VAG IMMO Tool — BCM2/ELV/EZS/TCU, PCR2.1 & ECU Decode • EEPROM 95320

Bin said:

All-in-one VAG IMMO workspace
Decode / view / edit immobilizer datasets across BCM2 / BCM2 Locked / ELV / EZS / CCM / TCU plus PCR2.1 and ECU Decode pages (EEPROM / D-Flash / P-Flash / Flash) — with clear UI fields like VIN, CS, MAC, Power Class, key slots, status and export/save actions.

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Built for fast, structured IMMO data work: upload the required dump (EEPROM / Flash / D-Flash / P-Flash), press Decode, and get a clean “service view” of the immobilizer dataset.
You’ll see the same core pairing fields across modules (VIN, IMMO ID, CS, MAC, Power Class, key slots, status/CP fields where applicable), plus one-click export buttons like Save Data, Save EEPROM and Save Flash depending on the module.

View attachment 2613​

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What you can do with it (in practice)

• Decode immobilizer datasets from different VAG control units and see the important fields in a clean editor (no hex scrolling).
• Compare / verify data — quickly check whether dumps match each other (typical when diagnosing “component protection / mismatch” style problems).
• Prepare data for module replacement — when you have an original unit + donor unit and need the donor to match the vehicle’s stored identity/alignment data.
• Recover from corrupted dumps — the UI is designed around “decode → identify → edit → export” flows and has dedicated repair-style actions in some modules.
• Work module-by-module — ELV, BCM2, EZS, CCM, TCU are treated differently because the stored IMMO structure differs per unit.
• Export results — save decoded data views and save processed EEPROM/Flash outputs (buttons are built into every Execute page).

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Why there are so many modules (what each one targets)
Think of each module as a “profile” for a specific unit/family and its memory layout:

• BCM2 — main body/immobilizer storage workflow for BCM2 (EEPROM/P-Flash pairing in the Execute). Shows the richest dataset view (CS/MAC, CP-related fields, key slots, etc.).
• BCM2 Locked — BCM2 locked variant flow (D-Flash + P-Flash + optional key file). Same idea as BCM2, different source files and structure.
• AUDI ELV — ELV (steering column lock) focused workflow. Flash input → decoded IMMO fields + console for status/logs.
• EZS — EZS (central locking / immobilizer-related dataset) workflow. EEPROM input → CS/MAC/PIN/status + key slots.
• EZS Crafter — EZS flow tailored for VW Crafter modules (same UI style, but Crafter-specific dataset layout).
• SYNC AKL — “All Keys Lost” synchronization suite shown in the module overview (reset/synchronization style actions).
• CCM — comfort module dataset view (VIN/IMMO ID/CS/MAC + brand/status dropdowns + key slots).
• TCU — DSG/TCU workflow (Flash + EEPROM inputs) with its own decoded fields and drop-down selectors for IMMO areas.
• PCR2.1 — EEPROM-only operations for PCR2.1 family (the UI explicitly highlights EEPROM-only support).
• ECU DECODE — engine ECU focused decode/edit for IMMO4/IMMO5/IMMO6 generations (as stated in the module description).
• ECU Cloning — “Original vs Donor” full automatic built for moving the full dataset between ECUs and keeping alignment consistent.

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Access
https://www.immo-master.net/vag/login.php

Code:

👤 Login: mhh
🔑 Password: full

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Quick module map

Module	Core purpose (as shown)	Available actions	Required files
BCM2	Decrypt IMMO data from BCM2 95320 EEPROM or D-Flash; identify/repair data issues; ELV-related option shown	Decode/Edit IMMO data • Repair EEPROM Errors • Disable ELV	EEPROM 95320 or D-Flash • P-Flash
BCM2 Locked	Decrypt IMMO data from BCM2 Locked D-Flash; data error repair; ELV-related option shown	Decode/Edit IMMO data • Repair EEPROM Errors • Disable ELV	D-Flash dump • P-Flash • Key EEPROM file (full decode only)
AUDI ELV	Electronic Steering Column Lock: clone/decrypt IMMO-related data from ELV module	Decrypt IMMO data • Edit IMMO data	DFlash file
EZS	Electronic Central Locking: clone/decrypt/edit IMMO data (Audi EZS), MCU-type targeted	Decrypt IMMO data • Edit IMMO data	EEPROM or D-Flash
EZS Crafter	VW Crafter EZS: full IMMO decryption + complete cloning support (as stated in UI)	Decrypt IMMO data • Edit IMMO data	EEPROM or D-Flash
SYNC AKL	All Keys Lost synchronization suite: reset + synchronization workflows	Immo Reset • ECU Synchronization • Transponder Generation • Adaptation Reset	EEPROM file • Abrites • Advanced Diagnostics
CCM	Comfort Control Module: cloning + full decryption of immobilizer data in VAG CCM units	Decrypt IMMO data • Edit IMMO data	EEPROM file
TCU	Transmission Control Unit: cloning-style data handling on DQ200/DQ250/DQ400 MQB families	Decrypt IMMO data • Edit IMMO data • IMMO OFF (button shown)	EEPROM file • Flash file
PCR2.1	PCR 2.1 — EEPROM Only Operations: decrypt all immobilizer data using EEPROM only (no flash / no MCU ID required)	Decrypt all immo data • Edit all immo data	EEPROM 95640 (accepted size: 8 KB or 136 KB)
ECU DECODE	Engine Control Unit IMMO workspace: calculates/edits IMMO data for IMMO4 / IMMO5 / IMMO6 generations	Decrypt all immo data • Edit all immo data	Eeprom File • Flash File OR MCU ID
ECU Cloning	Full Automatic ECU cloning for engine ECUs incl. immobilizer synchronization (as stated in UI)	Full ECU Clone • Immo Data Transfer	Original ECU EEPROM/Flash • Donor ECU EEPROM/Flash • MCU ID (optional)

“Execute” pages — common layout
After clicking Execute, modules open a dedicated “Programming Interface” with a familiar structure:

• Upload Files — only the file types needed for that module (EEPROM / D-Flash / P-Flash / Flash)
• File Operations — buttons like Decode, Save Data, Save EEPROM, Save Flash, etc.
• Identification (where available) — detected HW/SW/Version/ECU type/IMMO type after decoding
• Config (where available) — Master/Slave ECU + TCU/ELV toggles (checkboxes)
• Immo Data — decoded fields + Enable Edition toggle for editing mode
• Console (some modules) — log output + Clear button

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Modules (expanded: Dashboard details + Execute interface)

Spoiler: BCM2 — 95320 EEPROM / D-Flash IMMO workspace + Programming Interface

Dashboard (“Module Details”) highlights

• Decrypts IMMO data stored in BCM2 95320 EEPROM or D-Flash; aimed at identifying/repairing data issues; ELV option is shown.
• Compatibility shown: Audi A4 / Audi A5 / Audi Q5
• Required files shown: EEPROM 95320 or D-Flash + P-Flash

Execute page (“BCM2 — Programming Interface”)

• Upload Files: P-Flash + Eeprom
• File Operations: Decode • Virgin • Save EEPROM • Save Data • Repair ELV
• Identification fields shown: HW • Version • SW • ECU Type • Immo Type
• Config checkboxes shown: Master ECU • Slave ECU • TCU • ELV
• Immo Datafields shown:
  • FAZIT • VIN • Key CS • ECU CS • TCU CS • ELV CS
  • BCM CP • CP Status
  • ECU MAC • TCU MAC • ELV MAC • BCM MAC
  • Power-Class • Key Count • Pin Code
• Keys slots shown: Key1 … Key8

Spoiler: BCM2 Locked — D-Flash based IMMO + Programming Interface

Dashboard (“Module Details”) highlights

• Decrypts IMMO data stored in BCM2 Locked D-Flash; supports data issue repair; ELV option is shown.
• Compatibility shown: Audi A6 / Audi A7 / Audi A8 / VW Touareg
• Required files shown: D-Flash dump + P-Flash + Key EEPROM file (full decode only)

Execute page (“BCM2 Locked — Programming Interface”)

• Upload Files: P-Flash + D-Flash + Key File (Optional)
• File Operations: Decode • Virgin • Save EEPROM • Save Data • Repair ELV
• Identification fields shown: HW • Version • SW • ECU Type • Immo Type
• Config checkboxes shown: Master ECU • Slave ECU • TCU • ELV
• Immo Datafields shown:
  • FAZIT • VIN • Key CS
  • ECU1 CS • ECU2 CS • TCU CS • ELV CS
  • BCM CP • CP Status
  • ECU1 MAC • ECU2 MAC • TCU MAC • ELV MAC • BCM MAC
  • Power-Class • Key Count
• Keys slots shown: Key1 … Key8

Spoiler: AUDI ELV — Electronic Steering Column Lock + Programming Interface

Dashboard (“Module Details”) highlights

• ELV (Electronic Steering Column Lock) module view for cloning/decrypting IMMO-related data (as stated in UI).
• Required files shown: DFlash file

Execute page (“AUDI ELV — Electronic Steering Column Lock”)

• Upload Files: Flash File
• File Operations: Decode • Save Data • Save File
• Immo Data fields shown: VIN • Status • Immo Type • CS • Power Class • MAC • ECU Type
• Console present + Clear button

Spoiler: EZS — Electronic Central Locking + Programming Interface

Dashboard (“Module Details”) highlights

• Clone/decrypt/edit IMMO data from EZS module for Audi vehicles (as stated in UI).
• Compatibility note shown: MCU types 1L59W, 3L40K, 0L01Y
• Required files shown: EEPROM or D-Flash

Execute page (“EZS — Electronic Central Locking”)

• Upload Files: Eeprom File
• File Operations: Decode • Save Data • Save File
• Immo Datafields shown:
  • Fazit • VIN • ECU CS • CS2
  • MAC ECU • MAC ECU 2 • MAC EZS • MAC TCU
  • PIN • Status (dropdown)
  • Power Class • ECU Type • Immo Type • Key Count
• Keys slots shown: Key1 … Key4

Spoiler: EZS Crafter — VW Crafter + Programming Interface

Dashboard (“Module Details”) highlights

• Crafter EZS module: full IMMO decryption + complete cloning support (as stated in UI).
• Compatibility shown: VW Crafter
• Required files shown: EEPROM or D-Flash

Execute page (“EZS Crafter”)

• Upload Files: Eeprom File
• File Operations: Decode • Save Data • Save File
• Immo Data fields shown: Immo ID • VIN • CS • MAC • PIN • Power Class • Immo Type • Key Count
• Keys slots shown: Key1 … Key8

Spoiler: CCM — Comfort Control Module + Programming Interface

Dashboard (“Module Details”) highlights

• CCM enables cloning + full decryption of immobilizer data in VAG CCM units (as stated in UI).
• Compatibility shown: VW Passat B6 / Passat B7 / Passat CC
• Required files shown: EEPROM file

Execute page (“CCM — Comfort Control Module”)

• Upload Files: Eeprom File
• File Operations: Decode • Save Data • Save File
• Immo Datafields shown:
  • Part Number • HW • SW • VIN
  • IMMO ID • CS • PIN • Power Class
  • MAC CCM • MAC ECU • MAC ELV
  • Brand (dropdown) • Immo Status (dropdown) • Key Count
• Keys slots shown: Key1 … Key8

Spoiler: TCU — Transmission Control Unit + Programming Interface

Dashboard (“Module Details”) highlights

• Supports cloning-style operations for DQ200 / DQ200 G2 MQB / DQ250 MQB / DQ400 MQB (as shown).
• UI note shown: for DQ400 correct Power Class configuration aligned with the vehicle module is required.
• Required files shown: EEPROM file + Flash file

Execute page (“TCU — Transmission Control Unit”)

• Upload Files: Flash File + Eeprom File
• File Operations: Decode • Save Data • Save EEPROM • Save Flash • Immo Off (button shown)
• Immo Data fields shown: Part Number • HW • SW • VIN • CS • MAC • Power Class • Immo Flash (dropdown) • TCU Type • Immo Eeprom (dropdown)

Spoiler: PCR 2.1 — EEPROM Only Operations

Dashboard (“Module Details”) highlights

• Description shown: Decrypt all immobilizer data for PCR2.1 using EEPROM only — no flash or MCU ID required.
• Compatibility shown:
  • All 1.6 TDI models equipped with PCR2.1
  • Ibiza
  • Polo
  • Caddy
  • Golf
  • Jeta
  • Others
• Available actions shown: Decrypt all immo data • Edit all immo data
• Required files shown:
  • EEPROM 95640
  • Accepted size: 8 KB or 136 KB

Execute page (“PCR 2.1 — EEPROM Only Operations”)

• Upload Files: Eeprom File (Browse)
• File Operations: Decode • Save Data • Save EEPROM
• Immo Data panel with Enable Edition
• Visible IMMO fields:
  • Part Number • CS • Status (dropdown)
  • MCU ID • MAC • Coding
  • VIN • Power Class
  • IMMO ID • PIN

Spoiler: ECU DECODE — Engine Control Unit (Module Details + Programming Interface)

Dashboard (“Module Details”) highlights

• Description shown: This module calculates/edits IMMO data for IMMO4, IMMO5, and IMMO6 generations.
• Compatibility list shown(as displayed):
  • SIMOS PCR2.1 • SIMOS 10.xx • SIMOS 12.xx • SIMOS 18.xx
  • EDC17C46 • EDC17C54 • EDC17CP04 • EDC17CP14 • EDC17CP20
  • EDC17CP44 • EDC17CP54 • EDC17U01 • EDC17U05
  • ME17.1.1 • ME17.1.6 • ME17.5.2 • ME17.5.6
  • MED17.1 • MED17.1.6 • MED17.5 • MED17.5.1 (MPC & ExtFlash)
  • MED17.5.20 • MED17.5.2 • MED17.5.5
  • EDC17C64 • MED17.1.1 • MED17.1.21
  • ME17.5.20 • ME17.5.24 • ME17.5.26
  • MED17.1.21 • MED17.5.25
• Available actions shown: Decrypt all immo data • Edit all immo data
• Required files shown: Eeprom File • Flash File OR MCU ID

Execute page (“ECU DECODE — Engine Control Unit”)

• Upload Files: Eeprom File + Flash File
• Option: Enter MCU ID Manually (checkbox)
• File Operations: Decode • Save Data • Save EEPROM
• Immo Data panel with Enable Edition
• Visible fields:
  • IMMO Type • VIN • IMMO ID
  • CS • MAC • MAC 1 • MAC 2
  • Power Class • PIN
  • Status (dropdown)

Spoiler: ECU Cloning — Full Automatic (Complete ECU Clone + IMMO Data Transfer)

Dashboard (“Module Details”) highlights

• Title shown: ECU Cloning — Full Automatic
• What it is (UI description):
  
  
  Complete ECU cloning for engine control units including all data, and immobilizer synchronization. Perfect for ECU replacement without dealership.​
• Available actions shown:
  • Full ECU Clone
  • Immo Data Transfer
• Required files shown:
  • Original ECU EEPROM/Flash
  • Donor ECU EEPROM/Flash
  • MCU ID (optional)
• Compatibility shown (as displayed in the UI):
  • SIMOS PCR2.1 • SIMOS 10.xx • SIMOS 12.xx • SIMOS 18.xx
  • EDC17C46 • EDC17C54 • EDC17CP04 • EDC17CP14 • EDC17CP20
  • EDC17CP44 • EDC17CP54 • EDC17U01 • EDC17U05
  • ME17.1.1 • ME17.1.6 • ME17.5.2 • ME17.5.6
  • MED17.1 • MED17.1.6 • MED17.5 • MED17.5.1 (MPC & ExtFlash)
  • MED17.5.20 • MED17.5.2 • MED17.5.5
  • EDC17C64 • MED17.1.1 • MED17.1.21
  • ME17.5.20 • ME17.5.24 • ME17.5.26
  • MED17.1.21 • MED17.5.25

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Execute page (“ECU Cloning — Full Automatic”) — what you actually do

• Two mirrored upload blocks(Original vs Donor) so the tool can move data cleanly between ECUs:
  • Upload Original Files
    • Eeprom File (Original)
    • Flash File (Original)
    • Enter MCU ID Manually (Original) — checkbox (use when MCU ID can’t be auto-detected from files)
  • Upload Donor Files
    • Eeprom File (Donor)
    • Flash File (Donor)
    • Enter MCU ID Manually (Donor) — checkbox (same logic as above)
• Main action: one large button — “Cloning ECU”
  
  
  This is the “one click” workflow trigger for the full automatic operation shown in the UI.​
• Console: live log panel + Clear button
  
  
  Use it to confirm the page is ready, track the workflow steps, and spot missing inputs fast.​

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Why this module is special (based on UI design)

• Unlike single-module decoders, pairing two ECUs (source + donor).
• The UI clearly separates Original and Donor files, which is exactly what you want for a clean clone workflow.
• “Immo Data Transfer” being listed as an action suggests the module is not only cloning raw memory, but also targeting immobilizer synchronization as part of the process.

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BCM2 + EEPROM 95320 checksum note

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