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Communication checks 2026 firmware

LFT CAN Communication

ModelS/tasks/PING-TP_LFT

Model S / X (legacy)

What this task does

Tests communication with the LFT 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 S / X (legacy) Legacy infotainment · Firmware 2026.14.6
Vehicle coverage
Pre-2021 Model S
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
Factory, Service

Task inputs (0)

No user inputs are listed in this firmware.

Related service tasks

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Diagnostic tests

3rd Row Liftgate Button (Close)

Test checks the function of the interior trunk release button on vehicles equipped with a third row jump seat. Press the third row interior trunk release while the trunk is open to pass.

TEST_LFT_TRNK_CLOSE-PRESSED

Model S / X (legacy)
Diagnostic tests

3rd Row Liftgate Button (Open)

Test checks the function of the interior trunk release button on vehicles equipped with a third row jump seat. Press the third row interior trunk release to pass.

TEST_LFT_TRNK_OPEN-PRESSED

Model S / X (legacy)
Service procedures

LFT Pektron VIN Learn

This routine performs the VIN Learn, and side configuration learn for Pektron door module. This is necessary to ensure the liftgate controller (LFT) recognizes the correct vehicle configuration. Test will always report as passed to MES due to unreliability of the routine. Routine is necessary after any configuration changes that affect the LFT module.

PROC_LFT_TRNK_PEKTRON-VIN-LEARN

Model S / X (legacy)