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ECU resets 2026 firmware

EPAS3P UDS ECU Reset

Gen3/tasks/TEST-RESET_EPAS3P

Model 3 / YModel S / X (2021+)

What this task does

Resets the Primary Electronic Power Assist Steering (EPAS3P) Electronic Control Unit (ECU). Reset is executed via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

Vehicle & firmware coverage

Open a version to see its description, requirements, and input definitions. Hardware configuration and live vehicle checks also determine availability.

Model 3 / Y AMD · Firmware 2026.32.3
Vehicle coverage
2024+ Model 3, 2025+ Model Y, Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
Service, Factory, DiagLinkActive

Task inputs (0)

No user inputs are listed in this firmware.

Model 3 / Y Intel · Firmware 2026.32.7
Vehicle coverage
Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
Service, Factory, DiagLinkActive

Task inputs (0)

No user inputs are listed in this firmware.

Model S / X (2021+) AMD · Firmware 2026.20.6.1
Vehicle coverage
2021+ Model S, 2021+ Model X
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
Service, Factory, DiagLinkActive

Description in this firmware

The test performs a Unified Diagnostic Services (UDS) reset of the Electronic Power Assist Steering (EPAS) Electronic Control Unit (ECU).

Task inputs (0)

No user inputs are listed in this firmware.

Related service tasks

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Communication checks

EPAS Party CAN Communication Test

Tests the communication of the Electronic Power Assist Steering (EPAS) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Party Controller Area Network (CAN).

PING-TP_EPAS3P

Model 3 / Y Model S / X (2021+)
Diagnostic tests

EPAS3P Check applied angle offset

Checks the applied angle offset for Electronic Power Assist Steering (EPAS).

TEST_EPAS3P_X_CHECK-APPLIED-ANGLE-OFFSET

Model 3 / Y Model S / X (2021+)