Took to the GM dealer and they changed the internal mode switch. During final testing the same code came back. It appears that when we plug the Dakota Digital BIM module into the OBD2 port it causes the code. Dakota's engineers on it now and I have no doubt they will come up with a fix. The high tech modern age we live in. Another thing to complicate things is the code P18C2 is now a "permanent" code. Yes its a thing. Google it.
Last edited by vet57air; 06-08-2022 at 10:49 AM.
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