VCREAR_a206 — Pcs Ov Shutdown Self Test Failure
Full alert identifier: VCREAR_a206_pcsOvShutdownSelfTestFailure
Alert description
Power Conversion System (PCS) Overvoltage Shutdown protection has become active on the Rear Vehicle Controller (VCREAR).
Potential impact
PCS is unavailable due to overvoltage shutdown protection becoming active. Separate LVUnhealthy alert indicating a condition affecting low voltage (LV) electrical system will also be present.
Set condition
Overvoltage condition on 48V bus detected by VCREAR while the vehicle is in drive.
Clear condition
PCS Overvoltage Shutdown protection will be reset once the vehicle is parked and the 48V bus voltage is below 56V.
Signals to check
These diagnostic fields are associated with VCREAR_a206. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Ov Critical Shutdown Armed
VCREAR_
|
— |
Ov Critical Shutdown Dig In
VCREAR_
|
— |
Pcs Enable Feedback
VCREAR_
|
— |
Pcs Enable Line Voltage
VCREAR_
|
V |
Pcs Supporting
VCREAR_
|
— |
Pcs Supporting Valid
VCREAR_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCREAR_a206.