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EPAS Trim Torsion Bar Torque

Common/tasks/PROC_EPAS_TBT_TRIM-TORSION-BAR-TORQUE

What this task does

Zero EPAS Torque Sensor: ensure vehicle is on lift!

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, Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
DiagLinkActive, Factory, Service

Procedure notes

The Torsion Bar Torque will be zeroed. Make sure there are no external forces on steering wheel and that the steering wheel is straight.

Task inputs (1)

confirm

confirm · String

Car needs to be lifted - make sure you fully understand the need to run this routine before running it. MUST INPUT "liftcar"

Default: (empty string)

Model 3 / Y Intel
Vehicle coverage
Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
DiagLinkActive, Factory, Service

Procedure notes

The Torsion Bar Torque will be zeroed. Make sure there are no external forces on steering wheel and that the steering wheel is straight.

Task inputs (1)

confirm

confirm · String

Car needs to be lifted - make sure you fully understand the need to run this routine before running it. MUST INPUT "liftcar"

Default: (empty string)

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Service procedures

Clear EPAS3P and EPAS3S DTCs

Clears Diagnostic Trouble Codes (DTCs) from the electrically assisted power steering (EPAS3P and EPAS3S) electronic control units (ECUs).

PROC_EPAS_X_CLEAR-DTCS

Model 3 / Y
Service procedures

EPAS ESP - Clear Angle Offsets

Clears angle offsets for Electronic Stability Program (ESP) and Electronic Power Assist Steering (EPAS) (including EPAS, EPAS2, and EPAS3x). Clears steering angle offsets for the Drive Inverter (DI). Resets soft lock stops on EPAS.

PROC_EPAS_ESP_CLEAR-ANGLE-OFFSETS

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

EPAS Post Replacement Routine

The procedure runs all required routines after a steering rack replacement.

PROC_EPAS_X_POST-REPLACEMENT

Model 3 / Y Model S / X (legacy) Model S / X (2021+)
Self-tests

Steering Angle Offset Detection Test

This routine checks if the wheel alignment has been disturbed after a suspension repair. Drive the vehicle on a straight road above 30kph/18mph. If the alignment has changed, the routine will indicate that a wheel alignment is required.

TEST-SELF_EPAS_X_STEERING-CENTER-OFFSET-SERVICE

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