Tesla Model 3 alerts codes

VCFRONT_a339 / VCFRONT_a339_iboosterFastTripOCMax

Alert Description
The front vehicle controller (VCFRONT) detects the electrical current flowing through the electromechanical brake booster (iBooster) eFuse has equaled or exceeded 100A during the previous 10 milliseconds.

Potential Impact
The eFuse circuit may open (trip), interrupting power supply to iBooster and making brake functionality limited.

Set condition
The iBooster eFuse current value equals or exceeds 100A during the previous 10 milliseconds.

Clear condition
The iBooster eFuse current value remains below 100A during the subsequent 10 milliseconds.

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