VCLEFT_a194_DCDCNotSupportingLVBus
Electrical system power reduced
What does the VCLEFT_a194_DCDCNotSupportingLVBus alert mean?
The low voltage (LV) bus and LV battery are not adequately supported by the power conversion system (PCS).
What you'll see in your Tesla
- Electrical system power reduced
- Vehicle may shut down unexpectedly
What triggers it
There is 0.5V or greater difference between the PCS voltage and the LV battery voltage.
When it clears
There is less than 0.5V difference between the PCS voltage and the LV battery voltage.
Potential impact
The low voltage electrical system cannot continue to power all vehicle features when the LV bus is not adequately supported. It may be necessary to shed some vehicle electrical loads by cutting power to less essential electronic control units (ECUs), and another alert will be present to indicate that condition. Vehicle may be unable to drive or continue driving, with another alert present to indicate that condition.
Affected models
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