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Self-tests 2026 firmware

HVAC System Performance Test

Gen3/tasks/TEST-SELF_VCFRONT2_X_HVAC-PERFORMANCE

What this task does

Tests the cabin HVAC operation (cabin heating and cooling) and returns pass or fail.

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
No specific level listed

Task inputs (0)

No user inputs are listed in this firmware.

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Self-tests

Ambient Sensor Test

Tests for power, connection, and communication of the ambient sensor controlled by the Front Vehicle Controller (VCFRONT2).

TEST-SELF_VCFRONT2_X_AMBIENT-TEMP

Model 3 / Y
Self-tests

Battery Coolant Pump Test

Tests for power, connection, and communication of the battery coolant pump controlled by the Front Vehicle Controller (VCFRONT2).

TEST-SELF_VCFRONT2_X_COOLANT-PUMP-BATTERY

Model 3 / Y
Service procedures

Clear left headlamp latched faults in factory

Clear all left headlamp factory latched faults that were triggering leftHeadlampFactoryFault alert

PROC_VCFRONT2_X_CLEAR-HEADLAMP-LATCHED-FACTORY-FAULTS

Model 3 / Y
Service procedures

Coolant - Start Thermal Fluid Fill and Drain

Starts the Thermal Fluid Fill and Thermal Fluid Drain procedures. Returns result when routine is started, but runs for up to 50 minutes.

PROC_VCFRONT2_X_START-THERMAL-FILL-DRAIN-COOLANT

Model 3 / Y