VCFRONT_a244 — Sleep Bypass Fault
Full alert identifier: VCFRONT_a244_sleepBypassFault
Alert description
The front vehicle controller (VCFRONT) detects a condition affecting the Sleep Bypass Buck Converter circuit, preventing the vehicle from sleeping.
Potential impact
The vehicle is unable to sleep and will consume more energy when idle, possibly becoming unresponsive / not waking as expected.
Set condition
The output voltage measured by the VCFRONT from the Sleep Bypass Buck Converter is too low to support loads during vehicle sleep.
Clear condition
The output voltage measured by the VCFRONT from the Sleep Bypass Buck Converter is within the expected operational voltage range.
Signals to check
Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.
| Signal | Unit |
|---|---|
Current
VCFRONT_
|
A |
Vbat Prot Voltage
VCFRONT_
|
V |
Voltage
VCFRONT_
|
V |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT_a244.