PSFA_a173 — Thermal Derating
Full alert identifier: PSFA_a173_thermalDerating
Alert description
Steering system may be reducing power and functionality to prevent overheating, due to higher than nominal system temperature detected
Potential impact
Torque output may be reduced, and steering system may have reduced performance
Set condition
When part of steering system is detected to be close to its overheating limit
Clear condition
Once Steering system cools back down
Signals to check
These diagnostic fields are associated with PSFA_a173. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Derating Factor
PSFA_
|
— |
Local Ecu Temperature
PSFA_
|
C |
Local Winding Model Estimated Temp
PSFA_
|
C |
Local Winding Rs Estimated Temp
PSFA_
|
C |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PSFA_a173.