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Diagnostic tests 2026 firmware

Blower identification and HVAC system performance test

Gen3/tasks/TEST_VC_X_HVAC-BLOWER-IDENTIFICATION-AND-HVAC-PERFORMANCE

Model 3 / Y

What this task does

Runs blower identification first, then runs the HVAC system performance test.

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
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
Service, Factory, DiagLinkActive

Procedure notes

HVAC blower is held stopped during identification; high-frequency voltage injection may produce a brief audible tone. HVAC performance testing follows on success.

Task inputs (0)

No user inputs are listed in this firmware.

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Service procedures

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PROC_VC_X_STATUS-POWER-OFF-REQUEST

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