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RSA_a139 — Motor Position Sensor Invalid

Full alert identifier: RSA_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 RSA_a139. Check the alert's Alert Log in Service Mode Plus for available values.

Signal Unit
Cos N RSA_a139_cosN —
Cos P RSA_a139_cosP —
Max Pyth Error RSA_a139_maxPythError —
Sin N RSA_a139_sinN —
Sin P RSA_a139_sinP —

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of RSA_a139.

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