Tesla service tasks.

Service procedures

Steering Heater Off

This test turns the steering heater off.

PROC_CID_X_STEERING-HEATER-OFF

Model S / X (legacy)

Self-tests

Steering Wheel ECU LIN Communication

The self-test checks the Steering Wheel Controller (SWC) ECU communication with the Left Vehicle Controller (VCLEFT) ECU on the Local Interconnect Network (LIN) bus network.

TEST-SELF_VCLEFT_X_SWC

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

Service procedures

Steering Wheel/Yoke Vehicle - Set Configuration

Run this routine after retrofitting the wheel type in any manner. Sets the steering wheel configuration based on the installed part number. Note: Model S/X Long Range built after 8 MAY 2025 do not support yoke; only ROUND or ROUND_MECHANICAL_HORN selections are accepted on those vehicles. Plaid variants are unaffected.

PROC_GTW_X_STEERING-WHEEL-YOKE-SWAP

Model S / X (2021+)

Self-tests

Stop Coolant Valve Flow Test

Model 3 Non-heat-pump ONLY - Stops coolant valve flow test

TEST-SELF_VCFRONT_X_THERMAL-COOLANT-VALVE-FLOW-STOP

Model 3 / Y

Service procedures

Stop HV Battery Discharge

Stops the High Voltage (HV) Battery discharge routine, if active.

PROC_VCFRONT2_X_HV-DISCHARGE-STOP

Model 3 / Y

Service procedures

Stop HV Battery Discharge

Stops the High Voltage (HV) Battery discharge routine, if active.

PROC_VCFRONT_X_HV-DISCHARGE-STOP

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

Service procedures

Stop sunroof movement

Asks sunroof to stop moving.

PROC_CID_X_SUNROOF-STOP

Model S / X (legacy)

Service procedures

Stop The Close Refrigerant Valves routine

The procedure stops the Close Refrigerant Valves routine and returns results.

PROC_VCFRONT2_X_STOP-CLOSE-REFRIGERANT-VALVES

Model 3 / Y

Service procedures

Stop The Close Refrigerant Valves routine

The procedure stops the Close Refrigerant Valves routine and returns results.

PROC_VCFRONT_X_STOP-CLOSE-REFRIGERANT-VALVES

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

Service procedures

Stop Thermal Coolant Flow Cycle

The procedure stops the Thermal Coolant Flow Cycle with all coolant modes.

PROC_VCFRONT2_X_STOP-THERMAL-COOLANT-FLOW-CYCLE

Model 3 / Y

Service procedures

Stop Thermal Coolant Flow Cycle

The procedure stops the Thermal Coolant Flow Cycle with all coolant modes.

PROC_VCFRONT_X_STOP-THERMAL-COOLANT-FLOW-CYCLE

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

Service procedures

Stop Thermal Fluid Fill and Drain

Stops the Thermal Fluid Fill and Thermal Fluid Drain routine, allowing the coolant valve, coolant pumps, and Electronic Expansion Valves (EXVs) to return to their default operational states.

PROC_VCFRONT2_X_STOP-THERMAL-FILL-DRAIN

Model 3 / Y

Service procedures

Stop Thermal Fluid Fill and Drain

Stops the Thermal Fill and Drain routine and allows the coolant valve, coolant pumps, and Electronic Expansion Valves (EXVs) to return to their default operational states.

PROC_VCFRONT_X_STOP-THERMAL-FILL-DRAIN

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

Service procedures

Store Inverter Data

Store drive INVERTER bootloader and application data before replacement

PROC_PMX_X_STORE-ALL-DATA-AWD

Model 3 / Y

Service procedures

Store Inverter Data

Store drive INVERTER bootloader and application data before replacement

PROC_PMX_X_STORE-ALL-DATA-AWD-OR-AWD-DUAL-REAR

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

Service procedures

Store Rear Left Drive Inverter Bootloader Data before Replacement

Backs up Rear Left Drive Inverter (DIREL) bootloader data. Press the brake pedal to turn on drive rail before starting the routine.

PROC_PMREL_X_STORE-DATA-BOOT

Model S / X (2021+)

Service procedures

Store Rear Right Drive Inverter Bootloader Data before Replacement

This routine stores the Rear Right Drive Inverter Bootloader Data before replacement. Press the brake pedal to turn on drive rail before starting the routine.

PROC_PMRER_X_STORE-DATA-BOOT

Model S / X (2021+)

Diagnostic tests

Subwoofer (Premium) Test

This tests the functionality of the Subwoofer (Premium).

TEST-BASH_CID_X_SPEAKER-SBW

Model S / X (legacy)

Communication checks

SUN CAN Communication

Tests communication with the SUN Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

PING-TP_SUN

Model S / X (legacy)

Service procedures

SUN Pektron VIN Learn

This routine performs the VIN Learn, and side configuration learn for Pektron door module. This is necessary to ensure the sunroof controller (SUN) recognizes the correct vehicle configuration. Test will always report as passed to MES due to unreliability of the routine. Routine is necessary after any configuration changes that affect the SUN module.

PROC_SUN_X_PEKTRON-VIN-LEARN

Model S / X (legacy)

Service procedures

SV Command

Runs the sv command on the car computer to control and see the current status of infotainment processes.

PROC_ICE_X_SV-COMMAND

Model 3 / Y Model S / X (legacy) Model S / X (2021+)

Service procedures

Swap Dual Bootstrap eSIM Operator

The dual bootstrap eSim procedure swaps the eSim operator from AT&T to KPN and vice-versa. For the procedure to execute properly, the 'kpn' input must be set to 'true' to switch to KPN and 'false' to switch to AT&T.

PROC_ICE_X_DUAL-BOOTSTRAP-E-SIM

Model S / X (legacy)

Service procedures

TAS Assisted Inflate Component

The procedure assists the inflation of a component on a Tesla Air Suspension (TAS) vehicle.

PROC_TAS_X_ASSISTED-INFLATE

Model S / X (legacy) Model S / X (2021+)

Communication checks

TAS CAN Communication

Tests communication with the Air Suspension Chassis (TAS) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

PING-TP_TAS

Model S / X (legacy)