DDub248

I'm leaning towards one of these being the issue as well, as well as the battery potentially. Previous owner said the battery was changed last october but you never know... For that short positive off the battery would it be worthwhile to change the whole fuse block along with that short cable?

Thanks! I checked that ground and no luck, but I'll go ahead and check the remainder of the grounds on the truck

I'm struggling with a ton of lost connection codes, and modules that are not reachable. The modules that cannot be accessed (scanner says they don't exist) is the airbag and chassis control module. Some of the codes which show up are: U1510 - Lost communication with device on LIN bus U18A2 - Lost communication with fuel pump driver control module U0422 - Invalid Data Recieved from Body Control Module U0137 - Lost communication with Chassis Control Module - Auxiliary U0151 - Lost communication with Inflatable Retraint Sensing and Diagnostic Module P2537 - Ignition Accesory Switch Circuit Low Voltage U0415 - Invalid Data Received From Electronic Brake Control Module U1556 - Lost Communication with Device on LIN Bus Also many short to battery codes on light circuits on the BCM Additional symptoms are radio screen off, AC not cold, remote start doesn't work. I checked the dash G218 grounds and the battery ground to the frame and all seemed good. Battery voltage is over 14V. I'm thinking potentially a bad BCM, or a bad battery ground strap. Those are the last 2 things that I can think to check before taking it to the stealership Any help is appreciated. Thanks!