Tesla Model 3 Clicking Sound and No Start
The vehicle produces a clicking sound and fails to start consistently. This typically indicates a low or failed 12V auxiliary battery, which is essential for engaging the high-voltage contactors and powering the vehicle's electronics.
Diagnosis Details
Possible Causes
12V auxiliary battery is depleted or failed (most common in Tesla Model 3).
Faulty high-voltage contactor or battery management system (BMS) issue.
Loose or corroded battery terminal connections or ground strap.
Related OBD-II Codes
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What You Should Do
Attempt to jump-start the 12V battery using the front trunk (frunk) jump posts.
If the vehicle starts, the 12V battery needs replacement.
If not, inspect for loose connections or contact a Tesla service center for high-voltage system diagnosis.
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Estimated Repair Cost
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.