I currently use Cat, Detroit and Volvo laptops for work and a Cummins system in my truck and rely on the Nexiq data connection for everything. It works great!

I recently purchased a Nexiq 3 for my 1999 Dodge/Cummins. I noticed that the 1999 harness uses a 3 pin triangle connector and the 2001 harness uses a standard 3 pin connector. Both are located near the ECM. However, the Nexiq adapter only comes with the triangle 3 pin connector and not the standard 3 pin.

I tried to access the ECM on my 1999 model yesterday and it would not work and I got a communication code error regarding the check engine light. I was able to fix the error on another device.

FYI: I'm connecting a 1999 datalink to a Quadzilla and I noticed that the triangular 3-pin connector only has 2 wires.

What am I doing wrong? Why isn't it working as expected? Any suggestions would be greatly appreciated!

Posted by: Emily white at 06:46 AM | No Comments | Add Comment
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