GODIAG GT100+ OBD2 Breakout Box & ECU Bench Connector with Current Display

Shipment Period: 1-7 days

GODIAG GT100+ Highlights

• 1-year warranty
• Used with KESS V2 and Ktag
• ECU connection + OBDII Protocol Detector + Electronic Current Display
• The cable can be extended, with an Optional dedicated adapter
• Compatible with tools from LAUNCH, AUTEL, FOXWELL, XHORSE, VXDIAG, CGDI.....
• Convert OBD1 diagnostic interface to the standard OBD2 diagnostic interface
• Used with BMW-CAS4 Adapter test platform to detect whether the CAS4 key programming works perfectly or not

GT100+ Pro vs. GT100

The GODIAG GT100+ is an advanced testing platform for OBDII protocol communication, designed for ECU maintenance, diagnostics, programming, and coding. In all-keys-lost scenarios, it can force the instrument and anti-theft system to activate via short-circuiting.

Equipped with voltage and current displays, GT100+ allows technicians to easily monitor the real-time working status of the ECU. It converts the vehicle’s OBD2 interface into a 16-pin connection for signal detection and electrical level conversion, supporting both single-module and multi-module connections.

GT100+ works with any diagnostic tool to verify vehicle communication and can also supply power during battery replacement, preventing data loss in control modules, avoiding automatic locking, key remote failures, and warning lights.

 
 
GODIAG GT100+ Function and Operation Guide 

- By connecting the vehicle and diagnostic tool via OBDII, Godiag GT100+'s LED will indicate whether the OBDII diagnostic interface has good communication with the car. 
- Monitor the voltage of the 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

When connected on the bench using the banana connector or DB25 dedicated ECU interface, the GODIAG GT100+ displays the real-time voltage and current of the ECU. This allows technicians to intuitively monitor the ECU’s status.

If the current is not displayed or differs from the expected value, it may indicate incorrect wiring. Once wiring is confirmed correct, the technician can conclude the ECU may be faulty, eliminating the need for full diagnostic communication and allowing direct repair.

Conversely, if the current is too high, it can also indicate improper cable connections or a damaged ECU, helping quickly pinpoint issues and improve repair efficiency.

 

5.) On the GT100+, pins 1, 3, 8, 9, 11, 12, and 13 (corresponding to the yellow banana connectors) may be used for non-standard OBD2 protocol interfaces, which can display CANBUS or K-Line communication signals. The GT100+ supports and displays K-Line, PWM, VPW, and KWP 2000 protocols, while the standard GT100 can display CANBUS, K-Line, PWM, VPW, and KWP 2000 protocol communications.

6.) Quickly communicate with a single ECU on the bench by connecting it to a diagnostic or programming tool, allowing engineers or technicians to complete the work safely off-vehicle while preventing data loss in other modules during on-car testing.

 
 
7.) Multiple ECU Module Connection: Designed for engineers and technicians who need to connect multiple vehicle ECUs simultaneously, such as when performing key programming or multi-module diagnostics.

 

8.) Replace the auxiliary power supply for the battery - Uninterruptible power supply connecting mode. [Since there’s failure or missing anti-theft 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.) For old OBD1 vehicles or special diagnostic port, please connect GT100+ through the banana plug and DB25 jumper. The OBD1 diagnostic port or special diagnostic port can be transferred to the standard OBD2 diagnostic port.
 
11.) GT100+ will convert the OBD1 port of the special truck to the standard OBD2 diagnostic port according to the protocol.

 
 
12.) For the BMW CAS4/CAS4+Programming Test Platform, it’s used to test whether the programmed key works with CAS4 normally.

 

13.) For the BMW FEM/BDC programming test platform.

 

 
14.) More connectors and dedicated modules are under development, please wait...

 

Hardware Connection Diagram:


 
Godiag GT100+ Parameter
 

Package includes:
1pc x GT100+ Host
1pc xOBD 2-in-1 extension cable
1pc xColored jumper cable
1pc xPower supply 12V
1pc xResistance 120 ohm
6pcs xBanana plug
24pcs xWire accessories, Dupont 2.54mm connector female pins