Page 4185 of 4592
M OVERALL ELECTRICAL WIRING DIAGRAM
Page 4186 of 4592
![TOYOTA CAMRY 1999 Service Repair Manual M
[A]: System Title
[B]: Indicates the wiring color.
Wire colors are indicated by an alphabetical code.
B = Black W = White BR = Brown
L = Blue V = Violet SB = Sky Blue
R = Red O = Orange LG = Light G TOYOTA CAMRY 1999 Service Repair Manual M
[A]: System Title
[B]: Indicates the wiring color.
Wire colors are indicated by an alphabetical code.
B = Black W = White BR = Brown
L = Blue V = Violet SB = Sky Blue
R = Red O = Orange LG = Light G](/manual-img/14/57448/w960_57448-4185.png)
M
[A]: System Title
[B]: Indicates the wiring color.
Wire colors are indicated by an alphabetical code.
B = Black W = White BR = Brown
L = Blue V = Violet SB = Sky Blue
R = Red O = Orange LG = Light Green
P = Pink Y = Yellow GR = Gray
G = Green
The first letter indicates the basic wire color and the
second letter indicates the color of the stripe.
Example: L ± Y
L
(Blue)Y
(Yellow)
[C]: The position of the parts is the same as shown in
the wiring diagram and wire routing.
[D]: Indicates the pin number of the connector.
The numbering system is different for female
and male connectors.
Example :
Numbered in order
from upper left to
lower rightNumbered in order
from upper right to
lower left
Female Male
The numbering system for the overall wiring
diagram is the same as above
[E]: Indicates a Relay Block. No shading is used and
only the Relay Block No. is shown to distinguish
it from the J/B.
Example : Indicates Relay Block No.1
[F]: Junction Block (The number in the circle is the
J/B No. and the connector code is shown beside
it). Junction Blocks are shaded to clearly
separate them from other parts.
3C indicates
that it is inside
Junction Block
No.3 Example:
[G]: Indicates related system.
[H]: Indicates the wiring harness and wiring harness
connector. The wiring harness with male
terminal is shown with arrows (
).
Outside numerals are pin numbers.
Female Male ( )
[I]: ( ) is used to indicate different wiring and
connector, etc. when the vehicle model, engine
type, or specification is different.
[J]: Indicates a shielded cable.
[K]: Indicates and located on ground point.
[L]: The same code occuring on the next page
indicates that the wire harness is continuous.
Page 4187 of 4592

SYSTEM INDEX
M OVERALL ELECTRICAL WIRING DIAGRAM
SYSTEMS LOCATION SYSTEMS LOCATION
ABS 15±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning 19±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Back±Up Light 5±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging 1±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette Lighter and Clock 12±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combination Meter 17±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruse Control 13±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Lock Control 11±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronically Controlled Transmission and A/T Indicator 3±2. . . . . . . . . .
Engine Control 2±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight 4±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn 16±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Illumination 7±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Light 6±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Reminder and Seat Belt Warning 16±2. . . . . . . . . . . . . . . . . . . . . . . .
Light Auto Turn Off 6±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Outlet 12±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Source 1~19±1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Window 10±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator Fan and Condenser Fan 18±3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio and Player 11±7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Window Defogger and Mirror Heater 18±2. . . . . . . . . . . . . . . . . . . .
Remote Control Mirror 9±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift Lock 12±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS 14±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting and Ignition 1±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stop Light 8±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillight 8±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Hazard Warning Light 5±2. . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper and Washer 9±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page 4188 of 4592
Page 4189 of 4592

1
234
1 CAMRY CNG ELECTRI CAL WI RI NG DI AGRAM
A 13 2ACC
IG1
IG2
ST2 AM1 4
6
8 7AM2
B
1B 54 1K 5
5A ALT±S
B
30A AM2 40A MAIN
S IGB
A A 2 1
3 5 2L 4
L A 1 2C 3
12A 2B32D52K92J11
1F 2F 1B
1AC 1
40A AM1
1K 2
11B
1B
1
A
IF5A
IGN 1K 41K3
1J 31C8
65
P
N
10 IG2
B±W
GR
B
I nst rument panel
brac e LH B±R1K 1
1J 2
IE2 4
EB1 6 8
4IJ2 1T B±R
R GRC
423 B±Y
324 W
CC W
1 1
B W± R
W± R
W
WB±RB±R
B±RB
B± GB±G B± R W± B B±W
GRY Y
BR
Y±R
W± R
W± R
B
BR B±R B±R
B±R B±R B±R B±Y
WR± L R± LB±G B±W
P 1
PARK/ NEUTRAL
POSITI ON SW I10
IGNI TION SW
ST REL AY
100A
ALTF1 0 , F 9
FUSI BL E L I NK
BL OCK
STARTER
BATTERYA
FL MAIN
3. 0WB
J 6 A
JUNCTION
CONNE CTORB J 7 , I 2
IGNITION
COI L AND
IGNITER
NO. 1J19
JUNCTION CONNECTOR
I 3
IGNITION
COIL AND
IGNITER
NO. 2
G 1 AG 2
GENERATOR
A 1 2
A
ABR
W±R
To Engine Contr ol
Module< 2±11>
BRJ18
JUNCTION
CONNECTOR ,
A
J 9
JUNCTION
CONNE CTOR
To Engine Control
Module< 2±11> 10A GAUGE
To B u lb Ch eck Re l ay
[Comb. Met er] < 17±6>
11 IG2
GR
B B
J22
JUNCTI ON
CONNECTOR
1
B±RC
N 1
NOI SE F I L TER
(
Ignition)
1
3 2 GND IGT IGF IGF IGT GND+B +B
Power Source Starting and Ignition Charging
To Engine Control
Module< 2±10>
B S 1 A , S 2 F1 1 FCF14,
B,
1 2
Y
EC Intake manifold
B±R B±RC B
B±W CHARGE WARNING
LIGHT[COMB. METER]B A C1 0 C1 1,
5A
ST ARTER
BA BA BA GR
12 IG3
Page 4190 of 4592

M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
(
Cont . next page)
2 CAMRY CNG
EFI RELAYCIR OPN RELAY
20A EFI
40A AM1 30A AM2
7. 5A OBD
2 1
3 5
2 1
3 5 1J 10 1K22L 41K 5
82J 2K7
11
1B 41B12A12C10 2J 22F4
11 1B 5
L±B
AM2 6
I10
IGNITION SW4 AM1
ST2IG2
2 IG1 ACC
7 2
11K 31K
5A
IGN
4EB1 5EB1
EB Left radiator
s ide s upport 1F 2F 1C
1A
B±G
BATTERY10A
GA UGE
71WB± Y B± Y
1D 2B± Y
FUSIBLE LINK BLOCK10 IF1
FL MAIN
3. 0WBA
100A
AL T
B±Y
1B±R
BB W±R
2
B±R
BR
IG3 9
BR
A
B±R
B±RB
Y
C
LG
Y
B±Y
LG±B
L±W
B±Y
B±Y B±Y
R± L G± R G± R
2
G± R
3
BB±Y W± B M 1
MANIFOLD ABSOLUTE
PRESSURE SENSORT 1
THROTTLE POSITI ON
SENSOR
B±RL±B L±B
L±B G±R
W± R
W
B
IG2 1
B± R F17
FUEL TEMP. SENSOR AND
FUEL SHUTOFF VALVE (
Fuel Tank)
B± R
1
A1 1
A/ C EVAPORATOR
TEMP. SENSOR
ON ML KJI H G
B±R
Y
LG
B± Y
LG±B
L±R
G±R
G±R
B± Y
B
C12
MALFUNCTION
I NDI CA TOR L AMP
[COMB. METER]
7
2 D D
J 3
JUNCTION
CONNECTOR
JUNCTION
CONNECTOR
B±Y
23 31 1
12
R± LB
PIM VCE2
B± R
Power SourceEngine Control
D
E
F
BR
4IB1 BR
3IG2
BR BR
7IB1
LG±B
EA
W±B
L±R
EA BAL±B
B±YB± Y
, F11 F 9 A C , F14 FB J23 J24A,
2C 5
W± B
B±Y L±B
2IG1
BKUnder the left
center pillar B±RB±R
B±Y
B±R
A
J34
JUNCTION
CONNECTOR
W± B
LG±BBR
B± R BR
2IB1
BR4BR
Page 4191 of 4592

M
5
678
2 CAMRY CNG (
Cont' d)A
B
CB±Y
NL KJI H G
Y±B
B±Y
THW THAB± Y
VC
B 1+B
VTA
B 1112 A
B±Y
BATT
PIM
B 21AB±Y
B±Y
RSD
THCNG1
D 110 CW
LG±B
THR
B 10L±R
EGR
W
A 523 CP±B
G± R
VCNG3
FC
A 14
G± R
PSWB±L
1
Y
LG
B±Y
LG±B
L±R
G± R
B±Y2
13
I 1
I DL E A I R CONT ROL V AL VE
1 2
P 2
POWER ST EERI NG
OI L PRESSURE SW
4DP1 2B± Y
B± YV 2
VSV(
EGR) F 6
FUEL SHUTOFF VALVE
(
Deliv ery Pipe) B± Y
B B
B B BB B
B±Y
J18
JUNCTION
CONNECTOR
Engine Control
(
Cont . next page)
ENGINE CONTROL MODULE B± R
D
E
F
BRE 3
ENGINE COOLANT
TEMP. SENSOR
I 8
I NTAKE AI R TEMP.
SENSORG±B BR1
21
2A
B
MC L±B
BR
A
B
1IG3
W±B
HT2 OX2 SIL
SI L
J UNCTI ON CONNECTOR
A C A ASG
B B B A CG
W± B
71J
BR 81J7
IF5 D 3
DATA LINK
CONNECTOR 3
42IG3
(
Shielded)
3
12 I G2 241
CBBR P±B P±B
BB±Y
A
J 9
JUNCTION
CONNECTORW± B BR
HT
E1 OX
+B
D
E
Instrument
panel
brace LHW WJ 2
JUNCTION
CONNECTOR
(
Shielded)
(
Shielded)
16BAT
BR
BR CC
BR
21 C B 5 16 A
H 6
HEATED OXYGEN SENSOR
B J 6 J 7A,
, E 5 E 4 A B , E 6 C , E 7 D
WFr om Center
Airbag Sensor
Assembly< 14±4>
3B 4B 22A
B±R
6IG1
9D
F 7
FUEL SHUTOFF VALVE
(
Fuel Pressure Regulator)
Y±G L±B L±B
2 1
9B
BR
6D 7D 5D
OB
F 4
FUEL PRESSURE SENSOR
(
Deliver y Pipe) F 5
FUEL PRESSURE SENSOR
(
Fuel Pipe) F 8
FUEL TEMP. SENSOR
(
Deliver y Pipe)
1
2P±B BR
12 B
BR
BRC W± B 4IH1 5IG1 8IG1
2D 8D 12D9IF1
A A
LL
Y±R
G±W Y± R
G±W Y±RL
Fr om Combination
Meter< 17±6>Fr om Center Airbag
Sens or Ass embly
< 14±4>
3D
13
B± Y G± O
B± R
9IG1
Fr om º TAI Lº Fuse
<8±2>
Fr om º MI RROR±HEATERº
Fuse< 18±1>
2
B±R
D 6
DI ODE
(
Idle±Up) 2 1 2 1
3 3
G±B
G± R
G± R
BR
G±BY
Y
J 8
JUNCTION
CONNE CTOR
Y LG
Y
G± RPCNG1 P CNG2 THCNG2 E2 VCNG2 +B 1 FUE L F UE LW F/ PS
EL S GND VOUT GND VOUT
VC VCBR BR BR BR
BR BR
Page 4192 of 4592

M OVERALL ELECTRICAL WIRING DIAGRAM
9
101112
2 CAMRY CNG (
Cont' d)
ECIntake
manif oldB±YBR BR W± B
BR BR BR
STP 4A
LOCK IN 18 C
PRS 10 D
B±OW± L
MG C 21 AL±Y
A/CS 10 AR±B
LOCK 15 AR± W
NSW 6AB±W
STA 11 AGR
IGT1 20 CB
IGF 3CW±R
IGT2 19 CY±RBR
10 IG3
W± L Fr om Ignit ion Coil
and Igniter
No. 1, No. 2< 1±3>
BRTE1 15 B
NE
1 2
C 2
CRANKSHAFT
POSITION SENSOR
1 2C 1
CA MSHAF T
POSITION SENSORNE ± GE03 E0 2 E01 SPD
E04
Intake
ma n i f o l dECL
B±RBRL B±W
(
Shielded) (
Shielded)BRBR
BR A
AA
A
A J20
JUNCTION
CONNE CTOR
BR BR BR BR
TE1 E1+BL±W
To Tac hometer
[Comb. Met er]
< 17±5>To A/ C Magnetic
Clutch and Loc k
Sens or< 19±4> Fr om A/C Dual
Pressure SW< 19±4>Fr om MG CL T
Relay< 19±2>Fro m A/C SW
< 19±4> Fro m A/C SW
< 19±4> From º STARTERº
Fuse< 1±2>Fr om Park/ Neutral
Posit ion SW< 1±2>12
8 D 1
DA TA LI NK
CONNECTOR 1
3
E1
BR
ENGI NE CONT ROL MODULE
IG3 6
E ngine Control
BR
BR
BR
G L
A 8
AI R FUEL
RA TI O SE NS ORHTA F 2A
AF± 14 B
AF+ 6B 14 23
B±W (
Shielded)
HT AF±+B AF+ A
B
D
EB B±Y
C 16 A 13 C 5 C 17 C 4
BRA16 B 22 C 13 C
JUNCTION
CONNECTORJ23
TACH
A
, E 5 E 4 A B , E 6 C , E 7 D
BRBR CW± B1IG1G G
7IG1
G
9A 8A FA
FA
B±O From Stop Light SW
< 8±4>
V±W Fr om Speedomet er
[Comb. Meter]
< 17±8>G±W
2 1 12 C 2C
I 4
INJECTOR NO. 1
L B±W
(
Shielded)
2 1 11 C 1C
I 5
INJECTOR NO. 2
BR B±R
(
Shielded)
2 1 25 C 15 C
I 6
INJECTOR NO. 3
GR
(
Shielded)
2 1 24 C 14 C
I 7
INJECTOR NO. 4
WO
(
Shielded)
4IG1
IHCowl side
panel RH A AAA
A
W± B W± B
J21
J UNCTI ON CONNECTOR3IG1
BR
26 C
A A
J18
JUNCT I ON
CONNECTOR
BRBR BR
W±B BR
BREO5 #40 #40+ #30 #30+ # 10+ # 10 # 20+ # 20