01J, Constantly Variable Transmission (CVT)

P1850 Data bus drive 10); Missing Message from Engine Control Module (ECM)

Notes on DTC 18258/P1850:
^ Condition for DTC recognition: The Transmission Control Module (TCM) is not receiving a message from the Engine Control Module (ECM). However, communication with the ABS control module and the instrument cluster is working.
^ The exchange of data and information between the Engine Control Module (ECM), ABS control module, Transmission Control Module (TCM) and instrument cluster is carried out over what is called a CAN bus. All information signals are transmitted over 2 leads.