Hi Folks,
I have an update in my efforts to troubleshoot the B1000 Symptom 35 DTC.
I was able to find and access the BCM, and I removed each of the connectors, and each one had clean and straight pins. All wiring appears to be in good shape, as least as far a one can see from the clusters of wires taped together.
While I was there, I took a photo of the BCM part number, in case I need to replace it. This part number, 15943678, is not listed in Rock Auto or in GM Parts Direct, so I did a broad Google search. Turns out, this part number appears to be a re-manufactured Dorman unit.
I used the Tech 2 to reset the DTC codes, and I'll drive the truck around later today or tomorrow, in order to see if the code comes back (which I believe that it will).
If the code does come back, what are your recommendations for my next steps? Purchase an ACDELCO 25835966 BCM from Rock Auto?
I also took another photo of the Tech 2 DTC summary readout, and for the B1000 Symptom 35 code, it has DLC Pin: 14, 6 at the bottom of the readout. Any idea what this is, and is it something that would be useful to me for additional troubleshooting?
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Thoughts and suggestions welcome.