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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 1897 (8HP75 Automatic Transmission - DTCS P1D91-00 To U1477-00 - 2500HD & 3500HD) >> DTC Troubleshooting >> U1267-00-No Valid Data From ESM On Can-C Or Can-Dpt >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2019 RAM 3500 HD and 2019 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

The Transmission Control Module (TCM) monitors the Controller Area Network (CAN) C and CAN DPT circuits for failures. This Diagnostic Trouble Code (DTC) sets when there is a problem with both CAN busses and the TCM can not receive data from the Electronic Shift Module (ESM) to determine the shifter position.

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