sensor TOYOTA RAV4 2006 Service Service Manual

ENGINE - 2GR-FE ENGINE EG-102
System
Outline
Air-fuel Ratio Sensor and
Oxygen Sensor Heater
ControlMaintains the temperature of the air-fuel ratio sensor or oxygen sensor at an
appropriate level to increase accuracy of detection of the oxygen
concentration in the exhaust gas.
Evaporative Emission
Control
[See page EG-131]
The ECM controls the purge flow of evaporative emission (HC) in the
canister in accordance with engine conditions.
Approximately five hours after the ignition switch has been turned OFF,
the ECM operates the canister pump module to detect any evaporative
emission leakage occurring in the EVAP (evaporative emission) control
system through changes in the EVAP control system pressure.
Engine ImmobilizerProhibits fuel delivery and ignition if an attempt is made to start the engine
with an invalid ignition key.
Diagnosis
[See page EG-132]When the ECM detects a malfunction, the ECM diagnoses and memorizes
the failed section.
Fail-safe
[See page EG-133]When the ECM detects a malfunction, the ECM stops or controls the engine
according to the data already stored in the memory.

ENGINE - 2GR-FE ENGINE
01MEG07Y
SENSORSACTUATORS
MASS AIR FLOW METER
INTAKE AIR TEMPERATURE
SENSOR
CRANKSHAFT POSITION
SENSOR
ENGINE COOLANT
TEMPERATURE SENSOR
ACCELERATOR PEDAL
POSITION SENSOR
THROTTLE POSITION
SENSOR
KNOCK SENSOR (Bank 1)
KNOCK SENSOR (Bank 2)
INTAKE VVT SENSOR (Bank 1)
INTAKE VVT SENSOR (Bank 2)
EXHAUST VVT SENSOR
(Bank 1)
EXHAUST VVT SENSOR
(Bank 2)
IGNITION SWITCHVG
THA
NE
THW
VPA
VPA2
VTA1
VTA2
KNK1
KNK2
VV1
VV2
EV1
EV2
IGSWECM#10
#20
#30
#40
#50
#60
IGT1 -
IGT6
IGF1
M
OC1
OC2
OE1
OE2SFI
NO. 1 INJECTOR
NO. 2 INJECTOR
NO. 3 INJECTOR
NO. 4 INJECTOR
NO. 5 INJECTOR
NO. 6 INJECTOR
ESA
IGNITION COIL with
IGNITER
SPARK PLUG
ETCS-i
THROTTLE CONTROL
MOTOR
VVT-i (INTAKE SIDE)
CAMSHAFT TIMING OIL
CONTROL VALVE (Bank 1)
CAMSHAFT TIMING OIL
CONTROL VALVE (Bank 2)
VVT-i (EXHAUST SIDE)
CAMSHAFT TIMING OIL
CONTROL VALVE (Bank 1)
CAMSHAFT TIMING OIL
CONTROL VALVE (Bank 2)EG-103
2. Construction
The configuration of the engine control system is as shown in the following chart.
(Continued)

ENGINE - 2GR-FE ENGINE
01MEG06Y
COMBINATION METER
Vehicle Speed Signal
AIR-FUEL RATIO SENSOR
Bank 1, Sensor 1
Bank 2, Sensor 1
HEATED OXYGEN SENSOR
Bank 1, Sensor 2
Bank 2, Sensor 2
CANISTER PUMP MODULE
CANISTER PRESSURE
SENSOR
PARK / NEUTRAL POSITION
SWITCH
TRANSMISSION CONTROL
SWITCH
TRANSPONDER KEY ECU
GENERATOR
BATTERY CURRENT SENSOR
(BUILT-IN BATTERY
TEMPERATURE SENSOR)
WIPER CONTROL SWITCHSPD
A1A
A2A
OX1B
OX2B
PPMP
STA
P, R, N, D
4, L
IMI
IMO
DF
THB VCIB
INHECMACIS
AICV
FC
FPR
HA1A
HA2A
HT1B
HT2B
RLOACIS
ACIS ACTUATOR
AIR INTAKE CONTROL
SYSTEM
VSV
FUEL PUMP CONTROL
CIRCUIT OPENING RELAY
FUEL PUMP RELAY
AIR-FUEL RATIO SENSOR
HEATER CONTROL
AIR-FUEL RATIO SENSOR
HEATER
Bank 1, Sensor 1
Bank 2, Sensor 1
HEATED OXYGEN SENSOR
HEATER CONTROL
HEATED OXYGEN SENSOR
HEATER
Bank 1, Sensor 2
Bank 2, Sensor 2
CHARGING CONTROL
GENERATOR EG-104
(Continued)

ENGINE - 2GR-FE ENGINE
01MEG08Y
DEFOGGER RELAY
TA I L L A M P R E L AY
STOP LIGHT SWITCH
CRUISE CONTROL SWITCH
AIR CONDITIONING ECU
AIRBAG SENSOR
ASSEMBLY
SKID CONTROL ECU
DLC3
MAIN RELAY
BATTERYELS
ELS2
STP
CCS
CANH,
CANL
TC
TA C H
MREL
+B
BATTECMRFC
RFC
MPMP
VPMP
PRG
WCOOLING FAN CONTROL*1
COOLING FAN ECU
FAN MOTOR NO. 1 AND
NO. 2
COOLING FAN CONTROL*
2
COOLING FAN ECU NO. 1
FAN MOTOR NO. 1
COOLING FAN ECU NO. 2
FAN MOTOR NO. 2
EVAPORATIVE EMISSION
CONTROL
LEAK DETECTION
PUMP
VENT VALVE
PURGE VSV
COMBINATION METER
MIL
: CANEG-105
*
1: Except Towing Package Models
*
2: Towing Package Models

ENGINE - 2GR-FE ENGINE
01MEG29Y
Ignition SwitchCombination Meter
Vehicle Speed Signal
MIL
Battery Current Sensor
(Built-in Battery
Temperature Sensor)
Park / Neutral
Position Switch
Battery
Generator
Fuel Pump Relay
Fuel Pump
Vent Valve
Circuit Opening
RelayDLC3*1*2*3
CAN
ECM
Cruise Control Switch
Accelerator Pedal
Position Sensor
Stop Light Switch
Canister
Pressure
SensorLeak
Detection
Pump
Intake Air
Temp. Sensor
VSV (For
Air Intake
Control)Mass Air
Flow Meter
AirThrottle Position
Sensor
Purge VSV
Throttle
Control
Motor
*4*5
Fan
Motor No. 1Fan
Motor
No. 2
Cooling
Fan
ECUCooling
Fan
ECU
No. 1Cooling
Fan
ECU
No. 2
Fan Motor No. 1
Fan Motor No. 2
ACIS Actuator
Intake Camshaft Timing
Oil Control Valve (Bank 2)Injector Injector
Intake Camshaft Timing
Oil Control Valve (Bank 1)
Intake VVT Sensor (Bank 1)
Ignition Coil With Igniter
Exhaust VVT Sensor (Bank 1)
Exhaust Camshaft Timing
Oil Control Valve (Bank 1)
Air-fuel Ratio Sensor
(Bank1, Sensor1)
TWC
Knock
Sensor
Intake VVT
Sensor (Bank 2)
Exhaust VVT
Sensor (Bank 2)
Air-fuel Ratio Sensor
(Bank2, Sensor1)Exhaust Camshaft
Timing Oil Control
Valve (Bank 2)
Crankshaft Position
Sensor
Engine Coolant
Temperature Sensor Heated Oxygen Sensor
(Bank1, Sensor2)Heated Oxygen Sensor
(Bank2, Sensor2)TWCTWC
EG-106
3. Engine Control System Diagram
*1: Air Conditioning ECU
*
2: Airbag Sensor Assembly
*
3: Skid Control ECU
*
4: Except Towing Package Models
*
5: Towing Package Models

ENGINE - 2GR-FE ENGINE
01MEG24Y
01MEG25Y
01MEG26Y
Heated Oxygen Sensor
(Bank 2, Sensor2)
Battery Current Sensor
(Built-in Battery Temperature Sensor)ECMHeated Oxygen Sensor
(Bank 1, Sensor 2)Canister Pump Module
Ve n t Va l v e
Leak Detection Pump
Canister Pressure SensorFuel Pump
VSV (for Air Intake Control)
Mass Air Flow Meter
Intake Air Temperature Sensor
Air Cleaner Cap
Vacuum Tank
Actuator (For Air Intake Control)
Combination Meter
Malfunction Indicator Lamp
DLC3
Accelerator Pedal
Position SensorEG-107
4. Layout of Main Components

ENGINE - 2GR-FE ENGINE
01MEG27Y
01MEG28Y
Intake Camshaft Timing Oil Control Valve (Bank 2)
Ignition Coil with Igniter
Injector
Intake VVT Sensor
(Bank 2)
Exhaust Camshaft
Timing Oil Control
Valve (Bank 2)
Crankshaft
Position Sensor
Exhaust VVT Sensor
(Bank 2)Air-fuel Ratio
Sensor
(Bank 2, Sensor 1)Engine Coolant
Temperature SensorIntake Camshaft Timing Oil Control
Valve (Bank 1)
Intake VVT
Sensor (Bank 1)
Exhaust VVT Sensor
(Bank 1)
Exhaust Camshaft
Timing Oil Control
Valve (Bank 1)
Air-fuel Ratio Sensor
(Bank 1, Sensor 1)
ACIS ActuatorThrottle Position Sensor
Knock Sensor (Bank 1)
Knock Sensor (Bank 2) EG-108

ENGINE - 2GR-FE ENGINEEG-109
5. Main Components of Engine Control System
General
The main components of the 2GR-FE engine control system are as follows:
Component
OutlineQuantity
ECM32-bit CPU1
Mass Air Flow MeterHot-wire Type1
Crankshaft Position Sensor (Rotor Teeth)Pick-up Coil Type (36 - 2)1
Intake VVT Sensor (Rotor Teeth)MRE (Magnetic Resistance Element)
Ty p e ( 3 )2
Exhaust VVT Sensor (Rotor Teeth)MRE (Magnetic Resistance Element)
Ty p e ( 3 )2
Accelerator Pedal Position SensorNon-contact Type1
Throttle Position SensorNon-contact Type1
Knock SensorBuilt-in Piezoelectric Type
(Non-resonant Type / Flat Type)2
Air fuel Ratio Sensor(Bank 1, Sensor 1)Type with Heater (Planar Type)1 eachAir-fuel Ratio Sensor(Bank 2, Sensor 1)Type with Heater (Planar Type)1 each
Heated Oxygen (Bank 1, Sensor 2)Type with Heater (Cup Type)1 eachHeated Oxygen
Sensor
(Bank 2, Sensor 2)Type with Heater (Cup Type)1 each
Injector12-hole Type6

ENGINE - 2GR-FE ENGINE
285EG79
279EG50
Engine
Front
Timing RotorCrankshaft
Position Sensor
Timing Rotor (720
CA)
10
CA
2 Teeth
Missing EG-110
Mass Air Flow Meter
The 2GR-FE engine uses the same mass air flow meter as the 2AZ-FE engine. For details, see page EG-38.
Crankshaft Position Sensor
The timing rotor of the crankshaft consists of 34 teeth, with 2 teeth missing. The crankshaft position sensor
outputs the crankshaft rotation signals every 10
, and the missing teeth are used to determine the
top-dead-center.

ENGINE - 2GR-FE ENGINE
285EG82285EG83
Intake VVT Sensor (Bank 1)
Timing Rotor
RH BankTiming RotorExhaust VVT Sensor (Bank 1)
RH Bank
285EG84
VVT Sensor Signal Plate (720 CA)
VVT
Sensor
0 V
Crankshaft
Position
Sensor
0 V180
CA 60 CA
60 CA180 CA 120 CA120
CA
360
CA 360 CA
10
CAE G - 111
Intake and Exhaust VVT Sensors
1) General
The MRE (Magnetic Resistance Element) type intake and exhaust VVT sensors are used. To detect the
camshaft position, a timing rotor that is secured to the camshaft in front of the VVT controller is used
to generate 6 (3 Hi Output, 3 Lo Output) pulses for every 2 revolutions of the crankshaft.
Sensor Output Waveforms