how to troubleshoot Tesla Model S Original (2012-2020) not starting just clicks

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

494 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 troubleshoot and fix starting issues in Tesla Model S (2012-2020) with clicking noise. Step-by-step guide for effective solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12-volt battery before working on electrical systems to prevent shorts.

Symptoms

•Single click sound when the start button is pressed
•No engine cranking or turning over
•Dashboard lights may flicker or dim
•"Ready to Drive" indicator does not illuminate
•Possible "Power Reduced" warning message on the screen

Diagnostic Steps

1
Check the 12-volt battery voltage using a multimeter.
2
Inspect the 12-volt battery connections for corrosion or looseness.
3
Scan the vehicle for any error codes using an OBD-II scanner specific to Tesla.
4
Verify the condition of the key fob and ensure it is functioning properly.
5
Test the main contactor to ensure it is operating correctly.
6
Ensure that the vehicle is in Park mode.

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
•Battery terminal cleaner

Parts Required

•12-volt battery (if replacement is necessary)
•Key fob battery (if replacement is necessary)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the 12-volt battery voltage using a multimeter.
2
Inspect the 12-volt battery connections for corrosion or looseness.
3
Scan the vehicle for any error codes using an OBD-II scanner specific to Tesla.
4
Verify the condition of the key fob and ensure it is functioning properly.
5
Test the main contactor to ensure it is operating correctly.
6
Ensure that the vehicle is in Park mode.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is in a safe, well-ventilated area.
Disconnect the 12-volt battery to prevent any electrical shorts while working.

2. Check and Replace the 12-Volt Battery

Sub-step 1: Remove the access panel in the frunk to access the 12-volt battery.
Sub-step 2: Disconnect the negative terminal first, followed by the positive terminal.
Sub-step 3: Use a multimeter to measure the voltage; if below 12.4V, replace the battery.
Sub-step 4: Install the new 12-volt battery, connecting the positive terminal first, then the negative terminal.
Tools Required: Multimeter, socket set

3. Inspect and Clean Battery Connections

Sub-step 1: Inspect the battery terminals for corrosion or damage.
Sub-step 2: Clean the terminals using a battery terminal cleaner or a mixture of baking soda and water.
Sub-step 3: Reconnect the terminals securely after cleaning.

4. Test Main Contactor

Sub-step 1: Locate the main contactor in the battery management system.
Sub-step 2: Use a multimeter to check for continuity; replace if it does not function as intended.
Tools Required: Multimeter

5. Key Fob Verification

Sub-step 1: Ensure the key fob has a functioning battery; replace if necessary.
Sub-step 2: Try using a spare key fob if available to rule out key fob malfunction.