1999 TOYOTA CAMRY light

To Ignition SW
IG Terminal
Test Light
Relay Light
SW 2 SolenoidDisconnectShort [A]
Disconnect
DisconnectSW 1Fuse Case
Short [B]
Short [C]
Pull Up
Press Down Press DownPull Up
C
FINDING A SHORT CIRCUIT
(a)Remove the blown fuse and disconnect all loads of the fuse.
(b)Connect a test light in place of the fuse.
(c)Establish conditions in which the test light comes on.
Example:
[A] ± Ignition SW on
[B] ± Ignition SW and SW 1 on
[C] ± Ignition SW, SW 1 and Relay on (Connect the
Relay) and SW 2 off (or Disconnect SW 2)
(d)Disconnect and reconnect the connectors while watching the
test light.
The short lies between the connector where the test light
stays lit and the connector where the light goes out.
(e)Find the exact location of the short by lightly shaking the
problem wire along the body.
CAUTION:
(a) Do not open the cover or the case of the ECU unless
absolutely necessary. (If the IC terminals are touched,
the IC may be destroyed by static electricity.)
(b) When replacing the internal mechanism (ECU part) of
the digital meter, be careful that no part of your body or
clothing comes in contact with the terminals of leads
from the IC, etc. of the replacement part (spare part).
DISCONNECTION OF MALE AND FEMALE
CONNECTORS
To pull apart the connectors, pull on the connector itself, not
the wire harness.
HINT : C h e c k t o s e e w h a t k i n d o f connector you are
disconnecting before pulling apart.

E GLOSSARY OF TERMS AND SYMBOLS
BATTERY
Stores chemical energy and
converts it into electrical energy.
Provides DC current for the auto's
various electrical circuits.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.
CAPACITOR (Condenser)
A small holding unit for temporary
storage of electrical voltage.HEADLIGHTS
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
1. SINGLE
FILAMENT
CIGARETTE LIGHTER
An electric resistance heating
element.2. DOUBLE
FILAMENT
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.HORN
An electric device which sounds a
loud audible signal.
DIODE
A semiconductor which allows
current flow in only one direction.IGNITION COIL
Converts low±voltage DC current
into high±voltage ignition current for
firing the spark plugs.
DIODE, ZENERA 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.LIGHT
Current flow through a filament
causes the filament to heat up and
emit light.
PHOTODIODE
The photodiode is a semiconductor
which controls the current flow
according to the amount of light.LED (LIGHT EMITTING DIODE)
Upon current flow, these diodes emit
light without producing the heat of a
comparable light.
DISTRIBUTOR, IIA
Channels high±voltage current from
the ignition coil to the individual
spark plugs.METER, ANALOG
Current flow activates a magnetic
coil which causes a needle to move,
thereby providing a relative display
against a background calibration.
FUSEA 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
METER, DIGITAL
Current flow activates one or many
LED's, LCD's, or fluorescent
displays, which provide a relative or
digital display.
FUEL
FUSIBLE LINK
A heavy±gauge wire placed in high
amperage circuits which burns through on
overloads, thereby protecting the circuit.
The numbers indicate the crosssection
surface area of the wires.(for Medium Current Fuse)
(for High Current Fuse or
Fusible Link)MOTOR
A power unit which converts
electrical energy into mechanical
energy, especially rotary motion.
M

G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
A 1 A/C Condenser Fan Motor
A 2 A/C Magnetic Clutch and Lock Sensor
A 3 A/C Triple Pressure SW
(A/C Dual and Single Pressure SW)
A 4 ABS Actuator
A 5 ABS Actuator
A 6 ABS Speed Sensor Front LH
A 7 ABS Speed Sensor Front RH
A 8 Air Fuel Ratio Sensor
A 9 Airbag Sensor Front LH
A 10 Airbag Sensor Front RH
B 1 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor
C 2 Crankshaft Position Sensor
C 3 Cruise Control Actuator
D 1 Data Link Connector 1
E 1 Electronically Controlled Transmission Solenoid
E 2 Electronically Controlled Transmission Solenoid
E 3 Engine Coolant Temp. SensorF 1 Front Turn Signal Light and Parking Light LH
F 2 Front Turn Signal Light and Parking Light RH
F 3 Front Wiper Motor
F 4 Fuel Pressure Sensor (Delivery Pipe)
F 5 Fuel Pressure Sensor (Fuel Pipe)
F 6 Fuel Shutoff Valve (Delivery Pipe)
F 7 Fuel Shutoff Valve (Fuel Pressure Regulator)
F 8 Fuel Temp. Sensor (Delivery Pipe)
F 9 Fusible Link Block
F 10 Fusible Link Block
F 11 Fusible Link Block
F 12 Fusible Link Block
F 13 Fusible Link Block
F 14 Fusible Link Block
G 1 Generator
G 2 Generator
H 1 Headlight LH
H 2 Headlight RH
H 3 Horn (High)
H 4 Horn (Low)

G
Position of Parts in Engine Compartment
I 1 Idle Air Control Valve
I 2 Ignition Coil and Igniter No.1
I 3 Ignition Coil and Igniter No.2
I 4 Injector No.1
I 5 Injector No.2
I 6 Injector No.3
I 7 Injector No.4
I 8 Intake Air Temp. Sensor
M 1 Manifold Absolute Pressure Sensor
N 1 Noise Filter (Ignition)
O 1 Oil Pressure SW
P 1 Park/Neutral Position SW,A/T Indicator Light SW and
Back±Up Light SW
P 2 Power Steering Oil Pressure SWR 1 Radiator Fan Motor
S 1 Starter
S 2 Starter
T 1 Throttle Position Sensor
V 1 Vehicle Speed Sensor (Combination Meter)
V 2 VSV (EGR)
W 1 Washer Level Warning SW
W 2 Washer Motor
W 3 Water Temp. Sender
W 4 Water Temp. SW No.1

G ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
A 11 A/C Evaporator Temp. Sensor
A 12 A/C SW
A 13 ABS ECU
A 14 ABS ECU
A 15 Air Vent Mode Control Servo Motor
A 16 Airbag Squib (Front Passenger Airbag Assembly)
A 17 Airbag Squib (Steering Wheel Pad)
A 18 Ashtray Illumination
B 2 Blower Motor
B 3 Blower Resistor
B 4 Blower SW
C 4 Center Airbag Sensor Assembly
C 5 Center Airbag Sensor Assembly
C 6 Center Airbag Sensor Assembly
C 7 Cigarette Lighter
C 8 Cigarette Lighter Illumination
C 9 Clock
C 10 Combination Meter
C 11 Combination Meter
C 12 Combination Meter
C 13 Combination SW
C 14 Combination SW
C 15 Combination SW
C 16 Cruise Control ECUD 2 Data Link Connector 2
D 3 Data Link Connector 3
D 4 Diode (Courtesy)
D 5 Diode (Dome)
D 6 Diode (Idle±Up)
E 4 Engine Control Module
E 5 Engine Control Module
E 6 Engine Control Module
E 7 Engine Control Module
G 3 Glove Box Light and SW
H 5 Hazard SW
H 6 Heated Oxygen Sensor
H 7 Heater Control SW
I 9 Ignition Key Cylinder Light
I 10 Ignition SW
I 11 Integration Relay
I 12 Integration Relay

G
Position of Parts in Instrument Panel
J 1 Junction Connector
J 2 Junction Connector
J 3 Junction Connector
J 4 Junction Connector
J 5 Junction Connector
J 6 Junction Connector
J 7 Junction Connector
J 8 Junction Connector
J 9 Junction Connector
J 10 Junction Connector
J 11 Junction Connector
J 12 Junction Connector
J 13 Junction Connector
J 14 Junction Connector
J 15 Junction Connector
J 16 Junction Connector
J 17 Junction Connector
J 18 Junction Connector
J 19 Junction Connector
J 20 Junction Connector
J 21 Junction Connector
J 22 Junction Connector
J 23 Junction Connector
J 24 Junction Connector
J 25 Junction Connector
J 26 Junction ConnectorJ 27 Junction Connector
J 28 Junction Connector
J 29 Junction Connector
J 30 Junction Connector
J 31 Junction Connector
J 32 Junction Connector
K 1 Key Interlock Solenoid
O 2 O/D Main SW and A/T Shift Lever Illumination
P 3 Parking Brake SW
P 4 Power Outlet
R 2 Radio and Player
R 3 Radio and Player
R 4 Rear Window Defogger SW
R 5 Remote Control Mirror SW
R 6 Rheostat
S 3 Shift Lock ECU
S 4 Stop Light SW
T 2 Turn Signal Flasher
U 1 Unlock Warning SW

G ELECTRICAL WIRING ROUTING
Position of Parts in Body
A 19 ABS Speed Sensor Rear LH
A 20 ABS Speed Sensor Rear RH
B 5 Buckle SW LH
C 17 Condenser
D 7 Door Courtesy SW Front LH
D 8 Door Courtesy SW Front RH
D 9 Door Courtesy SW Rear LH
D 10 Door Courtesy SW Rear RH
D 11 Door Key Lock and Unlock SW Front LH
D 12 Door Key Lock and Unlock SW Front RH
D 13 Door Lock Control SW RH
D 14 Door Lock Motor and Door Unlock Detection SW
Front LH
D 15 Door Lock Motor and Door Unlock Detection SW
Front RH
D 16 Door Lock Motor and Door Unlock Detection SW
Rear LH
D 17 Door Lock Motor and Door Unlock Detection SW
Rear RHF 15 Front Door Speaker LH
F 16 Front Door Speaker RH
F 17 Fuel Temp. Sensor and Fuel Shutoff Valve (Fuel Tank)
H 8 High Mounted Stop Light
I 13 Interior Light
J 33 Junction Connector
J 34 Junction Connector
J 35 Junction Connector
L 1 License Plate Light LH
L 2 License Plate Light RH
L 3 Light Failure Sensor
L 4 Luggage Compartment Light
L 5 Luggage Compartment Light SW

G
Position of Parts in Body
N 2 Noise Filter (Rear Window Defogger)
P 5 Power Window Control SW Front RH
P 6 Power Window Control SW Rear LH
P 7 Power Window Control SW Rear RH
P 8 Power Window Master SW and
Door Lock Control SW LH
P 9 Power Window Motor Front LH
P 10 Power Window Motor Front RH
P 11 Power Window Motor Rear LH
P 12 Power Window Motor Rear RH
P 13 Pretensioner LH
P 14 Pretensioner RHR 7 Rear Combination Light LH
R 8 Rear Combination Light LH
R 9 Rear Combination Light RH
R 10 Rear Combination Light RH
R 11 Rear Speaker LH
R 12 Rear Speaker RH
R 13 Remote Control Mirror LH
R 14 Remote Control Mirror RH