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Blower identification and HVAC system performance test

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

What this task does

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

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
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)

This task has no listed user inputs.

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Service procedures

Actuate Thermal Components

Set Thermal components to target positions for one minute or sweep them twice between end points. The routine will complete when all components have reached their target positions. Until then, other components will remain at their target positions or continue sweeping. Unselected components will default to a target position that minimizes noise, vibration, and harshness (NVH).

PROC_VC_X_ACTUATE-THERMAL-COMPONENTS

Model 3 / Y
Service procedures

All Window Command Position

Move all windows to a specified position.

PROC_VC_X_ALL-COMMAND-WINDOW-POSITION

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

Check E-fuse Power Off Status

Query the current power-off status for a specific component. Returns the status and remaining timeout for any active power-off request.

PROC_VC_X_STATUS-POWER-OFF-REQUEST

Model 3 / Y