my Tesla Model S won't start just clicks what should I do

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-3 hours

Time

medium

Difficulty

high

Severity

3 min read

499 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. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12V battery before working on electrical systems to prevent shock or short circuits.

Symptoms

•Clicking noise when the start button is pressed
•No engine turnover or start-up
•Dashboard lights may illuminate but remain dim
•Electric systems may show signs of reduced power
•Possible error messages related to battery or power management

Diagnostic Steps

1
Check the 12V battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect the battery terminals for corrosion or loose connections.
3
Verify the state of charge of the main battery through the Tesla mobile app or onboard display.
4
Perform a visual inspection of the contactors and fuses related to the starting system.
5
Check for any warning messages or alerts displayed on the dashboard.

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
•10mm socket and wrench
•Battery charger
•Socket set
•Wire brush
•Fuse puller
•Replacement fuses

Parts Required

•Replacement 12V battery
•Replacement fuses

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the 12V battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect the battery terminals for corrosion or loose connections.
3
Verify the state of charge of the main battery through the Tesla mobile app or onboard display.
4
Perform a visual inspection of the contactors and fuses related to the starting system.
5
Check for any warning messages or alerts displayed on the dashboard.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is in a safe location and parked on a level surface.
Disconnect the 12V battery for safety before proceeding with any electrical work.

2. Test and Replace 12V Battery

Sub-steps:
1. Use a multimeter to measure the voltage of the 12V battery.
2. If the voltage is below 12.4V, recharge the battery using an appropriate charger or replace it if it fails to hold a charge.
3. Reconnect the battery terminals, ensuring they are tight and free of corrosion.

Tools Required:

Multimeter
10mm socket and wrench
Battery charger (if applicable)

3. Inspect and Repair Main Battery Connections

Sub-steps:
1. Open the rear trunk and locate the main battery connections.
2. Inspect the connections for looseness or corrosion.
3. Tighten any loose connections and clean any corrosion with a wire brush.

Tools Required:

Socket set
Wire brush

4. Check and Replace Fuses/Contactors

Sub-steps:
1. Locate the fuse box and inspect for blown fuses, especially those related to the starting system.
2. Replace any blown fuses with the same amperage rating.
3. Check the contactors for proper operation and replace if necessary.

Tools Required:

Fuse puller
Replacement fuses