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EPAS Party CAN Communication Test

Gen3/tasks/PING-TP_EPAS3P

What this task does

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).

Vehicle compatibility

Select your vehicle’s hardware to see task details, requirements, and inputs. Availability is confirmed after connection.

Model 3 / Y AMD
Vehicle coverage
2024+ Model 3, 2025+ Model Y, Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Parked; Stationary · Reverse; Stationary · Neutral; Stationary · Drive
Gateway diagnostic level
No specific level listed

Procedure notes

When communication is established, the test will succeed. If the test fails, inspect wiring and ensure ECU is powered.

Task inputs (0)

This task has no listed user inputs.

Model 3 / Y Intel
Vehicle coverage
Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Parked; Stationary · Reverse; Stationary · Neutral; Stationary · Drive
Gateway diagnostic level
No specific level listed

Procedure notes

When communication is established, the test will succeed. If the test fails, inspect wiring and ensure ECU is powered.

Task inputs (0)

This task has no listed user inputs.

Model S / X (2021+) AMD
Vehicle coverage
2021+ Model S, 2021+ Model X
Supported connection
Local connection
Vehicle state
Stationary · Parked; Stationary · Reverse; Stationary · Neutral; Stationary · Drive
Gateway diagnostic level
No specific level listed

Procedure notes

When communication is established, the test will succeed. If the test fails, inspect wiring and ensure ECU is powered.

Task inputs (0)

This task has no listed user inputs.

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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+)
ECU resets

EPAS3P UDS ECU Reset

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).

TEST-RESET_EPAS3P

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