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Service procedures 2026 firmware

DIRER Application Data Restore

Gen3/tasks/PROC_DIRER_X_ECU-REPLACEMENT-RESTORE-APP

What this task does

Performs a Drive Inverter Rear Right (DIRER) restore from the latest application data backup saved onto the car computer. This should only be run after the restore bootloader data routine. Requirements: - New compatible drive inverter is installed.

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
Gateway diagnostic level
Service, Factory, DiagLinkActive

Task inputs (0)

No user inputs are listed in this firmware.

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Service procedures

DIRER Bootloader and Application Data Store

This routine saves a PMRER and DIRER bootloader and application data backup snapshot from the installed drive inverter onto the car computer. The backup data is needed when performing a drive inverter replacement.

PROC_DIRER_X_ECU-REPLACEMENT-STORE

Model S / X (2021+)
Service procedures

DIRER Bootloader Data Restore

This routine sets the usage id for the rear right inverter and restores the bootloader data from the latest data backup saved onto the car computer. Requirements: - New compatible drive inverter is installed

PROC_DIRER_X_ECU-REPLACEMENT-RESTORE-BOOT

Model S / X (2021+)
Service procedures

Drive Inverter Rear Right (DIRER) - Restore Application Data After Replacement

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

PROC_DIRER_X_LEGACY-RESTORE-ENTRYPOINT

Model S / X (2021+)
Communication checks

Drive Inverter Rear Right CAN Communication

Tests communication with the Drive Inverter Rear Right (DIRER) Electronic Control Unit (ECU). Communication is established via Unified Diagnostics Services (UDS) over the Controller Area Network (CAN).

PING-TP_DIRER

Model S / X (2021+)