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Diagnostic tests 2026 firmware

Check MCU, Premium Amplifier and PWS Speaker Connections

Gen3/tasks/TEST-BASH_SPK_X_MCU-PWS-PREM-CHECK

Model 3 / YModel S / X (2021+)

What this task does

Check the electrical connection of all the speakers (Base-Amp, Premium-Amp and PWS speaker)

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 · Drive; Stationary · Neutral; 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 · Drive; Stationary · Neutral; Stationary · Parked
Gateway diagnostic level
No specific level listed

Task inputs (0)

No user inputs are listed in this firmware.

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A2B Bus Components - Check Connection

Checks the Automotive Audio Bus (A2B) connection of the telephony microphone boards, and if applicable, the Telematics Control Unit (TCU) and the premium amplifier.

TEST-BASH_SPK_X_A2B-CHECK

Model 3 / Y
Diagnostic tests

Check A2B Bus Connection

Check that the main A2B Bus that connects all the telephony microphones, and speakers are working

TEST-BASH_SPK_X_A2B-CHECK

Model S / X (2021+)
Diagnostic tests

Check ANC A2B Bus Connection

Check that the ANC A2B Bus that connects all the ANC microphones, accelerometers are working

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Model S / X (2021+)