PCS-A075
PCS_a075_hvBusDischargeTimeout
Also written as PCS_A075 / PCS A075 / PCS_a075_hvBusDischargeTimeout / pcs_a075_hvbusdischargetimeout
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does PCS-A075 mean?
Tesla alert code in the Power Conversion System (PCS) module. PCS DCDC timed out when attempting to discharge HV bus DCDC converter timed out when attempting to discharge HV bus Inability to perform vehicle precharge, CHAdeMO and GB DC compatibility may be impacted Input voltage measurement changed too much between switching cycles (only active in phase A) Charger AC input voltage changed too much between switching cycles Charger input line over voltage Charger AC input voltage peak level exceeds maximum input voltage peak threshold Reduced AC charge rate or inability to AC charge, possibly due to incompatible grid PCS DCDC temperature sensor is reporting irrational value DCDC converter temperature is outside expected range for more than one second DCDC converter temperature is within expected range Reduced available DCDC output power PCS DCDC HV bus voltage reading differs from HVP HV bus voltage reading by an excessive amount DCDC converter high voltage bus voltage sensor mismatches high voltage processor's sensed value on CAN for more than three seconds DCDC converter high voltage bus voltage sensor matches high voltage processor's sensed value on CAN for more than 500ms
Original Description
PCS DCDC timed out when attempting to discharge HV bus DCDC converter timed out when attempting to discharge HV bus Inability to perform vehicle precharge, CHAdeMO and GB DC compatibility may be impacted Input voltage measurement changed too much between switching cycles (only active in phase A) Charger AC input voltage changed too much between switching cycles Charger input line over voltage Charger AC input voltage peak level exceeds maximum input voltage peak threshold Reduced AC charge rate or inability to AC charge, possibly due to incompatible grid PCS DCDC temperature sensor is reporting irrational value DCDC converter temperature is outside expected range for more than one second DCDC converter temperature is within expected range Reduced available DCDC output power PCS DCDC HV bus voltage reading differs from HVP HV bus voltage reading by an excessive amount DCDC converter high voltage bus voltage sensor mismatches high voltage processor's sensed value on CAN for more than three seconds DCDC converter high voltage bus voltage sensor matches high voltage processor's sensed value on CAN for more than 500ms
Affected Tesla Models
What You May Notice
- Power Conversion System alert: PCS DCDC timed out when attempting to discharge HV bus DCDC converter timed out when attempting to discharge HV bus Inab
- DC-DC converter issue may affect 12V system (lights, accessories)
- Alert shown in the Tesla app
How to Diagnose and Resolve
- 1 Reboot the vehicle
- 2 Check if 12V accessories (lights, door handles) are behaving normally
- 3 Schedule a Tesla Service appointment for PCS inspection
Severity Notes
PCS-A075 is an Alert in the Power Conversion System system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.