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Communication checks 2026 firmware

Front Vehicle Controller (VCBATT) CAN Communication

Gen3/tasks/PING-TP_VCBATT2

What this task does

Tests communication with the front vehicle controller (VCBATT2) 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, Model Y
Supported connection
Local connection
Vehicle state
Stationary · Parked; Stationary · Neutral
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
Supported connection
Local connection
Vehicle state
Stationary · Parked; Stationary · Neutral
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

Clear Post-Crash Load Shedding

Clears the load shedding from the Vehicle Controller.

PROC_VCBATT2_X_CLEAR-POST-CRASH-LOADSHEDDING

Model 3 / Y
Service procedures

Clear right headlamp latched faults in factory

Clear all right headlamp factory latched faults that were triggering rightHeadlampFactoryFault alert

PROC_VCBATT2_X_CLEAR-HEADLAMP-LATCHED-FACTORY-FAULTS

Model 3 / Y
Self-tests

Frunk Emergency Release Switch LED Connection

Checks the electrical connection of the LED light in front trunk emergency release switch controlled by the Front Battery Controller (VCBATT2).

TEST-SELF_VCBATT2_X_FRUNK-LED

Model 3 / Y
Self-tests

Frunk Latch Releases

The test releases the latch of the front trunk controlled by the Front Battery Controller (VCBATT2).

TEST-SELF_VCBATT2_X_FRUNK-LATCH

Model 3 / Y