User's Manual

GV500 User Manual
TRACGV500UM001 - 8 -
2.3. Interface Definition
The GV500 has an OBD II connector. It contains power supply and interfaces of CAN bus, K-line,
L-line and J1850 bus. The sequence and definition of the OBD II connector are shown in
following figure:
Figure 2. The OBD II connector on the GV500
Table 4: Description of OBD II Connections
Index Description Comment
1 PWR External DC power input, 8-32V
2 L-line L line of ISO 9141-2 and ISO 14230-4
3 CAN-L CAN-L line of ISO 15765-4
4 J1850- Bus negative line of SAE J1850
5 K-line K line of ISO 9141-2 and ISO 14230-4
6 CAN-H CAN-H line of ISO 15765-4
7 GND Power and digital ground
8 GND Power and digital ground
9 J1850+ Bus positive line of SAE J1850
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