belt TOYOTA RAV4 2006 Service Repair Manual

ENGINE - 2AZ-FE ENGINE
01NEG45Y
RegulatorB
M
IG
RLO
L
Ignition Switch
To Discharge
Wa r n i n g L i g h t
Generator
ECM
281EG13
281EG12
Coil SpringPulley
Helical Coil Type One-way Clutch EG-26
Wiring Diagram
2. Generator Pulley
A helical coil type one-way clutch is used on the generator pulley in order to reduce the load that acts on
the auxiliary equipment belt.
The pulley mounting nut and the generator pulley have been integrated to achieve a compact construction.

ENGINE - 2AZ-FE ENGINE
240EG98
Idler Pulley for Automatic Tensioner
Generator Pulley
Water Pump Pulley
Air Conditioning
Compressor Pulley Crankshaft Pulley Idler Pulley
258RV77
ArmIdler Pulley
Te n s i o n e r
A - A Cross SectionAAEG-29
SERPENTINE BELT DRIVE SYSTEM
1. General
Accessory components are driven by a serpentine belt consisting of a single V-ribbed belt. It reduces the
overall engine length, weight and the number of engine parts.
An automatic tensioner eliminates the need for tension adjustment.
2. Automatic Tensioner
The automatic tensioner consists of an idler pulley and a tensioner. The idler pulley maintains belt tension
by the force of the spring that is located in the tensioner.

ENGINE - 2GR-FE ENGINE EG-72
Item
(1)(2)(3)(4)(5)
ChargingA segment conductor type generator is used.Charging
SystemA generator pulley with a clutch is used.
Starting
SystemThe PS (Planetary reduction-Segment conductor motor)
type starter is used.
Serpentine Belt
Drive SystemA serpentine belt drive system is used.
The MRE (Magnetic Resistance Element) type VVT sensorsThe MRE (Magnetic Resistance Element) type VVT sensors
are used.
The ETCS-i (Electronic Throttle Control System-intelligent)
Engine
The ETCS i (Electronic Throttle Control System intelligent)
is used.
Control
SystemThe ACIS (Acoustic Control Induction System) is used.SystemThe air intake control system is used.
The charging control is used.
Evaporative emission control system is used.

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
01MEG38Y
Water Pump Pulley
Crankshaft Pulley
Air Conditioning
Compressor PulleyIdler Pulley for
Automatic
Te n s i o n e rGenerator Pulley Belt Idler
285EG78
Idler
PulleySpring
Arm
BracketBelt Pulling
Direction
Belt Tension
Direction
Fulcrum
Cross Section EG-98
STARTING SYSTEM
The 2GR-FE engine uses the same starter as the 2AZ-FE engine. For details, see page EG-27.
SERPENTINE BELT DRIVE SYSTEM
1. General
Accessory components are driven by a serpentine belt consisting of a single V-ribbed belt. It reduces the
overall engine length, weight and the number of engine parts.
An automatic tensioner eliminates the need for tension adjustment.
2. Automatic Tensioner
The tension of the V-ribbed belt is properly maintained by the tension spring that is enclosed in the automatic
tensioner.

MAINTENANCE – UNDER HOODMA–7
MA
GENERAL MAINTENANCE
(2006/01- )
1. GENERAL NOTES
• Maintenance requirements vary depending on the
country.
• Check the maintenance schedule in the owner's
manual supplement.
• Following the maintenance schedule is mandatory.
• Determine the appropriate time to service the vehicle
using either miles driven or time elapsed, whichever
reaches the specification first.
• Maintain similar intervals between periodic
maintenance, unless otherwise noted.
• Failing to check each vehicle part could lead to poor
engine performance and increase exhaust emissions.
2. WINDSHIELD WASHER FLUID
(a) Check that there is sufficient fluid in the tank.
3. ENGINE COOLANT LEVEL
(a) Check that the coolant level is between the "FULL"
and "LOW" lines on the see-through reservoir.
4. RADIATOR AND HOSES
(a) Check that the front of the radiator is clean and not
blocked by leaves, dirt or bugs.
(b) Check the hoses for cracks, kinks, rot or loose
connections.
5. BATTERY ELECTROLYTE LEVEL
(a) Check that the electrolyte level of all the battery
cells is between the upper and lower level lines on
the case.
HINT:
If the electrolyte level is difficult to see, lightly shake
the vehicle.
6. BRAKE FLUID LEVEL
(a) Check that the brake fluid levels are near the upper
level lines on the see-through reservoirs.
7. ENGINE DRIVE BELT
(a) Check the drive belt for fraying, cracks, wear or
oiliness.
8. ENGINE OIL LEVEL
(a) Check the level on the dipstick with the engine
stopped.
9. AUTOMATIC TRANSAXLE FLUID LEVEL
10. EXHAUST SYSTEM
(a) Check for unusual exhaust sounds or abnormal
exhaust fumes. Inspect the cause and repair it.
Type See procedures
U151E See page AX-126
U151F See page AX-126

2AZ-FE ENGINE CONTROL SYSTEM – ECMES–429
ES
REMOVAL
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
2. REMOVE AIR CLEANER CAP (See page ES-411)
3. REMOVE AIR CLEANER CASE
(a) Disconnect the harness clamp.
(b) Remove the 3 bolts and air cleaner case.
4. REMOVE ECM
(a) Remove the 3 bolts of the ECM with bracket.
(b) Disconnect the 2 ECM connectors.
NOTICE:
After disconnecting the connector, make sure
that dirt, water and other foreign matter does not
contact the connecting part of the connector.
(1) Raise the 2 levers while pushing the locks on
the 2 levers, and disconnect the 2 ECM
connectors.
(c) Remove the ECM with bracket.
A124563
A124570
A124571E01

ES–4702GR-FE ENGINE CONTROL SYSTEM – ECM
ES
REMOVAL
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
2. REMOVE AIR CLEANER CAP (See page EM-23)
3. REMOVE AIR CLEANER CASE (See page EM-23)
4. REMOVE ECM
(a) Remove the 3 bolts of the ECM bracket.
(b) Disconnect the 2 ECM connectors.
NOTICE:
After disconnecting the connector, make sure
that dirt, water and other foreign matter does not
contact the connecting part of the connector.
(1) Raise the 2 levers while pushing the locks on
the 2 levers, and disconnect the 2 ECM
connectors.
(c) Remove the ECM with bracket.
(d) Remove the 4 screws and 2 ECM brackets.
A124570
A124571E01
A124573

2AZ-FE ENGINE MECHANICAL – DRIVE BELTEM–7
EM
REMOVAL
1. REMOVE RADIATOR SUPPORT OPENING COVER
2. REMOVE FRONT WHEEL RH
3. REMOVE FRONT FENDER APRON RH
4. REMOVE FRONT SUSPENSION MEMBER
REINFORCEMENT RH
(a) Remove the 4 bolts and reinforcement RH.
5. REMOVE FAN AND GENERATOR V BELT
(a) Using SST and 19 mm socket wrench, loosen the V-
ribbed belt tensioner arm clockwise, then remove
the fan and generator V belt.
SST 09216-42010
NOTICE:
• Be sure to connect SST and the tools so that
they are in line during use.
• When retracting the tensioner, turn it
clockwise slowly for 3 seconds or more. Do
not apply force rapidly.
• After the tensioner is fully retracted, do not
apply force any more than necessary.
INSTALLATION
1. INSTALL FAN AND GENERATOR V BELT
(a) Using SST and 19 mm socket wrench, loosen the V-
ribbed belt tensioner arm clockwise, then install the
fan and generator V belt.
SST 09216-42010
NOTICE:
• Be sure to connect SST and the tools so that
they are in line during use.
• When retracting the tensioner, turn it
clockwise slowly for 3 seconds or more. Do
not apply force rapidly.
• After the tensioner is fully retracted, do not
apply force any more than necessary.
2. INSTALL FRONT SUSPENSION MEMBER
REINFORCEMENT RH
(a) Install the reinforcement RH with the 4 bolts.
Torque: 96 N*m (979 kgf*cm, 71 ft.*lbf)
3. INSTALL FRONT FENDER APRON RH
4. INSTALL FRONT WHEEL RH
5. INSTALL RADIATOR SUPPORT OPENING COVER
A114351E01
A114351E01

2GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLYEM–21
EM
REMOVAL
1. DISCHARGE REFRIGERANT FROM
REFRIGERATION SYSTEM (See page AC-172)
2. DISCHARGE FUEL SYSTEM PRESSURE (See page
FU-13)
3. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
4. REMOVE NO. 1 ENGINE UNDER COVER
(a) Remove the 4 bolts, 12 clips and under cover.
5. REMOVE REAR ENGINE UNDER COVER RH
(a) Remove the 2 clips and under cover.
6. REMOVE REAR ENGINE UNDER COVER LH
(a) Remove the 2 clips and under cover.
7. REMOVE NO. 2 ENGINE UNDER COVER
(a) Remove the 2 clips and under cover.
8. REMOVE FRONT FLOOR COVER (See page FU-34)
9. DRAIN ENGINE COOLANT (See page CO-8)
10. DRAIN ENGINE OIL (See page LU-4)
11. DRAIN AUTOMATIC TRANSAXLE FLUID
(a) 2WD:
Drain automatic transaxle fluid (see page AX-172).
(b) 4WD:
Drain automatic transaxle fluid (see page AX-173)
12. DRAIN TRANSFER OIL (for 4WD)
13. REMOVE HOOD SUB-ASSEMBLY (See page ED-4)
14. REMOVE V-BANK COVER SUB-ASSEMBLY
(a) Detach the 3 clips and remove the V-bank cover.
A137900