1994 TOYOTA CAMRY Pag 64

250
AIR CONDITIONING (PUSH CONTROL SW TYPE)
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A 228 (1MZ±FE), 30 (5S±FE)A1732H 833
A 328 (1MZ±FE), 30 (5S±FE)B 432I 230 (5S±FE)
A1032B 532J 133
A1132B 632
A1632C1432
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
425R/B NO. 4 (RIGHT KICK PANEL)
526R/B NO. 5 (ENGINE COMPARTMENT LEFT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B20COWL WIRE AND J/B NO 1 (INSTRUMENT PANEL LEFT)1D20COWL WIRE AND J/B NO. 1 (INSTRUMENT PANEL LEFT)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
EC138 (1MZ±FE)ENGINE WIRE AND ENGINE ROOM MAIN WIREEC140 (5S±FE)ENGINE WIRE AND ENGINE ROOM MAIN WIRE
IK142COWL WIRE AND A/C SUB WIRE
IL142COWL WIRE AND SERVO MOTOR SUB WIRE
IP144ENGINE WIRE AND COWL WIREIP344ENGINE WIRE AND COWL WIRE
IR144ENGINE ROOM MAIN WIRE AND COWL WIRE
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IG42INSTRUMENT PANEL BRACE LH
II42RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E638 (1MZ±FE)ENGINE ROOM MAIN WIREI12E 640 (5S±FE)ENGINE ROOM MAIN WIREI1344COWL WIREI 544COWL WIREI1444COWL WIRE
I 744COWL WIREI19

252
AIR CONDITIONING (LEVER CONTROL SW TYPE)
4 4
44 4
M
M
1
5 4 3 2 7 2 613
3584
145678 6 CC
I7
I12 I13
I14
I13
IG II251
2
43
IL1 7IL11
IL1 2IL1 3
IL1 4IL1 5 1 I5
IL1 6
1 HI M2 M1B
A 4
CONTROL
CIRCUIT
I14R±L R±L R±L
R±L
W±B W±B
W±B
W±BB R±L
B
B±WR±L
L
R±L
W±B W±B
R±Y
B±Y
L±B
R
G±W B±WL±W W±B
W±B W±B W±BW±B
L±O
L±B
L±R
L
L±WYL GBB W±B
L±W
40A
HEA TER
4
R±L
HEATER
RELAYJUNCTION
CONNECTOR
AIR VENT MODE CONTROL SERVO MOTOR
BLOWER RESISTOR
BLOWER
MOTOR
B±W
L±O
L±B
BLOWER SWAIR VENT MODE
CONTROL SW OFF FROM POWER SOURCE SYSTEM(
SEE PAGE 64)
DEF
F/D
FOOT
B/L
FACE
DEF
F/D
FOOT
B/L
FACE
FACE B/L FOOT F/D DE F LO B4B5
B6H8 A17 J1
IK1 1IK13IK12IK14 I21
B
1B 610A
GAUGE

254
AIR CONDITIONING (LEVER CONTROL SW TYPE)
CURRENT ALWAYS FLOWS FROM THE HEATER FUSE TO TERMINAL 5 OF THE HEATER RELAY. WHEN THE IGNITION SW IS TURNED
ON, CURRENT FLOWS FROM GAUGE FUSE TO TERMINAL 2 OF THE AIR VENT MODE CONTROL SERVO MOTOR AND A/C MAGNETIC
CLUTCH RELAY (COIL SIDE) " TERMINAL 12 OF THE A/C AMPLIFIER, TERMINAL 1 OF THE A/C DUAL PRESSURE SW " TERMINAL 4
" TERMINAL 2 OF THE A/C AMPLIFIER, HEATER RELAY (COIL SIDE) " TERMINAL 3 OF THE BLOWER SW.
1. OPERATION OF AIR VENT MODE CONTROL SERVO MOTOR
WHEN THE DAMPER IS IN FACE POSITION AND THE BI±LEVEL OF THE AIR VENT MODE CONTROL SW IS THEN TURNED ON,
CURRENT FLOWS FROM TERMINAL 7 OF THE AIR VENT MODE CONTROL SW " TERMINAL 5 OF THE AIR VENT MODE CONTROL
SERVO MOTOR SO THAT A SIGNAL THAT THE GROUND CIRCUIT IS ACTIVATED IS INPUT TO TERMINAL ªBº OF THE CONTROL
CIRCUIT INSIDE THE AIR VENT MODE CONTROL SERVO MOTOR. SIMULTANEOUSLY, A SIGNAL THAT THE GROUND CIRCUIT IS NOT
ACTIVATED IS INPUT TO TERMINAL ªAº OF THE CONTROL CIRCUIT INSIDE THE SERVO MOTOR. THESE TWO SIGNALS ACTIVATE
THE CONTROL CIRCUIT SO THAT CURRENT FROM THE GAUGE FUSE TO THE SERVO MOTOR, CAUSING THE SERVO MOTOR TO
OPERATE AND THE DAMPER TO MOVE TO BI±LEVEL POSITION. WHEN THE DAMPER REACHES BI±LEVEL POSITION. A GROUND
CUT SIGNAL IS INPUT TO TERMINAL ªBº OF THE CONTROL CIRCUIT, THE CONTROL CIRCUIT OPERATES, THE SERVO MOTOR
STOPS ROTATING AND THE DAMPER STOPS AT BI±LEVEL.
WHEN ANOTHER MODE POSITION IS SWITCHED TO, INPUT OF SIGNALS TO TERMINAL ªAº AND TERMINAL ªBº OF THE CONTROL
CIRCUIT THAT GROUND IS NOT MADE (AS EXPLAINED ABOVE) ACTIVATES THE CONTROL CIRCUIT AND MOVES THE SERVO
MOTOR TO THE DESIRED POSITION.
2. AIR CONDITIONING OPERATION
WHEN THE BLOWER SW IS ON, CURRENT FLOWS THE GAUGE FUSE " HEATER RELAY (COIL SIDE) " TERMINAL 3 OF THE
BLOWER SW " TERMINAL 1 " GROUND, ACTIVATING THE HEATER RELAY. THIS CAUSES CURRENT TO FLOW FROM THE HEATER
FUSE TO THE HEATER RELAY (POINT SIDE) " A/C FUSE " TERMINAL 2 OF THE A/C SW. IF THE A/C SW IS THEN TURNED ON AT
THIS TIME. A SIGNAL IS INPUT TO THE A/C AMPLIFIER. THIS ACTIVATES THE A/C AMPLIFER AND A/C MAGNETIC CLUTCH RELAY SO
THAT CURRENT FLOWS FROM THE GAUGE FUSE TO THE A/C MAGNETIC CLUTCH RELAY (POINT SIDE) " A/C MAGNETIC CLUTCH.
CAUSING THE COMPRESSOR TO OPERATE. THE VSV (FOR A/C IDLE±UP) IS TURNED ON SIMULTANEOUSLY TO PREVENT A
DECREASE IN ENGINE SPEED DUE TO A/C OPERATION.
HEATER RELAY
(4)5± (4)4 : CLOSED WITH THE IGNITION SW ON AND BLOWER SW ON
A/C MAGNETIC CLUTCH RELAY
(5)5± (5)3 : CLOSED WITH THE IGNITION SW ON AND BLOWER SW ON AND A/C SW ON
A 2 A/C DUAL PRESSURE SW
1±4 : OPEN WITH PRESSURE 2.1 KG/CM (30 PSI, 206 KPA) OR ABOVE 27 KG/CM (384 PSI, 2646 KPA)
B 5 BLOWER RESISTOR
6±1 : APPROX. 3.17 W
6±3 : APPROX. 1.38 W
2±6 : APPROX. 0.38 W
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A 228 (1MZ±FE), 30 (5S±FE)A1732H 833
A 328 (1MZ±FE), 30 (5S±FE)B 432I 230 (5S±FE)
A1032B 532J 133
A1132B 632
A1232C1432
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
425R/B NO. 4 (RIGHT KICK PANEL)
526R/B NO. 5 (ENGINE COMPARTMENT LEFT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B20COWL WIRE AND J/B NO 1 (INSTRUMENT PANEL LEFT)1D20COWL WIRE AND J/B NO. 1 (INSTRUMENT PANEL LEFT)
SYSTEM OUTLINE
SERVICE HINTS

255
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
EC138 (1MZ±FE)ENGINE WIRE AND ENGINE ROOM MAIN WIREEC140 (5S±FE)ENGINE WIRE AND ENGINE ROOM MAIN WIRE
IK142COWL WIRE AND A/C SUB WIRE
IL142COWL WIRE AND SERVO MOTOR SUB WIRE
IP144ENGINE WIRE AND COWL WIREIP344ENGINE WIRE AND COWL WIRE
IR144ENGINE ROOM MAIN WIRE AND COWL WIRE
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IG42INSTRUMENT PANEL BRACE LH
II42RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E638 (1MZ±FE)ENGINE ROOM MAIN WIREI13E 640 (5S±FE)ENGINE ROOM MAIN WIREI1444COWL WIRE
I 544COWL WIREI19
44COWL WIRE
I 744COWL WIRE

260
GROUND POINT* 2 : TMM MADE *
1:TMCMADE
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
J 133J 536 (W/G)
J 233J 733
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
125R/B NO. 1 (LEFT KICK PANEL)
425R/B NO. 4 (RIGHT KICK PANEL)
526R/B NO. 5 (ENGINE COMPARTMENT LEFT)
626R/B NO. 6 (BEHIND GLOVE BOX)
727R/B NO. 7 (NEAR THE BATTERY)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1C
1F20COWL WIRE AND J/B NO. 1 (INSTRUMENT PANEL LEFT)
1G
20COWL WIRE AND J/B NO. 1 (INSTRUMENT PANEL LEFT)
1I20 (*1)ROOF WIRE AND J/B NO. 1 (INSTRUMENT PANEL) TMC MADE1I20 (*2)COWL WIRE AND J/B NO. 1 (INSTRUMENT PANEL) TMM MADE
1M20COWL WIRE AND J/B NO. 1 (INSTRUMENT PANEL LEFT)
2B22ENGINE ROOM MAIN WIRE AND J/B NO 2 (ENGINE COMPARTMENT LEFT)2E22ENGINE ROOM MAIN WIRE AND J/B NO. 2 (ENGINE COMPARTMENT LEFT)
2F22COWL WIRE AND J/B NO. 2 (ENGINE COMPARTMENT LEFT)
3A
3B24COWL WIRE AND J/B NO 3 (BEHIND COMBINATION METER)3C24COWL WIRE AND J/B NO. 3 (BEHIND COMBINATION METER)
3D
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
EA138 (1MZ±FE)ENGINE ROOM MAIN WIRE AND ENGINE ROOM NO. 3 WIRE
EB138 (1MZ±FE)ENGINE ROOM MAIN WIRE AND RELAY WIREEB140 (5S±FE)ENGINE ROOM MAIN WIRE AND RELAY WIRE
IH242FRONT DOOR LH WIRE AND INSTRUMENT PANEL WIRE
IJ142FLOOR NO. 1 WIRE AND COWL WIRE
IK142COWL WIRE AND A/C SUB WIRE
IL142COWL WIRE AND SERVO MOTOR SUB WIRE
IM242INSTRUMENT PANEL WIRE AND CONSOLE BOX WIRE
IO142FLOOR NO. 1 WIRE AND SEAT WIRE
IP344ENGINE WIRE AND COWL WIRE
IQ144ENGINE WIRE AND INSTRUMENT PANEL WIRE
IT144FRONT DOOR RH WIRE AND INSTRUMENT PANEL WIRE
IV144ROOF WIRE AND COWL WIRE
IV244ROOF WIRE AND COWL WIRE MADE IN USA
46 (S/D)
BX148 (C/P)FUEL GAUGE WIRE AND FLOOR NO. 1 WIREBX1
50 (W/G)
FUEL GAUGE WIRE AND FLOOR NO. 1 WIRE
BZ146 (S/D)LUGGAGE ROOM NO 1 WIRE AND FLOOR NO 1 WIREBZ148 (C/P)LUGGAGE ROOM NO. 1 WIRE AND FLOOR NO. 1 WIRE
Ba146 (S/D)FLOOR NO 1 WIRE AND LUGGAGE ROOM NO 2 WIREBa148 (C/P)FLOOR NO. 1 WIRE AND LUGGAGE ROOM NO. 2 WIRE
Bb150 (W/G)LUGGAGE ROOM NO. 1 WIRE AND FLOOR NO. 1 WIRE
Bc150 (W/G)BACK DOOR NO. 1 WIRE AND FLOOR NO. 1 WIRE
Bd350 (W/G)BACK DOOR NO. 1 WIRE AND BACK DOOR NO. 2 WIRE

261
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA38 (1MZ±FE)FRONT RIGHT FENDEREA40 (5S±FE)FRONT RIGHT FENDER
EB38 (1MZ±FE)FRONT LEFT FENDEREB40 (5S±FE)FRONT LEFT FENDER
EC38 (1MZ±FE)INTAKE MANIFOLD RHEC40 (5S±FE)INTAKE MANIFOLD RH
ED38 (1MZ±FE)INTAKE MANIFOLD LHED40 (5S±FE)INTAKE MANIFOLD LH
IE42LEFT KICK PANELIF42LEFT KICK PANEL
IG42INSTRUMENT PANEL BRACE LH
IH42INSTRUMENT PANEL BRACE RH
II42RIGHT KICK PANELIJ42RIGHT KICK PANEL
BK46 (S/D)ROOF LEFTBK48 (C/P)ROOF LEFT
46 (S/D)
BL48 (C/P)BL50 (W/G)UNDER THE LEFT QUARTER PILLAR
BM46 (S/D)UNDER THE LEFT QUARTER PILLAR
BM48 (C/P)
BN46 (S/D)UNDER THE RIGHT QUARTER PILLARBN48 (C/P)UNDER THE RIGHT QUARTER PILLAR
BO46 (S/D)LEFT QUARTER PILLARBO48 (C/P)LEFT QUARTER PILLAR
BP50 (W/G)BACK PANEL CENTER
BQ50 (W/G)LOWER BACK PANEL CENTER
BR50 (W/G)BACK DOOR CENTER
BS50 (W/G)BACK DOOR RIGHT
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E338 (1MZ±FE)B246 (S/D)FRONT DOOR LH WIREE 340 (5S±FE)B 250 (W/G)FRONT DOOR LH WIRE
E438 (1MZ±FE)B 446 (S/D)ROOF WIREE 440 (5S±FE)ENGINE ROOM MAIN WIREB 546 (S/D)ROOF WIRE
E538 (1MZ±FE)ENGINE ROOM MAIN WIRE
B1146 (S/D)FRONT DOOR RH WIREE 540 (5S±FE)B1150 (W/G)FRONT DOOR RH WIRE
E638 (1MZ±FE)B1646 (S/D)LUGGAGE ROOM NO. 2 WIREE 640 (5S±FE)B1848 (C/P)FRONT DOOR LH WIRE
E1438 (1MZ±FE)ENGINE WIREB2148 (C/P)ROOF WIRE
E1740 (5S±FE)ENGINE WIREB2548 (C/P)FLOOR NO 1 WIREI 5B2648 (C/P)FLOOR NO. 1 WIRE
I 7B2748 (C/P)FRONT DOOR RH WIRE
I 944COWL WIREB2848 (C/P)LUGGAGE ROOM NO. 1 WIRE
I1344COWL WIREB30
I14B3150 (W/G)ROOF WIREI1844ENGINE WIREB3250 (W/G)ROOF WIRE
B146 (S/D)FRONT DOOR LH WIREB3850 (W/G)BACK DOOR NO. 2 WIREB 150 (W/G)FRONT DOOR LH WIRE

Junction Block (The number in the circle is the
J/B No. and connector code is shown beside
it). Junction Blocks are shaded to clearly
separate them from other parts (different junc-
tion blocks are shaded differently for further
clarification.).
Example:
Indicates related system.
Indicates the wiring harness and wiring har-
ness connector. The wiring harness with male
terminal is shown with arrows
Outside numerals are pin numbers.
is used to indicate different wiring and
connector, etc. when the vehicle model, engine
type, or specification is different.
Indicates a shielded cable.
Indicates and located on ground point.
The same code occuring on the next page
indicates that the wire harness is continuous. System Title
Indicates the wiring color.
Wire colors are indicated by an alphabetical code.
B = Black L = Blue R = Red
BR = Brown LG = Light Green V = Violet
G = Green O = Orange W = White
GR = Gray P = Pink Y = Yellow
The first letter indicates the basic wire color and
the second letter indicates the color of the stripe.
Indicates the connector to be connected to a
part (the numeral indicates the pin No.)
The position of the parts is the same as shown
in the wiring diagram and wire routing.
Indicates the pin number of the connector.
The numbering system is different for female
and male connectors.
The numbering system for the overall wiring dia-
gram is the same as above.
Indicates a Relay Block. No Shading is used and
only the Relay Block No. is shown to distinguish
it from the J/B.
263

1
234
3CAMRY(
Cont. next page)
4ACC
IG1
ST1
IG2
ST2 AM1 2
7
9 10 AM2
31
1C 2D4IP1
5 4
M 3EF11IP1 IP118
EB BL1 2
1 2
1 2
1 2
1 2
1 2
Under the lef t
quarter piller Fro nt l ef t
fender
15A EFI 7. 5A OBD
2IM1 1G 3
1B 6
ED Intake manifold
LH10A
GAUGE B±O
L±BG± B
BR
R±L
W±B422 16 1523 8 12 14
123
EFI MAIN RELAY
(
Sh ort Pi n) AB
OX 1 WA WB D3
DA TA LI NK
CONNE CTOR 2
(
TDCL)
D1
DA TA LI NK
CONNE CTOR 1
(
CHECK CONNECTOR)
To ABS
ECU< 25±2>
< 26±3>
ABS
Fr om Cru i se
Control ECU< 24±3> Fr om ABS ECU
< 25±2> < 26±2>
Fr om Center Air bag
Sens or Ass mbly < 23±4>From ABS ECU
<25±2><26±3>
E1 I12
IGNITION SW
AB
I4
INJECTOR NO. 1
(
SHI ELDED) BATTERY
Fr om Center
Airbag Sensor
Assembly
< 23±4>C
15G±W GR ± BB±OB BR B±W W±GR±L
BRBR
MALFUNCTION I NDICATOR
LAMP(
CHECK E NGI NE
WARNING LIGHT) (
SHI ELDED)
TE1 B OX2
(
SHI ELDED)
WY GRL R G B±O G± R G± RR± LBR
From I gniter
< 1±3>
P o w e r S o u r c e Engine Control(
1MZ±FE)
FP E1 1
2H 2
To Center Air bag
Sens or Ass embly< 23±4>
To ABS ECU< 25±3> < 26±3>
To Cr ui se Con t r o l
ECU< 24±2>11TC
To ABS ECU
< 25±3> < 26±3>
2
TE2
112C 3 4
11M2
32D
BX1 4IJ1 16
IP111
IG I nst rument
panel brac e
LH33D
3D 12
13 3A
3C 18BX1 56
1D 9
6 1
64 2
3
22D6
22B66
B±W
Fro m º STARTERº
Fus e< 1 ±1 > To Ignit er
<1±3>
I9
INJECTOR NO. 6 I8
INJECTOR NO. 5 I7
INJECTOR NO. 4 I6
INJECTOR NO. 3 I5
INJECTOR NO. 2
2C
100A ALT
7. 5A IGN
CIRCUIT
OP EN I N G
RE LA Y
G±R
IP1 166A
3B
J2
JUNCTION
CONNECTOR
61A
11E
5
3
From Cooling Fan ECU
< 27±2>6 OPT
From ABS ECU
< 25±3> < 26±3>
TS
B±O
L±W
LG±R
R± G
R± L
R± Y
B
BR BR
G±RR± L B±O G± WGR±B B±Y B±Y L±B L±BW±B
W± B W± B
B±O
B±O B±O B±O
B±O
B±OG± RB± O B± O
B±O B±O
R± L
B
BRB±O B±O W± GW
B
W±G
W± B W± BW± BB
W
Y
L
BR B± O B± O B±OB±OL±BL±B G±R
B± O B±O W± B
40A
AM1
W W
B B
W±R
1G 8
1G 9
B±O
GB±O B±O
B±O
B± O
FL MAI N
2. 0LIP1 9 2G 1
30A AM2W± RB
Y± B4
TC
10
A/ D G± L
R±L
A 15 IP3
G±W B± OB± W
B±YB±Y
BR
Intake manifold
RHEC
G± R G± R18 3D
3D 7
IP1 19
(
SHI ELDED)
BR BR
1A
1BF1 0 A , F16 B
FUSE BOX
F1 5
FUEL PUMP
R
GR
A 19
J7
JUNCTION
CONNECTORC9 A ,C10 B
*Engine Contr ol Module(
Engine and Elect ronic Contr olled Tr ans mis sion ECU)
*Malfunction Indicator Lamp(
Check Engine War ning Light)