Mazda 2007 CX-9, Service Highlights

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DOORS AND LIFTGATE
09-11–10
POWER LIFTGATE (PLG) TOUCH SENSOR CONSTRUCTION/OPERATION
id091100104400
•
The PLG touch sensors are installed on the left
and right sides of the liftgate.
•
If pressure is applied to the sensor area, the
resistance in the sensor area changes. This
change in resistance is detected by the PLG
control module and it is determined that an object
is obstructing.
End Of Sie
POWER LIFTGATE (PLG) CONTROL MODULE FUNCTION
id091100103700
•
A fail-safe function is adopted which reverses the operation or stops it if an abnormal signal is detected from
any part.
•
A self-diagnostic function has been adopted which can verify the failed parts and malfunction.
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POWER LIFTGATE (PLG) CONTROL MODULE CONSTRUCTION/OPERATION
id091100104500
Fail-safe Function
•
The PLG control module monitors each input/output part, and if a malfunction is detected, performs the
following actions.
End Of Sie
ON-BOAD DIAGNOSTIC OUTLINE
id091100104800
•
Self-diagnosis functions include the failure detection that comprehensively detects the failure of PLG system-
related parts, and memory function that memorizes the detected failure, and the data monitor function that
retrieves a particular input and output signal.
•
You can retrieve and delete service codes and monitor data by using Mazda Modular Diagnostic System (M-
MDS).
End Of Sie
PLG TOUCH
SENSOR (LH)
PLG TOUCH
SENSOR (RH)
ac9uun00000166
Item Detection Condition Action after detection Auto operation return
Rotation
sensor
malfunctio
n
•
Pulse signal A fixed at high or low
is detected
•
Pulse signal B fixed at high or low
is detected
•
Abnormal pulse count detected
•
Reverse direction pulse detected
for operation direction
Auto operation stop (Clutch off) Liftgate closed
Damper
damage
After auto open operation or
emergency stop (Clutch off), a
sudden pulse in the close direction is
detected
Auto close operation Liftgate closed
PLG
motor
over-
current
Over-current in PLG motor Auto operation stop (Clutch off) Liftgate closed or open
Continuou
s reverse
•
Switch is operated continuously
•
Continuous obstruction detected
Auto operation stop (Clutch off) Liftgate closed or open
PLG
motor
failure
PLG motor GND fault detection Auto operation stop (Clutch off) Liftgate fully closed
ECU
failure
PLG motor FET ON fault detection Auto operation stop (Clutch off) Liftgate fully closed
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