SCM-F027
SCM_f027_externalIsolationLow
What does SCM-F027 mean?
Tesla fault code in the SCM (SCM) module. Alert may be shown on the supercharger while a car is charging. This alert may indicate an insulation breakdown or other loss of isolation resistance in one of the following:The DC cabling between the supercharger and the car.The DC cabling between the charge port and high voltage junction box (HVJB), If while charging, anywhere inside the vehicle's high voltage DC system.
Original Description
Alert may be shown on the supercharger while a car is charging. This alert may indicate an insulation breakdown or other loss of isolation resistance in one of the following:The DC cabling between the supercharger and the car.The DC cabling between the charge port and high voltage junction box (HVJB), If while charging, anywhere inside the vehicle's high voltage DC system.
Severity Notes
SCM-F027 is classified as a Fault, indicating a critical issue in the SCM system. Do not continue driving and contact Tesla Service immediately.