PCS family
PCS_a043_hvBusPrechargeFailure
Not Available
What does the PCS_a043_hvBusPrechargeFailure alert mean?
PCS DCDC failed to precharge HV bus to the target voltage
What you'll see in your Tesla
- Not Available
What triggers it
DCDC converter was unable to precharge HV bus when commanded to
When it clears
DCDC converter state machine clears faults
Potential impact
Inability to precharge HV bus, inability to support 12V system, inability to drive
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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