2005 TOYOTA AVENSIS Service Repair Manual

torque tyre pressure rear view mirror catalytic converter key fob mirror

Page 4209 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05−1 48
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
CONFIRMATION DRIVING PATTERN
(a) Connect the hand −held tester to the DLC3.
(b) Record DTCs and freeze frame data.
(c

05−1 48
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
CONFIRMATION DRIVING PATTERN
(a) Connect the hand −held tester to the DLC3.
(b) Record DTCs and freeze frame data.
(c) Switch the hand −held tester from normal mode to check mode (see page 05 −20).
(d) Read the value on the misfire counter for each cylinder when idling. If the value is displayed on the misfire counter, skip the following procedure of confirmation driving.
(e) Drive the vehicle several times with the engine speed, load and its surrounding range shown with EN-
GINE SPD, CALC LOAD in the freeze frame data or MISFIRE RPM, MISFIRE LOAD in the DATA LIST.
If you have no hand −held tester, turn the ignition switch to OFF after the symptom is simulated once. Then
repeat the simulation process again.
HINT:
In order to memorize the misfire DTC, it is necessary to drive with MISFIRE RPM, MISFIRE LOAD in the
DATA LIST for the period of time in the chart below. Take care not to turn the ignition switch to OFF. Turning
the ignition switch to OFF switches the diagnosis system from check mode to normal mode and all DTCs,
freeze frame data and other data are erased.
Engine SpeedTime
Idling3 minutes and 30 seconds or more
1 ,000 rpm3 minutes or more
2,000 rpm1 minutes and 30 seconds or more
3,000 rpm1minute or more
(f) Check if there is misfire and DTC and the freeze frame data. Record the DTCs, freeze frame data and
misfire counter data.
(g) Turn the ignition switch to OFF and wait at least for 5 seconds.
INSPECTION PROCEDURE
HINT:
SIf DTCs besides misfire DTCs are memorized simultaneously, troubleshoot the non −misfire DTCs first.
SRead 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.
SIf the misfire does not occur when the vehicle is brought to the workshop, the misfire can be confirmed
by reproducing the condition of the freeze frame data. Also, after finishing the repair, confirm that there
is no misfire (see confirmation driving pattern).
When only a general misfire fault code like P0300 is stored:
SErase the general misfire fault code from the hand −held tester.
SStart the engine and drive the confirmation patten.
SRead the value of the misfire ratio for each cylinder. Or read the DTC.
SPerform repairs on the cylinder that has a high misfire ratio. Or repair the cylinder indicated by the DTC.
SAfter finishing repairs, drive the confirmation pattern again and confirm that no misfire occurs.
SWhen any one of SHORT FT # 1, LONG FT # 1, SHORT FT #2 and LONG FT #2 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).
SWhen COOLANT TEMP in the freeze frame data is less than 80 ˚C( 176 ˚F), there is a possibility of
misfire only during engine warm −up.
SIf the misfire cannot be reproduced, the following reasons may apply: 1) the vehicle has low fuel, 2)
improper fuel is being used, and 3) the ignition plug is contaminated.
SBe sure to check the value on the misfire counter after the repair.

Page 4210 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual −
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −1 49
AVENSIS Supplement (RM 1045E)
1 CHECK OTHER DTC OUTPUT(IN ADDITION TO MISFIRE DTCS)
(a) Connect the hand −held tester to the DLC3.
(b) Turn the i

Page 4211 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A78640
1.0 to1.1mm
(0.039 to 0.043 in.)
05−150
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
4 READ VALUE OF HAND−HELD TESTER(NUMBER OF MISFIRE)
(a) Connect the hand−held te

Page 4212 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual −
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −1 51
AVENSIS Supplement (RM 1045E)
6 CHECK CYLINDER COMPRESSION PRESSURE OF MISFIRING CYLINDER
(See page 14−1 )
NG REPAIR OR REPLACE
OK
7 CHECK VALVE C

Page 4213 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05−1 52
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
11 SWITCH STEP BY NUMBER OF MISFIRE CYLINDER(REFER TO RESULT OF STEP
4)
S If the result of step 4 is ” 1 or 2 cylind

Page 4214 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual S01196S01699
30
20
10
5
3
02040 0.1 1
0.3
0.2 0.52
60 80100 −20
(−4) (104) (140) (176) (32) (68) (212)S01196S01699
30
20
10
5
3
02040 0.1 1
0.3
0.2 0.52
60 80100 −20
(−4) (104) (140) (176) (32

S01196S01699
30
20
10
5
3
02040 0.1 1
0.3
0.2 0.52
60 80100 −20
(−4) (104) (140) (176) (32) (68) (212)S01196S01699
30
20
10
5
3
02040 0.1 1
0.3
0.2 0.52
60 80100 −20
(−4) (104) (140) (176) (32) (68) (212)
A81700
Ohmmeter
Acceptable
TEMPERATURE_C(_F)
RESISTANCE K
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−153
AVENSIS Supplement (RM1045E)
15 READ VALUE OF HAND−HELD TESTER(INTAKE AIR TEMPERATURE AND MASS
AIR FLOW RATE)
(a) Connect the hand−held tester to the DLC3.
(b) Turn the ignition switch to ON.
(c) Check the intake air temperature.
(1) On the hand−held tester, select the item: DIAGNOSIS / OBD/MOBD / DATA LIST / ALL / INTAKE
AIR. Read the values.
Temperature: Equivalent to ambient air temperature
(d) Check the air flow rate.
(1) On the hand−held tester, select the item: DIAGNOSIS / OBD/MOBD / DATA LIST / ALL / MAF.
Read the values.
Standard:
ConditionAir flow rate (gm/s)
Ignition switch ON (do not start engine)0
Idling4to6
Running without load (2,500 rpm)13to20
Idling to quickly acceleratingAir flow rate fluctuates
NG REPLACE MASS AIR FLOW METER
OK
16 INSPECT ENGINE COOLANT TEMPERATURE SENSOR
(a) Remove the engine coolant temperature sensor.
(b) Measure the resistance between the terminals of the en-
gine coolant temperature sensor.
Standard:
Tester ConnectionTemperatureSpecified Condition
1−220_C (68_F)2.32 to 2.59 k
1−280_C(176_F)0.310 to 0.326 k
NOTICE:
When checking the engine coolant temperature sensor in
water, be careful not to allow water to contact the terminals.
After checking, dry the sensor.
HINT:
Alternate procedure: Connect an ohmmeter to the installed en-
gine coolant temperature sensor and read the resistance. Use
an infrared thermometer to measure the engine temperature in
the immediate vicinity of the sensor. Compare these values to
the resistance/temperature graph. Change the engine temper-
ature (warm up or allow to cool down) and repeat the test.
(c) Reinstall the engine coolant temperature sensor.
NG REPLACE ENGINE COOLANT TEMPERATURE
SENSOR
OK

Page 4215 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05−1 54
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
17 INSPECT MANIFOLD ABSOLUTE PRESSURE SENSOR
NG REPLACE MANIFOLD ABSOLUTE PRESSURE
SENSOR
OK
1 8 SWITCH STEP BY NUMBER

Page 4216 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A54393
I1
Wire Harness Side:
Ignition Coil Connector
I2
I3I4
Front View
A81699
E13
ECM Connector IGF1IGT4
IGT3IGT2 IGT1
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−155
AVENSIS Supplement (RM1045E)
20 C

A54393
I1
Wire Harness Side:
Ignition Coil Connector
I2
I3I4
Front View
A81699
E13
ECM Connector IGF1IGT4
IGT3IGT2 IGT1
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−155
AVENSIS Supplement (RM1045E)
20 CHECK HARNESS AND CONNECTOR OF MISFIRING CYLINDER(IGNITION COIL
ASSY−ECM)
(a) Check the harness and connectors between the ignition
coil and ECM (IGF terminal).
(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 ground10kor higher
Ignition coil (I2−2) or IGF1(E13−24)−Body ground10kor higher
Ignition coil (I3−2) or IGF1(E13−24)−Body ground10kor higher
Ignition coil (I4−2) or IGF1(E13−24)−Body ground10kor higher
(4) Reconnect the ECM connector.
(5) Reconnect the ignition coil connector.
(b) Check the harness and connectors between the ignition
coil and ECM (IGT terminal).
(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 ground10kor higher
Ignition coil (I2−3) or IGT2 (E13−9)−Body ground10kor higher
Ignition coil (I3−3) or IGT3 (E13−10)−Body ground10kor higher
Ignition coil (I4−3) or IGT4 (E13−11)−Body ground10kor higher
(4) Reconnect the ECM connector.
(5) Reconnect the ignition coil connector.
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE IGNITION COIL ASSY (THEN CONFIRM THAT THERE IS NO MISFIRE)

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