SDCR_a004_pmRunningFdbkIrrational

Drive inverter (DI) running-feedback (fdbk) pin to secondary disconnect controller (SDC) is in an irrational state.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

SDC will not skip pyro self-test (PST) if DI is MIA at startup. Potential overlapping pyro self-tests.

Description

Drive inverter (DI) running-feedback (fdbk) pin to secondary disconnect controller (SDC) is in an irrational state.

Cause

DI UART data is active, but running-feedback pin state is low.

Clear condition

DI running-feedback pin is set, or universal asynchronous receiver-transmitter (UART) communication stops.

Models

Cybertruck, Model 3 2017-2023, Model 3 2024+, Model Y, Model Y 2025+

Visibility

service-fix

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