Hyundai Equus: Repair procedures
Second generation VI (2009–2025) / Hyundai Equus VI 2009-2025 Service Manual / Body Electrical System / Power Trunk Module / Repair procedures
Second generation VI (2009–2025) / Hyundai Equus VI 2009-2025 Service Manual / Body Electrical System / Power Trunk Module / Repair procedures
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System Parameterization
Parameterization of the system has to be performed to find
the amount of pulses needed to open the trunk. Due to tolerances not
every car is equal. Therefore the calibration is needed for each
vehicle. Parameterization is started by pressing Trunk Inner switch and
Trunk Outer switch at the same time for approx. 4 seconds. The trunk
then will open until a blocking event is detected (normally full open
position) and then close until it reaches the latch. During closing the
HALL pulses are counted to know the travel distance. This value is
stored into EEPROM.
This value has to be inside a defined tolerance to be
considered as valid. If the value is outside of the tolerance
parameterization was not completed successfully. Parameterization has to
be done to find the full open position of a vehicle. It has to be done
for each vehicle at least once. The sequence is started by pressing
Trunk Inner switch and Trunk Outer switch at the same time. The trunk
will then open until it is blocked. Then it will close until the latch
reaches the power striker. During this closing the HALL pulses from the
motor are counted. When the latch is closed the counter of the HALL
pulses must have a value that is equal to a default value with a certain
tolerance around it to complete the parameterization successfully. If
the HALL pulse counter is outside the tolerance value the
parameterization has notcompleted successfully. In case of a successful
parameterization the new value for the full open position is stored
intoEEPROM.
System Initialization
System initialization is necessary to find the closed (0-Position) of the trunk-lid.
After Battery Power is on (Power-on stage) a initialization
has to be done to find the closed trunk-lid position. After power-on the
latch status is checked. If the latch is closed, it is assumed that the
trunk lid is also closed. Therefore the trunk lid position is set to
zero and initialization is finished. If the latch is opened it is
assumed that the trunk lid is not closed. The power striker will be run
into open position and the inner switch lamp will be switched on.
The next state is STOP. From this state the trunk can operate
like in normal behavior – except the trunk lid speed is constant and
the blocking margin is also constant (and higher than in normal
operation).
After the trunk lid has reached the closed latch position, the initialization process is finished.
A blocking event in case of a not initialized trunk leads to
state OPEN. During this operation the system is using the same default
values like in the parameterization mode. The regulation and the
blocking detection are active. The trunk can be opened / closed
electrically or manually. However if the latch reaches the power striker
the state is switched to LOCKED and the trunk status will be set to
initialized.
Description and Operation
Description
Power Trunk Lid (PTL) System : It is automatically opens and
closes a vehicle’s trunk lid and cinches the latch with the press of a
button, and also can be easily operated, using ...
Troubleshooting
Troubleshooting
Diagnosis And Testing - Power Trunk Lid System
The power trunk lid system is a complex system containing
many components. In order to perform conclusive testing, or receive
out ...
See also:
Rear Variable Damper Description and Operation
Description
The rear variable damper consists of a damper and an upper
mounting bracket. This damper determines vehicle behavior through the
acceleration sensor in the ECS ECU, and it adjusts ...
Power Window Motor Repair procedures
Inspection
Front Power Window Motor
1.
Remove (-) negative battery terminal.
2.
Remove the front door trim.
(Refer to Body - "Front Door")
3.
Disconnect the motor connector from the mot ...
If you have a flat tire while driving
If a tire goes flat while you are driving:
1.Take your foot off the accelerator pedal and let the car slow down while driving
straight ahead. Do not apply the brakes immediately or attempt to pull ...
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