2005 TOYOTA AVENSIS oil

031E5−02
− SERVICE SPECIFICATIONSIGNITION
03−25
AVENSIS Supplement (RM1045E)
TORQUE SPECIFICATION
2AZ−FSE:
Part TightenedN
mkgf
cmft
lbf
Ignition coil assy x Cylinder head cover sub−assy9.09280 in.
lbf
Spark plug x Cylinder head sub−assy1919414
Camshaft position sensor x Cylinder head sub−assy9.09279 in.
lbf
Wire harness protector x throttle body bracket8.48674 in.
lbf
Engine wire No. 3 (battery negative terminal) x Battery5.45548 in.
lbf
Crankshaft position sensor x Timing chain cover sub−assy9.09279 in.
lbf

A76879
IP1I13
Ignition Switch
IGN Driver Side J/B
E9
E11ECM
Battery FL MAINEFI
No. 1
2
B−G2
118
9
18 4DH
2
E9E9
1 12 31 5
EFI
Relay
D
EEBR GR B−W
DA
J/C 1A
J28IGSW
+B2 MREL
E1
Engine Room
J/B No. 41 4A
4BEngine Room
R/B No. 1 1EFI
AM2
1 211
1 2
B−G6
(RHD) IE4 1 (LHD)
B−R B−RB−R
4 4
4
4
4
4Engine Room
R/B No. 4
Engine
Room
R/B No. 4B−Y
B−W
B−R
ECW−B
B−RB−R B−R
(RHD) (LHD)
D J14D J28 (RHD)(LHD)
D J14
D
J28 D J141
E9 +B (RHD)
(LHD)B−W
B−W (RHD)
(LHD)B−W
J26A
J27E
J8
J/CJ/C
CC
IE12
GR
(LHD)(RHD)IP1 IE42
3
AM2 IG2
Engine Room
J/B No. 1 05−236
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
ECM POWER SOURCE CIRCUIT
CIRCUIT DESCRIPTION
When the ignition switch is turned ON, the positive battery voltage is applied to terminal IGSW of the ECM
and the EFI relay (Markied: EFI) control circuit in the ECM sends a signal to terminal MREL of the ECM
switching on the EFI relay.
This signal causes current to flow to the coil, closing the contacts of the EFI relay and supplying power to
terminals +B and +B2 of the ECM.
If the ignition switch is turned OFF, the ECM holds the EFI relay on for maximum of 2 seconds to allow for
the initial setting of the throttle valve.
WIRING DIAGRAM
05CK0−02

− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−167
AVENSIS Supplement (RM1045E)
DTC P0351IGNITION COIL ”A” PRIMARY/SECONDARY
CIRCUIT
DTC P0352 IGNITION COIL ”B” PRIMARY/SECONDARY
CIRCUIT
DTC P0353 IGNITION COIL ”C” PRIMARY/SECONDARY
CIRCUIT
DTC P0354 IGNITION COIL ”D” PRIMARY/SECONDARY
CIRCUIT
HINT:
SThese DTCs indicate a malfunction related to the primary circuit.
SIf DTC P0351is displayed, check No.1ignition coil with igniter circuit.
SIf DTC P0352 is displayed, check No. 2 ignition coil with igniter circuit.
SIf DTC P0353 is displayed, check No. 3 ignition coil with igniter circuit.
SIf DTC P0354 is displayed, check No. 4 ignition coil with igniter circuit.
CIRCUIT DESCRIPTION
A Direct Ignition System (DIS) is used on this vehicle. The DIS improves the ignition timing accuracy, reduces
high−voltage loss, and enhances the overall reliability of the ignition system by eliminating the distributor.
The DIS is a1−cylinder ignition system which ignites one cylinder with one ignition coil. In the1−cylinder
ignition system, the one spark plug is connected to the end of the secondary winding. High voltage generated
in the secondary winding is applied directly to the spark plug. The spark of the spark plug passes from the
center electrode to the ground electrode.
The ECM determines the ignition timing and outputs the ignition signals (IGT) for each cylinder. Using the
ignition (IGT) signal, the ECM turns on and off the power transistor inside the igniter and this switches on
and off the current to the primary coil. When the current flow to the primary coil is cut off, high−voltage is
generated in the secondary coil and this voltage is applied to the spark plugs to spark inside the cylinders.
As the ECM cuts the current to the primary coil, the igniter sends back the ignition confirmation (IGF) signal
for each cylinder ignition to the ECM.
05HIL−01

A83838
Crankshaft
Position
Sensor
Camshaft
Position
SensorIGT1
IGF
IGT2
IGT3
IGT4 ECM
No.1Spark Plug
No. 2 Spark Plug
No. 3 Spark Plug
No. 4 Spark Plug IgniterFrom Battery
Ignition Coil
TACH
To Tachometer Other Sensors
(Engine Coolant Sensor,
Air Flow Sensor, Throttle
Position Sensor, etc.)No.2 Ignition
Coil with igniter
No.3 Ignition
Coil with igniter
No.4 Ignition
Coil with igniterNo.1Ignition
Coil with igniter
GND
GND CH1
CH2
A35500
Normal Signal Waveforms 05−168
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E) DTC No.
DTC Detection ConditionTrouble Area
P0351
P0352
P0353
P0354
No IGF signal to ECM while engine is running
SIgnition system
SOpen or short in IGF and IGT circuit between ignition coil with
igniter and ECM (ignition coil circuit1through 4)
SIgnition coil with igniter (ignition coil1through 4)
SIG2 relay
SECM
Reference: Inspection using the oscilloscope.
HINT:
The correct waveforms are as shown on the left.
ItemDetails
TerminalCH1: IGT1, IGT2, IGT3, IGT4−E1
CH2: IGF1−E1
Equipment Setting2 V/Division, 20 ms/Division
ConditionWhile the engine is cranking or idling

A76873
8
IGF1 IGT2 IGT1
IGT3 E13
IGT4 I1
Ignition Coil and
Igniter No.1
P R−W
IGNW−R IE4
LG−B
ECR−B
L−YE13
E13
E13
E13 9
1110
24 I2
Ignition Coil and
Igniter No. 2
I3
Ignition Coil and
Igniter No. 3
I4
Ignition Coil and
Igniter No. 4W−R
W−R W−R 3
2
14
1
42
2 3
3
3 1
4
4 1 R−B R−B
R−B R−B R−B B−R
W−B
W−B
W−B
W−B W−B W−B W−B
1
N2
Noise Filter
(Ignition)R−B B−R 1
3 Engine Room R/B No.1
Engine Room J/B No.1
B−G 1A
2
B−G
FL MAIN
Battery Engine Room
J/B No.4I13
Ignition Switch
6
AM2 IG24
(LHD)IP1 1
(RHD)
B−R
1
1
1 1 2
2 AM2IG2
1B−R
BB
51 44
44DH 2
DL 16
IG2
Relay
4A 1
4B 1Engine
Room
R/B No.4
EA1
8R−B
W−B R−BW−B
EF B−R2ECM
W−R
W−R Driver
Side J/B
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−169
AVENSIS Supplement (RM1045E)
WIRING DIAGRAM

A76903
E1
IGF 1
ECM Connector
E
13
E 11
05 −1 70
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand−held tester . Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was
running or stopped, if the engine was warmed up or not, if the air −fuel ratio was lean or rich, and other data
from the time the malfunction occurred.
1 PERFORM SIMULATION TEST(CHECK DTC)
(a) Read the DTC and check which of the cylinders causes the DTC (see page 05 −1 9) .
(b) Clear the DTC (see page 05 −1 9) .
(c) Swap the ignition coil with igniter of the cylinder that is referred by the DTC for the others.
NOTICE:
Do not swap the ignition coil with igniter connector for the others.
(d) Start the engine.
(e) Read the DTC (see page 05 −1 9) .
Result:
Display (DTC output)Proceed to
P035 1, P0352, P0353, and/or P0354A
Other than shown aboveB
B REPLACE IGNITION COIL ASSY
A
2 INSPECT ECM(IGF 1VOLTAGE)
(a) Disconnect the I 1, I2, I3 or I4 ignition coil connector.
(b) Turn the ignition switch to ON.
(c) Measure the voltage between the specified terminals of the E11and E 13 ECM connector.
Standard:
Tester ConnectionSpecified Condition
IGF 1(E 13− 24) −E1 (E 11−1 )4.5 to 5.5 V
(d) Reconnect the ignition coil connector.
NG REPLACE ECM (See page 10 − 65 Pub. No.
RM 1018E AVENSIS)
OK

A76903
E1
IGF1IGT1 IGT2 IGT3
IGT4
ECM Connector E13
E11
A76903
E1
IGF1IGT1 IGT2 IGT3
IGT4
ECM Connector E13
E11
A54393
Wire Harness Side:
Ignition Coil Connector
GND +B
I1I2
I3I4
Front View
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−171
AVENSIS Supplement (RM1045E)
3 INSPECT ECM(IGT1, IGT2, IGT3 OR IGT4 VOLTAGE)
(a) Measure the voltage between the applicable terminals of
the E11and E13 ECM connectors when the engine is
cranked.
Standard:
Tester ConnectionSpecified Condition
IGT1(E13−8)−E1(E11−1)Between 0.1V and 4.5 V
IGT2 (E13−9)−E1(E11−1)Between 0.1V and 4.5 V
IGT3 (E13−10)−E1(E11−1)Between 0.1V and 4.5 V
IGT4 (E13−11)−E1(E11−1)Between 0.1V and 4.5 V
NG REPLACE ECM (See page10−65 Pub. No.
RM1018E AVENSIS)
OK
4 INSPECT ECM(IGT1, IGT2, IGT3 OR IGT4 VOLTAGE)
(a) Disconnect the I1, I2, I3 or I4 ignition coil connector.
(b) Measure the voltage between the applicable terminals of
the E11and E13 ECM connectors when the engine is
cranked.
Standard:
Tester ConnectionSpecified Condition
IGT1(E13−8)−E1(E11−1)4.5 V or more
IGT2 (E13−9)−E1(E11−1)4.5 V or more
IGT3 (E13−10)−E1(E11−1)4.5 V or more
IGT4 (E13−11)−E1(E11−1)4.5 V or more
(c) Reconnect the ignition coil connector.
NG REPLACE ECM (See page10−65 Pub. No.
RM1018E AVENSIS)
OK
5 CHECK IGNITION COIL ASSY(POWER SOURSE)
(a) Disconnect the I1, I2, I3 or I4 ignition coil connector.
(b) Check the resistance between terminal GND of the igni-
tion coil connector and body ground.
Standard:1
or less
(c) Turn the ignition switch to ON.
(d) Measure the voltage between terminals +B and GND of
the ignition coil connector.
Standard: 9 to14V
(e) Reconnect the ignition coil connector.
NG Go to step 7
OK

A54393
I1
Wire Harness Side:
Ignition Coil Connector
I2
I3I4
Front View
A81699
E13
ECM Connector IGF1IGT4
IGT3IGT2 IGT1
05−172
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
6 CHECK HARNESS AND CONNECTOR(ECM−IGNITION COIL)
(a) Check the harness and connector between the ignition
coil and ECM (IGF terminal) connectors
(1) Disconnect the I1, I2, I3 or I4 ignition coil connector.
(2) Disconnect the E13 ECM connector.
(3) Check the resistance between the wire harness
side connectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
Ignition coil (I1−2)−IGF1(E13−24)Below1

Ignition coil (I2−2)−IGF1(E13−24)Below1

Ignition coil (I3−2)−IGF1(E13−24)Below1

Ignition coil (I4−2)−IGF1(E13−24)Below1

Standard (Check for short):
Tester ConnectionSpecified Condition
Ignition coil (I1−2) or IGF1(E13−24)−Body ground10k
or higher
Ignition coil (I2−2) or IGF1(E13−24)−Body ground10k
or higher
Ignition coil (I3−2) or IGF1(E13−24)−Body ground10k
or higher
Ignition coil (I4−2) or IGF1(E13−24)−Body ground10k
or higher
(4) Reconnect the ignition coil connector.
(5) Reconnect the ECM connector.
(b) Check the harness and connector between the ignition
coil and ECM (IGT terminal) connectors
(1) Disconnect the I1, I2, I3 or I4 ignition coil connector.
(2) Disconnect the E13 ECM connector.
(3) Check the resistance between the wire harness
side connectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
Ignition coil (I1−3)−IGT1(E13−8)Below1

Ignition coil (I2−3)−IGT2 (E13−9)Below1

Ignition coil (I3−3)−IGT3 (E13−10)Below1

Ignition coil (I4−3)−IGT4 (E13−11)Below1

Standard (Check for short):
Tester ConnectionSpecified Condition
Ignition coil (I1−3) or IGT1(E13−8)−Body ground10k
or higher
Ignition coil (I2−3) or IGT2 (E13−9)−Body ground10k
or higher
Ignition coil (I3−3) or IGT3 (E13−10)−Body ground10k
or higher
Ignition coil (I4−3) or IGT4 (E13−11)−Body ground10k
or higher
(4) Reconnect the ignition coil connector.
(5) Reconnect the ECM connector.
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE IGNITION COIL ASSY