Mazda 2007 CX-9, Service Highlights

Page: 386 / 614

DOORS AND LIFTGATE
09-11–6
•
ON/OFF shows the condition of contact point of SW.
•
HALF LATCH SWITCH: Contact point at ON when half lock/full lock.
•
FULL LATCH SWITCH: Contact point at ON when full lock.
•
RETURN SWITCH: Contact point at ON when closure motor is in operation.
Manual open/close Operation
Note
•
Operation conditions vary depending on the vehicle conditions (Such as ignition switch, shift lever
position). Refer to the operation conditions.
Manual open
1. By operating the liftgate outer handle while the liftgate is closed, the liftgate outer handle switch turns on and a
signal is sent to the PLG control module.
2. When the PLG control module receives the signal, the operation conditions are confirmed, and if the conditions
are met, a motor operation signal is sent to the closure motor.
3. The closure motor rotates in the direction to open the liftgate and releases the latch.
4. After the latch is released, the liftgate can be opened manually.
Manual close
1. The liftgate can be closed manually in the same way as the previous liftgate.
2. If the door is ajar, the half-latch switch turns off, and a signal is sent to the PLG control module.
3. The PLG control module sends a motor operation signal to the closure motor.
4. 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.
Auto Open Operation
Auto open operation using the PLG front switch or transmitter operation
1. While the liftgate is closed, a liftgate-open request signal is sent from the PLG front 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 open operation.
3. The PLG control module sends a motor operation signal to the closure motor to release the latch.
4. When the latch is released, the clutch in the PLG drive unit is engaged, and the PLG motor operates in the
open direction.
5. The PLG control module counts the pulse signals from the rotation sensor in the PLG drive unit to detect the
liftgate speed. By detecting the speed, the PLG motor output is adjusted so that the liftgate opens smoothly at
a constant speed.
6. The PLG control module releases the clutch in the PLG drive unit when the counted pulse signals approach the
fully open position.
HALF LATCH SWITCH FULL LATCH SWITCH RETURN SWITCH
Neutral and fully closed
position
ON ON OFF
Neutral and fully opened
position
OFF — OFF
LIFTGATE OUTER
HANDLE
CLOSURE MOTOR
OUTPUT
PLG CONTROL
MODULE
INPUT
ON SIGNAL
OPERATION
SIGNAL
SPEED SIGNAL
IGNITION SWITCH
POSITION
SHIFT LEVER
POSITION
OPERATING
CONDITION
DOOR LOCK
CONDITION
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