why does my Tesla Model Y Current (2020-present) make a clicking noise when starting?

Tesla Model Y Current (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

497 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 during start in Tesla Model Y (2020-present). 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 negative terminal before working on the battery to prevent short circuits.
•Allow the vehicle to cool before working on electrical components.

Symptoms

•Clicking noise when attempting to start the vehicle
•Dashboard lights flickering or dimming
•No engine turnover or cranking
•Possible '12V battery low' warning on the screen
•Interior lights may dim or go out during start attempt

Diagnostic Steps

1
Check the 12V battery voltage using a multimeter; it should be above 12.4 volts for a healthy battery.
2
Inspect the battery terminals for corrosion or loose connections.
3
Verify the condition of the 12V battery; perform a load test if necessary.
4
Check for any error messages or codes using the vehicle’s onboard diagnostics.
5
Inspect the main battery connection to ensure it is secure and free of corrosion.
6
Test the starter relay and fuse 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
•Clean cloth

Parts Required

•New 12V battery (if necessary)

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Diagnostic Steps

1
Check the 12V battery voltage using a multimeter; it should be above 12.4 volts for a healthy battery.
2
Inspect the battery terminals for corrosion or loose connections.
3
Verify the condition of the 12V battery; perform a load test if necessary.
4
Check for any error messages or codes using the vehicle’s onboard diagnostics.
5
Inspect the main battery connection to ensure it is secure and free of corrosion.
6
Test the starter relay and fuse associated with the starting system.

Solution

1. Preparation

Gather necessary tools: multimeter, socket set, and clean cloth.
Ensure the vehicle is in "Park" mode and the ignition is off.

2. Battery Inspection

Remove the 12V Battery Cover:
- Use a socket set to remove the bolts securing the cover.
Check Battery Connections:
- Inspect the positive and negative terminals for corrosion. Clean them using a cloth and a mixture of baking soda and water if corroded.
- Tighten any loose connections.

3. Battery Replacement (if necessary)

Disconnect the 12V Battery:
- Use a socket to remove the negative terminal first, followed by the positive terminal.
- Safety Warning: Always disconnect the negative terminal first to prevent short circuits.
Remove the Old Battery:
- Unbolt the battery hold-down bracket and carefully lift the old battery out of the tray.
Install the New Battery:
- Place the new battery in the tray and secure it with the hold-down bracket.
- Reconnect the positive terminal first, followed by the negative terminal.

4. Testing

Reconnect Battery:
- Ensure all connections are tight and free of corrosion.
Test the Starting System:
- Attempt to start the vehicle and listen for any clicks; the vehicle should start without issue.