1994 TOYOTA CAMRY brake fluid

28
ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[1MZ±FE]
A 2 A/C Triple Pressure SW (A/C Dual and Single Pressure F 1 Front Airbag Sensor LH
SW) F 2 Front Airbag Sensor RH
A 3 A/C Magnetic Clutch and Lock Sensor F 3 Front Clearance Light LH
A 4 ABS Actuator F 4 Front Clearance Light RH
A 5 ABS Actuator F 5 Front Side Marker LH
A 6 ABS Relay F 6 Front Side Marker RH
A 7 ABS Relay F 7 Front Turn Signal Light LH
A 8 ABS Speed Sensor Front LH F 8 Front Turn Signal Light RH
A 9 ABS Speed Sensor Front RH F 9 Front Wiper Motor
F 10 Fuse Box
B 2 Brake Fluid Level SW F 16 Fuse Box
F 18 Fuse Box
C 2 Cruise Control Actuator
C 17 Camshaft Position Sensor G 1 Generator (Alternator)
C 18 Crankshaft Position Sensor G 2 Generator (Alternator)
D 1 Data Link Connector 1 (Check Connector) H 1 Headlight Hi LH
D 2 Distributor H 2 Headlight Hi RH
H 3 Headlight Lo LH
E 1 EGR Gas Temp. Sensor H 4 Headlight Lo RH
E 2 Electronic Controlled Transmission Solenoid H 5 Horn LH
E 4 Engine Coolant Temp. Sensor (EFI Water Temp. H 6 Horn RH
Sensor) H 11 Heated Oxygen Sensor (Bank 1 Sensor 1)
E 5 Engine Coolant Temp. Sensor (Water Temp. Sensor) H 12 Heated Oxygen Sensor (Bank 2 Sensor 1)
(for Cooling Fan)

30
ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[5S±FE]
A 1 A/C Condenser Fan Motor E 1 EGR Gas Temp. Sensor
A 2 A/C Triple Pressure SW (A/C Dual and Single Pressure E 2 Electronic Controlled Transmission Solenoid
SW) E 3 Electronic Controlled Transmission Solenoid
A 3 A/C Magnetic Clutch and Lock Sensor E 4 Engine Coolant Temp. Sensor (EFI Water Temp.
A 4 ABS Actuator Sensor)
A 5 ABS Actuator E 5 Water Temp. SW (for Cooling Fan)
A 6 ABS Relay
A 7 ABS Relay F 1 Front Airbag Sensor LH
A 8 ABS Speed Sensor Front LH F 2 Front Airbag Sensor RH
A 9 ABS Speed Sensor Front RH F 3 Front Clearance Light LH
F 4 Front Clearance Light RH
B 1 Back±Up Light SW (M/T) F 5 Front Side Marker LH
B 2 Brake Fluid Level SW F 6 Front Side Marker RH
F 7 Front Turn Signal Light LH
C 2 Cruise Control Actuator F 8 Front Turn Signal Light RH
F 9 Front Wiper Motor
D 1 Data Link Connector 1 (Check Connector) F 10 Fuse Box
D 2 Distributor F 16 Fuse Box
F 17 Fuse Box
F 18 Fuse Box
G 1 Generator (Alternator)
G 2 Generator (Alternator)

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

212
ABS (ANTI±LOCK BRAKE SYSTEM) (TMC MADE)
THIS SYSTEM CONTROLS THE RESPECTIVE BRAKE FLUID PRESSURES ACTING ON THE DISC BRAKE CYLINDERS OF THE RIGHT
FRONT WHEEL, LEFT FRONT WHEEL AND REAR WHEELS WHEN THE BRAKES ARE APPLIED IN A PANIC STOP SO THAT THE
WHEELS DO NOT LOCK. THIS RESULTS IN IMPROVED DIRECTIONAL STABILITY AND STEERABILITY DURING PANIC BRAKEING.
1. INPUT SIGNALS
(1) SPEED SENSOR SIGNAL
THE SPEED OF THE WHEELS IS DETECTED AND INPUT TO TERMINALS FL+, FR+, RL+ AND RR+ OF THE ABS ECU.
(2) STOP LIGHT SW SIGNAL
A SIGNAL IS INPUT TO TERMINAL STP OF THE ABS ECU WHEN BRAKE PEDAL IS OPERATED.
(3) PARKING BRAKE SW SIGNAL
A SIGNAL IS INPUT TO TERMINAL PKB OF THE ABS ECU WHEN THE PARKING BRAKE IS OPERATED.
2. SYSTEM OPERATION
DURING SUDDEN BRAKEING THE ABS ECU, WHICH HAS SIGNALS INPUT FROM EACH SENSOR, CONTROLS THE CURRENT
FLOWING TO THE SOLENOID INSIDE THE ACTUATOR AND LETS THE HYDRAULIC PRESSURE ACTING ON EACH WHEEL CYLINDER
ESCAPE TO THE RESERVOIR. THE PUMP INSIDE THE ACTUATOR IS ALSO OPERATING AT THIS TIME AND IT RETURNS THE BRAKE
FLUID FROM THE RESERVOIR TO THE MASTER CYLINDER, THUS PREVENTING LOCKING OF THE VEHICLE WHEELS.
IF THE ECU JUDGES THAT THE HYDRAULIC PRESSURE ACTING ON THE WHEEL CYLINDER IS INSUFFICIENT, THE CURRENT
ACTING ON THE SOLENOID IS CONTROLLED AND THE HYDRAULIC PRESSURE IS INCREASED. HOLDING OF THE HYDRAULIC
PRESSURE IS ALSO CONTROLLED BY THE ECU, BY THE SAME METHOD AS ABOVE. BY REPEATED PRESSURE REDUCTION,
HOLDING AND INCREASE ARE REPLATED TO MAINTAIN VEHICLE STABILITY AND TO IMPROVE STEERBILITY DURING SUDDEN
BRAKING.
A 4(A), A 5(B) ABS ACTUATOR
(A)1, (A)3, (A)4, (A)6 ± (A)2 : APPROX. 6 W
(A)2±GROUND : APPROX. 5 W
A 6(B), A 7(A) ABS RELAY
(A)1±(B) 3 : 60 W±100 W
(A)4±(B) 3 : 60 W±100 W
(A)1, (B) 2±GROUND : APPROX. 12 VOLTS
(A)6±GROUND : APPROX. 12 VOLTS
A 8, A 9 ABS SPEED SENSOR FRONT LH, RH
1±2 : 0.8 K±1.3 KW
A19, A20 ABS SPEED SENSOR REAR LH, RH
1±2 : 1.1 K±1.5 KW
A13(A), A14(B) ABS ECU
(CONNECT THE ECU CONNECTORS)
(A) 5±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND DATA LINK CONNECTOR 1 (CHECK CONNECTOR)
TS±EI NOT CONNECTED
(B)15±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND DATA LINK CONNECTOR 1 (CHECK CONNECTOR)
TS±EI NOT CONNECTED
(A) 1±GROUND, (A) 13±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND ABS WARNING LIGHT GOES OFF
(A)14±GROUND, (A) 1±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND ABS WARNING LIGHT GOES OFF
(A)26±GROUND, (A) 18±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND ABS WARNING LIGHT GOES OFF
(A) 2±GROUND : ALWAYS CONTINUITY
(A)15±GROUND : ALWAYS CONTINUITY
(A)12±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
(B) 6±GROUND : APPROX. 12 VOLTS WITH BRAKE PEDAL DEPRESSED
(A)25±GROUND : ALWAYS APPROX. 12 VOLTS
SYSTEM OUTLINE
SERVICE HINTS

218
ABS (ANTI±LOCK BRAKE SYSTEM) (TMM MADE)
THIS SYSTEM CONTROLS THE RESPECTIVE BRAKE FLUID PRESSURES ACTING ON THE DISC BRAKE CYLINDERS OF THE RIGHT
FRONT WHEEL, LEFT FRONT WHEEL AND REAR WHEELS WHEN THE BRAKES ARE APPLIED IN A PANIC STOP SO THAT THE
WHEELS DO NOT LOCK. THIS RESULTS IN IMPROVED DIRECTIONAL STABILITY AND STEERABILITY DURING PANIC BRAKEING.
1. INPUT SIGNALS
(1) SPEED SENSOR SIGNAL
THE SPEED OF THE WHEELS IS DETECTED AND INPUT TO TERMINALS FL+, FR+, RL+ AND RR+ OF THE ABS ECU.
(2) STOP LIGHT SW SIGNAL
A SIGNAL IS INPUT TO TERMINAL STP OF THE ABS ECU WHEN BRAKE PEDAL IS OPERATED.
2. SYSTEM OPERATION
DURING SUDDEN BRAKEING THE ABS ECU, WHICH HAS SIGNALS INPUT FROM EACH SENSOR, CONTROLS THE CURRENT
FLOWING TO THE SOLENOID INSIDE THE ACTUATOR AND LETS THE HYDRAULIC PRESSURE ACTING ON EACH WHEEL CYLINDER
ESCAPE TO THE RESERVOIR. THE PUMP INSIDE THE ACTUATOR IS ALSO OPERATING AT THIS TIME AND IT RETURNS THE BRAKE
FLUID FROM THE RESERVOIR TO THE MASTER CYLINDER, THUS PREVENTING LOCKING OF THE VEHICLE WHEELS.
IF THE ECU JUDGES THAT THE HYDRAULIC PRESSURE ACTING ON THE WHEEL CYLINDER IS INSUFFICIENT, THE CURRENT
ACTING ON THE SOLENOID IS CONTROLLED AND THE HYDRAULIC PRESSURE IS INCREASED. HOLDING OF THE HYDRAULIC
PRESSURE IS ALSO CONTROLLED BY THE ECU, BY THE SAME METHOD AS ABOVE. BY REPEATED PRESSURE REDUCTION,
HOLDING AND INCREASE ARE REPLATED TO MAINTAIN VEHICLE STABILITY AND TO IMPROVE STEERBILITY DURING SUDDEN
BRAKING.
A 8, A 9 ABS SPEED SENSOR FRONT LH, RH
1±2 : 0.8 K±1.3 KW
A19, A20 ABS SPEED SENSOR REAR LH, RH
1±2 : 1.1 K±1.5 KW
A 4(A), A 5(B) ABS ECU
(CONNECT THE ECU CONNECTORS)
(A)12±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND DATA LINK CONNECTOR 1 (CHECK CONNECTOR)
TS±EI NOT CONNECTED
(A)15±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND DATA LINK CONNECTOR 1 (CHECK CONNECTOR)
TS±EI NOT CONNECTED
(B) 4±GROUND : ALWAYS CONTINUITY
(B) 2±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
(A) 9±GROUND : APPROX. 12 VOLTS WITH BRAKE PEDAL DEPRESSED
(B) 1±GROUND : ALWAYS APPROX. 12 VOLTS
SYSTEM OUTLINE
SERVICE HINTS

237
*
1 : W/O A/T INDICATOR LIGHT
* 2 : W/ A/T INDICATOR LIGHT
*
3 : MALFUNCTION INDICATOR LAMP
(
CHECK ENGINE WARNING LIGHT)
*7 : 5S±FE *
6 : 1MZ±FE * 5 : TMM MADE
*
4:TMCMADE
AB
C
COMBINATION METER1
IEIF 2 1B 15 B3B9B13
B 12B 8B14 C 1 C 3 A 9A 10C 2
II1 4
11B DE 18 A
FB E D
8 A
FAFROM POWER SOURCE SYSTEM(
SEE PAGE 64)
B±W
R±Y
R±GW±R Y±G B±W
B±O G± L
G±R
R±Y R±Y W±BG±RG± L
±B W±B
R±W R±W
R±W
G±O
Y
B±Y
R±BB±YY G±O R±Y
R±Y
R±W 10A
STARTER
TO LIGHT FAILURE
SENSOR
FROM º HEAD RHº FUSE
FROM º HEAD(
UP R±RH)
ºFUSE
(
CA NADA) (
USA) CRUISE
(
*3)
BRAKE
BULB
CHECK
RE AR LIGHT
O/D OFF
CHARGE
SRS
HIGH BEAM
PKB BRK
TOO/DMAINSW
TO GENERATOR(
ALTERNATOR)
TO CENTER AIRBAG
SENSOR ASSEMBLY
TO DIMMER SW
[COMB. SW] TO CRUISE CONTROL ECU
TO E NGINE CONTROL MODULE
(
ENGINE AND ELECTRONIC CONTROLLED
TRANSMISSION ECU)(
A/T)
TO E NGINE CONTROL MODULE
(
ENGINE ECU)(
M/T)
BRAKE FLUID
LEVEL SWJUNCTION
CONNECTOR
JUNCTION
CONNE CTOR
DAYTIME RUNNING
LIGHT RELAY
(
MAIN) PARKING
BRAKE SW
PARKING
BRAKE SW(
EX. 1MZ±FE A/T)
(
1MZ±FE A/T)
JUNCTION
CONNECTOR
JUNCTION
CONNECTOR (
USA)
(
CANA DA) C8 ,C9 , C10
J2
J2 B2
P3
P2 D4
J2
J3(
*1) (
*1)
(
USA)
II1 2
I6
G±O
G±O G±O
(
*2) FROM A/T
INDICATOR LIGHT
W±B
(
CA NADA)(
*5) (
*5)
O
(
*4)O
(
*4)
4
3B 203C 2
1D 31F3 7. 5A
IGN7. 5A
SRS
3B 19 3D19 3B 83D18
3D 83C8 3A 10
1M 51C 8
W

239
B 2 BRAKE FLUID LEVEL SW1±2 : CLOSED WITH FLOAT DOWN
C 8(A), C 9(B), C10(C)
COMBINATION METER(A)2, (B)6, (B)9±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
(A)3, (B)14, (C)8±GROUND : ALWAYS CONTINUITY
F15
FUEL SENDER2±3 : APPROX. 3
WITH FUEL FULL
APPROX. 110.0
WITH FUEL EMPTY
O 1
OIL PRESSURE SW1±GROUND : CLOSED WITH OIL PRESSURE BELOW 0.2 KG/CM2 (2.84 PSI, 19.61 KPA)
P 2
PARKING BRAKE SW (1MZ±FE A/T)1±GROUND : CLOSED WITH PARKING BRAKE PEDAL DEPRESSED
P 3
PARKING BRAKE SW (EX. 1MZ±FE A/T)1±GROUND : CLOSED WITH PARKING BRAKE LEVER PULLED UP
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
B 228 (1MZ±FE), 30 (5S±FE)D 432P 233
C 8A32F1534 (S/D), 35 (C/P), 36 (W/G)P 333
C 9B32I 228 (1MZ±FE), 30 (5S±FE)V 528 (1MZ±FE), 30 (5S±FE)
C10C32J 233W 228 (1MZ±FE), 30 (5S±FE)
C1432O 128 (1MZ±FE), 30 (5S±FE)
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
125R/B NO. 1 (LEFT KICK PANEL)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B
1C
1D20COWL WIRE AND J/B NO 1 (INSTRUMENT PANEL LEFT)1F20COWL WIRE AND J/B NO. 1 (INSTRUMENT PANEL LEFT)
1L
1M
2G22COWL 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)
II142COWL WIRE AND INSTRUMENT PANEL WIRE
IJ142FLOOR NO. 1 WIRE AND COWL WIRE
IP144ENGINE WIRE AND COWL WIREIP344ENGINE WIRE AND COWL WIRE
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
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
ED38 (1MZ±FE)INTAKE MANIFOLD LHED40 (5S±FE)INTAKE MANIFOLD LH
IE42LEFT KICK PANELIF42LEFT KICK PANEL
IG42INSTRUMENT PANEL BRACE LH
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I 644INSTRUMENT PANEL WIREI1344COWL WIRE
I 944COWL WIREI1844ENGINE WIRE
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