The vehicle gateway (GTW) has not received an expected system status message from the secondary Electronic Power-Assisted Steering (EPAS3S) electronic control unit (ECU) via the controller area network (CAN) within the required time period, indicating the EPAS3S ECU may be unavailable and power steering may be limited or unavailable.
<0.01% (Extremely rare)
Steering assist reduced
Steering may require increased effort
Power steering and Autopilot features depending on EPAS3S, including Autosteer, may be limited or unavailable.
The vehicle gateway (GTW) has not received an expected system status message from the secondary Electronic Power-Assisted Steering (EPAS3S) electronic control unit (ECU) via the controller area network (CAN) within the required time period, indicating the EPAS3S ECU may be unavailable and power steering may be limited or unavailable.
The GTW does not receive the system status CAN message from EPAS3S ECU during 5 consecutive message cycles (for 50ms) while the vehicle is in Drive.
The GTW receives the system status CAN message from EPAS3S ECU as expected. Clears automatically when the vehicle exits Drive, and may be resolved completely (does not set again) when starting the next drive cycle.
Cybertruck, Model 3 2017-2023, Model 3 2024+, Model S 2021+, Model X 2021+, Model Y, Model Y 2025+, Semitruck
customer, service-fix
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