2006 TOYOTA RAV4 tow

ENGINE - 2AZ-FE ENGINE
286EG71
Top Dead Center
Point of Max. Speed
Bottom Dead Center
Point of
Max. SpeedPoint of
Max. Speed 90
286EG72
Inertial Force of Cylinders
No.2 and No.3
Combined Inertial Force of
All Cylinders
Unbalanced Secondary
Inertial Force
Inertial Force of Cylinder
No.1 and No.4Force
Inertial force that cannot be canceled
Crankshaft Angle -90
90270
1800- 180
Inertial Force Generated by the In-line 4 Cylinders
286EG73
090180270
A
BC
DEInertial Force of Balancer
Crankshaft Angle
Secondary Inertial Force
Mass Direction of
Balance Shaft
Inertial Force of
Balancer
Mass Direction of Balance Shaft at Crankshaft AngleEG-11
Operation
In the in-line 4-cylinder engine, the crankshaft
angle for cylinders No.1 and No.4 are exactly at
the opposite (180
) position of cylinders No.2
and No.3. Therefore, the inertial force of the
pistons and the connecting rods of the former 2
cylinders and of the latter 2 cylinders almost
cancel each other. However, because the position
at which the piston reaches its maximum speed
is located toward the top dead center from the
center of the stroke, the upward inertial force is
greater than the downward inertial force. This
unbalanced secondary inertial force is generated
twice for each rotation of the crankshaft.
To cancel the unbalanced secondary inertial force, 2 balance shafts are rotated twice for each rotation of
the crankshaft and generate inertial force in the opposite direction. Also, in order to cancel the inertial force
generated by the balance shaft itself, the balance shaft actually consists of 2 shafts rotating in opposite
directions.

ENGINE - 2GR-FE ENGINE
285EG29
Timing Chain Cover
Wa t e r P u m p G a s k e t
Wa t e r P u m pVolute ChambersFrom Water Inlet Housing
Rotor
View from Back Side
Cross SectionEG-89
Engine Coolant Specifications
Engine
Ty p e
TOYOTA genuine Super Long Life Coolant
(SLLC) or similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite and
non-borate coolant with long-life hybrid
organic acid technology (coolant with
long-life hybrid organic acid technology is a
combination of low phosphates and organic
acids.) Do not use plain water alone.
Engine
CoolantColorPink
Capacity
Except Towing
Package Models8.9 Liters (9.4 US qts, 7.8 Imp. qts)
CapacityTowing Package
Models9.2 Liters (9.7 US qts, 8.1 Imp. qts)
Maintenance IntervalsFirst Time100,000 miles (160,000 km)Maintenance IntervalsSubsequentEvery 50,000 miles (80,000 km)
SLLC is pre-mixed (the U.S.A. models: 50 % coolant and 50 % deionized water, the Canada. models: 55
% coolant and 45 % deionized water), so no dilution is needed when SLLC in the vehicle is added or
replaced.
If LLC is mixed with SLLC, the interval for LLC (every 25,000 miles (USA), 32,000 km (CANADA) or
24 months whichever comes first) should be used.
2. Water Pump
The water pump has two volute chambers, and circulates coolant uniformly to the left and right banks of the
cylinder block.

ENGINE - 2GR-FE ENGINE
01NEG63Y
01MEG36Y
Generator
Stator
RotorRegulator
EB
IG
M
RLOL
Ignition Switch
ECM
Towing Package Models and Models with RSES
Other Models Generator
Rectifier
Stator
Rotor
ERegulatorB
IG
M
RLOL
Ignition Switch
ECM
Discharge
Warning Light
Discharge
Warning Light
EG-98
CHARGING SYSTEM
1. General
A compact and lightweight segment conductor type generator is used. For details of the segment conductor
type generator, see page EG-25.
Specification
ModelTowing PackageWith RSES*Others
Ty p eSC2SE0
Rated Voltage12 V12 V
Output Rated150 A100 A
*: Rear Seat Entertainment System
Wiring Diagram

ENGINE - 2GR-FE ENGINE
279EG32
30
A
B
Two Sets of Three-Phase WindingsC
Three-Phase Winding
Vo l t a g e
Staggered 30
A
BRotational
AngleVo l t a g e
C
Rotational
Angle
Dual WindingSingle Winding
281EG13 281EG12
Generator Pulley Cross Section Generator PulleyPulley
Shaft
Coil SpringOne-way ClutchEG-99
2. Dual Winding System (For Towing Package Models and Models with RSES)
A dual winding system is used. This system consists of two sets of three-phase windings whose phases are
staggered 30
. Because the generated waves from the respective windings cancel out each other, magnetic
noise is reduced.
3. Generator Pulley
A one-way clutch is set to the generator pulley. Operation of the one-way clutch cancels generator pulley
inertia and helps to prevent slipping of the V-ribbed belt. This realizes a low tension V-ribbed belt that
achieves reduced friction.

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
01MEG21Y
01MEG22Y
Engine Coolant Temperature
Sensor
Crankshaft Position Sensor
Combination Meter
Vehicle Speed SignalECM
CAN
Air Conditioning ECUCooling
Fan
ECUFan Motor
No. 1
Fan Motor
No. 2
Except Towing Package Models
Towing Package Models Engine Coolant Temperature
Sensor
Crankshaft Position Sensor
Combination Meter
Vehicle Speed SignalECM
CAN
Air Conditioning ECUCooling
Fan
ECU
No. 1
Cooling
Fan
ECU
No. 2Fan Motor
No. 1
Fan Motor
No. 2EG-129
12. Cooling Fan Control System
General
A cooling fan control system is used. To achieve an optimal fan speed in accordance with the engine coolant
temperature, vehicle speed, engine speed, and air conditioning operating conditions, the ECM calculates
the proper fan speed and sends the signals to the front controller. By receiving the signals from the ECM,
the front controller sends proper fan speed control signals to the cooling fan ECU.
Upon receiving the signals from the front controller, the cooling fan ECU actuates the fan motors.
Wiring Diagram

FU–102AZ-FE FUEL – FUEL INJECTOR
FU
5. DISCONNECT FUEL MAIN TUBE
NOTICE:
Do not forcibly bend and twist the fuel main tube.
(a) Remove the fuel tube from the fuel hose clamp.
(b) Remove the fuel pipe clamp.
(c) Wipe off any dirt on the fuel tube connector.
(d) Hold the fuel tube connector, and then install SST.
SST 09268-21010
(e) Turn SST to align the retainer inside the fuel tube
connector with the chamfered part of SST.
(f) Insert SST into the fuel tube and hold it. Then push
the fuel tube connector toward SST side.
(g) Mount the retainer of the fuel tube connector onto
the chamfered part of SST.
(h) Slide SST and fuel tube connector together towards
the fuel tube until they make a "click" sound, and
then disconnect the fuel tube.
(i) Drain the fuel remaining inside the fuel tube.
(j) Cover the fuel tube and fuel pipe with a plastic bag
to protect the disconnected part.
6. DISCONNECT NO. 2 VENTILATION HOSE
(a) Disconnect the No. 2 ventilation hose from the
ventilation valve.
7. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY
(a) Remove the 2 wire harness clamps.
(b) Disconnect the 4 fuel injector connectors.
A125337E01
A076220E03
A097786
A125333