VCFRONT-A164
VCFRONT_a164_eFuseLckoutMissing
What does VCFRONT-A164 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. The voltage on the lockout circuit is not at 5V when the right controller is commanding it on. The voltage read on the lockout circuit when the right controller is reporting that the lockout circuit is active is not high enough. When the lockout is de-asserted or voltage reaches >2.5V There is a risk of eFuses toggling if the front controller is reset and NVRAM doesn't work as expected.
Original Description
The voltage on the lockout circuit is not at 5V when the right controller is commanding it on. The voltage read on the lockout circuit when the right controller is reporting that the lockout circuit is active is not high enough. When the lockout is de-asserted or voltage reaches >2.5V There is a risk of eFuses toggling if the front controller is reset and NVRAM doesn't work as expected.
Severity Notes
VCFRONT-A164 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.