2005 TOYOTA AVENSIS check engine

A66053
Engine Room R/B No.4EFI Relay



A79066
Engine Room R/B No.4EFI No.1 Fuse
1
2
A54396Mass Air Flow Meter Connector
Wire Harness Side
+B
A6
A18294
EVG
ECM Connector E12
05±28
±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
5CHECK HARNESS AND CONNECTOR(EFI RELAY ± MASS AIR FLOW METER)
(a)Remove the EFI relay from the engine room R/B No.4.
(b)Remove the EFI No.1 fuse from the engine room R/B No.4.
(c)Disconnect the mass air flow meter connector.
(d)Check for continuity between the wire harness side con- nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
EFI relay (3) ± EFI No.1 fuse (1)ContinuityEFI No.1 fuse (2) ± +B (A6±1)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
EFI relay (3) or EFI No.1 fuse (1) ± Body groundNocontinuityEFI No.1 fuse (2) or +B (A6±1) ± Body groundNo continuity
NOTICE:
Do not insert the tester leads hard in the procedure (c), the
holder may be damaged.
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
CHECK ECM POWER SOURCE CIRCUIT (See page 05±124)
6INSPECT ECM
(a)Check for continuity between the terminal of the E12 ECM connector and the body ground.
Standard:
Symbols (Terminal No.)Specified condition
EVG (E12±32) ± Body groundContinuity
NGCHECK AND REPLACE ECM (See page 01±32)
OK

0505L±04
05±22
±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
When the malfunction code is not confirmed in the diagnostic trouble code check and the problem still can\
not be confirmed in the basic inspection, proceed to this problem symptoms \
tables and troubleshoot accord-
ing to the numbered order given below.
SymptomSuspect AreaSee page
Engine does not crank (Does not start)1. Starter and starter relay
2. Neutral start switch circuit*19±1

No initial combustion (Does not start)
1. ECM power source circuit
2. Ignition coil (w/ Igniter) circuit
3. Fuel pump control circuit
4. Fuel system05±124
05±103
05±131
11±1
No complete combustion (Does not start)
1. Fuel pump control circuit
2. Ignition coil (w/ Igniter) circuit
3. Fuel system05±131
05±103
11±1
Engine cranks normally (Difficult to start)
1. Starter signal circuit
2. ISC valve circuit
3. Fuel pump control circuit
4. Ignition coil (w/ Igniter)
5. Spark plug
6. Compression
7. Fuel system05±135
05±100
05±131
05±10318±3
14±111±1
Cold engine (Difficult to start)
1. Starter signal circuit
2. ISC valve circuit
3. Fuel pump control circuit
4. Fuel system
5. Ignition coil (w/ Igniter)
6. Spark plug05±135
05±100
05±131 11±1
05±103 18±3
Hot engine (Difficult to start)
1. Starter signal circuit
2. ISC valve circuit
3. Fuel pump control circuit
4. Fuel system
5. Ignition coil (w/ Igniter)
6. Spark plug05±135
05±100
05±131 11±1
05±103 18±3
Incorrect first idle (Poor idling)1. ISC valve circuit05±100
High engine idle speed (Poor idling)
1. ISC valve circuit
2. ECM power source circuit
3. Neutral start switch circuit*05±100
05±124

Low engine idle speed (Poor idling)
1. ISC valve circuit
2. Neutral start switch circuit*
3. Fuel pump control circuit
4. Fuel system05±100

05±131 11±1
Rough idling (Poor idling)
1. ISC valve circuit
2. ECM power source circuit
3. Fuel pump control circuit05±100
05±124
05±131
Hunting (Poor idling)
1. ISC valve circuit
2. ECM power source circuit
3. Fuel pump control circuit05±100
05±124
05±131
Hesitation/Poor acceleration (Poor drivability)
1. Fuel system
2. Fuel pump control circuit
3. Ignition coil (w/ Igniter) circuit11±1
05±131
05±103
Muffler explosion, after fire (Poor drivability)
1. Ignition coil (w/ Igniter) circuit
2. Spark plug
3. Fuel system05±103 18±3
11±1
Surging (Poor drivability)
1. Fuel pump control circuit
2. Spark plug
3. Fuel system05±131 18±3
11±1

0505J±04
05±16
±
DIAGNOSTICS SFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Parameters listed in the chart may not be exactly the same as your reading due to \
the type of instrument
or other factors.
If a malfunction code is displayed during the DTC check in the check mode, check the circuit f\
or the codes
listed in the table below. For details of each code, refer to the ''See page '' under the respective ''DTC No.''
in the DTC chart.
DTC No.
(See page)Detection ItemTrouble Area*1
CHK ENGMemory
P0100
(05±24)Mass Air Flow Circuit Malfunc-
tion
Open or short in mass air flow meter circuit

Mass air flow meter

ECM

P0110
(05±30)Intake Air Temperature Circuit
Malfunction
Open or short in intake air temp. sensor circuit

Intake air temp. sensor (built into mass air flow meter)

ECM

P0115
(05±34)Engine Coolant Temperature Cir-
cuit Malfunction
Open or short in engine coolant temperature sensor circuit

Engine coolant temperature sensor

ECM

P0116
(05±38)Engine Coolant Temperature Cir-
cuit Range/Performance Prob-
lem
Engine coolant temperature sensor

Thermostat
P0120
(05±39)Throttle Pedal Position Sensor/
Switch ºAº Circuit Malfunction
Open or short in throttle position sensor circuit

Throttle position sensor

ECM

P0121
(05±44)Throttle Pedal Position Sensor/
Switch ºAº Circuit Range/Perfor-
mance Problem

Throttle position sensor
P0125
(05±45)Insufficient Coolant Temp. for
Closed Loop Fuel Control

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Air induction system

Fuel pressure

Injector

Gas leakage on exhaust system

ECM

P0130*3
(05±54)
Oxygen Sensor Circuit Malfunc-
tion (Bank 1 Sensor 1)

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Air induction system

Fuel pressure

Injector

P0133*3
(05±60)
Oxygen Sensor Circuit Slow Re-
sponse (Bank 1 Sensor 1)

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Air induction system

Fuel pressure

Injector

ECM

P0135
(05±65)Oxygen Sensor Heater Circuit
Malfunction (Bank 1 Sensor 1)
Open or short in heater circuit of heated oxygen sensor

Heated oxygen sensor heater

ECM

P0136
(05±54)Oxygen Sensor Circuit Malfunc-
tion (Bank 1 Sensor 2)
Open or short in heated oxygen sensor circuit

Heated oxygen sensor
P0141
(05±65)Oxygen Sensor Heater Circuit
Malfunction (Bank 1 Sensor 2)
Open or short in heater circuit of heated oxygen sensor

Heated oxygen sensor heater

ECM


0505N±04
ENGINE CONTROL SYSTEM Check Sheet
Customer's Name
Driver's Name
Date Vehicle
Brought in
License No.
VIN
Production Date
Licence No.
Odometer Reading
km
miles
Problem Symptoms
Engine does
not Start
Difficult to
Start
Poor Idling
Poor
Driveability
Engine Stall
Others
Engine does not crankNo initial combustionNo complete combustion
Engine cranks slowly
Other
Incorrect first idleIdling rpm is abnormalHigh ( rpm)Low ( rpm)
Rough idling
Other
HesitationBack fireMuffler explosion (after±fire)Surging
Knocking
Other
Soon after startingAfter accelerator pedal depressed
After accelerator pedal released
During A/C operation
Shifting from N to D
Other
Data Problem
Occurred
Problem Frequency
Condition When
Problem Occurs
Weather
Engine Operation
Engine Temp. Place Outdoor
TemperatureConstant
Sometimes ( times per day/month)Once only
Other
Fine
CloudyRainySnowyVarious/Other
Hot
Warm Cool
HighwaySuburbsInner CityUphillDownhill
Rough road
Other
Cold
Warming upAfter Warming upAny temp.Other
Starting
Just after starting ( min.)IdlingRacing
Driving
Constant speedAccelerationDeceleration
A/C switch ON/OFF
Other
Condition of check engine warning light
(CHK ENG)Remains on Sometimes lights up Does not light up
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal Malfunction code(s) (code )
Freeze frame data ( )
Normal mode
(Pre±check)
Check Mode DTC InspectionInspector's
Name
Cold (approx.
C/
F)
05±4
± DIAGNOSTICSSFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK

0505G±04
±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
05±1
AVENSIS REPAIR MANUAL (RM1018E)
SFI SYSTEM(1ZZ±FE/3ZZ±FE)
HOW TO PROCEED WITH TROUBLESHOOTING
1VEHICLE BROUGHT TO WORKSHOP
2CUSTOMER PROBLEM ANALYSIS (See page 05±4)
3CONNECT THE HAND±HELD TESTER TO DLC3
HINT:
If the display indicates a communication fault in the tool, inspect DLC3.
4CHECK DTC AND FREEZE FRAME DATA(See page 05±5)
HINT:
Record or print DTC and freeze frame data, if needed.
5CLEAR DTC AND FREEZE FRAME DATA (See page 05±5)
6 VISUAL INSPECTION
7SETTING THE CHECK (TEST) MODE DIAGNOSIS (See page 05±5)
8 PROBLEM SYMPTOM CONFIRMATION
HINT:
If the engine does not start, perform steps 10 and 12 first.
AMalfunction does not occur
BMalfunction occurs
B GO TO STEP 10
A

031GG±01
± SERVICE SPECIFICATIONSENGINE HOOD/DOOR
03±73
AVENSIS REPAIR MANUAL (RM1018E)
ENGINE HOOD/DOOR
TORQUE SPECIFICATION
Part TightenedNmkgfcmftlbf
HOOD
Hood hinge x Hood1313310
Hood hinge x Body5.55649 in.lbf
Hood lock x Hood8.08271 in.lbf
FRONT DOOR
Door check x Body3030622
Door check x Door panel5.55646 in.lbf
Door frame sub±assy rear lower x Door panel8.08271 in.lbf
Door glass x Front door window regulator5.55649 in.lbf
Door hinge x Body2626519
Door hinge x Door panel2626519
Door lock x Door panel5.05144 in.lbf
Door lock striker x Body2323517
Door outside handle cover x Door panel7.07162 in.lbf
Door outside handle frame x Door panel4.04135 in.lbf
Outer view mirror x Door panel101027
Window regulator x Door panel8.08271 in.lbf
REAR DOOR
Door check x Body3030622
Door check x Door panel5.55649 in.lbf
Door hinge x Body2626519
Door hinge x Door panel2626519
Door lock x Door panel5.05144 in.lbf
Door lock striker x Body2323517
Door outside handle cover x Door panel4.04135 in.lbf
Door outside handle frame x Door panel7.07162 in.lbf
Window division bar sub±assy x Door panel5.55649 in.lbf
LAGGAGE COMPERTMENT DOOR
Back door striker assy x Body11.51208.0
Luggage compertment door x Hinge7.07062 in.lbf
Luggage lock assy x Luggage compertment door5.05144 in.lbf
Luggage compertment outside garnish x Luggage compertment door4.94943 in.lbf
BACK DOOR (LIFTBACK MODEL)
Back door femaie stopper x Door panel5.55649 in.lbf
Back door hinge assy x Body19.520014
Back door hinge assy x Door panel19.520014
Back door lock assy x Door panel8.08271 in.lbf
Back door lock Striker x Body11.51208.0
Back door stay sub±assy x Body7.07162 in.lbf
Back door stay sub±assy x Door panel2222416
Center stop lamp assy x Door panel5.55649 in.lbf
BACK DOOR (WAGON MODEL)
Back door femaie stopper x Door panel5.55649 in.lbf
Back door hinge assy x Body19.520014
Back door hinge assy x Door panel19.520014
Back door lock assy x Door panel8.08271 in.lbf
Back door lock Striker x Body11.51208.0
Back door stay sub±assy x Body7.07162 in.lbf

A12490
Injector Signal Waveform
20 V/
Division
GND GND(Magnification)
20 V/
Division
50 m sec. / Division (Idling) 1 m sec. / Division (Idling)
Infection duration
A79071
From
Terminal 3
of IG2 Relay
(See Page 05±124)
R±BR±B
1
2
I5 Injector No. 1
B±RE131
#10
R±B 1
2
I6 Injector No. 2
YE132
#20
R±B 1 2
I7 Injector No. 3
WE133
#30
R±B 1 2
I8 Injector No. 4
BE134
#40 ECM
R±B
EA1
8
05±74
±
DIAGNOSTICS SFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
Reference: Inspection using an oscilloscope for injector signal waveform. (1) With the engine idling, check the waveforms between terminals #1 ± #4 and E1 of the ECM con-nector.
HINT:
The correct waveforms are shown below.
WIRING DIAGRAM

±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
05±75
AVENSIS REPAIR MANUAL (RM1018E)
CONFIRMATION DRIVING PATTERN
(a)Connect the hand±held tester to the DLC3.
(b)Record the DTC and freeze frame data.
(c)Use the hand±held tester to set to the check mode (See page 05±5).
(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 surr\
ounding range shown with EN- GINE SPD, CALC LOAD in the freeze frame data or MISFIRE RPM, MISFIRE LOAD in\
the data list.
If you do not have the hand±held tester, turn the ignition switch OFF after the symptom is simulated
once. Then repeat the simulation process again.
HINT:
In order to memorize the DTC of the misfire, it is necessary to drive arou\
nd MISFIRE RPM, MISFIRE LOAD
in the following data list. Be sure not to turn the ignition switch OFF, because the diagnosis system is changed
from the check mode to the nomal mode and will result in all of the DTCs and\
the freeze frame data being
erased.
Engine SpeedTime
Idling5 minutes and 45 seconds or more
1,000 rpm4 minutes or more
2,000 rpm2 minutes and 30 seconds or more
3,000 rpm1 minute and 30 seconds or more
(f) Check if there is misfire by monitoring the DTC and the freeze frame data, an\
d then record them.
(g) Turn the ignition switch OFF and wait for at least 5 seconds.
INSPECTION PROCEDURE
HINT:

If the other DTCs besides misfire are memorized simultaneously, perform the troubleshooting for them
first.

Read freeze frame data using \f  \b \f\f
 Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, it is useful for d\
etermining whether the vehicle
was running or stopped, the engine was warmed up or not, the air±fuel ra\
tio was lean or rich, etc. at
the time of the malfunction.

If the misfire is not occured when the vehicle is brought to the workshop,\
it can be confirmed by repro-
ducing the condition of the freeze frame data. After finishing the repai\
r, confirm that there is no misfire
(See the confirmation driving pattern).

When either of SHORT FT #1 or LONG FT #1 the freeze frame data is over the range of 20%, there
is a possibility that the air±fuel ratio is inclining either to ºR\
ICHº (±20% or less) or ºLEANº (+20% or
more).

When COOLANT TEMP in the freeze frame data is less than 80
C (176
F), there is a possibility of
misfire only during warming up.

In case that the misfire cannot be reproduced, this may be because of th\
e driving with the shortage
of fuel, the use of improper fuel, a stain of ignition plug and etc.