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Service procedures 2026 firmware

REAR Drive Unit Usage ID Configuration

Gen3/tasks/PROC_PMR_X_WRITE-DRIVE-TYPE

What this task does

The procedure configures usage ID and writes the drive type of the rear drive unit in the Rear Pedal Monitor (PMR) Electronic Control Unit (ECU).

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
Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Parked; Stationary · Reverse; Stationary · Neutral; Stationary · Drive
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; Stationary · Reverse; Stationary · Neutral; Stationary · Drive
Gateway diagnostic level
No specific level listed

Task inputs (0)

No user inputs are listed in this firmware.

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Self-tests

Drive Inverter CAN Communication Self-Test

Tests communication of the Right Drive Inverter and Pedal Monitor (PMR) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

TEST-SELF_PMR_X_CAN-COMMS

Model 3 / Y
Service procedures

Drive Inverter Rear (DIR) - Restore Bootloader Data After Replacement

Restores the Drive Inverter Rear (DIR) bootloader data from the most recent backup on the car computer and configures the Usage ID after a DIR replacement. Run this routine only after a new compatible drive inverter is installed. After successfully completing, this procedure fails if run multiple times.

PROC_PMR_X_LEGACY-RESTORE-ENTRYPOINT

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