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Self-tests 2026 firmware

DPB Air and Leakage selftest

Gen3/tasks/TEST-SELF_DPB_AIR-AND-LEAKAGE

Model 3 / Y

What this task does

This will test the DPB connection to the ESP as well as potential leakage air in the system

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
Remote access
Vehicle state
Stationary · Parked
Gateway diagnostic level
No specific level listed

Task inputs (5)

STIFFNESS_ROUTINE_PARAMETERS

STIFFNESS_ROUTINE_PARAMETERS · Dict

Input parameters for the DPB UDS routine

Firmware default: Not specified

PRESSURE_DELTA_PIPE_CORRELATION

PRESSURE_DELTA_PIPE_CORRELATION · Float

Pipe correlation threshold to ensure that DPB and ESP are connected correctly

Firmware default: Not specified

PRESSURE_LEAKAGE_DELTA

PRESSURE_LEAKAGE_DELTA · Float

Threshold to ensure that there is no leakage in the system

Firmware default: Not specified

PLUNGER_STROKE_LIMITS

PLUNGER_STROKE_LIMITS · List

Stroke limits threshold to ensure that there is no air in the system (in the form [Min, Max])

Firmware default: Not specified

PLUNGER_STROKE_DELTA

PLUNGER_STROKE_DELTA · Float

Stroke threshold to ensure that there is no leakage in the system

Firmware default: Not specified

Related service tasks

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Service procedures

Clear DPB DTCs

The procedure clears Diagnostic Trouble Codes (DTC) in the decoupled pedal brake (DPB) Electronic Control Unit (ECU).

PROC_DPB_X_CLEAR-DTCS

Model 3 / Y
Communication checks

Decoupled Pedal Brake CAN Communication

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

PING-TP_DPB

Model 3 / Y
Self-tests

DPB Air and Leakage Monitoring

ALWAYS RUN AFTER BLEED! Used to check for air or leakage in the DPB

TEST-SELF_DPB_LEAKAGE-AND-AIR-MONITORING

Model 3 / Y