I cannot locate the DATA Problem

Hi,

The only serial data line related to the DDM is from the body control module. I attached the wiring schematic below that shows how they are joined. I highlighted the wiring.

What I noticed is there is a splice under the right rear seat that may have been damaged or disconnected. This is where I would suggest checking. If the connection is good, disconnect the battery and check for continuity in the wiring.

Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-wiring

Let me know what you find or if you have other questions.

Take care,

Joe

See pics below. Note: It was one page long. I had to cut it in half to make it readable, but I did overlap the two so you can follow from one to the next.

Sounds good. Let me know what you find when you do the additional tests.

Take care,

Joe

The one you are looking for should be solid light green. I is pin B-1 in connector 1. The connector will be gray in color.

Take a look at the pics below and let me know if it helps.

Take care,

Joe

See pics below.