VCFRONT_a446 — Cabin HVAC Unavailable Context
Full alert identifier: VCFRONT_a446_cabinHVACUnavailableContext
Alert description
Condition(s) affecting the thermal management system have reduced cabin heating and/or cooling performance or made cabin heating and/or cooling unavailable.
Potential impact
Cabin heating and/or cooling performance may be limited, or cabin heating and/or cooling may be unavailable.
Set condition
May set due to many possible conditions affecting thermal management system functionality. Alert log signal data should provide information on specific condition(s).
Clear condition
Condition(s) affecting thermal management system functionality no longer detected.
Signals to check
These diagnostic fields are associated with VCFRONT_a446. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Battery Over Temp
VCFRONT_
|
— |
Comp Fault Pd High
VCFRONT_
|
— |
Comp Fault Pd Low
VCFRONT_
|
— |
Comp Fault Ps Low
VCFRONT_
|
— |
Comp Fault Refrigerant
VCFRONT_
|
— |
Comp Fault Td High
VCFRONT_
|
— |
Comp Standby Coast Down Mode
VCFRONT_
|
— |
Comp Standby Communication
VCFRONT_
|
— |
Show 33 more fields
| Signal | Unit |
|---|---|
Comp Standby HV Not Ready
VCFRONT_
|
— |
Comp Standby Low Ambient
VCFRONT_
|
— |
Comp Standby Low Disch Press
VCFRONT_
|
— |
Comp Standby Multiple Pd Cutouts
VCFRONT_
|
— |
Comp Standby Multiple Td Cutouts
VCFRONT_
|
— |
Comp Standby Refrig Not Ok
VCFRONT_
|
— |
Comp Standby Self Not Ready
VCFRONT_
|
— |
Comp Standby Showroom Mode
VCFRONT_
|
— |
Compressor State
VCFRONT_
|
— |
Coolant Sys Locked Out
VCFRONT_
|
— |
Evap Low Ps Cutout
VCFRONT_
|
— |
High Suction Superheat
VCFRONT_
|
— |
Hp Battery Load Type
VCFRONT_
|
— |
Hp Cabin Load Type
VCFRONT_
|
— |
Hp Mode
VCFRONT_
|
— |
Hvac System Fault
VCFRONT_
|
— |
Ref Sys Locked Out
VCFRONT_
|
— |
Sensor Droop Pd
VCFRONT_
|
— |
Sensor Has Offset Pd
VCFRONT_
|
— |
Sensor Has Offset Td
VCFRONT_
|
— |
Sensor Has Offset Tl
VCFRONT_
|
— |
Sensor Intermittent Pd
VCFRONT_
|
— |
Sensor Intermittent Pl
VCFRONT_
|
— |
Sensor Intermittent Ps
VCFRONT_
|
— |
Sensor Intermittent Td
VCFRONT_
|
— |
Sensor Intermittent Tl
VCFRONT_
|
— |
Sensor Intermittent Ts
VCFRONT_
|
— |
Using Modeled Pd
VCFRONT_
|
— |
Using Modeled Pl
VCFRONT_
|
— |
Using Modeled Ps
VCFRONT_
|
— |
Using Modeled Td
VCFRONT_
|
— |
Using Modeled Tl
VCFRONT_
|
— |
Using Modeled Ts
VCFRONT_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT_a446.