P1860 Code Chevy Silverado

Q&a: troubleshooting chevy 2wd fault code p1860 for shifting issues Trailblazer/envoy p0740, p0753, p0758, p0785, and p1860 P1860 code

I have a Chevrolet Silverado 2500 HD with a 6.6 diesel. I have a check

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