Power tailgate is an
electro-mechanical system designed to provide power opening and closing of
a vehicle's tailgate through the push of a button of the transmitter key
or tailgate outside handle or the master switch or local
switch.
The power tailgate
will reverse direction of travel if resistance to movement is detected
while the tailgate is being closed. If resistance to movement is detected
while the power tailgate is being opened, the tailgate will stop
moving.
| 1. |
PTG DRIVE UNIT
Power tailgate drive unit consists of a DC
motor, optical sensor, clutch, push rod, rack and wire
harness.
PTG drive unit is located in rear left on
D-pillar panel.
| A. |
Optical sensor : Provides tailgate
velocity and position
information |
| B. |
Clutch : Transmit motor power to push
rod through pinion
gear. | |
| 2. |
POWER LATCH
Power latch is located in the lower part of
tailgate panel. When tailgate reaches latching position, cinching
motor (A) will cinch the tailgate electrically. And unlatch motor
(B) unlatch the latch electrically when receive the open
signal.
|
| 3. |
ANTI PINCH STRIP (C)
During power closing or cinching, the PTG
system shall reverse to full open if an anti-pinch strip signal is
received. However, the anti-pinch strips will not work when the
Tailgate is idle in the mid-position.
|
| 4. |
PTG CHIME (D)
When a power operation cannot be performed
as requested or an obstacle has been detected.
|
| 5. |
REMOTE KEYLESS ENTRY (A)
Push the power tailgate button (A) of the
remote keyless entry more than 0.5s to open the power tailgate.
Power Open operation shall be reversed when an additional Open/Close
signal is received during power
opening. |
| 6. |
OPERATING ORDER
Switch ON → clutch on → motor operation →
pinion gear rotation → rack rectilinear motion → push rod motion →
tailgate open/close |
POWER
TAILGATE OPEN/CLOSE
| 1. |
The power tailgate will open and close
automatically if the master switch (A) is pressed more than 0.5s on
the lower crash pad.
|
| 2. |
When the power tailgate starts operation
from full closed or full open position, the warning lamp and the
chime will operate 3 times. |
| 3. |
General rules for chime
functions
| A. |
Chime & tail lamp shall operate
prior to and during power opening or closing the Tailgate : 3
Times (0.5 sec on, 0.5 sec off), after 1 chime start opening
or closing with two chimes. |
| B. |
Chime shall operate when a power
operation cannot be performed as requested except handle pull
: 1 Time (Duration 0.5 second
on) |
| C. |
Chime shall operate when an obstacle
has been detected : 3 Times (0.5 sec on, 0.5 sec
off) |
| D. |
Chime shall operate if PTG has not
reached primary latch position after a power cinch cycle : 3
Times (0.5 sec on, 0.5 sec
off) | |
POWER
TAILGATE OPERATING CONDITION
| 1. |
The tailgate will not power open when
vehicle is moving above 3 mph (5 km/h) or the gearshift lever is not
in P (Park). |
| 2. |
The power tailgate only will open with the
transmitter when doors are central locked and
armed. |
| 3. |
If the power tailgate detects an obstacle,
it would either stop or move to the full open position to allow the
object to be cleared. |
| 4. |
The PTG system is an electronic device and
requires a minimum battery voltage to operate. The Electronic
Control Unit (ECU) monitors the battery voltage at the ECU input
terminal and will not permit operation if the battery voltage is out
of range. |
| 5. |
If the PTG button is pressed during closing
operation, the power tailgate may reverse direction and open
fully. |
| 6. |
Remove the accumulated snow or ice on the
power tailgate before operating.
| - |
To prevent the battery from
being discharged, do not leave the power tailgate at
open position for a long
time. |
| - |
The PTGM will go to a sleep mode
and power operation will be disabled if the tailgate is
left open longer than 6 hours.
Manually close the tailgate to
the latched position to reset the PTGM. Power operation
will be
restored. | |
| - |
Always disconnect the negative
battery cable before attempting any power tailgate
system service. |
| - |
Never attempt to enter or exit
the vehicle with the tailgate in motion. You could be
injured or cause damage to the power tailgate system and
/ or
components. | | |
POWER
OPERATION
The PTG system shall
not open the Tailgate when the vehicle is moving.
The PTG system shall
operate through the full range of Tailgate travel.
The PTG system shall
learn the position of each travel extreme: full open and full
closed.
| 1. |
Vehicle condition
Moving
| A. |
(IGN=OFF and Vehicle Speed > 5
km/h) or (IGN= ON and (Vehicle Speed > 5 km/h or TRANS -
not P)) |
Not moving
| A. |
(IGN=OFF and Vehicle Speed ≤ 5 km/h)
or (IGN= ON and (Vehicle Speed ≤ 5 km/h and TRANS -
P)) | |
| 2. |
TAILGATE TRAVEL ZONES
The Tailgate travel is divided into four
zones starting at the full closed and latched position. Dimensions
are at the bottom edge of the Tailgate and are
approximate.
Zone 1 : Power Latching - from primary to
secondary latch (0 to 10 mm depending on latch travel).
Zone 2 : Between Secondary and Crossover
Point (Secondary to 20 degrees)
Zone 3 : Between Crossover Point and Power
Off (20 degrees to 79 degrees)
Zone 4 : Power Off to Full Open -
approximately 5° (15 counts from full
open) |
