GODIAG GT100 OBDII 16PIN Protocol Detector Breakout ECU Connector OBDII BreakOut Box

GODIAG is our own brand, if you need large quantities, please feel free to contact us for better price.

GODIAG GT100 is a latest testing platform for OBDII protocol communication detection and ECU maintenance / diagnosis / programming / coding.
It can convert the car OBD2 interface into 16 pin for signal detection and electrical level conversion. Able to connect the single modules or multiple
modules of the vehicle. It can be connected with any diagnostic tool to tell whether the car communication is good or not. It can also supply power to
the car when you change the battery to avoid the vehicle control module data being lost, automatically locked, the key remote control fails and the fault light turns on.


Godiag GT100 Features:

-ECU connection
-OBDII Protocol Detector
-The cable can be extended
-Optional dedicated adater
-Comprtible with lost of devices
-Convert OBD1 diagnositc interface to the standard OBD2 diagnostic interface
- Save ECU data when replacing vehicle battery.
-Guarantee period: One year warranty.

How to use GODIAG GT100 OBD II Break Out Box ECU Connector

1. OBDII Protocol Detector & communication detection


1). Connect GODIAG GT100 to the OBDII diagnostic port of the car.
2). When the device displays the voltage, turn on the power switch of GODIAG GT100.
3). Then connect to the diagnostic tool, when the tool is communicating with the car, the LED indicator of corresponding protocol will light up or flash. ( If the CAN protocol is detected, it will have the maximum brightness. When the communication is successful, the corresponding CAN-H and CAN-L will dim or twinkling weakly)

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.


1). Connect the ECU with the color jumpers. (If the ECU is CAN protocol, please check whether you will need to connect a 120 ohm resistor.)
2). The Godiag GT100 can be powered by connecting to the OBDII diagnostic interface of car, or by an AC power adapter.
3). To diagnose and program for a single ECU by connecting the diagnostic tool or ECU programmer.

3. Banana plug extension connection:
Extend the car's OBDII 16pin interface to tell you whether the OBDII interface connection is good or not, which is convenient for the test of OBDII interface voltage waveform.

4. Convert OBD1 diagnostic interface to the standard OBD2

Use the connector to convert the OBD1 interface into obd2 interface according to the diagnostic interface communication protocol.



5. Connect multiple ECU control modules at the same time, which is convenient for the professional engineers to detect and maintain.

6. When to use the extension cables: The space of the diagnostic interface location is too narrow to connect to the diagnostic tool, or the user find that the diagnostic cable is not long enough during maintenance. It can be extended by 1.2 meters.

7. Able to power the car when replacing the used battery.
1). Prepare battery A to supply power by connecting to No. 16 / 4 / 5 holes of Godiag GT100 & to the OBD2 diagnostic interface of the car.
[Notice 1. Turn on the power switch of Godiag GT100. 2. Don't turn on the ignition switch, don't start the car]

2). Then replace the brand-new battery B with the used battery in the car, which will ensure that the car has fully power to prevent data loss and audio lock-up or the malfunction due to lack of power to the ECU control module.


8. The dedicated adapter will be released (help GT100 connect to the special ECU module)


Hardware Connection Diagram:


Indicator Light Meaning

1. Manufactory custom 2. SJE1850 wire 3. Manufactory custom 4. Power grounding 5. Signal grounding 6. SAEJ2284《CAN》high 7. ISO9141-2&iso, DIS4230-4K wire 8. Manufactory custom

9. Manufactory custom 10. SJE1850 wire《bus-> 11. Manufactory custom 12. Manufactory custom 13. Manufactory custom 14. SAEJ2284《CAN》low 15. ISO9141-2 & ISO/DIS 4230-4L wire 16. Car battery positive

GODIAG GT100 OBD Breakout Box Specifications:

Diagnostic interface	OBDII
Working voltage	DC 9V-24V
Product power	0.5-0.6W
Adapter power input	AC100v-240v output DC12V 1A
Operating temperature range	-20 to 70 °C (-4 to 158 °F)
Storage temperature range	-40 to 85 °C (-40 to 185 °F)
Product packaging size	23*18*7 (cm)

Package includes:

Host: 1pc
OBD 2-in-1 extension cable: 1pc
Colored jumper cable: 1pc
Power supply 12V: 1pc
Resistance 120 ohm: 1pc
Banana plug: 6pcs
Wire accessories, Dupont 2.54mm connector female pins: 24pcs