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Communication checks 2026 firmware

Drive Interface CAN Communication

Poppyseed/tasks/PING-TP_DI

What this task does

Tests communication with the Drive Interface (DI) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the 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
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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Self-tests

Accelerator Connection Test

Tests the electrical connection between the accelerator and the Drive Interface (DI) Electronic Control Unit (ECU).

TEST-SELF_DI_X_ACCEL-PEDAL

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

Factory DI Odometer Initialization

Runs the factory Drive Inverter (DI) Odometer initialization routine.

PROC-DID_DI_VEHICLE-ODOMETER

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

Factory DI Odometer Value Check

Checks the odometer value and verifies that it is not too high for delivery.

TEST_DI_VEHICLE-ODOMETER-CHECK

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

Tire Estimates Reset

Resets learned tire estimates to prevent loss of regenerative braking. Clears the tire rotation alert after tire service. Optionally, specify Winter (1) or Summer/All-Season (0) tire type for quicker learning.

PROC_DI_CLEAR-LEARNT-TIRE-OFFSET

Model 3 / Y