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Communication checks 2026 firmware

VCSEC CAN Communication

Gen3/tasks/PING-TP_VCSEC

What this task does

Tests communication with the Security Vehicle Controller (VCSEC) Electronic Control Unit (ECU). Communication is established 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
No specific level listed

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
No specific level listed

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
No specific level listed

Description in this firmware

Security Controller Communication Check

Tests communication with the Security Vehicle Controller (VCSEC) Electronic Control Unit (ECU). Communication is established via Unified Diagnostic Services (UDS) protocol over the Controller Area Network (CAN).

Task inputs (0)

No user inputs are listed in this firmware.

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Self-tests

BLE Endpoint Communication Check

Checks the communication of Bluetooth Low Energy (BLE) endpoints.

TEST-SELF_VCSEC_X_ENDPOINT-COMM

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

NFC Reader Amplitude Test

The procedure tests the amplitude of the Near Field Communication (NFC) reader in the B-pillar controlled by the Security Controller (VCSEC).

PROC_VCSEC_DRV_BPILLAR-NFC-AMPLITUDE

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

Show all public keys on whitelist

The test displays all public keys on the whitelist of the Security Controller (VCSEC) and optionally shows permissions.

TEST_VCSEC_X_DISPLAY-KEY-WHITELIST

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