«+»
«-»
Car battery
Fuse
(1А)
«GND»
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
OBD II
CAN L
CAN H
4
2
3
1
14
7
13
6
12
5
11
4
10
3
9
8
2
1
6
5
4
3
2
1
Figure 47. Connection diagram to OBD-II
In some vehicles it is necessary to search for the needed bus in the wiring which goes to the dashboard, to
the control controller or in other places.
The safest way to connect to the CAN bus is to connect it through a contactless reader. Such a reader allows
to receive data from the CAN bus of the car without physically connecting and breaking the insulation of the wires,
thus avoiding problems with warranty service for new cars. The disadvantage of connecting through a contactless
reader is the inability to receive data from the CAN bus on request from the device. As a result, some parameters
become unavailable for receiving by the terminal on some cars
Figure 48. Connection to CAN through contactless reader
It is possible to receive data at request only if the vehicle CAN bus wires connection to the CAN interface of
the device is direct.
Summary of Contents for SIGNAL S-2651
Page 16: ...Figure 19 Figure 20...
