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65-2
AUTOMATIC A/C CONTROLS (COMPRESSOR CONTROLS)
A/C
COMPRESSOR
2
3
4
1
X-5
X-5
A/C
THERMOSTAT
RELAY
2
1
4
3
X-7
X-7
A/C
COMPRESSOR
RELAY
FUSE/
RELAY
BOX
GRN/ORN
H-16
22
H-41
2
GRN/WHT
GRN/WHT
BRN
BRN
BRN
1
C-25
2
C-25
A/C
PRES-
SURE
SWITCH
H-9
20
LT GRN
BRN
BRN
BRN
GRN/BLK
BRN
L
O
HI
AUTOMATIC
HEATER-A/C
CONTROL
UNIT
Solid State:
Do not check
resistance.
A/C
compressor
relay control
GRN/BLK
18
I-33
A/C thermo
relay control
PNK/GRN
14
I-32
BRN
BRN
E-21
45
ENGINE or
POWERTRAIN
CONTROL
MODULE
(ECM or PCM)
Solid State:
Do not check
resistance.
A/C
ON
input
E-3
1
H-57
11
GRN/ORN
H-16
6
H-16
20
GRN/BLK
GRN/BLK
B
D
From B on
page 65-1.
To D on
page 65-4.
H-57
14
CLUTCH
J-3
1
J-3
2
BRN
BRN
BRN/YEL
BRN/YEL
VIO/WHT
PNK/GRN
Engine
Controls
Circuit Schematic
65-3
AUTOMATIC A/C CONTROLS (AIR DELIVERY CONTROLS)
E
From E on
page 65-5.
INTAKE
ACTUATOR
MIX
ACTUATOR
I-32
I-32
AUTOMATIC
HEATER-A/C
CONTROL
UNIT
Solid State:
Do not check
resistance.
FOOT/
RECIRC
control
GRY/
RED
9
I-33
H-26
3
GRY/
RED
B-69
B-69
6
VENT
D/F
control
GRY/
GRN
8
4
GRY/
GRN
9
7
BLK/BLU
DEF
control
GRY/
BLU
7
13
GRY/
BLU
2
B/L
control
GRY
11
GRY
5
DEFROST
to VENT
control
YEL/BRN
4
16
YEL/BRN
5
1
YEL/GRN
Cold/
Hot
input
VIO
5
I-33
H-67
3
VIO
I-45
I-45
7
5V
ref.
VIO/GRN
15
6
VIO/GRN
3
2
BLK/BLU
HOT to
COLD
control
VIO/WHT
6
4
VIO/WHT
8
6
VIO/RED
FRESH
position
input
14
I-33
BLU/
YEL
I-49
I-49
2
MIX
position
input
13
BLU/
RED
5
1
BLK/
BLU
REC
position
input
12
BLU/WHT
6
BRN
4
3
BLU/
ORN
C
From C on
page 65-1.
M
M
GRY/
RED
8
M
GRY/
GRN
4
10
MODE
ACTUATOR
GRY/
RED
GRY/
GRN
I-32
I-32
5
I-33
6
11
AUTOMATIC
HEATER-A/C
CONTROL
UNIT
Solid State:
Do not check
resistance.
H-26
15
10
H-67
8
2
BLK/BLU
YEL/GRN
BLK/BLU
VIO/RED
11
BLK/BLU
BLK/BLU
BLK/BLU
B/L
DEF
D/F
RECIRC
VENT
FOOT
BLK/
BLU
REC/
FRESH
control
Sensor ground
COLD
to HOT
control
VENT to
DEFROST
control
3
Ground
REC
FRESH
H
C
MIX
Circuit Schematic
65-4
AUTOMATIC A/C CONTROLS (SENSORS)
B-2
See Ground
Distribution,
page 14-3.
BLK
BLK
BLK
I-34
4
I-34
3
I-33
4
E-19
H-5
5
YEL/BLK
YEL/BLK
YEL/BLK
Meter
Assembly
M
2
1
I-32
7
THERMO
SENSOR
H-9
12
YEL/BLK
YEL/BLK
Engine coolant
temperature
input
Ignition
input
AUTOMATIC
HEATER-A/C
CONTROL
UNIT
Solid State:
Do not check
resistance.
IN-CAR
TEMPERATURE
SENSOR
SUNLIGHT
SENSOR
BRN/BLK
I-33
3
1
LT GRN/WHT
BRN
BRN
BRN
D
From D on
page 65-2.
Inside air
temperature
input
Sunlight
sensor
input
I-35
1
I-35
2
BLK/BLU
BLK/BLU
BLK
ORN
Circuit Schematic
65-5
AUTOMATIC A/C CONTROLS (SENSORS)
EVAPORATOR
SENSOR
LT GRN/WHT
20
Evaporator
temperature
sensor input
BLK/BLU
C-86
2
C-86
1
OUTSIDE
TEMPERATURE
SENSOR
LT GRN/BLK
2
Outside air
temperature
input
BLK/BLU
AUTOMATIC
HEATER-A/C
CONTROL
UNIT
Solid State:
Do not check
resistance.
E-33
LT GRN/BLK
BLK
BLK
I-40
2
I-40
1
H-24
12
BLK/BLU
E
To E on
page 65-3.
Circuit Schematic
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