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4.1.1 Connecting to the Vehicle
Based on the different configuration of the vehicle, the methods for connecting the
intelligent diagnostic tool and the vehicle diagnostic socket are divided into the following
two types:
a)
Vehicles compatible with the OBD II management system communicate and are
powered with 12V through a standard SAE J1962 diagnostic socket.
b)
Vehicles that are not compatible with the OBD II management system communicate
through a non-standard diagnostic socket and, in some cases, are powered with 12V by
a power adapter of the smart scanner or the vehicle battery.
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Connecting to an OBD II Vehicle
Connecting to an OBD II vehicle only requires the use of the test main cable, no other
connectors are required.
Connection method:
a)
Connect the male connector of the main diagnostic cable to the smart scanner and
tighten the captive screw.
b)
Attach the 16-pin connector of the main test cable to the vehicle diagnostic socket. For
the location of the socket, you can refer to the help data in the diagnostic software.
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Connecting to a Non-OBD II Vehicle
Connecting to a non-OBD II vehicle requires a combination of the test main cable and a
vehicle-specific adapter.
Non-OBD II vehicle connections can have the following two connection scenarios:
a)
The diagnostic interface connection provides communication and power.
b)
The diagnostic interface can only communicate, and needs to be connected to a power
adapter of the intelligent diagnostic scanner or the vehicle battery to obtain power
(preferred).
Connection method:
a)
Connect the male connector of the main diagnostic cable to the smart scanner and
tighten the captive screw.
b)
Find a vehicle-specific diagnostic connector and connect its 16-pin female connector to
the male connector of the main test cable.
c)
Connect the connected dedicated diagnostic connector to the vehicle diagnostic
socket.
4.1.2 Communication Failure Prompt
If the intelligent diagnostic tool cannot establish normal communication, the screen will
show a communication failure prompt message and provide corresponding inspection
instructions. Possible causes of this issue are as follows:
a. The ignition is not turned on.
b. The main cable is not well connected.
c. Faulty vehicle, data cable, or connector wiring.
d. The battery is exhausted.