code TOYOTA AVENSIS 2005 Service Repair Manual

05−88
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
The following A/F CONTROL procedure enables the technician to check and graph the voltage outputs of
both the heated oxygen sensor.
To display the graph, enter ACTIVE TEST/ A/F CONTROL/USER DATA, then select ”O2S B 1S 1 and O2S
B 1S2” or ”O2S B2S 1 and O2S B2S2” by pressing the ”YES” button followed by the ”ENTER” button and then
the ”F4” button.
NOTICE:
If the vehicle is short of fuel, the air −fuel ratio becomes LEAN and heated oxygen sensor DTCs will
be recorded, and the CHK ENG then illuminates.
HINT:
S If different DTCs related to different systems that have terminal E2 as the ground terminal are output
simultaneously, terminal E2 may have an open circuit.
S 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.
S A high heated oxygen sensor (sensor 1) voltage (0.5 V or more) could be caused by a rich air −fuel
mixture. Check for conditions that would cause the engine to run rich.
S A low heated oxygen sensor (sensor 1) voltage (0.4 V or less) could be caused by a lean air −fuel mix-
ture. Check for conditions that would cause the engine to run lean.
1 CHECK OTHER DTC OUTPUT(IN ADDITION TO HEATED OXYGEN SENSOR
DTCS)
(a) Connect the hand −held tester to the DLC3.
(b) Turn the ignition switch to ON and turn the hand −held tester ON.
(c) Select the item: DIAGNOSIS / OBD/MOBD / DTC INFO / CURRENT CODES.
(d) Read the DTCs using the hand −held tester.
Result:
Display (DTC output)Proceed to
P0 130, P0 150, P2 195, P2 196, P2 197 and/or P2 198A
P0 130, P0 150, P2 195, P2 196, P2 197 or P2 198 and other DTCsB
HINT:
If any other codes besides P0 130, P0 150, P2 195, P2 196, P2 197 and/or P2 198 are output, perform trouble-
shooting for those DTCs first.
B GO TO RELEVANT DTC CHART(See page 05 −31)
A

P18349
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −89
AVENSIS Supplement (RM 1045E)
2 READ VALUE OF HAND −HELD TESTER(OUTPUT VOLTAGE OF HEATED OXYGEN
SENSOR)
(a) Connect the hand −held tester to the DLC3.
(b) Start the engine and turn the hand −held tester ON.
(c) Select the item: DIAGNOSIS / OBD/MOBD / DATA LIST / ALL / O2S B 1S 1 or O2S B2S 1.
(d) Warm up the heated oxygen sensor with the engine speed at 2,500 rpm for approximately 90 seconds.
(e) Read the output voltage of the heated oxygen sensor during idling. Heated oxygen sensor (sensor 1) output voltage:
Alternates repeatedly between less than 0.4 V and more than 0.55 V (see the following table).
NG Go to step 5
OK
3 PERFORM CONFIRMATION DRIVING PATTERN
HINT:
Clear all DTCs prior to performing the confirmation driving pattern. GO
4 READ OUTPUT DTC(SEE IF HEATED OXYGEN SENSOR DTCS ARE OUTPUT AGAIN)
(a) Connect the hand −held tester to the DLC3.
(b) Turn the ignition switch to ON and turn the hand −held tester ON.
(c) Select the item: DIAGNOSIS / OBD/MOBD / DTC INFO / CURRENT CODES.
(d) Read the DTCs using the hand −held tester.
Result:
Display (DTC output)Proceed to
P0 130, P0 150, P2 195, P2 196, P2 197 and/or P2 198A
No outputB
B CHECK FOR INTERMITTENT PROBLEMS
(See Page 05 −7)
A
REPLACE HEATED OXYGEN SENSOR

− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−93
AVENSIS Supplement (RM1045E)
14 READ OUTPUT DTC(SEE IF HEATED OXYGEN SENSOR DTCS ARE OUTPUT
AGAIN)
(a) Connect the hand−held tester to the DLC3.
(b) Turn the ignition switch to ON and turn the hand−held tester ON.
(c) Select the item: DIAGNOSIS / OBD/MOBD / DTC INFO / CURRENT CODES.
(d) Read the DTCs using the hand−held tester.
Result:
Display (DTC output)Proceed to
P0130, P0150, P2195, P2196, P2197 and/or P2198A
No outputB
B REPLACE FUEL INJECTOR ASSY
A
REPLACE HEATED OXYGEN SENSOR

05CID−02
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −31
AVENSIS Supplement (RM 1045E)
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Parameters listed in the chart may be different than your readings depending on the type of instrument used
and other factors.
During the DTC check, refer to the table below if a malfunction code is displayed. For details about each
code, refer to the page number in the DTC Chart’s left column.
DTC No.
(See Page)Detection ItemTrouble Area*1
CHK ENGMemory
P00 10
(05 −41)Camshaft Position ”A” Actuator
Circuit (Bank 1)SOpen or short in OCV circuit
S OCV
S ECM
ff
P00 11
(05 −44)Camshaft Position ”A” −Timing
Over −Advanced or System Per-
formance (Bank 1)SValve timing
S OCV
S Camshaft timing gear assy
S ECM
ff
P00 12
(05 −41)Camshaft Position ”A” −Timing
Over −Retarded (Bank 1)
SValve timing
S OCV
S Camshaft timing gear assy
S ECM
ff
P00 16
(05 −48)Crankshaft Position −Camshaft
Position Correlation (Bank 1
Sensor A)S Mechanical system (Timing chain has jumped a tooth, chain
stretched)
S ECM
ff
P003 1
(05 −49)Oxygen Sensor Heater Circuit
Low (Bank 1Sensor 1)*7
SOpen or short in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 1Sensor 1)*7
SEFI relay
S EFI No. 2 fuse
S ECMff
P0032
(05 −49)Oxygen Sensor Heater Circuit
High (Bank 1Sensor 1)*7
SOpen or short in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 1Sensor 1)*7
SEFI relay
S ECMff
P0037
(05 −49)Oxygen Sensor Heater Control
Circuit Low (Bank 1Sensor 2) *7
SOpen in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 1Sensor 2) *7
SEFI relay
S EFI No. 2 fuse
S ECMff
P0038
(05 −49)Oxygen Sensor Heater Control
Circuit High (Bank 1Sensor 2) *7
SShort in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 1Sensor 2) *7
SEFI relay
S ECMff
P005 1
(05 −49)Oxygen Sensor Heater Circuit
Low (Bank 2 Sensor 1)*8
SOpen in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 2 Sensor 1)*8
SEFI relay
S EFI No. 2 fuse
S ECMff
P0052
(05 −49)Oxygen Sensor Heater Circuit
High (Bank 2 Sensor 1)*8
SShort in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 2 Sensor 1)*8
SEFI relay
S ECMff
P0057
(05 −49)Oxygen Sensor Heater Control
Circuit Low (Bank 2 Sensor 2) *8
SOpen in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 2 Sensor 2) *8
SEFI relay
S EFI No. 2 fuse
S ECMff
P0058
(05 −49)Oxygen Sensor Heater Control
Circuit High (Bank 2 Sensor 2) *8
SShort in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater (Bank 2 Sensor 2) *8
SEFI relay
S ECMff

05HI0−01
FI2547
A76859
Hand −Held Tester
DLC3
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −1 5
AVENSIS Supplement (RM 1045E)
DIAGNOSIS SYSTEM
1. DESCRIPTION for EURO −OBD (European spec.)
S When troubleshooting Euro −OBD vehicles, the only dif-
ference from the usual troubleshooting procedure is that
you c onnect an O BD scan t ool com plying wit h I SO
1 503 1− 4 or a hand −held tester to the vehicle, and read
the various data output from the vehicle’s ECM.
S Eur o −O BD r egulat ions r equir e t hat t he v ehicle’s on −
board computer illuminates the check engine warning
light (CHK ENG) on the instrument panel when the com-
puter detects a malfunction in: 1) the emission control
system / components, or 2) the powertrain control compo-
nents (which affect vehicle emissions), or 3) the comput-
er. In addition, the applicable Diagnostic Trouble Codes
(DTCs) prescribed by ISO 1503 1− 4 are recorded in the
ECM memory (see page 05 −31).
If the malfunction does not reoccur in 3 consecutive trips, the
CHK ENG goes off automatically but the DTCs remain recorded
in the ECM memory.
S To check the DTCs, connect the OBD scan tool or hand −
held tester to Data Link Connector 3 (DLC3) on the ve-
hicle. The OBD scan tool or hand −held tester also en-
ables you to erase the DTCs and check the freeze frame
data and various forms of engine data. (See the instruc-
tion manual for the OBD scan tool or the hand −held tes-
ter).
S DTCs include ISO controlled codes and manufacturer
controlled codes. ISO controlled codes must be set ac-
cording to the ISO, while manufacturer controlled codes
can be set by a manufacturer within certain restrictions
(see the DTC chart on page 05 −31).
S The diagnosis system operates in normal mode during
normal vehicle use. In ”normal mode”, 2 trip detection log-
ic* is used to ensure accurate detection of malfunctions.
A ”check mode”, is also available to technicians as an op-
tion. In ”check mode”, 1 trip detection logic is used for sim-
ulating malfunction symptoms and increasing the sys-
tem’s ability to detect malfunctions, including intermittent
malfunctions (hand −held tester only)
(see page 05 −1 9) .
S*2 trip detection logic:
When a malfunction is first detected, the malfunction is
temporarily stored in the ECM memory ( 1st trip). If the
ignition switch is turned OFF and then ON again, and the
same malfunction is detected again, the CHK ENG will il-
luminate (2nd trip).

FI2547
A76859
Hand−Held Tester
DLC3
05 −1 6
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
S Freeze frame data:
The freeze frame data records the engine conditions (fuel
system, calculated load, engine coolant temperature, fuel
trim, engine speed, vehicle speed, etc.) when a malfunc-
tion 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 malfunc-
tion occurred.
Priorities for troubleshooting:
When multiple DTCs occur, find out the order in which the DTCs
should be inspected by checking the component’s DTC chart.
If no instructions are written in the DTC chart, check DTCs in the
following order of priority:
(a) DTCs ot her t han f uel t r im m alf unct ion DTCs ( P0 1 71 ,
P0 172, P0 174 and P0 175) and misfire DTCs (P0300 to
P0304).
(b) Fuel trim malfunction DTCs (P0 171,P0 172, P0 174 and
P0 175).
(c) Misfire DTCs (P0300 to P0304).
2. DESCRIPTION for M −OBD (Except European spec.)
S When troubleshoot Multiplex OBD (M −OBD) vehicles, the
only difference from the usual troubleshooting procedure
is that you connect the hand −held tester to the vehicle,
and read the various data output from the vehicle’s ECM.
S The vehicle’s on −board computer illuminates the check
engine warning lamp (CHK ENG) on the instrument panel
when the computer detects a malfunction in the computer
itself or in drive system components. In addition, the appli-
cable Diagnostic Trouble Codes (DTCs) are recorded in
the ECM memory (see page 05 −31).
If the malfunction does not recur, the CHK ENG goes off be dis-
appeared by turning the ignition switch to OFF, but the recorded
DTCs remain in the ECM memory.
S To check the DTCs, connect the hand −held tester to the
Data Link Connector 3 (DLC3) on the vehicle or connect
terminals TC and CG on the DLC3(DTCs will be displayd
on the multi −information display).
S The diagnosis system operates in normal mode during
normal vehicle use. In ”normal mode”, 2 trip detection log-
ic* is used to ensure accurate detection of malfunctions.
A ”check mode”, is also available to technicians as an op-
tion. In ”check mode”, 1 trip detection logic is used for sim-
ulating malfunction symptoms and increasing the sys-
tem’s ability to detect malfunctions, including intermittent
malfunctions (hand −held tester only)
(see page 05 −20).

05CDX−02
05 −1 0
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
PROBLEM SYMPTOMS TABLE
When the malfunction is not confirmed in the diagnostic trouble code check and the problem still can not be
confirmed in the basic inspection, proceed to this matrix chart and troubleshoot according to the numbered
order given below.
SymptomSuspected AreaSee page
Engine does not crank (Does not start)
1. Starter
2. Starter relay
3. Park/neutral position switch19 −1
1 9 −1
* 1
No initial combustion (Does not start)
1 . ECM power source circuit
2. Ignition coil assy
3. Fuel pump control circuit
4. Injector circuit05 −236
05 −1 67
05 −24 1
05 −1 36
No complete combustion (Does not start)
1. Ignition coil assy
2. Fuel pump control circuit
3. Injector circuit05 −1 67
05 −24 1
05 −1 36
Difficult to start (Engine cranks normally)
1. Starter signal circuit
2. Ignition coil assy
3. Spark plug
4. Compression
5. Injector circuit
6. Fuel pump control circuit05 −249
05 −1 67
1 8 − 3
1 4 −1
05 −1 36
05 −24 1
Difficult to start with cold engine
1. Starter signal circuit
2. Injector circuit
3. Ignition coil assy
4. Spark plug
5. Fuel pump control circuit05 −249
05 −1 36
05 −1 67
1 8 − 3
05 −24 1
Difficult to start with hot engine
1. Starter signal circuit
2. Injector circuit
3. Ignition coil assy
4. Spark plug
5. Fuel pump control circuit05 −249
05 −1 36
05 −1 67
1 8 − 3
05 −24 1
High engine idle speed (Poor idling)
1. ECM power source circuit
2. Park/neutral position switch
3. Back up power source circuit05 −236
* 1
05 −1 99
Low engine idle speed (Poor idling)
1. Park/neutral position switch
2. Injector circuit
3. Back up power source circuit
4. Fuel pump control circuit* 1
05 −1 36
05 −1 99
05 −24 1
Rough idling (Poor idling)
1. Mass air flow meter circuit
2. Vacuum sensor circuit
3. Injector circuit
4. Fuel pump control circuit
5. Ignition coil assy
6. Compression
7. Back up power source circuit05 −55
05 −61
05 −1 36
05 −24 1
05 −1 67
1 4 −1
05 −1 99
Hunting (Poor idling)
1. Mass air flow meter circuit
2. Vacuum sensor circuit
3. ECM power source circuit05 −55
05 −61
05 −236
Hesitation/Poor acceleration (Poor driveability)
1. Mass air flow meter circuit
2. Vacuum sensor circuit
3. Injector circuit
4. Ignition coil assy
5. Fuel pump control circuit05 −55
05 −61
05 −1 36
05 −1 67
05 −24 1
Muffler explosion after fire (Poor driveability)
1. Ignition coil assy
2. Spark plug
3. Injector circuit05 −1 67
1 8 − 3
05 −1 36

05CDT−02
ENGINE CONTROL SYSTEM Check Sheet
Customer’s Name
Date Vehicle
Brought in
License Plate No.
VIN
Production Date
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 lamp
(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)
05−6
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
CUSTOMER PROBLEM ANALYSIS CHECK

05−4
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
9 SYMPTOM SIMULATION
1 0 DTC CHECK (See page 05 −1 9)
AMalfunction code
BNo code
B GO TO STEP 12
A
11 DTC CHART (See page 05 −31)
GO TO STEP 14
12 BASIC INSPECTION (See page 05 −8)
AWrong parts not confirmed
BWrong parts confirmed
B GO TO STEP 17
A
1 3 PROBLEM SYMPTOMS TABLE (See page 05 −1 0)
AWrong circuit confirmed
BWrong parts confirmed
B GO TO STEP 17
A
1 4 CHECK ECM POWER SOURCE CIRCUIT (See page 05 −236)
1 5 CIRCUIT INSPECTION
AMalfunction not confirmed
BMalfunction confirmed
B GO TO STEP 18
A

05DVP−02
A8570 1
Sample:
Injector
Compensation Code
−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
05 −253
AVENSIS Supplement (RM 1045E)
ECD SYSTEM ( 1CD −FTV)(From September, 2003)
PRECAUTION
1. INJECTOR COMPENSATION CODE
(a) Since each injector has its own fuel injection characteris- tic, the ECM compensates this by slightly modifying injec-
tion duration in order to optimize fuel injection volume.
Compensating data for the optimum injection volume, in
the form of a 30 −digit −alphanumeric value, has been im-
printed on the head portion of each injector as the injector
compensation code.
(b) The injector compensation code will be required to regis- ter to the ECM when replacing the injectors or the ECM
(see page 05 −277).
(c) If an incorrect injector compensation code was registered
to the ECM, it may rattle the engine assembly or the en-
gine idling may become rough. In addition, it may become
a cause of engine failure or shorten the life of the engine.
2. DIFFICULT TO ENGINE START, ENGINE STALL OR BLACK SMOKE
(a) If the customer ’s problem description is applicable to one of the following problems, refer to the troubleshooting on
the pages shown below:
(1 ) Engine start difficulties, or engine stall, see page
05−502.
(2) Black smoke, see page 05 −512.