2000 TOYOTA CAMRY engine

ENGINE CONTROL (5S±FE)
11
11 23 15
CIR OPN
RELAY 5A
IGN
30A
AM2 1K 5
2L 41K 31W7
1C 8 1B 5
2A 1
BL ID1 7EB1 4 EB1 5 II3 12
1 2
1 2
1 2
1 2 C 1
A 176
8 AM2 IG2
ST2
B B B B
5 4 B
G± R
B±W(
*1)
B±R(
*1)
W
Y B±R B±RR
B±R
R
L±B L±B L±B W±B W±BG± RB±R B±R B±RW± R W±R B B±G
B±R B±R B±R B±R
WY RL
IGNITION SW
JUNCTION
CONNE CTOR
FUEL
PUMP
INJE CTOR NO. 1
INJE CTOR NO. 2
INJE CTOR NO. 3
INJE CTOR NO. 4
I16
J21
F1 4
I 8
I 9
I10
I11
BATTERY FL MA IN
3. 0W
JUNCTION
CONNECTOR J40 A
G± R
B±RR
L
B±R
B±W
(
*1)
II4 6
B±W
(
*1)B±W
(
*1)
B±R
(
*1)(
*2)
(
*2)
F 4
FUSIBLE
LINK BLOCKC A, F 6IK1 7I 1
I 3B±R
B±R
B±R B±R B±R
(
*2)
(
*2)
(
*1)
(
*1)
M

23 15P
N5
6
I 2 15A
EFI FROM POWER SOURCE
SYSTEM (
SEE PAGE 50)
EBEC
5A STARTER
1K 4
2K 7
2F 42C10
B EBB
A 14 D7A1C9C10 C17 C 23 C22 A 12A B
A 1A22 A11 1J 3
4 1 4 1
A2 3 3 2 B
B±Y Y W B±R(
*1) B±W(
*1) G±RB± RR
B±Y
B±W
B±O B±W
B± Y
B±Y
Y± R W±R W±RBB± Y B±Y
B±WB± Y
B±YB±R
W±B W±B
B±W
B±W
GR
B±O B±O GR(
*3)
GR BR B±RBRG±R
B±W
B± R
W
Y
W±R
B
FC #40 #30 #20 #10 IGT1 IGF IGT2+B BATT NSW STA(
*4 M/T)
(
*4 A/T) (
*4)
(
A/ T)
(
A/ T)
(
M/T)PARK/NEUTRA
LPOSITION SW
JUNCTION
CO NNE CTOR EFI
RE LA Y
J29P 1
* 1 : W/ ENGINE IMMOBILISER SYSTEM
* 2 : W/O ENGINE IMMOBILISER SYSTEM* 3 : TMC MADE
* 4 : TMMK MADEJUNCTION
CONNECTOR
IGNITION COIL AND
IGNITER NO. 1
IGNITION COIL AND
IGNITER NO. 2
J19
I 3
I 4
A A
BRB±R
2 1
CLUTCH START SW C 7II2 10 II2 11
E 3B±Y
BB
B JUNCTION
CO NNE CTOR J25
B± RIGTIGF IGFIGT
+B GND GND+B
II3 13
B±R B± RC 12 C 11 MREL IGSW
R
LA 14 C24 C25 C11 C12 C3 C 20 C19(
*1)
(
*2)
R (
*1)
L (
*1)
B±Y
II3 9
(
A/ T) (
*3 A/T)
A EAEABB B±W(
*2)
(
*1)
2J8
2J2
A 11 B± Y
A 12 A2A22(
*1)
(
*2)(
*1)
(
*2)
J27
JUNCTION CONNECTORB A, J28
E 7
ENGINE CONTROL MODULEB A, E 8 C, E 9 D, E10 2C 5W±B W±B
A BB CBC GR(
*3 M/T)J 7
JUNCTION
CONNECTORB A, J 8 B±W B±W
B±W
(
A/T)

ENGINE CONTROL (5S±FE)
1 2
2 1
2 1
1
I 2 I 2
I 2
I 2
I 2 C 10 C9C23 C22 B 8B 13 C2B14 B6
B 8B1B9 B 10 B2B3B4
1 2
1 2 3 114 B B B B
2 13 2 3 1
1 3 2223 BB
BR
B±Y B±YBR BR B±Y(
*6) B±Y B±Y
BR BRY
G±BY±B
BR BRB±Y Y
LG
BR BRY
P
BRYW
B±O
P±B
V±WV
W
G(
*5)
BRB BRB±Y B±Y B±Y
PIM VC E2
E2 VCC PTNKISCO ISCC EGR EVP TPCKNK HTAF AF± AF+
PTNK VC VTA E2 PIM THA THW
VC VTA E2
(
*5)
(
*5)
(
*5)
J19
JUNCTION
CONNECTOR
IDLE AIR CONTROL VALVE
VSV (
EGR)
VSV (
EVAP) VSV
(
VAPOR PRESSURE SENSOR)
KNOCK SENSOR 1
AIR FUEL RATIO SENSOR I 1
V 4
V 5 V 7
K 1
A11
VAPOR PRESSURE
SENSORMANIFOLD ABSOLUTE
PRESSURE SENSOR V 1M 1
INTAKE AIR TEMP. SENSOR
ENGINE COOLANT TEMP. SENSORI14
E 5
ENGINE CONTROL MODULEB E 7 E 8ACE 9
(
SHIELDED)
(
SHIELDED)
+B AF+
AF± HT B±Y
ID1 10
B±Y
ID1 1
II4 5
V V
C 7C6B15 C3 B 16B 12 C2B14 B6(
*1)
(
*2)
II47
ID12 ID15II48
ID16B 7B1B9 B 11 B2B3B4
P
Y
BR P P
Y Y
BR , , DE10 ,
(
*1)
(
*2)
I 6 II23
BR
THROTTLE P OSI TI ON
SENSOR T 2BR
BR
BR
B±W(
*3)
O(
*4) (
*5)
(
*5) L(
*3)
W(
*4)

FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
1C 91J11
1 2
2 1
IK2 7IK22
IK2 9II3 10 II21
1 I 2 I 2
A 10 A 20 A21 A19 C19 B11 C4 B 6C8B15 C4C17 C5A2
2 1 B8 1 3
2 A
B4 2123
A
1 3
2 5 1
BR
B±YBR BRB±Y(
*6) B±Y
BR
BR
BR
BR
BR
B±Y PS SW THR LOCK IN PRS MGC TE1
A/C SW LOCK
B±LL±R L±W BRW±L W±L W±LG L±Y
G L±YR±BR±B R±W
R±BW
L±Y
L±W
B±R
BR
L
B±W
G±O G±O
B±YB±Y
BR
B±Y
BR
OX1 HT1 TE1 NE+ NE± G+ E LSE1 +B
10A TAIL
10A
MIRROR±
HEATER (
SHIELDED)
(
SHIELDED) (
SHIELDED)
(
*6) (
*6)(
*6)
(
*6)
L
B±R
(
*6)
DIODE
(
IDLE±UP)
HEATED OXYGEN SENSOR
(
BANK 1 SENSOR 1)
DATA LINK
CONNECTOR 1
CRANKSHAFT
POSITION SENSOR
CAMSHAFT
POSITION SENSOR
JUNCTION
CONNECTORH 3
D 1
C 2
C 1
J12
D11
JUNCTION CONNECTOR
A/C SWHEATER CONTROL SW
A/C EVAPORATOR
TEMP. SENSOR
POWER STEERING OIL PRESSURE SWFROM MG
CLT RELAY
FROM
A/C DUAL
PRESSURE SW
FROM A/ C
MAGNETIC
CLUTCH AND
LOCK SENSORJ12
A13
P 2H 9
A14* 5 : CALIFORNIA
* 6 : EXCEPT CALIFORNIA
BR
ENGINE CONTROL MODULEB E 7 E 8ACE 9 +B E1
OX HT* 1 : W/ ENGINE IMMOBILISER SYSTEM
* 2 : W/O ENGINE IMMOBILISER SYSTEM
, , DE10 , B 5C1B7D12 D6D11 A13(
*1)
(
*2)
IG3 8D 4KSW
L±B L±B L±B
TO UNLOCK
WARN ING SW
A 10 A 15 A21 A13 C18 B10 B12
IG3 4II4 3D 1IMLD
R±Y R±Y R±Y
6
IND R±YTHEFT DETERRENT
ECU T 3
(
*1)
(
*2) D 3D8D9TXCT CODE RXCK
R±L
G± W
L±Y
TO TRANSPONDER
KEY AMPLIFIER
DD
J10
JUNCTION
CONNECTORII4 9 * 3 : TMC MADE
* 4 : TMMK MADE

ENGINE CONTROL (5S±FE)
EC EC I 2 II3 2II31 II2 12
C 21 B5A9A5A16
C 15 C26 C 13 C25 A9
A3 1
A42
A
A
A
A
A
B±YBR BR BR
BR BR
V±W
G± R
W
BR
G±W BR
BR
BR
BR
BR
BR
BR
BR
BR HT2 OX2 SPD W SIL
STP E03 E0 2 E01 E04
G± WBR BR
BR BR BR BR
BR
BR
BR
W G± R V±WB P±B
B P±B BR
BR
B±Y
(
SHIELDED)
(
*6)
HEATED OXYGEN
SENSOR
(
BANK 1 SENSOR 2) H 8
(
*6)
(
*5)
JUNCTION
CONNECTOR J2 3ENGINE CONTROL MODULEB E 7 E 8ACE 9
C 24E1
A
BR
A 7
B±O TACH
B±O
E1 +B
HT OX
C 15 C26 C 13 B16 A4 C 14A 8(
*1)
(
*2) , , DE10 , C 14 B13 A8A4A6(
*1)
(
*2)
D 2
BR EOM
A

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

2. CONTROL SYSTEM
*SFI system
The SFI system monitors the engine condition through the signals, which are input from each sensor (Input signals from
(1) to (14) etc.) to the engine control module. The best fuel injection volume is decided based on this data and the
program memorized by the engine control module, and the control signal is output to TERMINALS #10, #20, #30 and
#40 of the engine control module to operate the injector. (Inject the fuel). The SFI system produces control of fuel
injection operation by the engine control module in response to the driving conditions.
*ESA system
The ESA system monitors the engine condition through the signals, which are input to the engine control module from
each sensor (Input signals from (1), (2), (4) to (12) etc.) the best ignition timing is detected according to this data and the
memorized data in the engine control module, and the control signal is output to TERMINALS IGT1 and IGT2. This
signal controls the igniter to provide the best ignition timing for the driving conditions.
*Idle Air Control system
The IAC system (Step motor type) increases the RPM and provides idling stability for fast idle±up when the engine is
cold and when the idle speed has dropped due to electrical load, etc. The engine control module evaluates the signals
from each sensor (Input signals (1), (4) to (8), (13) etc.), outputs current to TERMINALS ISCO and ISCC, and controls
the idle air control valve.
*Fuel pump control system
The engine control module operation outputs to TERMINAL FC and controls the CIR OPN relay. Thus controls the fuel
pump drive speed in response to conditions.
*EGR control system
The EGR cut control system controls the VSV (EGR) by evaluating the signals from each sensor which are input to the
engine control module (Input signals (1), (5), (6), (9) etc.) and by sending output to TERMINAL EGR of the engine
control module.
*A/C conditioning operation system
In addition to the conventional A/C cut control, the engine control module performs the air conditioning operation as well
since the A/C amplifier function is built in it.
3. DIAGNOSIS SYSTEM
With the diagnosis system, when there is a malfunctioning in the engine control module signal system, the malfunction
system is recorded in the memory. The malfunctioning system can then be found by reading the display (Code) of the
malfunction indicator lamp.
4. FAIL±SAFE SYSTEM
When a malfunction occurs in any system, if there is a possibility of engine trouble being caused by continued control based
on the signals from that system, the fail±safe system either controls the system by using data (Standard values) recorded in
the engine control module memory or else stops the engine.
E7 (A), E8 (B), E9 (C), E10 (D) 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 :4.5± 5.5 volts (Ignition SW at ON position)
VTA±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 open)
PIM±E2 :3.3± 3.9 volts (Ignition SW at ON position)
THA±E2 :0.5±3.4 volts (Ignition SW on and intake air temp. 20°C, 68°F)
THW±E2 :0.2± 1.0 volts (Ignition SW on and coolant temp. 80°C, 176°F)
STA±E1 :6.0±14.0 volts (Engine cranking)
W±E1 :9.0±14.0 volts (No trouble and engine running)
TE1±E1 :9.0±14.0 volts (Ignition SW at ON position)
NSW±E1 :0± 3.0 volts (Ignition SW on and Park/Neutral position SW position P or N position)
9.0±14.0 volts (Ignition SW on and except Park/Neutral position SW position P or N position)
IGT1, IGT2±E1 : Pulse generation (Engine cranking or idling)
#10, #20, #30, #40±E01, E02 :9.0±14.0 volts (Ignition SW at ON position)
RESISTANCE AT ENGINE CONTROL MODULE WIRING CONNECTORS
(Disconnect wiring connector)
VC±E2 :2.5±5.0 kW
THA±E2 :2.21±2.69 kW (Intake air temp. 20°C, 68°F)
THW±E2 :0.29±0.354 kW (Coolant temp. 80°C, 176°F)
SERVICE HINTS