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Communication checks 2026 firmware

DIR CAN Communication

Gen3/tasks/PING-TP_DIR

Model 3 / YModel S / X (2021+)

What this task does

Tests the communication of the Rear Drive Inverter (DIR) Electronic Control Unit (ECU). Communication is established via UDS over the Controller Area Network (CAN). When communication is established, the test will succeed. If the test fails, inspect the wiring and confirm the ECU is powered.

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

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

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

Task inputs (0)

No user inputs are listed in this firmware.

Related service tasks

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Self-tests

Accelerator Connection Test

Tests for power, connection, and communication of the acceleration pedal.

TEST-SELF_DIR_X_ACCEL-PEDAL

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

After Tire Rotation or Replacement - Tire Estimates Reset

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

PROC_DIR_CLEAR-LEARNT-TIRE-OFFSET

Model 3 / Y