SSFA_a139 — Motor Position Sensor Invalid
Full alert identifier: SSFA_a139_motorPositionSensorInvalid
Alert description
One or more steering motor position sensor readings are invalid.
Potential impact
Invalid sensor readings could affect systems reliant on position data.
Set condition
Any motor position sensor is deemed invalid, or readings from valid sensors disagree by more than allowed threshold.
Clear condition
All motor position sensors must be valid and in agreement.
Signals to check
These diagnostic fields are associated with SSFA_a139. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Cos N
SSFA_
|
— |
Cos P
SSFA_
|
— |
Max Pyth Error
SSFA_
|
— |
Sin N
SSFA_
|
— |
Sin P
SSFA_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of SSFA_a139.