2005 TOYOTA AVENSIS Service Repair Manual

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Page 4977 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A78423
20V
/Division Injector Signal Waveform
20V
/Division
GND
100 msec./Division (Idling)(Magnification)
GND
1 msec./Division (Idling)
Injection Duration
– DIAGNOSTICSSFI SYSTEM (1ZZ–FE/3ZZ–FE

Page 4978 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A76891
I13
Ignition Switch
4 6
B–R B–R
IE4 (LHD)
1
1 IP1
(RHD) DH
2
DL 16
Driver
Side J/B
IGN
B–R
1 AM2 IG2
1
2
2
1
1A1 1Engine
Room
R/B No.1
Engine
Room
J/B No.1
B–G
4A
1
4B1 Engine

Page 4979 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual –
DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
05–121
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
CONFIRMATION DRIVING PATTERN
(a) Connect the intelligent tester II to the DLC

Page 4980 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05–122
–
DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
INSPECTION PROCEDURE
HINT:
If any DTCs other than the misfire DTCs are set si

05–122
–
DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
INSPECTION PROCEDURE
HINT:
If any DTCs other than the misfire DTCs are set simultaneously, first troubleshoot them.
If a misfire does not occur when the vehicle is brought to the workshop, a mi\
sfire can be confirmed by
reproducing the condition of the freeze frame data. Also, after finishing repairs, \
confirm that misfires
do not recur (see the confirmation driving pattern).
Read freeze frame data using the intelligent tester II. Freeze frame dat\
a record the engine condition
when malfunctions are detected. When troubleshooting, freeze frame data \
can help determine if the
vehicle was moving or stationary, 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.
On 6 and 8 cylinder engines, misfiring cylinders cannot be identified at\
high engine speed and only
a general misfire DTC P0300 is stored instead of the individual misfiring\
cylinder DTCs (P0301 to
P0308).
If a misfire starts in a high engine speed area or a misfire occurs only i\
n a high engine speed area, only
DTC P0300 may be stored.
When only a general misfire DTC P0300 is stored:
Erase the general misfire DTC from the ECM using the intelligent tester \
II.
Start the engine and perform the confirmation driving pattern.
Check the value of the misfire ratio for each cylinder. Or check the DTC(s).
Perform repairs on the cylinder that has a high misfire ratio. Or repair the cy\
linder indicated by the DTC.
After finishing repairs, perform the confirmation driving pattern again and c\
onfirm that no misfire oc-
curs.
When either of Short FT #1 and Long FT #1 in the freeze frame data is over the range of 20 %, there
is a possibility that the air–fuel ratio is becoming rich (–20 % \
or less) or lean (+20 % or more).
When Coolant Temp in the freeze frame data is less than 80 C (176 F), there is a possibility that mis-
fires occur only during engine warm–up.
If a misfire cannot be reproduced, the following reasons may apply: 1) th\
e vehicle has low fuel, 2) im-
proper fuel is being used, and 3) the ignition plug has been contaminated.
Be sure to check the misfire counter value after repairs.
1 CHECK OTHER DTC OUTPUT(IN ADDITION TO MISFIRE DTCS)
(a) Connect the intelligent tester II to the DLC3.
(b) Turn the ignition switch to ON and turn the intelligent tester ll ON.
(c) Select the following menu items: Powertrain / Engine and ECT / DTC.
(d) Read DTCs. Result:
Display (DTC Output)Proceed To
P0300, P0301, P0302, P0303 and/or P0304A
P0300, P0301, P0302, P0303 or P0304 and other DTCsB
HINT:
If any DTCs other than P0300, P0301, P0302, P0303
or P0304 are output, troubleshoot those DTCs.
B GO TO RELEVANT DTC CHART (See page 05–27 )
A

Page 4981 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual – DIAGNOSTICSSFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
05–123
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
2 CHECK WIRE HARNESS, CONNECTOR AND VACUUM HOSE IN ENGINE ROOM
(a) Check the conn

Page 4982 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A81912
1.0 to 1.1 mm
(0.039 to 0.043 in.)
05–124
– DIAGNOSTICSSFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
5 CHECK SPARK PLUG AND SPARK OF MISFIR

Page 4983 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual – DIAGNOSTICSSFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
05–125
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
6 CHANGE NORMAL SPARK PLUG AND CHECK SPARK OF MISFIRING CYLINDER
(a) Change the

Page 4984 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A54393
I1
Wire Harness Side:
Ignition Coil with Igniter Connector
I2
I3I4
Front View
A80458
E13
ECM Connector IGF
A54393
I1
Wire Harness Side:
Ignition Coil with Igniter Connector
I2
I3I4
Front View
A

A54393
I1
Wire Harness Side:
Ignition Coil with Igniter Connector
I2
I3I4
Front View
A80458
E13
ECM Connector IGF
A54393
I1
Wire Harness Side:
Ignition Coil with Igniter Connector
I2
I3I4
Front View
A80458
E13
ECM Connector IGT1
IGT2
IGT3
IGT4
05–126
– DIAGNOSTICSSFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
7 CHECK HARNESS AND CONNECTOR OF MISFIRING CYLINDER(IGNITION COIL
ASSY – ECM)
(a) Check the harness and the connectors between the igni-
tion coil with igniter and ECM (IGF terminal).
(1) Disconnect the I1, I2, I3 and/or I4 ignition coil with
igniter connector.
(2) Disconnect the E13 ECM connector.
(3) Check the resistance.
Standard (Check for open):
Tester ConnectionSpecified Condition
Ignition coil (I1–2) – IGF (E13–24)Below 1 Ω
Ignition coil (I2–2) – IGF (E13–24)Below 1 Ω
Ignition coil (I3–2) – IGF (E13–24)Below 1 Ω
Ignition coil (I4–2) – IGF (E13–24)Below 1 Ω
Standard (Check for short):
Tester ConnectionSpecified Condition
Ignition coil (I1–2) or IGF (E13–24) – Body ground10 kΩ or higher
Ignition coil (I2–2) or IGF (E13–24) – Body ground10 kΩ or higher
Ignition coil (I3–2) or IGF (E13–24) – Body ground10 kΩ or higher
Ignition coil (I4–2) or IGF (E13–24) – Body ground10 kΩ or higher
(4) Reconnect the ignition coil with igniter connector.
(5) Reconnect the ECM connector.
(b) Check the harness and the connectors between the igni-
tion coil with igniter and ECM (IGT terminal).
(1) Disconnect the I1, I2, I3 and/or I4 ignition coil with
igniter connector.
(2) Disconnect the E13 ECM connector.
(3) Check the resistance.
Standard (Check for open):
Tester ConnectionSpecified Condition
Ignition coil (I1–3) – IGT1 (E13–8)Below 1 Ω
Ignition coil (I2–3) – IGT2 (E13–9)Below 1 Ω
Ignition coil (I3–3) – IGT3 (E13–10)Below 1 Ω
Ignition coil (I4–3) – IGT4 (E13–11)Below 1 Ω
Standard (Check for short):
Tester ConnectionSpecified Condition
Ignition coil (I1–3) or IGT1 (E13–8) – Body ground10 kΩ or higher
Ignition coil (I2–3) or IGT2 (E13–9) – Body ground10 kΩ or higher
Ignition coil (I3–3) or IGT3 (E13–10) – Body ground10 kΩ or higher
Ignition coil (I4–3) or IGT4 (E13–11) – Body ground10 kΩ or higher
(4) Reconnect the ignition coil with igniter connector.
(5) Reconnect the ECM connector.
OK REPLACE IGNITION COIL ASSY
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR

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