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my Tesla Model S Original (2012-2020) won't start and clicks when I turn the key - Tesla Model S
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my Tesla Model S Original (2012-2020) won't start and clicks when I turn the key

Tesla Model S Plaid/Refresh (2021-present)

Error Codes
1-2 hours
Time
medium
Difficulty
high
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
482 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 (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.
  • •Ensure the vehicle is in 'Park' mode and stationary before performing repairs.

Symptoms

  • •Clicking noise when the start button is pressed
  • •No engine cranking or turning over
  • •Dashboard lights may be dim or flickering
  • •Possible 'Power Reserve' message on the display
  • •Battery warning indicator illuminated

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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

Parts Required

  • •Replacement 12V battery (if faulty)
  • •Fuses (if blown)

Additional Information

Affected Component
Electrical
Estimated Time
1-2 hours
Difficulty
medium
Severity
high
Tools Required
3 items
Parts Required
2 items

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is in a safe, well-ventilated area.
  • Disconnect the 12V battery negative terminal to prevent any electrical shorts.
2. Check and Replace the 12V Battery

  • Inspect the 12V Battery:

    • Remove the access cover to the 12V battery.
    • Check the battery voltage; if under 12.4V, consider replacing it.

  • Replace the Battery:

    • Disconnect the positive terminal first, followed by the negative terminal.
    • Remove the battery hold-down bracket and lift out the old battery.
    • Install the new battery, connecting the positive terminal first, then the negative terminal.
    • Reattach the battery hold-down bracket.
3. Inspect and Replace Fuses

  • Locate the Fuse Box:

    • Access the fuse box as per the owner's manual.

  • Check Fuses:

    • Inspect the fuses related to the starting system and replace any that are blown.
4. Check and Repair Contactors/Relays
  • Inspect Contactors and Relays:
    • Open the front trunk and remove the cover to access the contactors.
    • Check for burnt or damaged contactors; replace as necessary.
5. Reconnect Battery and Test
  • Reconnect the 12V battery by tightening the terminals securely.
  • Ensure all covers are replaced properly.
  • Attempt to start the vehicle.