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SSFA_a252 — Steering Degraded By Vehicle

Full alert identifier: SSFA_a252_steeringDegradedByVehicle

Alert description

Steering system performance degraded due to condition detected affecting functionality.

Potential impact

Steering system performance is degraded, and vehicle speed is limited.

Set condition

Any condition detected affecting steering system functionality.

Clear condition

All conditions affecting steering system functionality are resolved, and a new drive cycle starts.

Signals to check

These diagnostic fields are associated with SSFA_a252. Check the alert's Alert Log in Service Mode Plus for available values.

Signal Unit
Communication Force Delegation Rx SSFA_a252_communicationForceDelegationRx —
Communication Steering Command Rx SSFA_a252_communicationSteeringCommandRx —
Communication Torque Delegation Rx SSFA_a252_communicationTorqueDelegationRx —
Feedback Primary SSFA_a252_feedbackPrimary —
Feedback Secondary SSFA_a252_feedbackSecondary —
Handwheel Health SSFA_a252_handwheelHealth
0
FAULT
1
DEGRADED SECONDARY
2
DEGRADED PRIMARY
3
DEGRADED NO LV
4
HEALTHY
—
Handwheel Lv Redundancy Okay SSFA_a252_handwheelLvRedundancyOkay —
Handwheel Torque Output Primary SSFA_a252_handwheelTorqueOutputPrimary —
Show 24 more fields
Signal Unit
Handwheel Torque Output Secondary SSFA_a252_handwheelTorqueOutputSecondary —
Rack Center Known Primary SSFA_a252_rackCenterKnownPrimary —
Rack Center Known Secondary SSFA_a252_rackCenterKnownSecondary —
Rack Control Primary SSFA_a252_rackControlPrimary —
Rack Control Secondary SSFA_a252_rackControlSecondary —
Rack Force Output Primary SSFA_a252_rackForceOutputPrimary —
Rack Force Output Secondary SSFA_a252_rackForceOutputSecondary —
Rack Lv Redundancy Okay SSFA_a252_rackLvRedundancyOkay —
Redundancy Healthy PEPS SSFA_a252_redundancyHealthyPEPS —
Redundancy Healthy PSFA SSFA_a252_redundancyHealthyPSFA —
Redundancy Healthy SEPS SSFA_a252_redundancyHealthySEPS —
Roadwheel Health SSFA_a252_roadwheelHealth
0
FAULT
1
DEGRADED SECONDARY
2
DEGRADED PRIMARY
3
DEGRADED NO LV
4
HEALTHY
—
Roadwheel Healthy SSFA_a252_roadwheelHealthy —
Steering Command Autopilot Primary SSFA_a252_steeringCommandAutopilotPrimary —
Steering Command Autopilot Secondary SSFA_a252_steeringCommandAutopilotSecondary —
Steering Command Primary SSFA_a252_steeringCommandPrimary —
Steering Command Secondary SSFA_a252_steeringCommandSecondary —
System State SSFA_a252_systemState —
Vehicle Estimates PEPS SSFA_a252_vehicleEstimatesPEPS —
Vehicle Estimates PSFA SSFA_a252_vehicleEstimatesPSFA —
Vehicle In Motion SSFA_a252_vehicleInMotion —
Vehicle Speed PEPS SSFA_a252_vehicleSpeedPEPS —
Vehicle Speed PSFA SSFA_a252_vehicleSpeedPSFA —
Vehicle Speed SEPS SSFA_a252_vehicleSpeedSEPS —

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of SSFA_a252.

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