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Communication checks 2026 firmware

ESP Chassis CAN Communication Test

Gen3/tasks/PING-TP_ESP

What this task does

Tests the communication of the Electronic Stability Program (ESP) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the chassis Controller Area Network (CAN).

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
2024+ Model 3, 2025+ Model Y, Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
No specific level listed

Procedure notes

When communication is established, the test will succeed. If the test fails, inspect wiring and ensure ECU is powered.

Task inputs (0)

No user inputs are listed in this firmware.

Model 3 / Y Intel · Firmware 2026.32.7
Vehicle coverage
Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
No specific level listed

Procedure notes

When communication is established, the test will succeed. If the test fails, inspect wiring and ensure ECU is powered.

Task inputs (0)

No user inputs are listed in this firmware.

Model S / X (2021+) AMD · Firmware 2026.20.6.1
Vehicle coverage
2021+ Model S, 2021+ Model X
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
No specific level listed

Procedure notes

When communication is established, the test will succeed. If the test fails, inspect wiring and ensure ECU is powered.

Task inputs (0)

No user inputs are listed in this firmware.

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Service procedures

ESP - Clear DTCs

Clears Diagnostic Trouble Codes (DTC) in the Electronic Stability Program (ESP) Electronic Control Unit (ECU).

PROC_ESP_X_CLEAR-DTCS

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

ESP Party CAN Communication

Tests the communication of the Electronic Stability Program (ESP) Electronic Control Unit (ECU). Communication is established over the Party Controller Area Network (CAN).

PING-DTC_ESP_X_PARTY

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

ESP UDS ECU Reset

Resets the Electronic Stability Program (ESP) Electronic Control Unit (ECU). Reset is executed via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

TEST-RESET_ESP

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

FL and RR Brake Bleed

The Electronic Stability Program (ESP) Hydraulic Control Unit executes the brake fluid flush and bleed process. Active-circuit wheels are Front-Left (FL) and Rear-Right (RR). Use this routine only during fluid flush or bleed with appropriate brake bleeding equipment. The estimated time to complete is five seconds. The ESP Hydraulic Control Unit will run the high pressure pump and control circuit valves to facilitate a prescheduled brake fluid flush or bleed.

PROC_ESP_FRONT-L-REAR-R-BRAKE-BLEED

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