1994 TOYOTA CAMRY air condition

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

256
GROUND POINT*3 :W/POWERWINDOW *
2:TMMMADE * 1 : TMC MADE
* 6 : AIR CONDITIONING(
LEVER CONTROL SW TYPE) *
5 : AIR CONDITIONING(
PUSH CONTROL SW TYPE) * 4 : W/O POWER WINDOW
LIGHT CONTROL SW
[COMB. SW]
KEY INTERLOCK
SOLENOID
WIPER AND WASHER SW
[COMB. SW]
RE AR WINDOW
DEFOGGER SW
CLOCK
CIGARETTE LIGHTER
BRAKE FLUID LEVEL
SW
TURN SIGNAL FLASHER
MOON ROOF
CONTROL RELAY
MOON ROOF MOTOR
MOON ROOF LIMIT SW
RADIO AND PLAYER
STEREO COMPONENT
AMPLIFIERBLOWER RESISTOR
A/C AMPLIFIER HEATER CONTROL SW
(
PUSH CONTROL SW
TYPE)
OR AIR VENT
MODE CONTROL SW
(
LEVER CONTROL SW
TYPE) BLOWER SW
STARTER RELAY
COMBINATION METER
CIRCUIT OPENING
RELAY
DAYTIME RUNNING
LIGHT RELAY(
MAIN)
CRUISE CONTROL ECU
CRUISE CONTROL SW
[COMB. SW]
HEATER RELAY I7
I7
I7
I7
I7
I13I13 I13 I13 I12
IH IG II2F
4 1
IM27F FI5
I5 W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
BR
BR BRW±B W±BW±B
W±B
W±B W±BW±B
W±B
W±B
W±B
W±B
W±B W±B
W±B
W±B W±B
W±B W±B
W±B W±BW±BW±B W±B W±B W±B
W±B
W±BW±B
W±B
VANI TY LIGHT LHAIR VENT MODE CONTROL
SERVO MOTOR
W±B
W±B W±B W±B JUNCTION
CONNE CTOR J1
DIMMER SW
[COMB. SW]
IL17 IK 14
W±B
W±B
CENTER AIRBAG SENSOR
ASSEMBLY(
E2)6
VANITY LIGHT RHW±B W±B
W±B
W±B
MOON ROOF CONTROL SW
AND PERSONAL LI GHT
(
W/ CD PL AYER)(
CANADA)
(
W/O CD PLAYER)IE
W±BIV 2 IV1
(
W/G)(
S /D, C/P) (
*1)W±B W±B
(
*2)
(
*2)
B5:S/D
B21 : C/P
B32 : W/G
B4:S/D
B21 : C/P
B31 : W/G
BK : S/D, C/P
BP : W/G
6 6 W±B
I5
W±B
DA TA LINK
CONNE CTOR 3
F W±B
B4:S/D
B30 : W/G
B20 : C/PI7:*5
I14 : * 6
1 HIGH BEAM INDICATOR
LIGHT [COMB. METER]
CRUISE CONTROL
CLUCH SW W±B
NOISE FILTER
POWER MAIN RELAY
INTEGRATION RELAY
UNLOCK WARNING SW
[IGNITION SW] 1C11
W±B W±B
CENTER AIRBAG SENSOR
ASSEMBLY(
E1)
1G4
1F1
1M1
1I6 1F2
1M 51C 8
3C
3D6
3A13
3A12
3B5
3C 186
3B14DEFOGGER RELAY 1C10

25±2 (TMC Made)
26±2 (TMM Made)
ABS
(Anti±Lock Brake System)Air ConditioningAuto AntennaBack±Up LightBack Door Lock
(w/o Power Window)ChargingCombination MeterCruise ControlDoor LockElectric Tension Reducer
Engine ControlIlluminationInterior LightLight Auto Turn OffMoon RoofPower SeatPower SourcePower WindowRadiator Fan and
Condenser FanRadio and Player
36±76±2 (1MZ±FE)
7±2 (5S±FE)19±124±233±122±32±422±4 (W/G)6±7 (1MZ±FE)
7±7 (5S±FE)35±1(Lever Con±
trol SW Type)
36±1(Push Con±
trol SW Type)27±3 (W/G)28±3 (S/D,C/P)
Front Wiper and WasherHeadlight
Rear Window DefoggerRear Wiper and WasherRemote Control MirrorSRS (Supplemental
Restraint System)Shift LockStarting and IgnitionTurn Signal and Hazard
Warning LightUnlock and Seat Belt
Warning
34±3 (5S±FE)21±38±3 (for USA)
10±1 (for Canada)20±21~36±134±211±1 (S/D, C/P w/ Key
Illuminated Entry)
12±1 (W/G w/ Key
Illuminated Entry)
13±1 (S/D, C/P w/o Key
Illuminated Entry)
14±1 (W/G w/o Key
Illuminated Entry)18±418±23±1 (1MZ±FE)
4±1 (5S±FE A/T and
California M/T)
5±1 (5S±FE Ex. A/T
and California M/T)15±2
23±323±234±19±3 (S/D, C/P)
18±2 (W/G)1±2 (1MZ±FE)
2±2 (5S±FE)8±1 (W/G)
9±1 (S/D, C/P)
Taillight
24±4 (W/G)
28±1 (S/D,C/P)22±220±116±1 (S/D, C/P)
17±1 (W/G)
Stop Light
SYSTEM INDEX
21±129±1(S/D, C/P 6 Speaker)
30±1(W/G 8 Speaker)
31±1(S/D, C/P 4 Speaker)
32±2(W/G 6 Speaker)
264
Horn
Cigarette Lighter and
ClockElectrical Controlled
Transmission and
A/T Indicator
27±2 (1MZ±FE)
Electrically Controlled
Hydraulic Cooling Fan
1994 Model (Location No. 1 to 36)
OVERALL ELECTRICAL WIRING DIAGRAM

1
234
35 CAM RY
4ACC
IG1
ST1
IG2
ST2 AM1 2
AM2
1 2
M
M 7IP3 3EF1
3IK1 2IK16IL1 4 5
3 1
244
1G 9
44
1E 1
44 44
4C
145678 C 42
1B 61G 3
1
2
II IG1 584
3 HIM2 M1
LO
I L1 IL1 IL1 I L1 IL1 IL1
178654 754321
DRI VE
CIRCUIT
2 1
3 5
55 55
1
1 5 2249IP3 4EC1 IR14
12
4IP3 5IR1
891310 14 12
4 54 7 1 2
1B 1
1D 12
1 8IP1 W
B± W B
B± W
W± B W± B
W± B L
L±B L±WB R±L B±YW
R± L
R± L
W± R
R± L
W± BW±B
B W± B W W BWW
W
L
R± L R± L R±L R± L L±W W± BL±O G
R± B
R±W
W± R
L±W
B±W(
*1)
W±R(
*2)
L±B(
*1)
B±W(
*2)
L±YB±W
R± L
R±L L±YL±W(
*1)
W± L(
*2) W±L LG±B
B± YW± B
G± W
R
L±B
B±Y
R± Y L±OL±B L±RL L±WW± B W± B
W± B
B B
G GY±GB
R±LR± L R±L B± Y
3
B±W
61 23
Y
I12
IGNITION SW
40A
AM1
B4
BLOWER MOTORHE ATE R
MA I N RE LA Y 40A
HEATER10A
GAUGE
J1
JUNCTION
CONNECTOR
A17
AIR VENT MODE
CONTROL SERVO MOTOR
B5
BL OWER RESI STOR
FL MAIN
2. 0L
BATTERY
Right kick panel Ins trument panel
brace LH B6
BLOWER SW
H8
AIR VENT MODE CONTROL SWFrom Engine Contr ol Module
(
Engine and Elect ronic
Controlled Transmission
ECU)
<3±6><4±6>
From Engine Contr ol Module
(
Engine ECU)
<5±3>A2
A/C DUAL
PRESSURE SW A10
A/C AMPLIFIER A1 2
A/ C SWA1 1
A/ C EVAPORATOR
TEMP. SENSOR
A3
A/C MAGNETIC CLUTCH
AND LOCK SENSOR
10A
A/C
A/C MAGNETIC
CLUTCH RELAY
B OF F
100A ALT2
1To Radiator Fan
Relay No. 3< 34±4>
CONTROL
CIRCUIT
W± R
B±W
B±W
OF F ON
4IK1
6IR1
FACE
BI ±
LEVEL
FOOT
FOOT/
DE F
DEF
IK11
From I gniter
< 2±3> B*1 : 1MZ± FE
*2: 5S±FE
Power
SourceAir Conditioning(
Lever Control SW Type)
1B 1A
1CF10 A ,B
F16 C,
FUSE BOXA (
*1)
F10
1
1 B (
*2)
F10
C F1 6 FUSE BOX
(
*1)
(
*2)
(
*2) (
*1)

OVERALL ELECTRICAL WIRING DIAGRAM
1
234
36 CAM RY(
Cont. next page)
4ACC
IG1
ST1
IG2
ST2 AM1 2
AM2
4 5
3 1
2
2 61
3 4
441A 74
1E 1
441G 3
4
1G 9
44
IK11C CC
7IP3 3EF1
IK1
IIIG 2IK1 IK1
1
2
4
7 5
OFFLOM1M2M3M4M5 HIIL15
IL142
4
3M
1218 47 65 113 10 2 9
A/ C FRESH/ RECI RC F ACE BI ± LEVEL FOOT FOOT / DEF DEF
H8
HE ATE R CONTROL S W M 12
36IL1M
6754 321
IL17
3 IL1 1 IL12IL1
Instr ument panel
br ac e LH Right kick panel 40A
AM140A
HEATER
15A ECU±IG
10A A/C
W± B
B
B±WL±WW± BR± L R± L
R±L B±YW
L
L±R
L±BR±L
R± B
R±W
R± L
L±Y
R
L±O
L±B
W± B
L±W
L±B
L±O
W± B W± B
L±W W±BBWW
W± BW
W W
L
R±L
L±WL±YR Y±G R±WR± B W± BR± LW
R±L
R±L
Y±G
W± B
G± W
R
L±B
B±Y
R± Y
R± L R±L
BB B±Y
B± W 14 23
HEATER MAIN
RELAY
B5
BLOWER
RESI STOR
100A ALT FUSE BOX
J1
JUNCTION
CONNECTOR
BATTERYFL MAIN
2. 0L
A1 7
AI R V EN T MOD E CONTR OL S ER VO MOT OR
DRI VE
CIRCUIT
L±O
3
4
B4
BL OWER MOTORRECIRC FRESH
FACEBI±
LEVELFOOTFOOT/
DEFDE F
R±L
4
Power Source
Air Conditioning(
Push Control SW Type)
I12
IGNITION SW
B± W
B±W
A1 6
AIR INLET CONTROL
SERVO MOTOR
B6
BLOWER SW 1B 1A
1C(
*1)
(
*2)
F1 0 A , F1 6 C,B
10A GAUGE
1B 6B±R B± R*1 : 1 MZ± FE
*2 : 5S±FE

5
678
36 CAMRY(
Cont' d)
4IP3 5IR1 6IR1 122 1
3 555
55
4EC1
1 24 IP39
4 1
5147
IG1B 1
1D 12
IP18 10 8 9 13 14 12 2 R±L
R±B
R± WW± L
L±Y
G
W± BL±Y L±W(
*1)
W±L(
*2)
L±B(
*1)
B±W(
*2)
R± L
W± R
B±W
L±Y
R± LR±L R±L L±W
W± R
B W± B
B
B Fr om Engine Control Module
(
Engine and Electr onic
Cont rolled Transmission
ECU)
<3±6><4±6>
Fr om Engine Control Module
(
Engine ECU)
<5±3>
B±W(
*1)
W± R(
*2) R± B R±W
LG±B
B±Y
I nst rument panel
brace LHA1 1
A/ C EVAPORATOR
TEMP. SENSOR
A3
A/C MAGNETIC CLUTCH
AND LOCK SENSOR
To Radiator Fan
Relay No. 3< 34±4>B±W
A2
A/ C DUA L P RE SS URE SW
IR14
(
*2)
B
(
*2) (
*1)
Fr om Ign it er
<2±3>
Air Conditioning(
Push Control SW Type)
A/C MAGNETIC
CLUTCH RELAY
A10
A/C AMPLIFI ER
BL 1 2
1 2 2 11 2 1IJ13C 16
3A 514
3A
1 23IS1
G
B± R
B± RB±R
B±R R
G R± Y W± B
T2
TENSION
RE DUCE R
SOLENOID LHT3
TENSION
RE DUCE R
SOLE NOI D RH
D2 5
DI ODE
(
for Tension Reduc er)
B8
BUKLE
SW L HB1 0
BUKLE
SW RH
Under the left quar ter pillar
Electric Tension Reducer
*1 : 1MZ± FE
*2: 5S±FE
1
1 A (
*1)
F10
B (
*2)
F1 0
C F1 6 FUSE BOX B±R
B±R
Fr om Engine Control Module
(
Engine and Electr onic
Controlled Transmission
ECU)
< 3±6>