7
Tips on Using DB25 Color Jumper Cable:
1. 12V (30) defined as car positive (+)
2. 12V (15) defined as car ignition with power supply
3. OBD 12V directly connected to the vehicle OBDII diagnostic port 12V
4. OBD 1.2.3.7.8.9.11.12.13 are correspondingly connected to the 1.2.3.7.8.9.11.12.13 pin port.
5. Once REL GND and GND are connected, REL OUT outputs 12V vehicle battery positive electricity.
6. K-LINE L-LINE are correspondingly connected to the 7.K-LINE and 15. L-LINE port.
4. CAN-H and CAN-L are correspondingly connected to the 6.CAN-H and 14.CAN-L port.
✓
By connecting the vehicle and the diagnostic tool via OBDII, Godiag GT100+ can check whether the
communication of the vehicle OBDII diagnostic port is normal.
✓
To monitor and display in real-time the voltage of vehicle OBDII interface. If the voltage is lower than
11V, please stop diagnosing and programming, otherwise the car will fail to start, the data is lost, the
module is locked etc because of low battery.
1.) Used to check whether the diagnostic / programming / coding tool can send communication signals.
