ignition coil TOYOTA RAV4 2006 Service Owner's Manual

2AZ-FE ENGINE MECHANICAL – CYLINDER HEADEM–85
EM
(c) Examine the front marks and numbers, and check
that the order is as shown in the illustration. Then
install the bearing caps onto the cylinder head.
(d) Apply a light coat of engine oil to the threads and
under the heads of the bearing cap bolts.
(e) Using several steps, uniformly tighten the 20
bearing cap bolts in the sequence shown in the
illustration.
Torque: 29.5 N*m (301 kgf*cm, 22 ft.*lbf) for No.
1 and No. 2 bearing cap
9.0 N*m (92 kgf*cm, 80 in.*lbf) for No. 3
bearing cap
NOTICE:
Install the camshaft with the timing mark of the
camshaft timing gear on top.
6. INSTALL NO. 1 CHAIN VIBRATION DAMPER (See
page EM-33)
7. INSTALL CHAIN SUB-ASSEMBLY (See page EM-33)
8. INSTALL CHAIN TENSIONER SLIPPER (See page
EM-34)
9. INSTALL TIMING CHAIN GUIDE (See page EM-34)
10. INSTALL NO. 1 CRANKSHAFT POSITION SENSOR
PLATE (See page EM-35)
11. INSTALL TIMING CHAIN COVER SUB-ASSEMBLY
(See page EM-35)
12. INSTALL NO. 1 CHAIN TENSIONER ASSEMBLY (See
page EM-37)
13. INSTALL V-RIBBED BELT TENSIONER ASSEMBLY
(See page EM-38)
14. INSTALL ENGINE MOUNTING BRACKET RH (See
page EM-38)
15. INSTALL CRANKSHAFT PULLEY (See page EM-38)
16. INSTALL OIL PAN SUB-ASSEMBLY (See page EM-39)
17. INSTALL CRANKSHAFT POSITION SENSOR (See
page ES-402)
18. INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY
(See page EM-40)
19. INSTALL SPARK PLUG (See page EM-16)
20. INSTALL IGNITION COIL ASSEMBLY (See page IG-9)
21. INSTALL IDLER PULLEY (See page EM-41)
F050591E01
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2AZ-FE ENGINE MECHANICAL – ENGINE UNITEM–123
EM
DISASSEMBLY
1. REMOVE IDLER PULLEY (See page EM-23)
2. REMOVE OIL DIPSTICK
3. REMOVE OIL DIPSTICK GUIDE (See page EM-57)
4. REMOVE MANIFOLD STAY (See page EM-57)
5. REMOVE NO. 2 MANIFOLD STAY (See page EM-58)
6. REMOVE NO. 1 EXHAUST MANIFOLD HEAT
INSULATOR (See page EM-58)
7. REMOVE EXHAUST MANIFOLD CONVERTER SUB-
ASSEMBLY (See page EM-58)
8. REMOVE WATER INLET (See page CO-15)
9. REMOVE THERMOSTAT
10. REMOVE NO. 1 WATER BY-PASS PIPE
(a) Remove the bolt, 2 nuts, pipe and gasket.
11. REMOVE NO. 3 WATER BY-PASS PIPE
(a) Remove the bolt, 2 nuts, pipe and gasket.
12. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY
(See page EM-26)
13. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY (See page ES-395)
14. REMOVE KNOCK SENSOR (See page ES-420)
15. REMOVE RADIO SETTING CONDENSER (See page
EM-63)
16. REMOVE OIL PRESSURE SWITCH ASSEMBLY (See
page EM-63)
17. REMOVE ENGINE COOLANT TEMPERATURE
SENSOR (See page EM-63)
18. REMOVE CAMSHAFT POSITION SENSOR (See page
EM-64)
19. REMOVE IGNITION COIL ASSEMBLY (See page IG-9)
A112226
A126940

EM–342GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLY
EM
(c) Install and uniformly tighten the 6 bolts and 4 nuts in
several passes.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
(d) Connect the 6 fuel injector connectors.
19. INSTALL FUEL INJECTOR ASSEMBLY (See page FU-
16)
20. INSTALL NO. 2 ENGINE MOUNTING STAY RH
(a) Install the mounting stay with the bolt.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
21. INSTALL IGNITION COIL ASSEMBLY
(a) Install the 6 ignition coils with the 6 bolts to the
cylinder head.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
22. INSTALL INTAKE AIR SURGE TANK ASSEMBLY
NOTICE:
Make sure there is no oil on the bolts. If there is oil
on the bolts, clean them before installing them.
(a) Install a new gasket to the surge tank.
(b) Using a 5 mm hexagon socket wrench, install the 4
bolts.
Torque: 18 N*m (184 kgf*cm, 13 ft.*lbf)
(c) Install the surge tank with the 2 nuts and 2 bolts.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf) for bolt
16 N*m (163 kgf*cm, 12 ft.*lbf) for nut
(d) Connect the connector.
(e) Install the vacuum hose clamp with the bolt.
Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf)
A076533E01
A129468
A129467
A129466

2AZ-FE IGNITION – IGNITION SYSTEMIG–5
IG
ON-VEHICLE INSPECTION
1. CHECK IGNITION COIL ASSEMBLY AND PERFORM
SPARK TEST
NOTICE:
In this section, the terms "cold" and "hot" refer to
the temperature of the coils. "Cold" means
approximately -10 to 50
C (14 to 122F). "Hot" means
approximately 50 to 100
C (122 to 212F).
(a) Check the DTCs.
NOTICE:
If a DTC is present, perform troubleshooting in
accordance with the procedure for that DTC.
(b) Check that sparks occur.
(1) Remove the No. 1 engine cover.
(2) Remove the bolt and ignition coil.
(3) Using a 16 mm spark plug wrench, remove the
spark plug.
(4) Disconnect the 4 fuel injector connectors.
(5) Install the spark plug into the ignition coil, and
then connect the ignition coil connectors.
(6) Ground the spark plug.
(7) Check that sparks occur at the spark plug while
the engine is being cranked.
NOTICE:
• Be sure to ground the spark plugs when
checking them.
• If the ignition coil has been struck or
dropped, replace it.
• Do not crank the engine for more than 2
seconds.
If sparks do not occur, Perform the spark test.
(8) Using a 16 mm plug wrench, install the spark
plug.
Torque: 25 N*m (254 kgf*cm, 18 ft.*lbf)
A124849E01
A097448E01
A124396

IG–62AZ-FE IGNITION – IGNITION SYSTEM
IG
(9) Install the ignition coil with the bolt.
Torque: 9.0 N*m (92 kgf*cm, 80 in.*lbf)
(10) Connect the 4 fuel injector connectors.
(11) Install the No. 1 engine cover.
(c) Spark test flow chart.
(1) Check that the ignition coil connector is
securely connected.
Result
(2) Perform the spark test on each ignition coil.
1. Replace the ignition coil with a normal one.
2. Perform the spark test again.
Result
(3) Check the power supply to the ignition coil.
1. Disconnect the ignition coil connector.
2. Turn the ignition switch ON.
3. Measure the voltage of the wire harness
side connector.
Standard voltage
Result
(4) Check the resistance of the camshaft position
sensor.
Standard resistance
Result
(5) Check the resistance of the crankshaft position
sensor.
Standard resistance
Result Proceed to
NG Connect securely
OK Go to next step
Result Proceed to
OK Replace ignition coil
NG Go to next step
A124397
Tester Connection Specified Condition
1 (+B) - 4 (GND) 9 to 14 V
Result Proceed to
NG Check wire harness and connector
OK Go to next step
Temperature Condition Specified Condition
Cold 835 to 1,400
Hot 1,060 to 1,645
Result Proceed to
NG Replace camshaft position sensor
OK Go to next step
Temperature Condition Specified Condition
Cold 985 to 1,600
Hot 1,265 to 1,890

2AZ-FE IGNITION – IGNITION SYSTEMIG–7
IG
Result
(6) Check the IGT signal from the ECM.
Result
2. CHECK SPARK PLUG
(a) Check the electrode.
(1) Using a megohmmeter, measure the insulation
resistance.
Standard insulation resistance:
10 M
or more
HINT:
• If a megohmmeter is not available, perform
the following simple inspection instead.
• If the result is 10 M
or less, clean the plug
and measure the resistance again.
(b) Alternative inspection method:
(1) Quickly accelerate the engine to 4,000 rpm 5
times.
(2) Remove the spark plug.
(3) Visually check the spark plug.
If the electrode is dry, the spark plug is
functioning properly. If the electrode is damp,
proceed to the next step.
(c) Check the spark plug for any damage on its threads
and insulator.
If there is damage, replace the spark plug.
Recommended spark plug
(d) Check the spark plug electrode gap.
Maximum electrode gap for used spark plug:
1.3 mm (0.051 in.)
If the gap is greater than the maximum, replace the
spark plug.
Electrode gap for new spark plug:
1.0 to 1.1 mm (0.039 to 0.043 in.)
Result Proceed to
NG Replace crankshaft position sensor
OK Go to next step
Result Proceed to
NG Check ECM (see page ES-183)
OK Repair wiring between ignition coil
and ECM
I039522E10
A126881
Manufacturer Spark plug type
DENSO SK20R11
NGK IFR6A11
A126880E01

2GR-FE IGNITION – IGNITION SYSTEMIG–5
IG
ON-VEHICLE INSPECTION
1. CHECK IGNITION COIL ASSEMBLY AND PERFORM
SPARK TEST
NOTICE:
In this section, the terms "Cold" and "Hot" refer to
the temperature of the sensor. "Cold" means
approximately -10 to 50
C (14 to 122F). "Hot" means
approximately 50 to 100
C (122 to 212F).
(a) Check the DTCs.
NOTICE:
If a DTC is present, perform troubleshooting in
accordance with the procedure for that DTC.
(b) Check that sparks occur.
(1) Remove the V-bank cover.
(2) Remove the intake air surge tank (see page
EM-27).
(3) Remove the bolt and ignition coil.
(4) Using a 16 mm spark plug wrench, remove the
spark plug.
(5) Disconnect the 6 fuel injector connectors.
(6) Install the spark plug into the ignition coil, and
then connect the ignition coil connectors.
(7) Ground the spark plug.
(8) Check that sparks occur at the spark plug while
the engine is being cranked.
NOTICE:
• Be sure to ground the spark plugs when
checking them.
• If the ignition coil has been struck or
dropped, replace it.
• Do not crank the engine for more than 2
seconds.
If sparks do not occur, perform troubleshooting
using the spark test flowchart.
(9) Using a 16 mm plug wrench, install the spark
plug.
Torque: 25 N*m (254 kgf*cm, 18 ft.*lbf)
(10) Install the ignition coil with the bolt.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
(11) Connect the 6 fuel injector connectors.
(12) Install the intake air surge tank (see page EM-
34).
(13) Install the V-bank cover.
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IG–62GR-FE IGNITION – IGNITION SYSTEM
IG
(c) Perform troubleshooting using the spark test
flowchart.
(1) Check that the ignition coil connector is
securely connected.
Result
(2) Perform the spark test on each ignition coil.
1. Replace the ignition coil with a normal one.
2. Perform the spark test again.
Result
(3) Check the power supply to the ignition coil.
1. Disconnect the ignition coil connector.
2. Turn the ignition switch ON.
3. Measure the voltage of the wire harness
side connector.
Standard voltage
Result
(4) Check the resistance of the crankshaft position
sensor.
Standard resistance
Result
(5) Check the IGT signal from the ECM.
Result
Result Proceed to
NG Connect securely
OK Go to next step
Result Proceed to
OK Replace ignition coil
NG Go to next step
A136824
Tester Connection Specified Condition
1 (+B) - 4 (GND) 9 to 14 V
Result Proceed to
NG Check wire harness and connector
OK Go to next step
Temperature Condition Specified Condition
Cold 1,630 to 2,740
Hot 2,065 to 3,225
Result Proceed to
NG Replace crankshaft position sensor
OK Go to next step
Result Proceed to
NG Check ECM (see page ES-220)
OK Repair wiring between ignition coil and
ECM

EI–22ENGINE IMMOBILISER – ENGINE IMMOBILISER SYSTEM
EI
2. PERFORM ACTIVE TEST
HINT:
Performing the intelligent tester's ACTIVE TEST allows
relay, VSV, actuator and other items to be operated
without removing any parts. Performing the ACTIVE
TEST early in troubleshooting is one way to save time.
The DATA LIST can be displayed during the ACTIVE
TEST.
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON and turn the tester ON.
(c) Select the following menu items: DIAGNOSIS /
OBD/MOBD / IMMOBILISER / ACTIVE TEST.
(d) Perform the ACTIVE TEST by referring to the table
below.
Transponder key ECU:
+B+B judgment / NORMAL or
BREAKNORMAL: Battery supply is
normal
BREAK: Battery supply is
malfunctioning-
ANTENNA COILTransponder key coil condition /
NORMAL or FAILNORMAL: Transponder key coil
is normal
FAIL: Transponder key coil is
malfunctioning- ItemMeasurement Item / Display
(Range)Normal Condition Diagnostic Note
Item Test Details Diagnostic Note
SECURITY INDIC Turns security indicator light / ON or OFF -

EI–28ENGINE IMMOBILISER – ENGINE IMMOBILISER SYSTEM
EI
(b) Turn the ignition switch ON with a key that cannot start
the engine.
(c) On the intelligent tester, enter the following menus:
DIAGNOSIS / OBD/MOBD / IMMOBILISER / DATA LIST
/ ANTENNA COIL. Read the result.
Transponder key ECU:
OK:
NORMAL (Transponder key coil is normal) appears
on the screen.
OK
NG
(a) Disconnect the E46 ECU connector.
(b) Disconnect the E5 amplifier connector.
(c) Measure the resistance of the wire harness side
connectors.
Standard resistance
NG
OK
ItemMeasurement Item / Display
(Range)Normal Condition Diagnostic Note
ANTENNA COILTransponder key coil condition /
NORMAL or FAILNORMAL: Transponder key coil
is normal
FAIL: Transponder key coil is
malfunctioning-
REPLACE TRANSPONDER KEY ECU
2CHECK WIRE HARNESS (TRANSPONDER KEY ECU - TRANSPONDER KEY AMPLIFIER)
B110403E14
Tester Connection Specified Condition
E46-14 (VC5) - E5-1 (VC5)
Below 1
E46-15 (CODE) - E5-4 (CODE)
E46-4 (TXCT) - E5-5 (TXCT)
E46-5 (AGND) - E5-7 (AGND)
E46-14 (VC5) or E5-1 (VC5) - Body
ground
10 k
or higher E46-15 (CODE) or E5-4 (CODE) -
Body ground
E46-4 (TXCT) or E5-5 (TXCT) - Body
ground
E46-5 (AGND) or E5-7 (AGND) - Body
ground
REPAIR OR REPLACE HARNESS AND
CONNECTOR
REPLACE TRANSPONDER KEY AMPLIFIER