<p>GODIAG GT100 function and operation guide</p><p>-Connect the vehicle and the diagnostic tool through OBDII, the LED of Godiag GT100 will indicate whether the communication between the OBDII diagnostic interface and the vehicle is good.</p><p> -Monitor the voltage of the vehicle's OBDII interface and display it in real time. If it is lower than 11V, please stop the diagnosis and programming so that it cannot start/data loss/module lock.</p><p>1. OBD2 protocol detector and communication detection</p><p>Connect GODIAG GT100 to the OBDII diagnostic port of the car.</p><p>When the device displays the voltage, turn on the power switch of GODIAG GT100.</p><p>Then connect to the diagnostic tool. When the tool communicates with the car, the LED indicator of the corresponding protocol will light up or flash. (If the CAN protocol is detected, it has the maximum brightness. After the communication is successful, the corresponding CAN-H and CAN-L will become weak or flicker)</p><p>2. ECU connection: single module connection</p><p> GODIAG GT100 connected to a single ECU module is convenient for users to perform single-module diagnosis and programming.</p><p>Connect the ECU to the color jumper. (If the ECU is CAN protocol, please check if you need to connect a 120 ohm resistor.)</p><p>The Godiag GT100 can be powered by connecting to the OBDII diagnostic interface of the car or through an AC power adapter.</p><p>Diagnose and program each ECU by connecting the diagnostic tool or ECU programmer.</p><p> 3. Banana plug extension connection:</p><p>Extend the OBD216pin interface of the car to tell you whether the OBDII interface is connected correctly, which is convenient for testing the OBDII interface voltage waveform.</p><p>4. Convert OBD1 diagnostic interface to standard OBD2</p><p>According to the diagnostic interface communication protocol, use the connector to convert the OBD1 interface to the obd2 interface.</p><p>5. Simultaneously connect multiple ECU cont