VCFRONT_a414_prechargeLVLoadReduction
Description
Low Voltage (LV) bus load reduction activated due to inability to precharge the High Voltage (HV) bus.
Condition
The vehicle controller detects HV bus precharge is unsuccessful due to low LV Bus voltage.
Clear Condition
HV bus precharge succeeds or LV bus load reduction times out.
Potential Impact
The Autopilot Electronic Control Unit (ECU), Media Control Unit (MCU), headlight, and sleep bypass LV power feeds are powered off (eFuses gating these power feeds are opened to reduce LV bus load).
Customer Facing Message 1
Not Available
Customer Facing Message 2
Not Available
Audiences
service
Models
Model 3 2017-2023;Model 3 2024+;Model Y;Model Y 2025+