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Fcar Technology Co., Ltd mainly production and sell professional auto diagnostic and maintenance tools export around the world. brand product include F3-W Gasoline auto diagnostic tool, F3-D diesel car diagnostic scanner,F3-G diesel gasoline vehicles diagnostic equipment,we provide good after-sale service and technical support.Details please visit: ——www.fcar.com
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How to use Fcar Jumper to diagnose connectors in different shapes of pin for most vehicles
By fcar at 2014-07-25 02:40:11
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Fcar automotive diagnostic tool is equipped with various kinds of diagnostic connectors in different shapes of pin for most vehicles. Yet for part of models, Connection failure occurs although used corresponding diagnostic connectors due to disunity of diagnostic connector connection methods or artificial damage, refitting or wrong connection of diagnostic connector. For such cases, you can use jumper box for jumper connection.
Introduction of Jumper box and jumper
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Introduction of Jumper box：
There are 15 jacks on jumper box 15：1、2、3、GND、6、7、8、9、10、11、12、13、14、15、VCC。 |
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Definition of each jack on jumper as below： |
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1#：K line； |
2#：K line； |
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3#：K line； |
6#：CAN-H； |
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7#：RSR232+、J1708+、K line； |
8#：K line； |
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9#：K line； |
10#：K line； |
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11#：K line； |
12#：K line； |
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13#：K line； |
14#：CAN-L； |
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15#：RSR232-、J1708-、L line |
GND: Ground wire（Negative） |
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VCC：Power line（Positive）； |
POWER:Power indicator |
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Introduction of jumper：
There are 16 jumpers of red, black and yellow color in total in assembly box.
For the convenience of distinguish ,
red jumper normally connect to power positive;
black jumper connect to power negative,
yellow jumper connect to signal wire. There are 4 kinds of jumper pins: sheet pin, cylindrical, square hole,
round hole, for convenient use to various kinds of diagnostic port pin shape.
Choose appropriate one according to pin of vehicle diagnostic connector pin |
Various kinds of Communication Protocols
Name of Protocol |
Name of communication line |
Reference voltage range |
Hole number of jumper
box to be connected |
K line communication |
K |
1V lower than battery voltage |
7 |
CAN communication |
CAN-H |
2.5V＋0.25V |
6 |
CAN-L |
2.5V－0.25V |
14 |
J1708 communication |
J1708-A |
3V～5V |
7 |
J1708-B |
0V～2V |
15 |
RS232 communication |
RS232-TD |
（-9V）～（-5V） |
7 |
RS232-RD |
0V～0.7V |
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