Hyundai Genesis (DH): Automatic Transmission Control System / Description and Operation
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 |
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
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.
Other information:Inspection
1.
Ignition "ON".
2.
Turn on the head lamp switch.
3.
Check that the aim of the head lamp changes smoothly when the head lamp leveling device switch is turned on.
4.
If it does not operate well, check the connector and terminals to make sure that they are connected. Description
An in-car air temperature sensor is located in the crash pad lower panel.
The sensor contains a thermistor which measures the
temperature of the cabin. The signal determined by the resistance value
which changes in accordance with perceived inside temperature, is
delivered to the heater control unit and according to this signa
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