why is my Tesla Model S Plaid/Refresh (2021-present) making a clicking noise when trying to start

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

472 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 clicking noise when starting your Tesla Model S Plaid. Step-by-step guide with diagnostic procedures 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 components to avoid shock or damage.

Symptoms

•Clicking noise from the front or rear of the vehicle
•Dashboard lights flickering or dimming
•Failure to start or turn over
•No sounds from the motor or very faint sounds
•Potential 'Battery Low' warning on the display

Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect the 12V battery connections for corrosion or looseness.
3
Verify the status of the main battery pack through the Tesla app or vehicle display.
4
Use the Tesla service mode to check for any error codes related to the battery or electrical systems.
5
Test the starter relay and fuses associated with the starting system.

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
•Wrenches

Parts Required

•12V battery (if replacement is needed)
•Starter relay (if faulty)

Related Faults

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Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect the 12V battery connections for corrosion or looseness.
3
Verify the status of the main battery pack through the Tesla app or vehicle display.
4
Use the Tesla service mode to check for any error codes related to the battery or electrical systems.
5
Test the starter relay and fuses associated with the starting system.

Solution

1. Preparation

Ensure the vehicle is in "Park" and secure.
Disconnect the 12V battery negative terminal to prevent short circuits.
Gather tools: multimeter, socket set, and wrenches.

2. Inspect and Clean Battery Connections

Step 1: Remove the cover of the 12V battery compartment.
Step 2: Use a socket set to loosen the positive and negative battery terminal bolts.
Step 3: Clean the terminals and battery posts with a wire brush to remove any corrosion.
Step 4: Reconnect the battery terminals securely and ensure they are tight.

3. Test Battery Voltage

Step 1: Reconnect the 12V battery negative terminal.
Step 2: Use a multimeter to measure the voltage across the battery terminals.
Step 3: If the voltage is below 12.4 volts, consider replacing the battery.

4. Check Starter Relay and Fuses

Step 1: Locate the fuse box, typically found in the front trunk area.
Step 2: Remove the cover and identify the starter relay and relevant fuses (refer to the owner's manual for locations).
Step 3: Inspect fuses for continuity using a multimeter or visually check for blown fuses.
Step 4: Replace any faulty fuses or relay as necessary.