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Service procedures 2026 firmware

Set HVAC Blower Motor Type

Gen3/tasks/PROC_VCLEFT_X_MLX-HVAC-BLOWER-MOTOR-TYPE

What this task does

This routine will override the HVAC bLower motor type.

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 will stop spinning when the routine is active.

Task inputs (1)

Motor Type

set_motor_type · Int

Set the HVAC blower motor type (0:Unknown, 1:Delta, 2:Bosch)

Firmware default: 1

Browse all tasks →
Self-tests

2R Connections to VCLEFT

Tests the connection between VCLEFT and the different rear left seat endpoints.

TEST-SELF_VCLEFT_REAR_SEAT

Model 3 / Y
Service procedures

Blower Identification Routine

Holds the blower stopped, performs high frequency voltage injection, detects blower type, and sets blower type over LIN

PROC_VCLEFT_X_HVAC-BLOWER-IDENTIFICATION

Model 3 / Y