1994 TOYOTA CAMRY fuel

15
ABBREVIATIONS
ABBREVIATIONS
The following abbreviations are used in this manual.
ABS = Anti±Lock Brake System
ACIS = Acoustic Control Induction System
A/C = Air Conditioning
A/T = Automatic Transmission
COMB. = Combination
C/P = Coupe
ECU = Electronic Control Unit
EFI = Electronic Fuel Injection
EGR = Exhaust Gas Recirculation
ESA = Electronic Spark Advance
Ex. = Except
FL = Fusible Link
IAC = Idle Air Control
ISC = Idle Speed Control
J/B = Junction Block
LH = Left-Hand
MFI = Multiport Fuel Injection
M/T = Manual Transmission
O/D = Overdrive
R/B = Relay Block
RH = Right±Hand
RPM = Engine Speed
S/D = Sedan
SFI = Sequential Multiport Fuel Injection
SRS = Supplemental Restraint System
SW = Switch
TEMP. = Temperature
VSV = Vacuum Switching Valve
W/G = Wagon
w/ = With
w/o = Without
*The titles given inside the components are the names of the terminals (terminal codes) and
are not treated as being abbreviations.

METER, ANALOG
Current flow activates a magnetic
coil which causes a needle to
move, thereby providing a relative
display against a background
calibration. LED (LIGHT EMITTING DIODE)
Upon current flow, these diodes
emit light without producing the
heat of a comparable light. IGNITION COIL
Converts low±voltage DC current
into high±voltage ignition current
for firing the spark plugs. 1. SINGLE
FILAMENT
GROUND
The point at which wiring attaches
to the Body, thereby providing a
return path for an electrical circuit;
without a ground, current cannot
flow.Current flow causes a headlight
filament to heat up and emit light.
A headlight may have either a
single (1) filament or a double (2)
filament. BATTERY
Stores chemical energy and
converts it into electrical energy.
Provides DC current for the auto's
various electrical circuits.
CAPACITOR (Condenser)
A small holding unit for temporary
storage of electrical voltage.
CIRCUIT BREAKER
Basically a reusable fuse, a circuit
breaker will heat and open if too
much current flows through it. Some
units automatically reset when cool,
others must be manually reset.
DIODE
A semiconductor which allows
current flow in only one direction.
DIODE, ZENER
A diode which allows current flow
in one direction but blocks reverse
flow only up to a specific voltage.
Above that potential, it passes the
excess voltage. This acts as a
simple voltage regulator.
FUSE
A thin metal strip which burns
through when too much current
flows through it, thereby stopping
current flow and protecting a
circuit from damage.
FUSIBLE LINK
A heavy±gauge wire placed in
high amperage circuits which
burns through on overloads,
thereby protecting the circuit.
The numbers indicate the cross±
section surface area of the wires.HORN
An electric device which sounds a
loud audible signal.
LIGHT
Current flow through a filament
causes the filament to heat up
and emit light.
METER, DIGITAL
Current flow activates one or
many LED's, LCD's, or fluorescent
displays, which provide a relative
or digital display.
MOTOR
A power unit which converts
electrical energy into mechanical
energy, especially rotary motion. CIGARETTE LIGHTER
An electric resistance heating
element.
DISTRIBUTOR, IIA
Channels high±voltage current
from the ignition coil to the
individual spark plugs.2. DOUBLE
FILAMENT HEADLIGHTS
FUEL
(for High Current Fuse or
Fusible Link.)
(for Medium Current Fuse)
M
16
GLOSSARY OF TERMS AND SYMBOLS

29
Position of Parts in Engine Compartment
[1MZ±FE]
I 1 Idle Air Control Valve (ISC Valve) N 1 Noise Filter (for Ignition System)
I 2 Igniter
I 4 Injector No. 1 O 1 Oil Pressure SW
I 5 Injector No. 2 O 6 O/D Direct Clutch Speed Sensor
I 6 Injector No. 3
I 7 Injector No. 4 P 1 Park/Neutral Position SW (Neutral Start SW) (A/T)
I 8 Injector No. 5
I 9 Injector No. 6 S 1 Solenoid Valve (for Hydrauric Motor)
I 15 Igniter S 3 Starter
I 16 Ignition Coil No. 1 S 4Starter
I 17 Ignition Coil No. 2
I 18 Ignition Coil No. 3 T 1 Throttle Position Sensor
I 19 Ignition Coil No. 4
I 20 Ignition Coil No. 5 V 1 VSV (for A/C Idle±Up)
I 21 Ignition Coil No. 6 V 2 VSV (for EGR System)
V 3 VSV (for Fuel Pressure Up)
J 6 Junction Connector V 4 VSV (for Intake Air Control)
V 5 Vehicle Speed Sensor (Speed Sensor)
K 1 Knock Sensor 1
K 2 Knock Sensor 2 W 1 Washer Motor
W 2 Water Temp. Sender
M 6 Mass Air Flow (Air Flow Meter)

31
Position of Parts in Engine Compartment
[5S±FE]
H 1 Headlight Hi LH O 1 Oil Pressure SW
H 2 Headlight Hi RH O 2 Oxygen Sensor (Sub)
H 3 Headlight Lo LH O 3 Oxygen Sensor (Main)
H 4 Headlight Lo RH
H 5 Horn LH P 1 Park/Neutral Position SW (Neutral Start SW) (A/T)
H 6 Horn RH
R 1 Radiator Fan Motor
I 1 Idle Air Control Valve (ISC Valve)
I 2 Igniter S 3 Starter
I 3 Ignition Coil S 4Starter
I 4 Injector No. 1
I 5 Injector No. 2 T 1 Throttle Position Sensor
I 6 Injector No. 3
I 7 Injector No. 4 V 1 VSV (for A/C Idle±Up)
I 10 Intake Air Temp. Sensor (In±Air Temp. Sensor) V 2 VSV (for EGR System)
V 3 VSV (for Fuel Pressure Up)
K 1 Knock Sensor V 5 Vehicle Speed Sensor (Speed Sensor)
M 1 Manifold Absolute Pressure Sensor (Vacuum Sensor) W 1 Washer Motor
W 2 Water Temp. Sender
N 1 Noise Filter (for Ignition System)

34
ELECTRICAL WIRING ROUTING
Position of Parts in Body
[Sedan]
A 19 ABS Speed Sensor Rear LH L 3 Luggage Compartment Light
A 20 ABS Speed Sensor Rear RH L 4 Luggage Compartment Light SW
A 21 Auto Antenna Motor and Relay
M 2 Moon Roof Control Relay
D 10 Door Courtesy Light Front LH M 3 Moon Roof Control SW and Personal Light (w/ Moon
D 11 Door Courtesy Light Front RH Roof)
D 12 Door Courtesy SW Front LH M 4 Moon Roof Limit SW
D 13 Door Courtesy SW Front RH M 5 Moon Roof Motor
D 14 Door Courtesy SW Rear LH
D 15 Door Courtesy SW Rear RH P 9 Power Window Control SW Front RH
D 16 Door Key Cylinder Light and SW P 10 Power Window Control SW Rear LH
D 17 Door Key Lock and Unlock SW LH P 11 Power Window Control SW Rear RH
D 18 Door Key Lock and Unlock SW RH P 12 Power Window Master SW and Door Lock Control SW
D 19 Door Lock Control SW RH LH
D 20 Door Lock Motor and Door Unlock Detection SW Front P 13 Power Window Motor Front LH
LHP 14 Power Window Motor Front RH
D 21 Door Lock Motor and Door Unlock Detection SW Front P 15 Power Window Motor Rear LH
RHP 16 Power Window Motor Rear RH
D 22 Door Lock Motor Rear LH
D 23 Door Lock Motor Rear RH R 8 Rear Combination Light LH
R 9 Rear Combination Light LH
F 11 Front Door Speaker LH R 10 Rear Combination Light RH
F 12 Front Door Speaker RH R 11 Rear Combination Light RH
F 13 Front Tweeter (Speaker) LH R 12 Rear Speaker LH
F 14 Front Tweeter (Speaker) RH R 13 Rear Speaker RH
F 15 Fuel Pump and Sender R 16 Rear Window Defogger (+)
R 17 Rear Window Defogger (±)
H 10 High Mount Stop Light R 20 Remote Control Mirror LH
R 21 Remote Control Mirror RH
I 14 Interior Light
V 8 Vanity Light LH
L 1 License Plate Light V 9 Vanity Light RH
L 2 Light Failure Sensor

35
Position of Parts in Body
[Coupe]
A 19 ABS Speed Sensor Rear LH M 2 Moon Roof Control Relay
A 20 ABS Speed Sensor Rear RH M 3 Moon Roof Control SW and Personal Light
A 21 Auto Antenna Motor and Relay (w/ Moon Roof)
M 4 Moon Roof Limit SW
D 10 Door Courtesy Light Front LH M 5 Moon Roof Motor
D 11 Door Courtesy Light Front RH
D 12 Door Courtesy SW Front LH P 9 Power Window Control SW Front RH
D 13 Door Courtesy SW Front RH P 12 Power Window Master SW and Door Lock Control
D 16 Door Key Cylinder Light and SW SW LH
D 19 Door Lock Control SW RH P 13 Power Window Motor Front LH
D 26 Door Lock Motor, Door Unlock Detection SW P 14 Power Window Motor Front RH
Door Key Lock and Unlock SW LH
D 27 Door Lock Motor, Door Unlock Detection SW R 8 Rear Combination Light LH
Door Key Lock and Unlock SW RH R 9 Rear Combination Light LH
D 28 Door Lock Control SW LH (w/o Power Window) R 10 Rear Combination Light RH
R 11 Rear Combination Light RH
F 11 Front Door Speaker LH R 12 Rear Speaker LH
F 12 Front Door Speaker RH R 13 Rear Speaker RH
F 13 Front Tweeter (Speaker) LH R 16 Rear Window Defogger (+)
F 14 Front Tweeter (Speaker) RH R 17 Rear Window Defogger (±)
F 15 Fuel Pump and Sender R 20 Remote Control Mirror LH
R 21 Remote Control Mirror RH
H 10 High Mount Stop Light
T 2 Tension Reducer Solenoid LH
I 14 Interior Light T 3 Tension Reducer Solenoid RH
L 1 License Plate Light V 8 Vanity Light LH
L 2 Light Failure Sensor V 9 Vanity Light RH
L 3 Luggage Compartment Light
L 4 Luggage Compartment Light SW

36
ELECTRICAL WIRING DIAGRAM
Position of Parts in Body
[Wagon]
A 19 ABS Speed Sensor Rear LH F 13 Front Tweeter (Speaker) LH P 11 Power Window Control SW Rear
A 20 ABS Speed Sensor Rear RH F 14 Front Tweeter (Speaker) RH RH
A 21 Auto Antenna Motor and Relay F 15 Fuel Pump and Sender P 12 Power Window Master SW and
Door Lock Control SW LH
D 10 Door Courtesy Light Front LH H 10 High Mount Stop Light P 13 Power Window Motor Front LH
D 11 Door Courtesy Light Front RH P 14 Power Window Motor Front RH
D 12 Door Courtesy SW Front LH I 14 Interior Light P 15 Power Window Motor Rear LH
D 13 Door Courtesy SW Front RH P 16 Power Window Motor Rear RH
D 14 Door Courtesy SW Rear LH L 1 License Plate Light
D 15 Door Courtesy SW Rear RH L 2 Light Failure Sensor R 8 Rear Combination Light LH
D 16 Door Key Cylinder Light and SW L 3 Luggage Compartment Light R 9 Rear Combination Light LH
D 17 Door Key Lock and Unlock SW LH L 4 Luggage Compartment Light SW R 10 Rear Combination Light RH
D 18 Door Key Lock and Unlock SW RH R 11 Rear Combination Light RH
D 19 Door Lock Control SW RH M 2 Moon Roof Control Relay R 12 Rear Speaker LH
D 20 Door Lock Motor and Door Unlock M 3 Moon Roof Control SW and R 13 Rear Speaker RH
Detection SW Front LH Personal Light (w/ Moon Roof) R 16 Rear Window Defogger (+)
D 21 Door Lock Motor and Door Unlock M 4 Moon Roof Limit SW R 17 Rear Window Defogger (±)
Detection SW Front RH M 5 Moon Roof Motor R 20 Remote Control Mirror LH
D 22 Door Lock Motor Rear LH R 21 Remote Control Mirror RH
D 23 Door Lock Motor Rear RH P 9 Power Window Control SW Front
RH V 8 Vanity Light LH
F 11 Front Door Speaker LH P 10 Power Window Control SW Rear V 9 Vanity Light RH
F 12 Front Door Speaker RH LH

47
Connector Joining Wire Harness and Wire Harness
CODEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
BW1REAR DOOR LH WIRE AND FLOOR NO. 1 WIRE (LEFT CENTER PILLAR)
BX1FUEL GAUGE WIRE AND FLOOR NO. 1 WIRE (UNDER THE REAR SEAT CUSHION)
BY1REAR DOOR RH WIRE AND FLOOR NO. 2 WIRE (RIGHT CENTER PILLAR)
BZ1LUGGAGE ROOM NO. 1 WIRE AND FLOOR NO. 1 WIRE (LUGGAGE COMPARTMENT LEFT)
Ba1FLOOR NO. 1 WIRE AND LUGGAGE ROOM NO. 2 WIRE (LUGGAGE COMPARTMENT DOOR)