PCS2_a149 — Buck Boost Fault
Full alert identifier: PCS2_a149_buckBoostFault
Alert description
The Power Conversion System (PCS) is unable to regulate internal voltage rails.
Potential impact
DCDC and AC Charging may be limited or unavailable.
Set condition
The buck-boost converter did not reach the desired voltage.
Clear condition
The buck-boost converter voltage reaches the desired voltage.
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 |
|---|---|
Buck Boost Ramp Target
PCS2_
|
V |
| Signal | Unit |
|---|---|
Buck Boost 18 V Leaky Bucket Fault
PCS2_
|
— |
Buck Boost 18 VOV Fault
PCS2_
|
— |
Buck Boost 18 VUV Cmpss Fault
PCS2_
|
— |
Buck Boost Cmpss Fault Count
PCS2_
|
— |
Buck Boost Input OV Fault
PCS2_
|
— |
Buck Boost LVOV Cmpss Fault
PCS2_
|
— |
Buck Boost LVUV Cmpss Fault
PCS2_
|
— |
Buck Boost Permanent Fault
PCS2_
|
— |
Show 2 more fields
| Signal | Unit |
|---|---|
Buck Boost Ramp Fault Count
PCS2_
|
— |
Buck Boost Retry Prevented Fault
PCS2_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PCS2_a149.