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Service procedures 2026 firmware

Turn Off E-fuse Power Feed

Gen3/tasks/PROC_VC_X_POWER-OFF-REQUEST

Model 3 / Y

What this task does

Turns off an individual e-fuse power feed for the selected component. The channel powers down respecting the going-down timer. When the timeout expires, power is restored automatically.

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
2025+ Model Y
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
Factory, Service, DiagLinkActive

Procedure notes

Selected component will lose LV power. Safety-critical components may generate alerts when toggled. Vehicle must be in Factory Mode or Service Mode Plus.

Task inputs (2)

Component

component · EnumType

Select the component to turn off. Format is ECUNODENAME_CHANNELNAME. The script routes the UDS routine to the correct managing ECU automatically.

Firmware default: VCFRONT1_HEADLIGHT_LEFT

Options: VCFRONT1_EPAS2, VCFRONT1_PCS, VCFRONT1_AUTOPILOT_2, VCFRONT1_HEADLIGHT_LEFT, VCFRONT1_FRONT_DRIVE_INVERTER, VCFRONT1_POWERTRAIN_PUMP, VCFRONT1_RIGHT_CONTROLLER, VCFRONT1_MCU_AUDIO, VCFRONT2_HV_COMPRESSOR, VCBATT1_EPAS1, VCBATT1_AUTOPILOT_1, VCBATT1_HEADLIGHT_RIGHT, VCBATT1_EPAS_WAKE, VCBATT1_LEFT_CONTROLLER, VCLEFT_SCCM, VCLEFT_REAR_DRIVE_INVERTER, VCLEFT_STEERING_ECU, VCLEFT_TRAILER_BRAKE_ECU, VCLEFT_TPMS, VCLEFT_HVAC_BLOWER, VCLEFT_SEAT_2R_CONTROLLER, VCRIGHT_HVAC_PTC_HEATER, VCRIGHT_OCS, VCRIGHT_REAR_OIL_PUMP, VCRIGHT_LUMBAR_ECU, VCRIGHT_INTERIOR_RADAR

Timeout

timeout · EnumType

How long to keep the efuse off before auto-recovery. After this time, the firmware automatically restores normal power management.

Firmware default: 5_MINUTES

Options: 5_MINUTES, 30_MINUTES, 60_MINUTES

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