Godiag - GT100+ - OBD II Break Out Box ECU Connector With Display & CANBUS Protocol

Brand New Godiag GT100+ OBDII Break Out Box ECU Connector

The Godiag GT100+ is the latest professional testing platform for OBDII communication detection, ECU maintenance, programming, and diagnosis. It’s especially useful for situations where all keys are lost, allowing forced activation of the instrument cluster and anti-theft system.

Equipped with a real-time voltage and current display, it helps technicians quickly evaluate the ECU’s working condition and avoid data loss or module lockout.

Key Features & Functions

• Protocol Communication Detection – Convert OBD2 interface into 16-pin detection, ensuring proper communication between vehicle and diagnostic tool.

• ECU Connection – Supports single or multiple ECU module connection for bench testing, programming, or diagnosis.

• All Keys Lost Support – Enables forced activation for VW, Porsche, Mitsubishi, Toyota, and more via short-circuit functions.

• Power Supply Protection – Maintain ECU memory when replacing vehicle batteries to prevent data loss or immobilizer lock.

• Voltage & Current Monitoring – Real-time display ensures safe diagnosis/programming (warns below 11V).

• Protocol Support – CANBUS, K-Line, PWM, VPW, and KWP2000 supported.

• Long OBD2 Cable – 1.4 meters, solving short cable or tight port issues.

• OBD1 Compatibility – Converts OBD1/special diagnostic ports into OBD2.

• BMW CAS4 / FEM/BDC Platform Testing – Confirm programmed keys work correctly.

Indicator Pinout (OBDII)

• Pin 4: Power Grounding

• Pin 5: Signal Grounding

• Pin 6: CAN High

• Pin 14: CAN Low

• Pin 16: Car Battery Positive

• (Other pins available for manufacturer-specific or short-circuit activation use.)

Specifications

• Diagnostic Port: OBDII

• Working Voltage: DC 9V–24V

• Power Consumption: 0.5–0.6W

• Adapter Power: Input AC 100–240V / Output DC 12V 1A

• Operating Temp: -20°C to 70°C (-4°F to 158°F)

• Storage Temp: -40°C to 85°C (-40°F to 185°F)

• Dimensions: 23cm x 18cm x 7cm

Package Includes

• 1 × GT100+ Main Unit

• 1 × OBD 2-in-1 Extension Cable

• 1 × Colored Jumper Cable

• 1 × 12V Power Supply

• 1 × 120Ω Resistance Plug

• 6 × Banana Plugs

• 24 × Wire Accessories (Dupont 2.54mm female pins)

Compatibility

Works with major diagnostic/programming tools:

• Lonsdor

• Autel IM608

• VVDI2

• CGDI

• ACDP

Warranty

• Main Unit: 1-Year Warranty

• Cables, wires, consumables: No Warranty

• Car Diagnostic Laptops: 3-Month Warranty

• Software/Data Hard Disks: No Warranty

⚠️ Important Note: Key programming machines are non-returnable after registration.

GODIAG GT100+ Functions Introduction

- By connecting the vehicle and diagnostic tool via OBDII, Godiag GT100+'s LED will indicate whether the OBDII diagnostic interface has a good communication with the car. 
- Monitor the voltage of vehicle OBDII interface and display it in real time. If it is less than 11V, please stop the diagnosis and programming to avoid the vehicle being unable to start/data loss/module locked.


Indicator Meaning: 

 
1) Used to check whether the diagnostic / programming / coding tool can send communication signals.
 
 
2) ECU connection: single module connection
 
GODIAG GT100+, connected to a single ECU module, is convenient for a user to do the single-module diagnosis and programming.
 
3) GT100+ program key for VW, Porsche, Mitsubishi etc with all keys lost - activate the instrument or immobilizer module.

A. To program VW 4th generation / 5th generation Lost all keys (for example: new A6L Touareg A4 Q5 A7), please use GT100+ to short-circuit banana connector PIN 16----PIN 1 to lit up the dashboard, aft that use the key programmer tool to connect with the female adapter of GT100+ for data collection. Some vehicle dashboards won't be lit up, but data can also be collected, for example: A6L Q7.
B. To replace the engine ECU of Toyota or to use some key programmer to program Toyota when all keys lost, it needs to short-circuit PIN13-PIN4
C. To program Mitsubishi key with all keys lost or to set OBDII when all remote key lost, please short-circuit PIN1-PIN4.
D. To program Porsche Cayenne key with all keys lost or with all remote key lost, please short circuit PIN3-PIN7.
 
4) Voltage and Current Value Display function

On bench connect the ECU module by using the banana connector or db25 dedicated ECU interface, and Godiag GT100+ will display the voltage / current value.
The user can intuitively see the current status of the ECU. There is no current display or The actual displayed current is inconsistent with the engineer's expected current, then you can immediately check whether the wiring is wrong, if the wiring is correct, he can judge that the ECU may be broken, so there is no need to perform diagnostic communication and can directly repair the ECU.
 
If it shows too much current, then you can also determine if the cable is wrongly connected or the ECU is broken.

 

5)GT100+ will display CANBUS, K-Line, Pwm, Vpw+, KWP 2000 protocol communication.

GT100+ Pin 1, 9, 3, 11 12, 13, 8 (corresponding to the yellow banana connector on the machine）, these non-standard obd2 protocol interface may display CAN BUS or K-Line communication protocol. GT100 can only display K- Line, Pwm, Vpw+, KWP 2000 protocol.



6) Quickly communicate with a single ECU on bench by connecting with the ECU diagnostic / programming tool.[Which allow the engineers or technicians to complete the job on bench, also keep away the risk of data loss in other modules when directly testing on the vehicle.]

 
 
7.)Multiple vehicle ECU module connecting. [It's aimed at solving the problem of engineers and technicians who need to connect multiple ECU during programming a module, such as connecting to multiple ECU modules for key programming]

 

8.)Replace the auxiliary power supply for the battery - uninterruptible power supply connecting mode.
Since there's failure or missing antitheft remote control data of some vehicles when the battery is dismantled, the auxiliary power supply aims at supplying power to the vehicle through GT100+ before replacing the battery to sustain the power supply to the vehicle. It guarantees the vehicle ECU is power connected during replacement of the battery.

 

9) The OBD2 cable of GT100+ is as long as 1.4 meters, which will solve the problem that the diagnostic tool cable is not long enough or the vehicle diagnostic port is too narrow to connect.
Please connect GT100+ first, turn on the power switch and you will see the voltage on the screen which can tell whether the power supply of the vehicle is normal. [Which keep away the risk of burning out the diagnostic & programming tool due to the modified vehicle OBD2 port]

 

10) Convert OBD1 diagnostic port to standard OBD2 diagnostic port.  For old OBD1 vehicles or special diagnostic port, please connect GT100+ through the banana plug and DB25 jumper. 
 
11) GT100+ will convert the OBD1 port of special truck to the standard OBD2 diagnostic port according to the protocol.

 
 
12)Work together with BMW CAS4/CAS4+Programming Test Platform, it's used to test whether the programmed key works with CAS4 normally

 

13) Work with BMW FEM/BDC Programming Test Platform

 
14) Full package of Accessories
Compared with other breakout box, Godiag GT100+ has come with full package of accessories like DB25 jumpe cable, 24pcs wire cable, 6pcs Banana plug which can simplify your work
 
15) More connectors and dedicated modules are under development, please wait...

 

Hardware Connection Diagram: