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Service procedures

Bosch EPAS Calibration

ModelSX/tasks/PROC_EPAS_X_CALIBRATION

Model S / X (legacy)

What this task does

Calibrates Bosch Electric Power Assisted Steering (EPAS) by flashing the Electronic Control Unit (ECU), resetting steering soft lock stops, and angle compensation.

Vehicle compatibility

Select your vehicle’s hardware to see task details, requirements, and inputs. Availability is confirmed after connection.

Model S / X (legacy) Legacy infotainment
Vehicle coverage
Pre-2021 Model S, Pre-2021 Model X
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
Factory, Service

Task inputs (0)

This task has no listed user inputs.

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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+)