BMS-A142
BMS_a142_SW_Isolation_Degradation
What does BMS-A142 mean?
Tesla alert code in the Battery Management System (BMS) module. HV isolation is approaching a level too low for the vehicle to operate HV isolation is low, but above the sufficient level for vehicle operation Increase isolation resistance between HV system and vehicle chassis May indicate coolant leakage. Brick instability may be observed (a020) BMS does not have valid data for one or more brick voltages
Original Description
HV isolation is approaching a level too low for the vehicle to operate HV isolation is low, but above the sufficient level for vehicle operation Increase isolation resistance between HV system and vehicle chassis May indicate coolant leakage. Brick instability may be observed (a020) BMS does not have valid data for one or more brick voltages
Severity Notes
BMS-A142 is an Alert in the Battery Management System system. It is generally safe to continue driving, but have it checked at your next scheduled service.