VCRIGHT_a255 — PTC Over Temp
Full alert identifier: VCRIGHT_a255_PTCOverTemp
Alert description
The heating, ventilation, air-conditioning (HVAC) system positive temperature coefficient (PTC) heater is experiencing an over-temperature condition and will shut off until it cools down. This may cause a reduction in HVAC heating performance.
Potential impact
There may be a reduction in heating performance for the heating, ventilation, air-conditioning (HVAC) system.
Set condition
The positive temperature coefficient (PTC) heater experienced an over-temperature condition and shut down.
Clear condition
The positive temperature coefficient (PTC) heater is no longer experiencing over-temperature condition.
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 |
|---|---|
OCP Temp
VCRIGHT_
|
degC |
PCB Temp
VCRIGHT_
|
degC |
Left IGBT Temp
VCRIGHT_
|
degC |
Right IGBT Temp
VCRIGHT_
|
degC |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCRIGHT_a255.