1999 TOYOTA CAMRY light

ENGINE CONTROL (1MZ±FE)
10A
MIRROR±
HEATER FROM POWER SOURCE S YSTEM (
SEE PAGE 50)
1J 1115A
STOP
1C 7 10A
TAI L
1C 9
2 1
2 1
2 1
D 19 D 10 E 25 E 13 E 12 E 111R 5
2 4AAA
53A
A
B±Y B±Y B±Y B±Y
B±Y
E2 G VG IGF IGT3 IGT2 IGT1EVP1 EGR ACIS STP ELS2 ELS
LG Y±G R±Y G± W G± WG± WW B±YG± O G±O
B±Y B±Y B±Y R±BP W±R LG±B BR±YGR
B±Y
VSV (
INTAKE AIR CONTROL)
VSV (
EGR)
VSV (
EVAP) V 6
V 5 STOP LIGHT SW S 6
JUNCTION CONNECTOR
J20
MASS AIR
FL OW METE R M 2 1 2
BR C 11KSW
IGB B
A B
J 9
JUNCTION
CONNECTORA
A
JUNCTION
CONNECTOR J11
UNLOCK WARNING SW U 1L±B L±B
W±B W±B BR B(
*1)
B(
*1)
D 22
1 THA
L±Y
J12
JUNCTION
CONNECTORB CA A
JUNCTION CONNECTORB J2 7 J28
A
A
A
D 7 E 18 E 17 A 18 19A 15 A
B , J10
IG38
1D7
1M5
1 2
1J7
1M3
,
1R 4
E 7 BA, E 8
E10
ENGINE CONTROL MODULEE D, E11C , E 9 ,
V 4
D 3D11BR A
13 24
HT OX
W L±B(
*6)
BR B±Y
(
SHIELDED)(
*6)
(
*6)
(
*6)
(
*6)
HTR OXR1+B E1
HEATED OXYGEN SENSOR
(
BANK 1 SENSOR 1) H 3
L±B L±B
TO IGNI TER

E5 ENGINE COOLANT TEMP. SENSOR
1±2 : Approx. 15.04 kW (±20C, ±4F)
Approx. 5.74 kW (0C, 32F)
Approx. 2.45 kW (20C, 68F)
Approx. 1.15 kW (40C, 104F)
Approx. 0.584 kW (60C, 140F)
Approx. 0.318 kW (80C, 176F)
E7 (A), E8 (B), E9 (C), E10 (D), E11 (E)
ENGINE CONTROL MODULE
Voltage at engine control module wiring connector
BATT±E1 : Always 9.0±14.0 volts
+B±E1 :9.0±14.0 volts (Ignition SW at ON position)
VC±E2 : Always 4.5±5.5 volts (Ignition SW at ON position)
VTA1±E2 :0.3±0.8 volts (Ignition SW on and throttle valve fully closed)
:3.2±4.9 volts (Ignition SW on and throttle valve fully open)
VG±E2G :1.1±1.5 volts (Engine idling and A/C SW OFF position)
THA±E2 :0.5±3.4 volts (Engine idling and intake air temp. 20°C, 68°F)
THW±E2 :0.2±1.0 volts (Engine idling and engine coolant temp. 80°C, 176°F)
IGF±E1 :4.5±5.5 volts (Ignition SW at ON position)
Pulse generation (Engine idling)
G22+±NE± : Pulse generation (Engine idling)
NE+±NE± : Pulse generation (Engine idling)
NSW±E1 :9.0±14.0 volts (Ignition SW on and other shift position in P or N position)
Below 3.0 volts (Ignition SW on and shift position in P or N position)
SPD±E1 : Pulse generation (Ignition SW on and rotate driving wheel slowly)
TC±E1 :9.0±14.0 volts (Ignition SW at ON Position)
W±E1 : Below 3.0 volts
A/C±E1 : Below 2.0 volts (Engine idling and A/C SW on)
9.0±14.0 volts (A/C SW off)
ACT±E1 :9.0±14.0 volts (Engine idling and A/C SW on)
Below 2.0 volts (A/C SW off)
ACIS±E01 :9.0±14.0 volts (Ignition SW at ON position)
STA±E1 :6.0 volts or more (Engine cranking)
THG±E2 :4.5±5.5 volts (Ignition SW at ON position)
ELS±E1 :7.5±14.0 volts (Taillight SW at ON position)
0±1.5 volts (Taillight SW at OFF position)
ELS2±E1 :7.5±14.0 volts (Defogger SW at ON position)
0±1.5 volts (Defogger SW at OFF position)
EGR±E01 :9.0±14.0 volts (Ignition SW at ON position)
FC±E1 :9.0±14.0 volts (Ignition SW at ON position)
0±3.0 volts (Engine idling)
EVP1±E01 :9.0±14.0 volts (Ignition SW at ON position)
CF±E1 :9.0±14.0 volts (Electric cooling fan is operating on high speed)
0±2.0 volts (Electric cooling fan is operating on low speed or off)
TACH±E1 : Pulse generation (Engine idling)
TPC±E1 :9.0±14.0 volts (Ignition SW on and disconnect the vacuum hose from the vapor pressure sensor)
PTNK±E1 :3.0±3.6 volts (Ignition SW at ON position)
1.3±2.1 volts (Ignition SW on and apply vacuum 2.0 kpa (15.0 mmHg, 0.6 in.Hg)
STP±E1 :7.5±14.0 volts (Ignition SW on and brake pedal depressed)
Below 1.5 volts (Ignition SW on and brake pedal released)
SIL±E1 : Pulse generation (During transmission)
RSC, RSO±E01 :9.0±14.0 volts (Ignition SW on and disconnect E 7 of engine control module connector)
KNKL, KNKR±E1 : Pulse generation (Engine idling)
HTS, HTL, HTR±E03 :9.0±14.0 volts (Ignition SW at ON position)
0±3.0 volts (Engine idling)
OXS, OXL, OXR±E1 : Pulse generation (Maintain engine speed at 2500 rpm for two minutes after warning up)
IGT1, IGT2, IGT3±E1 : Pulse generation (Engine idling)
#10, #20, #30, #40, #50, #60±E01 :9.0±14.0 volts (Ignition SW at ON position)
Pulse generation (Engine idling)
SERVICE HINTS

IGIH II3 6II2 2
IJ1 7IJ12 IG3 10C 2B15 C6C5 A A
B B
B CA A B A A CC 7B14 7. 5A
OBD FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
1J 1015A
ST OP
1C 710A
GAUGE FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
1D 2
MALFUNCTION
INDICATOR LAMP
SPEEDOMETER
1J 1
IG33
1J 71R51R 4 1J 81 2
54
AD
12 3 A 16 7
ABD
B
CG SG W G±R V±W
BR
G± WV±W R±L
BAT SIL
BR
W±B W±BBR
G± W BR
W±B
G±WWB
R±L R±L
V±W R±L R±L
G±R
L
P
BR PL G±RR±L
R±L
G±R
R±L
BR
COMBINATION METERC C 9 C10B
JUNCTION
CONNECTORJUNCTION
CONNECTOR JUNCTION
CONNECTOR
STOP LIGHT SWDATA LINK
CONNECTOR 3
J15J 4
J21
S 6D 5
JUNCTION
CONNECTORB J 7 J 8AJUNCTION CONNECTORB J 7 J 8A
JUNCTION
CONNECTORB J27 J28A
JUNCTION
CONNECTOR
VEHICLE SPEED SENSOR
(
COMBINATION METER) V 2
J11SI SE
IG+
* 6 : EXCEPT CALIFORNIA * 5 : CALIFORNIA (
SHIELDED)
I 3IG3 6C 8
TACHOMETER
B±O B±O
B±O
B±O
BF
BF
A F JUNCTION
CONNECTORJ28 B
,
J27
JUNCTION
CONNECTORA
A F ,
,
A C CC
I 5 JUNCTION CONNECTOR J 3
BR(
SHIELDED)
(
SHIELDED) W
* 1 : W/ ENGINE IMMOBILISER SYSTEM
* 2 : W/O ENGINE IMMOBILISER SYSTEM
,

ENGINE CONTROL (5S±FE)
This system utilizes an engine control module and maintains overall control of the engine, transmission and so on. An outline
of the engine control is explained here.
1. INPUT SIGNALS
(1) Engine coolant temp. signal circuit
The engine coolant temp. sensor detects the engine coolant temp. and has a built±in thermistor with a resistance which
varies according to the engine coolant temp. thus the engine coolant temp. is input in the form of a control signal into
TERMINAL THW of the engine control module.
(2) Intake air temp. signal circuit
The intake air temp. sensor detects the intake air temp., which is input as a control signal into TERMINAL THA of the
engine control module.
(3) Oxygen sensor signal circuit
The oxygen density in the exhaust gases is detected and input as a control signal into TERMINAL OX1 (except
California) and OX2 of the engine control module.
(4) RPM signal circuit
Camshaft position and crankshaft position are detected by the camshaft position sensor and crankshaft position sensor.
Camshaft position is input as a control signal to TERMINAL G+ of the engine control module, and engine RPM is input
into TERMINAL NE+.
(5) Throttle signal circuit
The throttle position sensor detects the throttle valve opening angle, which is input as a control signal into TERMINAL
VTA of the engine control module.
(6) Vehicle speed signal circuit
The vehicle speed sensor, installed inside the transmission, detects the vehicle speed and inputs a control signal into
TERMINAL SPD of the engine control module.
(7) Park/Neutral position SW signal circuit (A/T)
The Park/Neutral position SW detects whether the shift position are in neutral, parking or not, and inputs a control signal
into TERMINAL STA of the engine control module.
(8) A/C SW signal circuit
The A/C amplifier function is built in the engine control module. The A/C SW signal inputs into the TERMINAL A/C SW of
the engine control module.
(9) Battery signal circuit
Voltage is constantly applied to TERMINAL BATT of the engine control module. When the ignition SW is turned on, the
voltage for engine control module start±up power supply is applied to TERMINAL +B of engine control module via EFI
relay.
(10) Intake air volume signal circuit
Intake air volume is detected by the manifold absolute pressure sensor (for manifold pressure) and is input as a control
signal into TERMINAL PIN of the engine control module.
(11) Starter signal circuit
To confirm whether the engine is cranking, the voltage applied to the starter motor during cranking is detected and the
signal is input into TERMINAL NSW of the engine control module as a control signal.
(12) Engine knock signal circuit
Engine knocking is detected by knock sensor 1 and the signal is input into TERMINAL KNK as a control signal.
(13) Electrical load signal circuit
The signal when systems such as the rear window defogger, headlights, etc. Which cause a high electrical burden are
on is input to TERMINAL ELS as a control signal.
(14) Air fuel ratio signal circuit (California)
The air fuel ratio is detected and input as a control signal into TERMINAL AF+ of the engine control module.
SYSTEM OUTLINE

HEADLIGHT (w/o DAYTIME RUNNING LIGHT)
15A
HEAD
(
LH)15A
HEAD
(
RH)
3
4
16 OFF
TAIL
HEAD
LOW
HIGH
FLASH
LIGHT
CONTROL
SW DIMMER SW
2K 82G32G4
R±B
HEAD
RELAY
IGIF R±B
R
W±BW±B
R±B
R±BB
INTEGRA TION RELAY BATTERY
FL MA IN
3. 0W
I17
32 41
40A
MAIN
2B 31 2
2G 62C8
213
123
B FBFBDBD
A F A F A D
A 1C 1
1J 7 1J89 8IG1 3
A B
AA B
A
AB
COMBINATION SW C13
HIGH B EA M INDICATOR LIGHT
[COMB. METER] C 9
JUNCTION
CONNECTOR J11JUNCTION
CONNECTOR J 5 JUNCTION
CONNECTOR J32HEADLIGHT
LH H 1
HEADLIGHT
RH H 2
R±Y
JUNCTION
CONNE CTOR J 7W±B
W±B
W±B R±L R±LR±B
R±L
R±BR±L
R±W B±G
R±B
R±L
F 4
FUSIBLE LINK BLOCKC A, F 6
J3 5
JUNCTION
CONNECTORB A, J36
8717 13

HEAD RELAY [ENGINE ROOM J/B NO.2]
2±1 : Closed with the light control SW at HEAD position or the dimmer SW at FLASH position
C13 COMBINATION SW
13±16 : Continuity with the light control SW at HEAD position
8±16 : Continuity with the dimmer SW at FLASH position
7±16 : Continuity with the dimmer SW at HIGH or FLASH position
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
C930H126 (1MZ±FE)J731
C1330H128 (5S±FE)J1131
F4A26 (1MZ±FE)H226 (1MZ±FE)J3231F4A28 (5S±FE)H228 (5S±FE)J35A31
F6C26 (1MZ±FE)I1730J36B31F6C28 (5S±FE)J531
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1J20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
2B
2C22Engine Room Main Wire and Engine Room J/B No.2 (Engine Compartment Left)
2G
gg(g)
2K22Cowl Wire and Engine Room J/B No.2 (Engine Compartment Left)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IG140Instrument Panel Wire and Cowl Wire (Lower Finish Panel)
: GROUND POINTS
CodeSee PageGround Points Location
IF40Left Kick Panel
IG40Instrument Panel Brace LH
SERVICE HINTS

HEADLIGHT (w/o DAYTIME RUNNING LIGHT)



9







8






X78
XXXX13
X
16 17 XX

111
231
23


34
AAA AA
AAAA AAAAAAAAAA







AA
AAAA

B




BB B









DD

FF






DD

FF



9 8











C9
C13 F4 (A) F6 (C)
BLACK BLACK
I17ORANGE GRAYJ11GRAY
J35 (A) J36 (B)
(Hint : See Page 7) (Hint : See Page 7)(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)
H1 H2
J5 J7 J32
(TMMK Made) (TMC Made)C9

HEADLIGHT (w/ DAYTIME RUNNING LIGHT)
32 41
42 31 1 40A
MAIN
5A
DRL
NO. 215A
HEAD LH
(
UPR)15A
HEAD RH
(
UPR)
EB 3 21
3 21
EB17 2B 32K82G3
2222G 52G2
22 2222G 4
22 32 1
4
C 1
A 1EB1 8
2 2
1 1 2
R R±GR R±B
R
W±RR±LR±L
R±B
R±B
R±B
R±W
W± B
R
R±Y W±R R
R±B R B B±G
W±BR±BR
R±Y
R±Y
HEADLIGHT
LH DIM
RELAY HEAD
RELAY
HEADLIGHT
RH
DAYTIME RUNNING
LIGHT RESISTOR
H 1 H 2
D 2 BATTERY
FL MA IN
3. 0WDRL
NO. 4
RE LAY
FUSIBLE LINK BLOCKC F 4 A , F 6
R F 2 F 1
100A
ALT E 3 51 32
1B 41C 6G± R
B±R B±R
B±R G±R
TAILLIGHT
RELAY
F , F 9