(Solved) Nexiq USB link with CAT ET connection error 149

I’m using a NEXIQ USB Link with CAT Caterpillar ET 2011b and I need some help with connection settings.

Solution 1:

you can only connect with Nexiq engines on setting siguiebnte is the way:

Run ET

Go to and look for the connection prefgerencias (RP1210 mechanism Approved)

Ok, you ready configured to work with the Nexiq.

Solution 2:

First use a Nexiq -> Device tester , disable bluetooth .

Solution 3:

Utilities -> Preferences -> Communications -> RP1210 Compilant Device then Advanced Choose USB Nexiq Link

If it doesn’t work,

Reinstall drivers and verify that you have this in the device manager

JUNGO USB LINK WINDRIVER if you missing one of this it wont work

Solution 4:

Select ” USB-Link J1708 (137) – NEXIQ (NNT, Inc.) ” for wired connection.

There are several nexiq options to choose from. You may have selected the wrong one. Here is a link for the nexiq user manual if you don’t have it already.

Solution 5:

From the connection menu select :

1.  Interface module 2.  Serial to USB PORT number

Solution 6:

Note: Heavy Duty Scanner Nexiq USB link with cat ET 2011b can not and excavator pump control the ECM / display communication (CDL Protocol) , support the engine ECM communication (J1939 protocol)

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