Hyundai Genesis (DH): Automatic Transmission Control System / Description and Operation

Hyundai Genesis (DH) 2013-2016 Service Manual / Automatic Transmission System (SBC) / Automatic Transmission Control System / Description and Operation

Description
Automatic transmission system relies on various measurement data to determine the current control status and extrapolate the necessary compensation values. These values are used to control the actuators and achieve the desired control output. If a problem with the drivetrain, including the transmission, has been identified, perform self-diagnosis and basic transmission inspection (oil and fluid inspection) and then check the control system's components using the diagnosis tool.
Control System Composition

Fault Diagnosis
It features a fail-safe mechanism that allows a vehicle to be driven home or to a dealer in the event of a transmission failure.
The limp home mode is engaged if the transmission malfunctions. In this mode, the transmission operates at a minimal functionality level, making it possible for the vehicle to reach a service center.
Fail-Safe: Allows the vehicle to be driven safely in the event of a malfunction.
Limp Home: Maintains minimal functionality (*) in the event of a malfunction, making it possible for the vehicle to reach a service center.
(*) Minimal Functionality: Drive (fixed gear setting), Reverse, and Neutral
Self-diagnosis
TCM is in constant communication with the control system's components (sensors and solenoids). If an abnormal signal is received for longer than the predefined duration, TCM recognizes a fault, stores the fault code in memory, and then sends out a fault signal through the self-diagnosis terminal. Such fault codes are independently backed up and will not be cleared even if the ignition switch is turned off, the battery is disconnected, or the TCM connector is disconnected.
   

    Adjustment TCM Learning When shift shock occurs or parts related with the transmission are replaced, TCM learning should be performed. In the following case, TCM learning is required.

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    Hyundai Genesis (DH) 2013-2016 Service Manual: Rheostat Repair procedures

    Inspection 1. Disconnect the negative (-) battery terminal. 2. Remove the crash pad lower panel. (Refer to Body - "Crash Pad Lower Panel") 3. Remove the lower crash pad switch assembly (A) after disengaging the mounting clip. 4. Remove the rheostat switch connector (A).

    Hyundai Genesis (DH) 2013-2016 Service Manual: Description and Operation

    Description Control Function This system supports 2 kinds of main function. (Rear video display function, Expected trace of wheels display function) The Rear video display and the expected trace of wheels display operate according to Vehicle speed condition and Gear position.

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