1999 TOYOTA CAMRY warning light

M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
Under the left
center pillar
(
Cont . next page)
11 CAMRY CNG
A 3
25A
DOORL±WLL
L±W
SHORT
PI N 7. 5A
DOME10
23
1 2A 112 2J
LOCK UNLOCK
1D 1
1B 4
1AIL1 3 IL1 4
1C
UNLOCK
1F
L±W L±W
R±G
F 2
R±GD1 1
DOOR KEY LOCK
AND UNLOCK SW
FRONT LH
AA
32
1 CB
LOCK
JUNCTION
CONNECTOR
1J 7
UNLOCK
IFInstr ument panel
brac e LHID1 4 1A
ID1 3 2A
13 ID1 12 ID1B B
47 2
P 8
DOOR LOCK CONTROL SW LH
[POWER WINDOW MASTER SW]
LGGG
LG
LOCK UNLOCK
5 A 4
13 IL1 D
12 IL1 E E D
D
W± B 35 6
D13
DOOR LOCK
CONTROL SW RH
E
LGGG
LGLOCK
A
B
100A
AL TA I12
A
BATTERYA
AAAA
AA
20 ID1
IDCowl side
panel LH7
1G 3
1V
W± B W± B
W± B
A
W± B 20 IL1
A
6
IIRight kick panelBA1
W± B W± B
J35
JUNCTION
CONNECTOR
J33
JUNCTION
CONNECTOR2
W± B
M
BK 34
1
J 9
JUNCTION
CONNECTOR3ID2
W± B ID2 811ID1 J 5
JUNCTION
CONNECTOR
L±R L±B
L±RD1 4
DOOR LOCK MOTOR AND
DOOR UNLOCK DETE CT I ON
SW FRONT L H
W±B
Y L±Y
W±B
2 B
M 31
4 5BA1L±B J 5
JUNCTION
CONNECTOR
L±R
BA1 7L±R
4BA1L±RL±R L±BL±YD1 6
DOOR LOCK MOTOR AND
DOOR UNLOCK DETE CT I ON
SW REAR L H
A
L±B
L±R
L±R
F
L±R Y
L±B L±R L±Y
L±R
L
L±W
L±B
R±G
L±B IC27
IC26
W±B
W±B
L±Y
G
9A
LG
L±W B±R
W± B
B
B±R
6A
B±RW±B
7A
B±G
11 A 10 A
C
D INTEGRATION RELAY
L A
J 5
JUNCTION
CONNE CTOR
W± B
5
1M 5See Key Reminder and
Seat Belt Warning
Sy stem< 16±2>
6
1S 7 8ASee Light Auto Tur n
Off System< 6±1> < 6±2>
1 2 13 A
L±WW± B
Door Lock Control Power Source
B J31 J32A,
FL MAIN
3. 0W
D1 2
DOOR KEY LOCK
AND UNLOCK SW
FRONT RH
J35
JUNCTION
CONNECTOR
W±B
F
L±B
J27
JUNCTION
CONNECTOR
B
L±R
E
F
G
H
I
J
K
W± B
F 9 F1 1,
FUSI BL E L I NK BLOCKAC F, F14 40A
AM1 1K 2
1B 1
WB±R
1W 11
20A
RA DI O
NO. 111 2K 2ACC
IG1 AM13
B± RI10
IGNI TION SW
L±W
L±Y
L±RL±R
L±YA
B
1 2
R

1
234
14 CAMRY CNG
28
,
B 10AB
2
12A
Y± BY
P13
PRETENSIONER LHA 1 2ACC
IG1
IG2
ST2 AM13
I10
IGNITION SW6 7AM2
1ACENTER AIRBAG SENSOR ASSEMBLY
,
1B 1
1F 1C1K 2
2A 1
10A ECU±B
2J 7
42L
30A
AM2
B±G
1B 51K 5
SHORT
PI N
100A
ALT1K 3
A17
AIRBAG SQUI B
(
Steering
Wheel Pad)
IF1N 4
1N 11W 3
1G 2
1J 7
Co wl si d e
panel LH ID A1N 3
1V 3 12
SPIRAL
CABLE
12B
B± RB
W± R
W±R
W
W
B±RL±RW± R
B±O LG
FL MAIN
3. 0W
BATTERY
W± B
W± RW±BW± B
Y± BY Y±R Y± G W± B
1 213 12
J 9
JUNCTION
CONNECTORA1 6
AI RBAG SQUIB
(
Fr ont Passenger
Ai r bag As se mb ly)W±R
W± RC11
SRS WARNING LIGHT
[COMB. METER]
B
FUSIBLE LINK BLOCKF F1 4 C F1 1 A F 9
11
Ins trument panel
brace LH 1 2
, C 5 C 4 C, C 6 5B1K 6
1N 2
GR6BA
P±B
LG LG To Data Link
Connec tor 1, 2
< 15±3>
3B 19BAB± Y J 2
JUNCTION
CONNE CT OR
5
12CY± BY
P14
PRETENSI ONER RHC 6 14 B 13 B 27 B
Power Source
SRS
To Data Link Connect or 3
< 2±7>12 B
W
±SL2IE27IG3
W± R
B 26
B± W
BR±W
15 B
B± W
20 B
BR
9B 2 IA1 1 II1 II122 1 2 1
BR±W
W± R
BR
A 9
AI RBAG SENSOR
FRONT L HA10
AI RBAG SENSOR
FRONT RH
2F+S R
B±R B±R
±SR +S LA
LA TC
PL+ PL± PR+ PR± E2 SIL E1 D+ D± P+ P±IG2 ACCLG CONNE CT I ON
DE TE CT I ON
PI NCONNECTION
DETECTION
PIN
15A
CI G 5A
IGN
1IA1
To Engine Cont rol
Module< 2±7>4BLGSW AABB
40A
AM1
To Data Link
Connector 1
< 15±3>

1
234
16 CAMRY CNG
2ACC
IG1 AM1 4
40A
AM1
1F 2F 1C7
1A1K 241B
1B 1
1J 71M31M51S7
IF Inst rument panel
brac e LH2 16 2 1
3 5
2K 10 2F1
1W 110A
HORN
7. 5A DOME
10A GAUGE
11K2A 1
2 1
100A
ALT 2
AC 1
10 5 6C I10
IGNITION SW
H 3
HORN
(
Hi g h)H 4
HORN
(
Low) 1 B±Y
B± R
SHORT PI N
U 1
UNLOCK WARNING SW
BATT ERY
J 9
JUNCTION
CONNE CTORHORN
RE LA Y
B±R W
B± R
B±R B±R
BB±GL±B
W± B
W± BW± B
2J 12
G±W
FL MAIN
3. 0W
G±W
G±B G±B B
Power SourceHorn
41S
2 1
BK AW± B R±Y
1D 2
D
7C
4A
1T 3R±W J 3
JUNCTI ON
CONNECTOR9
8 B
DR±L R±LR
Under the
left c ent er
pillar B±R
11 11D
CB
AA
13 A
L±W25A
DOORL±W
FUSI BLE LI NK BLOCKC A F 9 F11, FF1 4 , JUNCTION
CONNECTORB A J31 J32, SEAT BEL T WARNI NG
LIGHT[COMB. METER]C A C1 0 C1 2,
I12
INTEGRATION
RELAYA
B 5
BUCKLE SW LH
J34
JUNCTION
CONNECTORJ 1
JUNCTI ON
CONNE CT OR
C1 4
HORN S W
[COMB. SW]
See Light Auto
Turn Off System< 6±2>
K ey Reminder and S eat B elt W arning

M
5
678
17 CAMRY CNG (
Cont' d)
B 11
7
C
13
C
6
B
3
B
5
C
2
A
1
A R±L
BR
BR
IH13
IH16
IH12
IH178
C
C6
15
B Y± G
P
LR± L
Y± R
G± W
BR
BR
Y±G
B±O
P
L
4
A4
C2
C 11
C2
B4
B3
A7
B
IF117
IJ23
2 1
EBLeft radiator
s ide s upport A
IFInstrument
panel brace
LH 2 1IE23
IE16
IE1 76
A
11
A
7
A
8
A 10
A
9
A
10
B
12
A
13
B 12
B 10
C9
B8
B5
B 16
B 13
A1
C1
B 14
B 12
C L
TURN LH2
CHARGED
BRAKEN
BULB
CHE CK
RE L AYR
WASHER LEVELP
MAL FUNCT I ON I NDI CA TOR
LAMP
ABS
SEAT BELTDOOR
RE AR LI GHTSO/ D OFF
OIL FUEL
TURN RH
W± B
CRUISE
SRS (
*1) FUEL
TRIP METER
ODOMETER
TACHOMETER
HIGH BEAM
R± W
See Illumination
Sys tem< 7±4>
R±W
W± B R±WW± B
R± W R±W
B±O
P±L P±L P±L J 1
JUNCTION
CONNE CTOR
B
BB
B 1
BRAKE FLUID LEVEL
WARNI NG SWP 3
PARKI NG BRAKE SW
J 9
JUNCTION
CONNECTOR
W 1
WASHER LEVEL
WARNING SW
See Engine Contr ol
Syst em< 2±2>
See Key Reminder and Seat Belt
War ning Sys tem< 16±3>See ABS System< 15±2>See Char ging
System< 1±4> See Taillight
System< 8±3>WA TE R
TEMP.
ILLUMINATIONSee Electr onic ally Contr olled
Tr ans miss ion and A/T
Indicat or Sys tem
<3±3><3±4>
See Turn Signal and
Hazar d War ning Light
System< 5±3>
See Headlight
System< 4±4>
See SRS System
< 14±4> See Interior Light
System< 6±4>
See Electronically Controlled
Transmiss ion and A/T Indicator
System< 3±3>
See Illumination Syst em
< 7±4>
IF13
V± W V±W
V±W V±WB
BTo Cruis e Contr ol
ECU< 13±4>
J15
JUNCTION
CONNECTOR
To Engine Control
Module< 2±10> < 3±3>
IH15
O 1
OI L PRESSURE SW
1
See Cr uise Control
System< 13±2> Y±B Y±B
Left kick
panelIE
J 4
JUNCTION
CONNECTOR
W± B W± B
A A See Charging Sys tem
< 1±4> A* 1 : Speedometer
B
C
D
E
FIF16
1
C ombination M eter
B±O From Engine
Control Module
< 2±10>
C10 C11,
COMBINATION METERABC12, C From Park/Neutral
Pos ition SW< 1±2>GR See Inter ior Light
Syst em< 6±4>
To Engine Control
Module< 2±7>
B

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W±R
7. 5A
GAUGE
1 2
34
4 8 7
2111134
1 2
3 4
1 2
B18
BL FROM POWER SOURCE SYSTEM (SEE PAGE 66)
R±L
R±L G
W±B W±B
W±B
W±BW±B
W±B
Y±GR
L 4
H17
R 6
DELAY
CIRCUIT S 6
B18
3 4
R 7
BV11
G±W G±R
G±R
G±R
G±R
G±W
G±W
(W/G)
(S/D) (S/D)
C 7
(SHIELDED) BV11I 5
L L
STOP LIGHT
15
7
TO ABS ECU
BO
50
15A
STOP
IBIB
REAR LIGHTS
WARNING LIGHT
[COMB. METER] 3C 3C
IE1 14 STOP LIGHT SW
STOP LIGHT RH
[REAR COMB. LIGHT RH]
STOP LIGHT RH
[REAR COMB. LIGHT LH]
HIGH MOUNTED
STOP LIGHT
[A]
[B]
[I]
[D]
[F]
[H]
[E]
[J]
[M]
[N][K]
[L]
[G]
[C]
LIGHT FAILURE SENSOR
B HOW TO USE THIS MANUAL
*The system shown here is an EXAMPLE ONLY. It is different to the actual
circuit shown in the SYSTEM CIRCUITS SECTION.

H17GRAY
12X 4
2 1
X7 8
X11 X

X
3


61

2

13



X 4






X
3


6 C7 L4 R6 R7 S6
[X] [O]
[P]
[Q]
[R]
[S]
[T]
[U]
[V]
[W]
B HOW TO USE THIS MANUAL
Current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW.
When the ignition SW is turned on, current flows from the GAUGE fuse to TERMINAL 8 of the light failure sensor, and also flows
through the rear lights warning light to TERMINAL 4 of the light failure sensor.
STOP LIGHT DISCONNECTION WARNING
When the ignition SW is turned on and the brake pedal is pressed (Stop light SW on), if the stop light circuit is open, the current
flowing from TERMINAL 7 of the light failure sensor to TERMINALS 1, 2 changes, so the light failure sensor detects the
disconnection and the warning circuit of the light failure sensor is activated.
As a result, the current flows from TERMINAL 4 of the light failure sensor to TERMINAL 11 to GROUND and turns the rear lights
warning light on. By pressing the brake pedal, the current flowing to TERMINAL 8 of the light failure sensor keeps the warning
circuit on and holds the warning light on until the ignition SW is turned off.
S6 STOP LIGHT SW
2±1 : Closed with the brake pedal depressed
L4 LIGHT FAILURE SENSOR
1, 2, 7±GROUND : Approx. 12 volts with the stop light SW on
4, 8±GROUND : Approx. 12 volts with the ignition SW at ON position
11±GROUND : Always continuity
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
C734L436R737
H1736R637S635
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
118R/B No.1 (Instrument Panel Left)

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: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
IB20Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
3C22Instrument Panel Wire and J/B No.3 (Instrument Panel Left Side)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IE142Floor Wire and Instrument Panel Wire (Left Kick Panel)
BV150Luggage Room Wire and Floor Wire (Luggage Compartment Left)
: GROUND POINTS
CodeSee PageGround Points Location
BL50Under the Left Quarter Pillar
BO50Back Panel Center
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
I544Cowl WireB1850Luggage Room Wire
SYSTEM OUTLINE
SERVICE HINTS

B HOW TO USE THIS MANUAL
The ground points circuit diagram shows the connections from all major parts to the respective ground points. When
troubleshooting a faulty ground point, checking the system circuits which use a common ground may help you identify
the problem ground quickly. The relationship between ground points (
EA, IB and IC shown below) can also be
checked this way.

I GROUND POINT
FAN MAIN RELAY
FAN MAIN RELAY
A/C FAN RELAY NO.2
A/C FAN RELAY NO.3
RADIATOR FAN MOTOR
RETRACT CONTROL
RELAY
RETRACT MOTOR RH
RETRACT MOTOR LH
FRONT TURN SIGNAL
LIGHT RH
PARKING LIGHT RH
FRONT TURN SIGNAL
LIGHT LH
PARKING LIGHT LH
DOOR LOCK CONTROL
SW RH
DOOR KEY LOCK
SW RH
DOOR LOCK MOTOR
RH
BLOWER RESISTOR
A/C AMPLIFIER
RADIO AND PLAYER
HEATER RELAY
AUTO ANTENNA
MOTOR
BLOWER SW
PARKING BRAKE SW
COMBINATION METER
HORN SW [COMB. SW]
TURN SIGNAL FLASHER
DOOR KEY LOCK SW LH
DOOR LOCK MOTOR LH
FUEL CONTROL SW
WOOFER AMPLIFIER
COMBINATION METER
COMBINATION METER
FUEL SENDER
CIGARETTE LIGHTER
O/D MAIN SW
CLOCK
5
5
5
5
4
4
4
4
4BA15
IB18
EA2 10
3E5
3E
6 3G
13 3F
3 3D
1 3B
7
ID115
IC33
IA12
E 3
A
A AW±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±B W±B W±B W±B
W±B W±B
W±BW±B
W±B
W±B
W±B W±B
W±B
BR
W±B
BR BRW±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±B
W±B
BR W±B
BR BR
BR W±B W±BW±B
W±BW±BBR W±B (4A±GZE)
W±B A A A
I 6
I 6
I 2
I 2
I 2
B 5I 5
I 5
I 5
B 5
B 5
B 5
I 5
I 5
I 3I 3
E 3
E 3
E 3
E 2
E 4
E 5
E 4
E 5
E 6E 4
E 4
B 4
EAI 4
B 4
B 4
I 4I 8
IBIC
3C7
4
JUNCTION
CONNECTOR J 1
4
DOOR LOCK CONTROL
RELAY
ELECTRICAL IDLE-UP
CUT RELAY (M/T)FRONT SIDE MARKER
LIGHT RH
FRONT SIDE MARKER
LIGHT LH
BRAKE FLUID LEVEL
WARNING SW
UNLOCK WARNING
SW WIPER AND WASHER
SW [COMB. SW] LIGHT CONTROL SW
[COMB. SW] HEATER CONTROL
ASSEMBLY
HEATER SERVO
MOTOR AMPLIFIER
DIMMER SW
[COMB. SW]
CRUISE CONTROL
MIRROR SW
REAR WINDOW
DEFOGGER SW
POWER WINDOW
MASTER SW
POWER WINDOW
CONTROL RELAY
DOOR LOCK CONTROL
SW
REMOTE CONTROL
MIRROR SW
* The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.

B
The ºCurrent Flow Chartº section, describes which parts each power source (fuses, fusible links, and circuit breakers)
transmits current to. In the Power Source circuit diagram, the conditions when battery power is supplied to each system
are explained. Since all System Circuit diagrams start from the power source, the power source system must be fully
understood.
Theft Deterrent and Door Lock Control
K POWER SOURCE (Current Flow Chart)
11
1
EA1 1EA2 3
7
EB16
E 6
E 7I 2I 2
I 2
E 7
E 7
E 7
2
1
1
2
2
2
2
2
B
B
W W
B B B B BW±B
B
B
B B±O
B±W
W±B
B±W STARTER RELAY INJECTION RELAY15A HAZ±RADIO7.5A AM250A MAIN 1.25B FL MAIN
BATTERY
WWW
W W W
R W±L
W
W
G±W
G
15A TAIL
20A DEFOG
15A RAD CIGTA I L
RELAY 7.5A DOME 40A DOOR LOCK CB
2 1
1 2
4 8
2 3
3 4
G
W±R
P±L B±Y
B±Y
W±R
AM2 IG2
ACC
IG1AM1W W
W±R
W W
W±B
21
1
1
1
1
2
2
2
2
3
4
3
4 1
2
1
22
1
11
1
IGNITION SW I 8
Battery
30A AM2
2
Starter S 220A RADIO NO.1
10A HORN
15A EFI
7.5A DOMEShort Pin
10A HAZARD
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.
Engine Room R/B (See Page 20)
ABS
ABS and Traction Control
Cruise Control
Electronically Controlled Transmission and A/T Indicator
Multiplex Communication System
Cigarette Lighter and Clock
Key Reminder and Seat Belt Warning STOP
Fuse Page
194
214
11 2
System
DOME 20A
10ACombination Meter
Headlight
Interior Light
2
2
6 100A ALT
EB1
POWER SOURCE
Light Auto Turn Off187
180
166
210
230
122
10A ECU±B
5 60A ABS
2
6 Fusible Link Block2
* The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.