Godiag GT108 OBDI-OBDII Conversion Adapter User Manual

 GODIAG GT108 Super OBDI-OBDII is an universal conversion adapter that can convert the OBDI diagnostic interface of cars into standard OBDII through DIY wiring interface. Read this user manual to learn how to use Godiag GT108 for the first time.

Godiag GT108 Outlook Instruction

OBD2 female interface

Indicator light group

GND4, GND5 switch

IGN switch

DC power interface

2.3.GND4.GND5.6CAN-H.7K-Line.8.9.10.11.12.13.14CAN-L.15.BAT+.O-IGN interface

How to use Godiag GT108?

Step1.Find the definition of the diagnostic interface (find the maintenance manual of your own vehicle or search online.), or see the definition diagram of the corresponding diagnostic interface on Godiag GT108 manual.

Step2. According to the interface definition, find out the connection line needed by your car, and connect to the GT108 adapter according to the definition. (Use a screwdriver to lock the terminal.)

Step3. Connect the connected diagnostic cable to the vehicle OBD1 diagnostic interface according to the definition. (Connect GND 4 or GND5 first, and then connect BAT+. If the power cable is connected correctly, the POW light of the GT108 host will light up. If the vehicle diagnostic interface does not have power, please connect the car battery to the DC power connector of GT108 with the battery cable. If the vehicle needs the ignition signal, connect the O-IGN line, and press the IGN switch, the corresponding IGN light will light up, and the O-IGN line will output the ignition power signal.)

Step4. Connect the communication line CAN or K-line to the diagnostic interface. (Note: If it is the truck diagnostic software added by the car diagnostic equipment, you need to buy a GT106 24V to 12V Adapter.)

Step5. Connect the diagnostic device to start diagnosing the vehicle.

Note:

If you cannot find the definition for your own vehicle diagnostic interface, you can first find out thepower supply of the diagnostic interface.

First use the black battery clip on the battery connection cable toconnect the negative pole of the battery.2.

And then use the BAT+ line to connect to the diagnostic interfaceto find the power supply.

You can also use a multimeter to find the diagnostic interface power supply. Thedefinition of the diagnostic interface can also be judged by the GT101 Pirt Electric Circuit Tester

Quick Operation Guide

How to find diagnostic interface definitions?

• View through vehicle manual, maintenance manual or GT108 manual.
• Search for vehicle definitions online.
• Use the GT101 Pirt electric circuit tester device to test the diagnostic interface.

Follow the found interface definition, connect the corresponding diagnostic line according to the pin shape of the diagnostic interface.

• Connect GND first.
• Then connect BAT+.

The POW light of GT108 host will light up.

Connect the diagnostic equipment to start diagnosing the vehicle.

How to connect Godiag GT108?

Car Connection Method

Truck Connection Method

Truck Connection with GT106

Motorcycle Connection Method

The Connection Method of Mine Vehicles, Tractors, Boats and Generators

ECU Connection Method

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