VCFRONT-A196
VCFRONT_a196_discnctd12VBattery
What does VCFRONT-A196 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. The low voltage (LV) battery is disconnected. No current flow detected to / from the low voltage (LV) battery for an extended time period. Current flow detected to / from the low voltage (LV) battery. Loss of support from the low voltage (LV) battery, so the vehicle electrical system is only supported via the power conversion system (PCS). Some vehicle features may be unavailable due to load shedding. There should be another alert present to indicate this. Closing contactors and bringing up high voltage is not allowed because of a firmware mismatch. An ECU Mismatch is preventing HV from coming up. Firmware has successfully updated on the vehicle. Charging the high voltage battery is blocked, the vehicle is running off the 12V battery.
Original Description
The low voltage (LV) battery is disconnected. No current flow detected to / from the low voltage (LV) battery for an extended time period. Current flow detected to / from the low voltage (LV) battery. Loss of support from the low voltage (LV) battery, so the vehicle electrical system is only supported via the power conversion system (PCS). Some vehicle features may be unavailable due to load shedding. There should be another alert present to indicate this. Closing contactors and bringing up high voltage is not allowed because of a firmware mismatch. An ECU Mismatch is preventing HV from coming up. Firmware has successfully updated on the vehicle. Charging the high voltage battery is blocked, the vehicle is running off the 12V battery.
Severity Notes
VCFRONT-A196 is an Alert in the Vehicle Controller Front system. It is generally safe to continue driving, but have it checked at your next scheduled service.