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Service procedures 2026 firmware

Restore REAR-LEFT Drive INVERTER Bootloader Data after Replacement

Coriander/tasks/PROC_PMREL_X_RESTORE-DATA-BOOT

Model S / X (2021+)

What this task does

Restores Rear Left Drive Inverter (DIREL) bootloader data after DIREL replacement

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 (2021+) AMD · Firmware 2026.20.6.1
Vehicle coverage
2021+ Model S, 2021+ Model X
Supported connection
Local connection
Vehicle state
Stationary · Parked; Stationary · Neutral
Gateway diagnostic level
No specific level listed

Task inputs (1)

RunOnlyThroughAutodiag

RunOnlyThroughAutodiag · String

Firmware default: Run only through Autodiag

Related service tasks

Browse all tasks →
Service procedures

Drive Inverter Rear Left (DIREL) - Restore Bootloader Data After Replacement

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

PROC_PMREL_X_LEGACY-RESTORE-ENTRYPOINT

Model S / X (2021+)
Communication checks

Propulsion Monitor Rear Left CAN Communication

Tests communication with the Propulsion Monitor Rear Left (PMREL) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

PING-TP_PMREL

Model S / X (2021+)