Mazda 2007 CX-9, Service Highlights

Page: 387 / 614

DOORS AND LIFTGATE
09-11–7
09-11
Auto close operation using the PLG front switch, PLG rear switch or transmitter operation
1. While the liftgate is open, a liftgate-close request signal is sent from the PLG front switch, PLG rear switch or
the transmitter to the PLG control module.
2. The PLG control module verifies the operation conditions after receiving the signal, and if the conditions are
met, a buzzer sound is activated and a signal is sent to the BCM simultaneously to flash the hazard warning
lights 2 times and to commence the close operation.
3. The PLG control module counts the pulse signals from the rotation sensor in the PLG drive unit to detect the
liftgate speed and opening angle. By detecting the speed, the PLG motor output is adjusted so that the liftgate
closes smoothly at a constant speed.
4. When the liftgate approaches the fully closed position, the half-latch switch turns off, and closure motor
operates in the close direction. After this, the PLG motor stops and the clutch is released.
5. The closure motor rotates in the direction to close the liftgate, and the liftgate closes. The motor operates until
a full-latch switch off signal is input.
Emergency peration/stop
Reverse operation
•
If any of the following conditions are met during auto open/close operation, the buzzer sounds and the liftgate
reverses its direction of operation.
—
The liftgate outer handle switch, PLG front switch, PLG rear switch, or the transmitter (PLG button) are
operated
—
A touch sensor is activated and it is determined that an object is obstructing
—
There is no change in the rotation sensor pulse signal other than the fully open/closed positions, and it is
determined that an object is obstructing.
Emergency stop
•
If any of the following conditions are met during auto open operation, the buzzer sounds and the liftgate stops
immediately.
—
The power supply voltage is less than 8 V
—
A malfunction is detected in the rotation sensor, Over-current in PLG motor, PLG motor failure and ECU
failure.
•
If any of the following conditions are met during auto close operation the liftgate stops immediately.
—
The power supply voltage is less than 8 V
—
A malfunction is detected in the rotation sensor, touch sensor, half-latch switch, or the full-latch switch,
Over-current in PLG motor, PLG motor failure and ECU failure.
•
Insertion, turning over repetition.
CLUTCH
PLG
MOTOR
PLG
SLIDER
PLG
ARM
UP
ROTATION
SENSOR
PLG DRIVE UNIT
PLG FRONT
SWITCH
PLG REAR
SWITCH
TRANSMITTER
KEYLESS
RECEIVER
KEYLESS
CONTROL
MODULE
PLG CONTROL
MODULE
LIFTGATE OPEN
REQUEST SIGNAL
PLG OPEN
OPERATION SIGNAL
BCM
HAZARD LIGHT
TWICE
CLOSURE MOTOR
CLUTCH RELEASE
LIFTGATE OPEN
ac9uun00000436
3423-1U-06H(09-11).fm 7 ページ ２００６年１１月２１日 火曜日 午後５時３６分