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63-9
AIR CONDITIONING: MANUAL
(Refer to Section 201 for photographs.)
Ground
G102
Left side of engine compartment
4
. . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G103
Right rear of engine compartment
15
. . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G107 (4.2L)
Lower left side of engine
37
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G107 (5.3L)
Lower left side of engine
38
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G201
Near right front of lower console
80
. . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Location Index
65
AIR CONDITIONING: AUTOMATIC
A/C Compressor Clutch Assemby (4.2L)
A/C Compressor Clutch Assemby (5.3L)
A/C Low Pressure Switch
A/C Refrigerant Pressure Sensor (4.2L)
A/C Refrigerant Pressure Sensor (5.3L)
A/C Relay 44
Air Temperature Actuator-Auxiliary
Air Temperature Actuator-Left
Air Temperature Actuator-Right
Air Temperature Sensor Assembly-Inside
Air Temperature Sensor-Lower Left
Air Temperature Sensor-Lower Right
Air Temperature Sensor-Upper Left
Air Temperature Sensor-Upper Right
Ambient Air Temperature Sensor
Ambient Light/Sunload Sensor Assembly
Blower Motor Control Module
Blower Motor Control Processor-Auxiliary
Blower Motor Switch-Front Auxiliary
Blower Motor-Auxiliary
Body Control Module (BCM)
Console Mode Actuator
Coolant Bypass Valve
Defrost Actuator
Fuse Block-Rear
Fuse Block-Underhood
HVAC Control Module
HVAC Control Module-Auxiliary
Inflatable Restraint Steering Wheel Module Coil
Mode Actuator
Powertrain Control Module (PCM) (4.2L)
Powertrain Control Module (PCM) (5.3L)
Recirculation Actuator
SP201
Steering Wheel Control Assembly
Component Index
65-0
AIR CONDITIONING: AUTOMATIC (Blower Controls)
PPL/WHT
0.35
GRY/BLK
0.35
WHT
0.35
HVAC 1
Fuse 39
10A
HOT IN RUN
FUSE
BLOCK-
UNDER-
HOOD
Connector
A8
Data Lines
BRN
0.35
B5
BLOWER
Fuse 35
40A
HOT AT ALL TIMES
C6
B
RED
3
FUSE
BLOCK-
REAR
Connector
HVAC B
Fuse 36
10A
HOT AT ALL TIMES
C1
C1
ORN
0.35
B7
HVAC
CONTROL
MODULE
Connector
B11
Ignition 3
voltage
Battery
positive
voltage
Class 2
serial data
C1
Control
TEMP
left
Control
TEMP
right
Blower motor
speed control
Coolant
bypass
control
Processor/Drivers
C2
M
A9
C1
A10
A8
B
BLK
0.5
G103
BLK
1
See Ground
Distribution,
page 14.
Not used
COOLANT
BYPASS
VALVE
Connector
A
BLK/WHT
0.8
G102
See Ground
Distribution,
page 14-1.
BLK/WHT
0.35
GRY/BLK
0.35
F
C105
Connector
SP201
K
G201
See Ground
Distribution,
page 14-5.
M
BLOWER
MOTOR
CONTROL
MODULE
Connector
Control
B
A
C
BLK
3
Blower
Motor
+
-
See Power
Distribution,
page 10-15.
See Power
Distribution,
page 10-15.
BRN
0.35
Circuit Schematic
65-1
AIR CONDITIONING: AUTOMATIC (Compressor Controls)
LT GRN
0.35
WHT
0.35
DK GRN
0.35
C1*
HOT IN RUN AND START
IGN E
Fuse 22
10A
FUSE
BLOCK-
UNDERHOOD
Connector
C2
F12
42
Class 2
serial data
A/C
RELAY 44
C1
E12
*59
POWERTRAIN
CONTROL
MODULE
(PCM)
(4.2L) (5.3L)
Connector 4.2L
Connector 5.3L
HOT AT ALL TIMES
A/C
Fuse 30
10A
HVAC
CONTROL
MODULE
Connector
C1
B12
B11
Class 2
serial data
A/C
compressor
status
signal
**58
SPLICE
PACK SP205
L
B
Data
Lines
DK GRN/WHT
0.35
*42
**43
BLK
0.35
G107
(4.2L)
(5.3L)
B
A
C
A/C
COMPRESSOR
CLUTCH
ASSEMBLY
(4.2L)
(5.2L)
Connector
C100
Connector
G
DK GRN
0.35
C2**
C1
*4.2L
**5.3L
C107
Connector
D2
LT GRN
0.35
4.2L
5.3L
A/C
compressor
clutch
A/C
compressor
clutch diode
Temperature
switch (opens
above 275
°
F
(135
°
C))
D3
C1
F3
C1
See Ground
Distribution,
page 14-2.
FUSE
BLOCK-
UNDER-
HOOD
Connector
BLK
0.8
A/C
compressor
clutch relay
control
See Power
Distribution,
page 10-13.
Circuit Schematic
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