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53-1
LIFTGATE MODULE SYSTEM
120Ć3
The liftglass can be opened by any of the following
components: Liftgate window release switch, Door lock
cylinder switch, or Keyless entry transmitter.
When the liftgate window release switch is operated
ground is applied to the body control module (BCM) and
a liftglass release output is sent to the liftglass relay. An
open output can also be commanded by the BCM when
an open input is received from the remote control door
lock receiver. When the BCM grounds the relay with a
commanded open the liftglass relay coil energizes and
the switch side of the relay closes. Battery voltage is
then applied directly to the liftgate window release
actuator. This will release the liftglass. The liftgate
window release actuator can also be energized when
the liftgate lock cylinder switch is operated.
Circuit Operation
53-2
LIFTGATE MODULE SYSTEM
(Refer to Section 201 for photographs.)
Component
Photo No.
Fuse Block-Rear
Under the left rear seat
52
. . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel Cluster
(IPC)
On the left side of the IP, above the steering column
59
. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
Liftgate Ajar Switch
Inside the lower liftgate
114
. . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liftgate Module (LGM)
Inside the liftgate
113
. . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liftglass Ajar Switch
Inside the top of liftgate
114
. . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connector
C900 (6-BLK)
Top of the liftgate
107
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ground
G401
On lower left D-pillar
109
. . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Location Index
REAR DEFOGGER
Fuse Block-Rear
HVAC Control Module
Liftgate Module (LGM)
Component Index
61-0
REAR DEFOGGER
WHT
0.35
LT BLU
0.35
PPL
2
LGM 2
Fuse 3
30A
HOT AT ALL TIMES
FUSE
BLOCK–
REAR
Connector
C2
A1
Battery
positive
voltage
A
REAR
WINDOW
DEFOGGER
GRID
Connector
C
C900
Connector
ORN
2
A
LIFTGATE
MODULE
(LGM)
Connector
C1
A
C2
ORN
2
Rear defog element
supply voltage
BLK
2
G401
BLK
5
BLK
2
See Ground
Distribution,
page 14-8.
BLK
2
D
C900
Connector
B
C1
Class 2
serial
data
2
C2
HVAC
CONTROL
MODULE
Connector
R Def
Logic
Class 2 serial data
Data Lines
B11
C1
BLK
BLK
C1
Circuit Schematic
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