PCS_a043_hvBusPrechargeFailure

PCS DCDC failed to precharge HV bus to the target voltage.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

Inability to precharge HV bus, inability to support 12V system, inability to drive

Description

PCS DCDC failed to precharge HV bus to the target voltage.

Cause

DCDC converter was unable to precharge HV bus when commanded to

Clear condition

DCDC converter state machine clears faults

Models

Model 3 2017-2023, Model 3 2024+, Model S 2021+, Model X 2021+, Model Y, Model Y 2025+

Visibility

service-fix

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