supplies

Parts Required

•Replacement 12V battery (if needed)

Related Faults

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Diagnostic Steps

1
Check the vehicle's battery state using the touchscreen display.
2
Inspect the 12V battery connections for corrosion or looseness.
3
Test the 12V battery voltage with a multimeter to ensure it is above 12.4 volts.
4
Verify that the main battery pack is adequately charged through the vehicle's app or display.
5
Check for any error messages or alerts in the vehicle’s diagnostics using the touchscreen.
6
Inspect the battery management system for any faults via the Tesla service tool if available.

Solution

1. Preparation

Gather tools: multimeter, socket set, and cleaning supplies.
Ensure the vehicle is in "Park" mode.
Disconnect the vehicle from any charging source.

2. Inspect and Clean Battery Connections

Open the front trunk to access the 12V battery.
Using a socket set, carefully remove the negative terminal first, followed by the positive terminal.
Inspect the terminals and cables for corrosion or damage.
Clean the terminals with a wire brush and a solution of baking soda and water to neutralize corrosion.
Reconnect the positive terminal first, followed by the negative terminal, ensuring they are securely tightened.

3. Replace the 12V Battery (if necessary)

If the 12V battery voltage is below 12.4 volts after testing, it should be replaced.
Remove the old battery by disconnecting terminal connections, unbolting, and lifting it out of the tray.
Install the new battery by placing it in the tray, securing it with bolts, and reconnecting the terminals (positive first).

4. System Reset

After reconnecting the battery, perform a system reset by pressing and holding the brake pedal and the start button until the vehicle's systems reboot.
Allow the vehicle to power on completely before attempting to start.