VCFRONT-A165
VCFRONT_a165_unxpctdEFuseLckout
What does VCFRONT-A165 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. The port expanders on the front controller are inhibitted because there is voltage on the eFuse lockout circuit. Voltage detected on the lockout circuit when the right controller hasn't reported that the lockout circuit is active. When there is no longer voltage on the lockout circuit. Many vehicle functions will not be operational, OTA's will fail. The front vehicle controller has detected a problem with the power conversion system circuit. The front louver is broken and should be replaced. HVAC cabin cooling (air conditioning) and powertrain performance may be limited. Louver fails the calibration range check after 5 calibration cycles due to over-travel Louver is able to calibrate and reach target. The motor cannot reach the target RPM. HVAC cabin cooling (air conditioning) and powertrain performance may be limited The motor RPM is incapable of reaching the target RPM for some time. The motor RPM reaches its target. The thermal fan will not run. HVAC cabin cooling (air conditioning) and powertrain performance may be limited. A reset will occur to attempt to clear the fault.
Original Description
The port expanders on the front controller are inhibitted because there is voltage on the eFuse lockout circuit. Voltage detected on the lockout circuit when the right controller hasn't reported that the lockout circuit is active. When there is no longer voltage on the lockout circuit. Many vehicle functions will not be operational, OTA's will fail. The front vehicle controller has detected a problem with the power conversion system circuit. The front louver is broken and should be replaced. HVAC cabin cooling (air conditioning) and powertrain performance may be limited. Louver fails the calibration range check after 5 calibration cycles due to over-travel Louver is able to calibrate and reach target. The motor cannot reach the target RPM. HVAC cabin cooling (air conditioning) and powertrain performance may be limited The motor RPM is incapable of reaching the target RPM for some time. The motor RPM reaches its target. The thermal fan will not run. HVAC cabin cooling (air conditioning) and powertrain performance may be limited. A reset will occur to attempt to clear the fault.
Severity Notes
VCFRONT-A165 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.