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CAT Caterpillar ET Diagnostic Adapter 3 after device connected with Vehicle,the indicator light is o

Frequently reported by North American customers
CAT Caterpillar ET Diagnostic Tool(9PIN connector)connect with Cat Vehicle,CAT Caterpillar ET the indicator light is off and the device can not work. Picture as below:

Have replaced with new CAT Caterpillar ET Diagnostic Tool,the result still same.
We checked the connector of CAT Vehicle,found the problem:
It turns out that some of the CAT Vehicle connector are not standard, can not be match our 9 pin connector of the device.
The connector of our customer’s CAT Vehicle as below:

CAT Caterpillar ET Diagnostic Tool 9PIN connector as below:

The comparison is as follows(customer’s Vehicle connector left,CAT Diagnostic Tool 9PIN Connector cable right):

Vehicle connection is:
A – Battery Negative
B – Battery Positive
C – J1939 Data Link+
D – J1939 Data Link-
E – J1939 Shield
F – J1587 Data Link+
G – J1587 Data Link-
H – not connected
J – not connected

CAT 诊断工具 9PIN 电缆是:
A – Battery Positive
B – Battery Negative
C – J1587 Data Link+(J1708 Data Link+)
D – J1587 Data Link-( J1708 Data Link-)
E– J1939 Data Link+
F – J1939 Data Link-
G – CDL+
H – CDL-
J(I) – not connected

对比:

某些 CAT 车辆的连接器与我们的 CAT 诊断工具不匹配 9PIN 连接器。 甚至电源的正负极 是相反的。 所以设备将无法工作并从电源获得电源 车辆。

如何解决此类问题:
客户需要将正确的诊断连接器连接到 CAT 设备的相应 9 针诊断连接器与 电缆。 这样设备就可以从车辆上取电并正常工作。


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