ignition coil TOYOTA CAMRY 1994 XV10 / 4.G Wiring Diagrams Workshop Manual

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

17
1. NORMALLY
OPENOpens and
closes circuits,
thereby
stopping (1) or
allowing (2)
current flow.
RESISTOR
An electrical component with a
fixed resistance, placed in a circuit
to reduce voltage to a specific
value.
RESISTOR, TAPPED
A resistor which supplies two or
more different non adjustable
resistance values.
SENSOR (Thermistor)
A resistor which varies its
resistance with temperature.
SHORT PIN
Used to provide an unbroken
connection within a junction block.
SOLENOID
An electromagnetic coil which
forms a magnetic field when
current flows, to move a plunger,
etc.SWITCH, DOUBLE THROW
A switch which continuously
passes current through one set
of contacts or the other.
SWITCH,
IGNITION
A key operated switch with
several positions which allows
various circuits, particularly the
primary ignition circuit, to
become operational.
Wires are always
drawn as straight lines
on wiring diagrams.
Crossed wires (1)
without a black dot at
the junction are not
joined; crossed wires
(2) with a black dot or
octagonal (
) mark at
the junction are spliced
(joined) connections. RELAY, DOUBLE THROW
A relay which passes current
through one set of contacts or the
other.
SENSOR, ANALOG SPEED
Uses magnetic impulses to open
and close a switch to create a
signal for activation of other
components.TRANSISTOR
A solidstate device typically used
as an electronic relay; stops or
passes current depending on the
voltage applied at ªbase.º SWITCH, WIPER PARK
Automatically returns wipers to
the stop position when the wiper
switch is turned off. SWITCH, MANUAL SPEAKER
An electromechanical device
which creates sound waves from
current flow.
2. NORMALLY
CLOSED
RESISTOR, VARIABLE or
RHEOSTAT
A controllable resistor with a
variable rate of resistance.
Also called a potentiometer or
rheostat. 2. NORMALLY
OPEN RELAY
1. NORMALLY
CLOSEDBasically, an electrically
operated switch which may
be normally closed (1) or
open (2).
Current flow through a
small coil creates a
magnetic field which either
opens or closes an
attached switch.
(2) SPLICED WIRES
(1) NOT
CONNECTED

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)

52
POWER SOURCE (Current Flow Chart)
The chart below shows the route by which current flows from the battery to each electrical source (Fusible Link,
Circuit Breaker, Fuse, etc.) and other parts.
The next page and following pages show the parts to which each electrical source outputs current.
Starter Battery
FL MAIN 2.0L30A AM2Ignition SW
(AM2)
Headlight Relay
(Point Side)
40A DEFOG 100A ALTGenerator
(Alternator) 7.5A SRS
Taillight Relay
(Coil Side) 40A MAIN
(Canada) 7.5A OBD
7.5A ALT±S
10A HAZ
10A HORN
15A ECU±B
15A EFI
20A DOMEHeadlight Relay
(Coil Side)
60A ABS 15A STOP
40A HEATER
Taillight Relay
(Point Side)
Engine Main
Relay (Point Side)
15A TEL
Daytime Running
Light Relay No. 2
(Coil Side)
Daytime Running
Light Relay No. 2
(Point Side)Starter Relay
(Point Side)
(5S±FE)
30A POWER
40A AM1
Daytime Running
Light Relay (Main)
15A HEAD (UPR±LH)
15A HEAD (UPR±RH)
[LOCATION](1): J/B No. 1 (See page 20)(2): J/B No. 2 (See page 19)
(3): R/B No. 1 (See page 20)(7): R/B No. 7 (See page 19) 2022
25
27

53
Integration Relay 7.5A IGN
Daytime Running
Light Relay (Main)
Ignition SW
(AM1)(USA)
Starter Relay
(Coil Side) 10A MIR HTRABS Actuator
Light Control SW
[Comb. SW]15A HEAD (LH)
10A A/CABS ECU ABS Actuator
and ECU(TMM Made)
ABS Relay
Integration
Relay
Defogger Relay
(Point Side)
Heater Relay
(Point Side)
15A TAIL
Power Main Relay
(Point Side)Clutch Start
SW Light Control SW
[Comb. SW]
* 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.
(Canada)
Dimmer SW
[Comb. SW]
30A RDI FAN
30A CDS FAN15A HEAD (RH)
7.5A DRL
15A HEAD (LWR±LH)
15A HEAD (LWR±RH)
(Canada)
10A STARTER
Starter
(M/T)
(A/T)
Park/Neutral
Position SW
(Neutral Start SW)
Engine Control
Module (Engine and
Electronic Controlled
Transmission ECU)
7.5A TURN
10A GAUGE
15A ECU±IG
15A CIG/RADIO
20A WIPER (TMC Made) ABS Relay
(4): R/B No. 4 (See page 20)(5): R/B No. 5 (See page 19)(6)R/B No. 6 (See Page )
2526 26

57
E10 80
98
204 80
90
98
236 184
F376 144
148126
246252
Engine Control Module (Engine
and Electronic Controlled
Transmission ECU)
High Mount Stop Light
Heated Oxygen Sensor (Bank 2
Sensor 1) (1MZ±FE)
Idle Air Control Valve (ISC Valve)
Igniter
Ignition Coil
Injector No. 1
F4 F5 F6 F7 F8 F9 F15 G2 G3 G4 H1 H2 H3 H4 H5 H6 H7 H8 H9 H10 H11 H12 I1 I2 I3 I4 90
198144
148144
148144
14811 4
11 811 4
11 8126 126 104 106 104 106 104 106 104 106 173 17311 4
11 8
12680120
12480 8080
90
9868
8072
98
23672 80
Heated Oxygen Sensor (Bank 1
Sensor 1) (1MZ±FE) Heated Oxygen Sensor (Bank 1
Sensor 2) Air Vent Mode Control SW (for
Lever Control SW Type) Heater Control SW (for Push
Control SW Type) Hazard SW Horn RH
Horn LH Front Clearance Light LH
Front Clearance Light RH
Front Side Marker LH
Front Side Marker RH
Front turn Signal Light LH
Front turn Signal Light RH
Front Wiper Motor
Fuel Pump and Sender
Generator (Alternator)
Glove Box Light
Glove Box Light SW
Headlight Hi LH (USA)
Headlight Hi LH (CANADA)
Headlight Hi RH (USA)
Headlight Hi RH (CANADA)
Headlight Lo LH (USA)
Headlight Lo LH (CANADA)
Headlight Lo RH (USA)
Headlight Lo RH (CANADA)
(4): R/B No. 4 (See page 20)(5): R/B No. 5 (See page 19)(6)R/B No. 6 (See Page )
2526 26

58
POWER SOURCE (Current Flow Chart)
*Page Nos. of
Related Systems
Parts
Code or
Location
CB or Fuse
Location
* 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.


I5 I6 I7 I8 I9 I11 I12
I13I14 I16 I17 I18
I19 8068
72
80 130
134
138
140106
120
130
144
76
11 4
130
170
214
246
177
Injector No. 2
Injector No. 3
Injector No. 4
Injector No. 5 (1MZ±FE)
Injector No. 6 (1MZ±FE)
Injector Key Cylinder Light
Ignition SW and Unlock Warning
SW
Integration Relay
Interior Light
Ignition Coil No. 1 (1MZ±FE)
Ignition Coil No. 2 (1MZ±FE)
Ignition Coil No. 3 (1MZ±FE)
Ignition Coil No. 4 (1MZ±FE)
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
Ignition Coil No. 5 (1MZ±FE)
Ignition Coil No. 6 (1MZ±FE)
Junction Connector
Junction Connector
Junction Connector
Junction Connector (for Airbag
System)
I20 I21 J1 J2 J3 J4 80 80 80 8011 2
126
140
17068
8068
8068
8068
8068
8068
80
90
11 8
134
192
224
252 98
120
138
210 80
154
182
190
204126
156
189
198
236130
156
182
214
226
234134
160
198
222
228
236154
168
204
224
230130
134
138
140130
134
138
140
[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

69
IP1 16
W±R B±O
B±O
B±O
TO NOISE FILTER
(
FOR IGNITION SYSTEM)
E14 E12 E14 E13 E13 E13
2 1
2 1
2 1
2 1
2 1
2 1
A 1A2A3A4A5A6A7
B 8B6B5B4B3B2B1B7A8
A A
ED EC IGF IGT1 IGT2
12 24 16 15 26 30 29
IGF IGT1 IGT2 IGT4IGT3 IGT5 IGT6 +B COIL1 COIL2 COIL3 COIL4 COIL5 COIL6
IGT3 IGT4 IGT5 IGT6 TACHGND
L
GR
W
G
LG ±B
PB±O
B±O
B±O
B±O
B±O
B±O W±R
W±G
Y±R
GR±B
L±B
R±B
G±R
B BR BRW± B
B±O B±O B±O B± OB±O
B±O
19
3IG±
E1
E7D1
J7 ENGINE CONTROL MODULE(
ENGINE AND
ELECTRONIC CONTROLLED TRANSMISSION ECU)
JUNCTION
CONNECTORDATA LINK
CONNECTOR 1
(
CHECK
CONNECTOR)
IGNITON COIL NO. 1
IGNITON COIL NO. 2
IGNITON COIL NO. 3
IGNITON COIL NO. 4
IGNITON COIL NO. 5
IGNITON COIL NO. 6
B I2 ,I15A
IGNITER
I16
I17
I18
I19
I20
I21
1E 51G 8

73
*
2 : EX. CALIFORNIA * 1 : CALIFORNIA
* 3 : ONE BODY ASSEMBLY EX. CALIFORNIA
A 1A2A4A3
B 1B4B3
B 4B5B18 B13 B3B22 A 4A18 A17 A3A20
ECIP1 16
E20
E1 9
IP1 8
W±R W±R W±R
B±R
W±R B B
BW W±R L L B
Y R BR
W±R W±R
B
DATA LINK
CONNECTOR 1
(
CHECK CONNECTOR) D1 IGNITER I2 IGNITION COIL I3 TO NOISE FILER
(
FOR IGNITION SYSTEM)
TO TACHOMETER
[COMB. METER] B±O
NE+ G+ G± NE± IGF IGT IG±+B C±
IG± NE G1 G± G2 NE± IGF IGT12 4 53
19 B 2 (
*1)
(
*
2)
(
*2, M/T) (
*1, A/T)
A 5
L
(
*1, A/T)
(
*
2, M/T)
(
SHIELDED)
B E7 ,E11AB D2 ,D2A
ENGINE CONTROL MODULE(
ENGINE AND
ELECTRONIC CONTROLLED TRANSMISSION
ECU)DISTRIBUTOR(
*1)(
*2)
E16W±R
NE G1 G± G2
(
*
2) (
*
1) (
*3)1
2
1A 61G 8