my Tesla Model S Original (2012-2020) won't start just clicks what can I do

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

508 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 (2012-2020). 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 battery before working on electrical systems to prevent short circuits.
•Allow the vehicle to cool down before performing any maintenance on electrical components.

Symptoms

•Clicking sound when the start button is pressed
•Dashboard lights illuminate but engine does not crank
•Possible 'Power Reduced' warning message
•Battery charge indicator showing low charge
•No response from the key fob

Diagnostic Steps

1
Check the battery voltage using a multimeter; ensure it is above 12.4 volts.
2
Inspect the 12V battery terminals for corrosion or loose connections.
3
Verify the state of the high-voltage battery using the vehicle's display or diagnostic tool.
4
Attempt to jump-start the vehicle with a jump starter or another vehicle.
5
Scan for error codes using an OBD-II scanner or Tesla diagnostic tool.

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
•OBD-II scanner
•Jump starter
•Cleaning brush

Parts Required

•New 12V battery (if replacement is needed)

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Diagnostic Steps

1
Check the battery voltage using a multimeter; ensure it is above 12.4 volts.
2
Inspect the 12V battery terminals for corrosion or loose connections.
3
Verify the state of the high-voltage battery using the vehicle's display or diagnostic tool.
4
Attempt to jump-start the vehicle with a jump starter or another vehicle.
5
Scan for error codes using an OBD-II scanner or Tesla diagnostic tool.

Solution

1. Preparation

Tools Required: Multimeter, OBD-II scanner, jump starter, cleaning brush.
Ensure the vehicle is in park and the key fob is within range.
Disconnect the 12V battery negative terminal to prevent electrical short circuits.

2. Inspect and Clean Battery Connections

Sub-steps:
1. Remove the plastic cover from the 12V battery.
2. Check the positive and negative battery terminals for corrosion.
3. Clean any corrosion using a mixture of baking soda and water with a wire brush.
4. Tighten any loose connections securely.

3. Test and Replace the 12V Battery (if necessary)

Sub-steps:
1. Reconnect the 12V battery negative terminal.
2. Use the multimeter to measure the voltage again; if it reads below 12.4 volts, consider replacing the battery.
3. Remove the old battery by disconnecting the terminals (negative first, then positive).
4. Install the new 12V battery by connecting the positive terminal first, followed by the negative terminal.
5. Reinstall the protective cover.

4. Attempt to Jump-Start the Vehicle

Sub-steps:
1. Connect the jump starter or another vehicle's battery to the 12V battery terminals (positive to positive, negative to negative).
2. Allow the vehicle to charge for several minutes.
3. Attempt to start the vehicle; if it starts, let it run for a while to recharge the battery.