Lexus ES300 (1997 year). Manual — part 661
B
A14
, A15
A
A/C CONTROL ASSEMBLY
1
B–
Y
L
G–
R
P
A/
C
S
A1
7
A/
C
T
H
ER
M
IST
O
R
A/
C
R
O
O
M
T
E
M
P
.
SEN
SO
R
A1
8
A1
6
1
2
1
2
1
2
A/
C
AM
BI
EN
T
T
E
M
P
.
SEN
SO
R
A 1
IM3
10
IM2
10
IM3
11
A
14
B
14
B
10
B
13
A
16
B
3
B
4
B
6
A
1
B
5
B
8
A
11
A
9
A
8
A
F
B
D
IG1
8
I10
IG1
9
W
B–
Y
L
G–
R
P
W
LL
W–
R
L–
W
G–
Y
Y
B–
O
B–
Y
LG
–
B
V
W–
B
V
LG
–
B
B–
Y
B–
O
W–
R
W–
R
W–
R
W–
R
W–
R
Y
B
J2
8
, J
2
9
A
J
U
N
C
T
IO
N
CO
NNE
CT
O
R
W–R
W–B
AMC
AMH
S5
TP
TS
SG
TE
TR
TAM
IGN
AC1
ACT
TW2
GND
TACH
ACT
THWO
A
24
A
5
R–Y
L–R
FROM TELEPHONE TRANSCEIVER
AND SPEAKER RELAY
FROM THEFT
DETERRENT ECU
W–
R
B
A
B
A
A
C
A
C
J
UNCT
IO
N
CO
NNE
CT
O
R
B
J1
8
, J1
9
A
L
L
A
E
A
E
A
E
B
D
B
D
B
D
JUNCTION
CONNECTOR
B
J20
, J21
A
W–
R
W–
R
13
16
5
9
W–R
L
ENGINE CONTROL MODULE
E 7
A/C
TELI
SECU
M
3
4
2
1
AIR MIX CONTROL SERVO MOTOR
A27
WA
R
M
CO
O
L
5
R
2
O
L
AR
SE
N
S
O
238
AUTOMATIC AIR CONDITIONING
239
A4 A/C DUAL PRESSURE SW
4–1 : OPEN ABOVE APPROX. 15.5 KG/CM
2
(30 PSI, 206 KPA) OR 32 KG/CM
2
(455 PSI, 3138 KPA)
A3 A/C MAGNETIC CLUTCH
4–GROUND : APPROX. 3.7
A14 (A), A15 (B) A/C CONTROL ASSEMBLY
B–GROUND : ALWAYS APPROX. 12 VOLTS
IG+–GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
HR–GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSTIION AND DO NOT TURN THE BLOWER MOTOR
BELOW 1 VOLT WITH THE IGNITION SW AT ON POSITION AND TURN THE BLOWER MOTOR
PSW–GROUND : BELOW 1 VOLT WITH THE IGNITION SW ON
AC1–GROUND : BELOW 1 VOLT AT START THE ENGINE, OPERATE THE COMPRESSOR
+OR MORE VOLTS AT START THE ENGINE. DO NOT OPERATE THE COMPRESSOR
BLW–GROUND : BELOW 1.5 VOLTS WITH THE IGNITION SW ON AND TURN THE BLOWER MOTOR
S5–SG : 4–6 VOLTS WITH THE IGNITION SW ON
SG–GROUND : ALWAYS CONTINUITY
AMH–AMC : 1.3–1.9 VOLTS WITH THE IGNITION SW OFF
AIF–GROND : APPROX. 12 VOLTS WITH THE FRESH SW ON
AIR–GROUND ; APPROX. 12 VOLTS WITH THE RECIRC SW ON
FACE–GROUND : APPROX. 12 VOLTS WITH THE FACE SW ON
DEF–GROUND : APPROX. 12 VOLTS WITH THE DEF SW ON
GND–GROUND : ALWAYS CONTINUITY
: PARTS LOCATION
CODE
SEE PAGE
CODE
SEE PAGE
CODE
SEE PAGE
A1
A26
J15
A3
A27
J18
A
A4
A28
J19
B
A13
B2
J20
A
A14
A
B3
J21
B
A15
B
D2
J28
A
A16
E7
J29
B
A17
F10
A18
J3
: RELAY BLOCKS
CODE
SEE PAGE
RELAY BLOCKS (RELAY BLOCK LOCATION)
1
ENGINE ROOM R/B (ENGINE COMPARTMENT LEFT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODE
SEE PAGE
JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1R
1V
COWL WIRE AND INSTRUMENT PANEL J/B (LOWER FINISH PANEL)
1W
(
)
2C
ENGINE ROOM MAIN WIRE AND ENGINE ROOM J/B (ENGINE COMPARTMENT LEFT)
2J
COWL WIRE AND ENGINE ROOM J/B (ENGINE COMPARTMENT LEFT)
2K
COWL WIRE AND ENGINE ROOM J/B (ENGINE COMPARTMENT LEFT)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODE
SEE PAGE
JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
EB1
COWL WIRE AND ENGINE ROOM MAIN WIRE (UNDER THE ENGINE ROOM J/B)
EB2
COWL WIRE AND ENGINE ROOM MAIN WIRE (UNDER THE ENGINE ROOM J/B)
IG1
INSTRUMENT PANEL WIRE AND COWL WIRE (RIGHT SIDE OF INSTRUMENT PANEL J/B)
IH1
COWL WIRE AND A/C SUB WIRE (BEHIND RADIO AND PLAYER)
IM2
38
ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)
IM3
38
ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODE
SEE PAGE
GROUND POINTS LOCATION
EC
LEFT RADIATOR SIDE SUPPORT
II
INSTRUMENT PANEL BRACE LH
SERVICE HINTS
240
: SPLICE POINTS
CODE
SEE PAGE
WIRE HARNESS WITH SPLICE POINTS
CODE
SEE PAGE
WIRE HARNESS WITH SPLICE POINTS
E3
ENGINE ROOM MAIN WIRE
I4
38
A/C SUB WIRE
I3
38
COWL WIRE
I10
38
COWL WIRE
1
2
1
2
X
4
1
4
1
3 4 5 6 7 8 9 10
11
13
14 15 16 17 18 19 20 X X 23 24 25 26
X 2 3 4 5 6 7 8
9 10 X X 13 14 X 16
1
2
1
2
1
2
1 X 3 X 5 6 7
1
2 3 4 5
1
2
X 4 5 6 7 8
1
2
2
16
X X
X 5
9
13
X
1
B B B B
(HINT : SEE PAGE 7)
A
A
A
A
A
(HINT : SEE PAGE 7)
C C
(HINT : SEE PAGE 7)
A A
(HINT : SEE PAGE 7)
B
B
E E
E
(HINT : SEE PAGE 7)
B B
D D D
(HINT : SEE PAGE 7)
X X
F
F
(HINT : SEE PAGE 7)
D D X
X
(HINT : SEE PAGE 7)
A 1
DARK GRAY
A 3
GRAY
A 4
BLACK
A13
A16 BLACK
A17 BLACK
A18
A26 BLACK
A27
A28
B 2
B 3
D 2
ORANGE
E 7
F10
J 3
J15
A
BLACK
J18
B
BLACK
J19
A
BLACK
J20
B
BLACK
J21
A
J28
B
J29
A
A14
B
A15
3
1
2
3
4
BLACK
1
2
BLACK
A
241
MEMO
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