1994 TOYOTA CAMRY blower

32
ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
A 10 A/C Amplifier C 12 Combination SW
A 11 A/C Evaporator Temp. Sensor C 13 Combination SW
A 12 A/C SW C 14 Cooling Fan ECU
A 13 ABS ECU C 15 Cruise Control Clutch SW (M/T)
A 14 ABS ECU C 16 Cruise Control ECU
A 15 Airbag Squib (Steering Wheel Pad)
A 16 Air Inlet Control Servo Motor D 3 Data Lik Connector 2 (TDCL (Toyota Diagnostic
A 17 Air Vent Mode Control Servo Motor Communication Link))
A 18 Ashtray Illumination D 4 Daytime Running Light Relay (Main)
A 22 Airbag Squib (Front Passenger Airbag Assembly) D 5 Diode (for Cruise Control)
D 6 Diode (for Idle±Up)
B 3 Back Door Lock Control SW D 7 Diode (for Courtesy)
B 4 Blower Motor D 8 Door Lock Control Relay)
B 5 Blower Resistor D 24 Date Link Connector 3
B 6 Blower SW D 25 Diode (for Tension Reducer)
B 7 Buckle SW LH (w/ Power Seat)
B 8 Buckle SW LH (w/o Power Seat) E 6 Electronic Controlled Transmission Pattern Select SW
B 10 Buckle SW RH E 7 Engine Control Module (Engine and Electronic
Controlled Transmission ECU) (A/T)
C 3 Center Airbag Sensor Assembly E 8 Engine Control Module (Engine and Electronic
C 4 Cigarette Lighter Controlled Transmission ECU) (A/T)
C 5 Cigarette Lighter Illumination E 9 Engine Control Module (Engine and Electronic
C 6 ClockControlled Transmission ECU) (A/T)
C 7 Clutch Start SW (M/T) E 10 Engine Control Module (Engine and Electronic
C 8 Combination Meter Controlled Transmission ECU) (A/T)
C 9 Combination Meter E 11 Engine Control Module (Engine ECU) (M/T)
C 10 Combination Meter E 12 Engine Control Module (Engine ECU) (M/T)
C 11 Combination Meter E 14 Engine Control Module (Engine ECU) (M/T)

54
POWER SOURCE (Current Flow Chart)
40A AM1
15A CIG/RADIO
40A DEFOG
15A ECU±1G
10A GAUGE
7.5A IGN
10A MIR±HTR
30A POWER
7.5A SRS
15A STOP
15A TAIL
7.5A TURN
20A WIPER
30A AM2
7.5A ALT±S
30A CDS FAN
20A DOME
15A ECU±B
15A EFI
10A HAZ
15A HEAD (LWR±LH)
15A HEAD (LWR±RH)
15A HEAD (UPR±LH)
15A HEAD (UPR±RH)
15A HEAD LH
15A HEAD RH
10A HORN
40A MAIN
7.5A OBD
10A STARTER
10A A/C
40A HEATER
7.5A DRL
100A ALT
60A ABS
A/C Condenser Fan Motor (5S±FE)
242
A4 A5 A11 A1*Page Nos. of
Related Systems
Parts
Code or
Location
CB or Fuse
LocationA2 A3
* These are the page numbers of the first page on which the related system is shown.
The part indicated is located somewhere in the system, not necessarily on the page indicated here.


A12 A6 A7 A13 A17 A18A14 A16 A21 B1 B2 B3 B4 B5 B6 B7 B9 B10 214 252126
252210 210 246246
252126222
224152 236 166246
252246
252126
246
252160
166 220 220
A/C Triple Pressure SW (A/C Dual
and Single Pressure SW)
A/C Magnetic Clutch and Lock
Sensor
ABS Actuator and ECU
(TMM Made)
ABS Actuator (TMC Made)
ABS Actuator and ECU
(TMM Made)
ABS Relay
A/C Amplifier
A/C SW
ABS ECU (TMC Made)
Air Inlet Control Servo Motor
Air Vent Mode Control Servo Motor
Ashtray Illumination
Auto Antenna Motor and Relay
Back±Up Light SW (M/T)
Brake Fluid Level SW
Back Door Lock Control SW
Blower Motor
Blower Resistor
Blower SW
Buckle SW LH
Back Door Lock Motor (W/G)
Buckle SW RH
A10246
252 210 210 210 214 246
252 242
246
252
ABS ECU (TMC Made)A/C Evaporator Temp. Sensor ABS Relay
[LOCATION](1)
(7): J/B No. 1 (See page 20)
: R/B No. 7 (See page )(2)
(8): J/B No. 2 (See page 19)
: Fuse Box (F10, F17 See
on page )(3): R/B No. 1 (See page 23)
2022
25
27
28 29

127
A15
3A
C
IF I14 I16
I14
I164 2
1 2 II2 16
II2 12 B 16
B 6B4 A 6A14C 2
A 13A 8
B 7A
B
B 5
CAAAA
13
B A
21
CCC
C
B2
B2 1 1 2
B
BB
BG
G G
G
G
G G G
G
G
G
G G±WB BB B B
B
W±BW±B W±BB
G
BBJUNCTION CONNECTOR
JUNCTION CONNECTOR
COMBINATION METER
BLOWER SW
RADIO AND PLAYER
A/T INDICATOR LIGHT
[COMB. METER]
ELECTRONIC CONTROLLED
TRANSMISSION PATTERN
SELECT SWA/T INDICATOR LIGHT
(
SHIFT LEVER)
RHEOSTAT
GLOVE BOX LIGHT(
PUSH SW TYPE)
(
LEVER SW TYPE)
GLOVE BOX SW
JUNCTION
CONNECTOR J2 J2 J2
R7
G4 G3E6O5 C11 C8 , C9
B6B
B A
R2 ,R3 ,R4B A12
B
IN1 2
IN1 1
BG
IM2 10
A 10
C 9
IM1 5
(
W/O CD PLAYER)
(
W/ CD PLAYER)G W±G B(
W/ CD PLAYER) (
W/O CD PLAYER)
(
W/ CD PLAYER)(
W/O CD PLAYER)
G
(
W/ CD PLAYER) (
PUSH SW TYPE)
(
LEVER SW TYPE) H8AA/C SW
HEATER CONTROL SW
I17 G
(
W/ CD PLAYER) G
G
1D 11 1B4 1D 10
1L7
1D 11L8 1D 21B5

246
AIR CONDITIONING (PUSH CONTROL SW TYPE)
C
623 43
C 251
12 C
1
2
4
7
5 44
444
M
1 2
IK1 1IK13IK 1 2 4
I7 I7
I12
I13
I14
I13
IG HI M5 M4 M3 M2 M1 LO OFFBLOWER SW IK1 5
IK1 4I5
1
IIW±B R±L R±L
B
L±W
L±W
W±B
W±B W±B W±B W±BW±B L±B L±OB±W
L±BB±R BW±B W±B
L
R±L R±L
R±L
R±LR±L
W±B
W±B
W±B L±O
B±WFROM POWER 64)
BLOWER RESISTOR HE ATE R
RE LA Y 40A
HEA TER
JUNCTION
CONNECTOR
HEATER CONTROL SWB
R±L
R±L
R±L
W±B FROM POWER SOURCE SYSTEM(
SEE PAGE 64)
BLOWER MOTOR B4
B5
B6
H8 J1
1 4
W±B
B
I21
B
I14
B±W
1B 610A
GAUGE S OURCE SY STE M(
SEE PAGE

249
1. AIR INLET CONTROL SERVO MOTOR OPERATION (FOR PUSH SW TYPE)
(SWITCHING FROM FRESH TO RECIRC)
WITH THE IGNITION SW ON, CURRENT FROM THE GAUGE FUSE FLOWS TO TERMINAL 1 OF THE SERVO MOTOR. WHEN THE
RECIRC SW IS TURNED ON, THE CURRENT FLOWS FROM SERVO MOTOR " TERMINAL 3 " TERMINAL 5 OF THE HEATER
CONTROL SW " TERMINAL 1 " GROUND, THE MOTOR ROTATES AND THE DAMPER MOVES TO THE RECIRC SIDE. WHEN IT IS IN
THE RECIRC POSITION, THE CIRCUIT IS CUT INSIDE THE SERVO MOTOR AND THE DAMPER STOPS IN THAT POSITION.
WHEN THE CIRCUIT FOR THE INDICATOR LIGHT, CURRENT FLOWS FROM THE GAUGE FUSE " TERMINAL 12 OF THE HEATER
CONTROL SW " INDICATOR LIGHT " TERMINAL 1 " GROUND AND THE INDICATOR LIGHT CONTINUES TO LIGHT UP WHILE THE
RECIRC SW IS ON.
(SWITCHING FROM RECIRC TO FRESH)
WHEN THE IGNITION IS ON AND THE FRESH SW IS TURNED ON, CURRENT FLOWS FROM TERMINAL 2 OF THE SERVO MOTOR "
TERMINAL 6 OF THE HEATER CONTROL SW " TERMINAL 1 " GROUND, THE MOTOR ROTATES AND THE DAMPER MOVES TO THE
FRESH SIDE. WHEN THE DAMPER IS IN THE FRESH POSITION, THE CIRCUIT IS CUT INSIDE THE SERVO MOTOR AND THE DAMPER
STOPS IN THAT POSITION.
2. OPERATION OF AIR VENT MODE CONTROL SERVO MOTOR
WHEN THE IGNITION SW ON, CURRENT FLOWS FROM THE GAUGE FUSE TO TERMINAL 12 OF THE HEATER CONTROL SW,
TERMINAL 6 OF THE AIR VENT MODE CONTROL SERVO MOTOR.
WHEN THE DAMPER IS IN FACE POSITION AND THE BI±LEVEL OF THE HEATER CONTROL SW IS THEN TURNED ON, CURRENT
FLOWS FROM TERMINAL 3 OF THE HEATER CONTROL SW " TERMINAL 4 OF THE AIR VENT MODE CONTROL SERVO MOTOR SO
THAT A SINGAL 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 MADE OR GROUND IS NOT MADE (AS EXPLAINED ABOVE) ACTIAVTES THE CONTROL CIRCUIT AND
MOVES THE SERVO MOTOR TO THE DESIRED POSITION.
3. AIR CONDITIONING OPERATION
WHEN THE IGNITION SW ON, CURRENT FLOWS FROM GAUGE FUSE TO TERMINAL 12 OF THE HEATER CONTROL SW, TERMINAL 6
OF THE AIR VENT MODE CONTROL SERVO MOTOR.
WHEN THE BLOWER SW IS ON, CURRENT FLOWS FROM THE GAUGE FUSE " HEATER RELAY (COIL SIDE) " TERMINAL 7 OF THE
BLOWER SW " TERMINAL 5 " GROUND, ACTIVATING THE HEATER RELAY. THIS CAUSES CURRENT TO FLOW FROM THE HEATER
FUSE TO THE HEATER RELAY (POINT SIDE) " A/C FUSE " TERMINAL 7 OF THE HEATER CONTROL SW (A/C SW). IF THE HEATER
CONTROL (A/C SW) IS THEN TURNED ON AT THIS TIME, A SIGNAL IS INPUT TO THE A/C AMPLIFIRE. THIS ACTIVATES THE A/C
AMPLIFIER 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
(4)5± (4)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±2 : APPROX. 1.12 W
2±3 : APPROX. 0.5 W
3±1 : APPROX. 0.2 W
SYSTEM OUTLINE
SERVICE HINTS

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