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65-6
AUTOMATIC A/C CONTROLS
(Refer to Section 201 for photographs.)
Component
Photo No.
A/C Compressor Clutch
Lower left front corner of engine
44
. . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A/C Compressor Relay
In fuse/relay box
36
. . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A/C Pressure Switch
Behind left side of radiator grille
2
. . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A/C Thermostat Relay
In fuse/relay box
36
. . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ambient Sensor
Behind left side of radiator grille
2
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Heater-A/C
Control Unit
Center of I/P
64
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Motor
Right side of I/P, behind glove box
116
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dash Fuse Box
Behind left dash side trim panel
55
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duct Sensor
Right side of I/P, behind glove box
72
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Coolant Temperature
(ECT) Sensor
Top front of engine
10
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse/Relay Box
Right side of engine compartment, on inner fender panel
41
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . .
Heater and A/C Relay
In fuse/relay box
56
. . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In-car Temperature Sensor
Center of I/P
64
. . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Intake Actuator
Right side of I/P, behind glove box
133
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Max Hi Relay
Right side of I/P, behind glove box
72
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mix Actuator
Behind anti-theft and keyless entry control unit
136
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mode Actuator
Below I/P, above left dash side trim panel
123
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Transistor
Right side of I/P, behind glove box
72
. . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connector
E-3 (1-BLK)
Lower left front corner of engine
44
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-5 (16-GRN)
Left side of engine compartment
33
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-9 (20-BLK)
Below I/P, above left dash side trim panel, on bracket
70
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
H-14 (2-RED)
. . . . . . . . . . . . . . . .
H-16 (22-WHT)
Behind right dash side trim panel
120
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-20 (4-WHT)
Behind right dash side trim panel
120
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-24 (18-YEL)
Below I/P, above left dash side trim panel, on bracket
70
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
H-26 (20-WHT)
Below I/P, above left dash side trim panel, on bracket
71
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
H-41 (16-BLK)
Right front of engine compartment
31
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-48 (16-BLK)
Behind right dash side trim panel
120
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-57 (16-BLK)
Right side of engine compartment
59
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-67 (8-BLK)
Below I/P, above left dash side trim panel
137
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ground
B-2
Above right dash side trim panel
116
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-19
Behind top of left dash side trim panel
71
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Location Index
65-7
AUTOMATIC A/C CONTROLS
The automatic A/C system consists of the following
components:
Blower Controls:
D
Blower Motor
D
Max Hi Relay
D
Power Transistor
Compressor Controls:
D
A/C Compressor Clutch
D
A/C Compressor Relay
D
A/C Pressure Switch
D
A/C Thermostat Relay
Air Delivery Controls:
D
Intake Actuator
D
Mix Actuator
D
Mode Actuator
Sensor Inputs:
D
Evaporator Sensor
D
In-Car Temperature sensor
D
Outside Temperature Sensor
D
Sunlight Sensor
D
Thermo Sensor
The Automatic Heater-A/C Control Unit is powered at
all times through fuse C-16 and with the engine running
through fuse C-20, and is grounded at all times at B-2.
Refer to Section 1A of the Workshop Manual for further
diagnosis.
Circuit Operation
ALARM AND RELAY CONTROLS
Alarm and Relay Control Unit
Dash Fuse Box
Driver’s Seat Belt Switch
Fuse/Relay Box
Starter Switch
Taillight Relay
Component Location Index
70
ALARM AND RELAY CONTROLS
STARTER
SWITCH
C-16
CLOCK [B]
DOME LIGHT
10A
RED/WHT
DASH
FUSE
BOX
HOT AT ALL TIMES
B-7
Key Remind
Switch
Closed with
key in ignition.
B-11
6
PNK/BLU
2
See Dash
Fuse Box,
page 11-5.
RED/WHT
Dome
light
control
Battery
B-11
8
B-6
Rear Defogger
See Ground
Distribution,
page 14-3.
B-2
BLK
BLK
Ground
ORN/
BLU
3
Courtesy Lights
GRY/RED
BLU
B-24
1
BLU
BLU
DRIVER’S SEAT
BELT SWITCH
Open with seat
belt buckled.
Seat Belt
Warning System,
Supplemental
Restraint
System (SRS)
See Ground
Distribution,
page 14-4.
B-26
BLK
BLK
B-24
2
Driver’s
seat belt
unbuckled
input
RED/WHT
Key in
ignition
input
Beeper
PNK/BLU
PNK/BLU
BLK
SB21
13
ORN/
GRN
8
5
9
GRY/
GRN
5
Dome
Light
Defogger
ON/OFF
request
Defogger
control
9
6
GRY/BLK
4
GRY/
WHT
Rear
doors
open
intput
Left
front
door
open
input
SB32
Front
door
courtesy
light
control
B-7
B-6
SB16
PNK/BLU
Anti-theft
System
PNK/BLU
Circuit Schematic
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