Description
ECU MASTER
OBDSTAR's professional ECU Flasher: clone, read, write and repair modules.
Passenger cars, EVs, motorcycles, trucks and tractors, plus crash resets.
- ✓ Clones ECU/TCM/BCM, so you can fit a junkyard module instead of buying new
- ✓ Reads an open Master level memory file, with no outside vendor in the loop
- ✓ CAN-FD, MP001 and P003+ already inside. Nothing extra to buy
Why buy this tool
Saves money on every module
OEM software often demands a brand new module. Here you take a used one from a breaker, clone the data onto it and it runs. That price gap stays with you or your customer.
Saves cars with no parts left
On older vehicles the manufacturer sometimes has no new module in stock at all. Cloning a used one is occasionally the only route back onto the road instead of the scrapyard.
Open file, no vendor lock-in
Slave tools (AutoTuner, Alientech, Magic) tie you to one master. Here you read the unencrypted memory file and do what you want with it, yourself or through any tuner you pick.
A BSI/BCM list you rarely find elsewhere
OBDSTAR came up through the locksmith trade and it shows. Its body and security module coverage runs wider than most tuning tools that only chase engine and gearbox.
Four connection modes
From the most convenient down to deep chip level access. The tool moves between them depending on what the module allows.
Work straight through the diagnostic port without pulling the module. The easiest method, but you need stable voltage and the vehicle network awake.
Take the module out of the car and connect directly to the connector pins on the bench. This is the most commonly used method when OBD is not an option.
Open the module cover and connect to the chip's BOOT point. Pull the signal into programming mode and read or write over K-line or CAN.
Direct low level access to the chip through the debug interface. This is what is left when neither OBD nor BENCH will talk.
Four software packages, pick what you need
Buy one package, a combination, or all of them (Full Version). The hardware is the same either way, the license is what opens the software.
Cloning and repair of ECM, TCM, BODY/BCM and BMS/VCU
Motorcycle ECM cloning and programming, dedicated package
ECM, TCM and BCM for commercial and heavy diesel vehicles
Airbag, Battery Reset and SAS (steering angle)
From mid 2020 Bosch built much stronger security into MG1 and MD1 ECUs, the ones sitting in a huge share of today's BMW, Mercedes, VW Group, Ford, Stellantis and Isuzu vehicles. A programmer can still talk to the ECU, but the protected calibration area is simply shut. Without unlocking it you cannot read the original file and you cannot write a modified one.
Until now the answer was to pull the ECU out, ship it to a specialist unlock service abroad (AutoTuner, FEMTO and similar), wait a few days and get it back. That costs shipping, it costs vehicle downtime, and there is always the risk the module gets lost or damaged on the way.
- Remove the ECU from the car
- Ship it to an unlock service abroad
- Wait several days
- Get it back, only then start work
- Remove the ECU
- Unlock it on your own bench
- Read, edit and write
- Back in the car the same day
The ECUs announced for the first wave
OBDSTAR says more models are on the way.
What ECU MASTER is
The OBDSTAR ECU MASTER is OBDSTAR's first professional ECU Flasher that runs off a computer. It is built for cloning, reading, writing and repairing engine (ECM), transmission (TCM) and body (BCM/BSI) modules, across a wide range of passenger cars, EVs, motorcycles and heavy commercial vehicles: trucks, tractors and off-highway equipment.
It works in OBD, BENCH and JTAG/BDM, and ships with CAN-FD, MP001 and P003+ built into the unit. For most jobs that means no separate external adapters to buy.
Two ways it pays for itself
- Module cloning: read the data off the original module, write it to a replacement, done. A cheap, fast answer to ECU, TCM and BCM faults.
- Master level chiptuning: once you hold the open memory file, performance work is on the table. Do it yourself or through any tuner, with nobody locking you in.
Full coverage table
Pick a software package, then a category. The search box filters every category inside the package you selected. For reference only, subject to software version.
The list comes from manufacturer data and gets updated with software releases. You can also download the full list as an Excel file. For a specific module, just ask us.
ECU MASTER vs DC706 vs G3 FULL
An honest comparison: on many functions the fully activated G3 is an exact match. The real difference is trucks and the platform.
| Feature | ECU MASTER | DC706 | G3 FULL |
|---|---|---|---|
| Passenger ECM/TCM cloning | Yes | Yes | Yes, identical coverage |
| Motorcycle ECM cloning | Yes, package B | Partial | Yes, near identical |
| Trucks, tractors and HD | Yes, package C | No | No |
| Airbag, Battery and SAS reset | Yes, package D | No, and cannot be added | Yes, on the full version |
| MP001 programmer | Built in | Bought separately | Included in the kit |
| CAN-FD | Built in | Needs an adapter | Built in |
| Marine (boats and jet-ski) | No | Yes | IMMO only |
| Platform | Windows PC | Standalone tablet | Standalone tablet |
This comparison was checked against the official coverage lists: passenger car ECM cloning is identical between the G3 and the ECU MASTER (2,050 entries on both), and on motorcycles the gap is only 25 entries in the ECU MASTER's favour. The DC706 is still a good pick if you need portability and want to work without a laptop.
Technical specifications
| Operating System | Windows 10 or above |
|---|---|
| CPU | STM32H723, STM32F407 |
| Protocols | CAN (ISO 11898), J1708, ISO 15765, SAE J1939, ISO 9141, ISO 14230 (KWP2000), SAE J1850 and more |
| Read/Write modes | OBD, BENCH, J-TAG/BDM |
| Working voltage | DC 14V / 24V (supports up to 26V / 5A from an external supply) |
| Working temperature | -10°C to 55°C (14°F to 131°F) |
| Storage temperature | -20°C to 70°C (-4°F to 158°F) |
| Weight | About 0.7 kg |
| Dimensions | 176 x 115 x 31.7 mm |
| Warranty | 1 year. Software upgrade period: 1 year from the registration date |
Standard accessories
Optional accessories, sold separately
Demo videos
Downloads
These files are open to download, even before you buy
