05CDV±01
A76858
Ignition Coil Assy
Camshaft Position Sensor VSV for EVAP
Combination Meter
DLC3
VSV for Intake Air Control ValveFuel Pump ECM
Knock Sensor Camshaft Timing Oil Control Valve
(OCV)
Injector
Crankshaft Position
Sensor
Park/Neutral Position Switch
(Only for A/T Models)Engine Coolant
Temperature Sensor
Mass Air Flow Meter
Throttle Body Assy
Accelerator Pedal Assy
Heated Oxygen Sensor
(Bank 2 Sensor 2)
Circuit Opening Relay
Heated Oxygen Sensor
(Bank 1 Sensor 2)
Heated Oxygen Sensor
(Bank 2 Sensor 1)
Heated Oxygen Sensor
(Bank 1 Sensor 1)
Manifold Absolute Pressure Sensor
Fuel Pump (For High Pressure)
Engine Room R/B No. 1Engine Room R/B No. 4Injector Driver (EDU)
Brake Booster
Pressure Sensor
Fuel Pressure Sensor
(For Low Pressure)
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±317
AVENSIS REPAIR MANUAL (RM1018E)
LOCATION
±
DIAGNOSTICS SFI SYSTEM (1AZ±FSE)
05±313
AVENSIS REPAIR MANUAL (RM1018E)
\f
*
1
CHK ENG
\b
P0300 *3
(05±420)
Random/Multiple Cylinder Misfire
Detected Open or short in engine wire
Connector connection
Vacuum hose connection
*2
P0301 *3
(05±420)Cylinder 1 Misfire Detected
Vacuum hose connection
Ignition system
Injector
Fuelpressure
*2
P0302 *3
(05±420)Cylinder 2 Misfire Detected
Fuel pressure
Mass air flow meter
Engine coolant temperature sensor
Compressionpressure
*2
P0303 *3
(05±420)Cylinder 3 Misfire Detected
Compression pressure
Valve clearance
Valve timing
PCV h ti
*2
P0304 *3
(05±420)Cylinder 4 Misfire Detected
PCV hose connection
PCV hose
ECM
*2
P0325
(05±429)Knock Sensor 1 Circuit (Bank 1
or Single Sensor) Knock sensor
Knock sensor (under±torqued or loose)
ECM
P0327
(05±429)Knock Sensor 1 Circuit Low In-
put (Bank 1 or Single Sensor) Short in knock sensor circuit
Knock sensor
ECM
P0328
(05±429)Knock Sensor 1 Circuit High In-
put (Bank 1 or Single Sensor) Open in knock sensor circuit
Knock sensor
ECM
P0335
(05±433)Crankshaft Position Sensor ºAº
Circuit Open or short in crankshaft position sensor circuit
Crankshaft position sensor
P0339
(05±433)Crankshaft Position Sensor ºAº
Circuit Intermittent
Crankshaft osition sensor
Signal plate (crankshaft position sensor plate No. 1)
ECM
P0340
(05±436)Camshaft Position Sensor ºAº
Circuit (Bank 1 or Single Sensor) Open or short in camshaft position sensor circuit
Camshaft position sensor
P0341
(05±436)Camshaft Position Sensor ºAº
Circuit Range/Performance
(Bank 1 or Single Sensor)
Camshaft osition sensor
Camshaft timing gear
Timing chain has jumped a tooth
ECM
P0351
(05±439)Ignition Coil ºAº Primary/Sec-
ondary Circuit
Ignition system
P0352
(05±439)Ignition Coil ºBº Primary/Sec-
ondary CircuitIgnition system
Open or short in IGF and IGT circuit from ignition coil with
igniter to ECM (ignition coil circuit 1 through 4)
P0353
(05±439)Ignition Coil ºCº Primary/Sec-
ondary Circuit
igniter to ECM (ignition coil circuit 1 through 4)
Ignition coil with igniter (ignition coil 1 through 4)
IG2 relay
P0354
(05±439)Ignition Coil ºDº Primary/Sec-
ondary Circuit ECM
P0420 *3
(05±446)
Catalyst System Efficiency Be-
low Threshold (Bank 1)Gas leakage in exhaust system
Heated oxygen sensor
P0430 *3
(05±446)
Catalyst System Efficiency Be-
low Threshold (Bank 2)Heated oxygen sensor
Three±way catalytic converter (inside exhaust manifold)
P0443
(05±449)Evaporative Emission Control
System Purge Control Valve Cir-
cuit Open of short in VSV circuit for EVAP
VSV for EVAP
ECM
P0500
(05±453)Vehicle Speed Sensor ºAº
Combination meter
Open or short in speed sensor circuit
Vehicle speed sensor
ECM
Skid control ECU
Clutch or brake slips or gear is broken
P0504
(05±455)Brake Switch Correlation
Short in stop light switch signal circuit
Stop light switch
ECM
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±305
AVENSIS REPAIR MANUAL (RM1018E)Hand±held Tester DisplayDiagnostic Note Normal Condition *
1Measurement Item/Range
(Display)
ELECT LOAD SIGElectrical load signal/
ON or OFFTail light switch ON: ON
Defogger switch ON: ON
STOP LIGHT SWStop light switch/
ON or OFFBrake pedal depressed: ON
Brake pedal released: OFF
PS OIL PRESS SWPower steering signal/
ON or OFF
While turning the steering wheel:
ON
While not turning the steering
wheel: OFF
The idle±up control is performed
when PS is ON.
PS SIGNALPower steering signal/
ON or OFFWhen the steering wheel is turned:
ONThis signal is usually ON status
until the IG switch is turned OFF.
SCV VSVVSV status for intake air control
valve/ ON or OFFVSV operation: ON
FUEL PUMP / SPDFuel pump/speed status/
ON/H or OFF/M,LIdling: ON
EVAP VSVVSV status for EVAP control/
ON or OFFVSV operating: ONVSV for EVAP is controlled by the
ECM (ground side duty control)
VVT CTRL B1VVT control status (bank 1)/
ON or OFFVVT system operation: ON
IGNITIONIgnition counter/ Min.: 0, Max.: 4000 to 400
CYL #1, #2, #3, #4Misfire ratio of the cylinder 1 to 4/
Min.: 0 %, Max.: 50 %0 %This item is displayed in only idling
MISFIRE RPMEngine RPM for first misfire range/
Min.: 0 rpm, Max.: 6,375 rpmMisfire 0: 0 rpm
FC TAUFuel Cut TAU: Fuel cut during very
light load/ ON or OFFFuel cut operating: ON
The fuel cut is being performed un-
der very light load to prevent the
engine combustion from becoming
incomplete.
CHECK MODECheck mode/ ON or OFFCheck mode ON: ONSee step 3
O2 RL B1 S2
Oxygen sensor rich lean bank 1
sensor 2:
Response time for oxygen sensor
output to switch from rich to lean/
Min.: 0 ms, Max.: 16,702.5 ms
Idling after warming up:
O2 RL B2 S2
Oxygen sensor rich lean bank 2
sensor 2:
Response time for oxygen sensor
output to switch from rich to lean/
Min.: 0 ms, Max.: 16,702.5 ms
Idling after warming u:
0 to 1,000 msec.
MIL ON RUN DIST
Distance since activation of check
engine warning light/
Min.: 0 km, Max.: 65,535 km
When there is no DTC: 0 km
FUEL PRESS
Fuel high pressure inside fuel de-
livery pipe/
Min.: 0 MPa, Max.: 819 MPaIdling: 8 to 13 MPa
Running without load (3,000
rpm): 9.5 to 10.5 MPa
*1: If no conditions are specifically stated for ºldlingº, it means the shift lever is at the N or P position, the A/C
switch is OFF and all accessory switches are OFF.
*
2: For A/T only
A59673
Inside
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
05±307
AVENSIS REPAIR MANUAL (RM1018E)
BASIC INSPECTION
When the malfunction code is not confirmed in the DTC check, troubleshooting should be carried out in all
the possible circuits considered as causes of the problems. In many cases, by carrying out the basic engi\
ne
check shown in the following flow chart, the location causing the problem can be found quickly and efficiently.
Therefore, using this check is essential in the engine troubleshooting.
1CHECK BATTERY VOLTAGE
NOTICE:
Carry out this check with the engine stopped and ignition switch OFF.
OKNG
Voltage11 V or moreLess than 11 V
NGCHARGE OR REPLACE BATTERY
OK
2CHECK IF ENGINE WILL CRANK
NGPROCEED TO PROBLEM SYMPTOMS TABLE ON PAGE 05±320
OK
3CHECK IF ENGINE STARTS
NGGO TO STEP 7
OK
4CHECK AIR FILTER
(a)Visually check that the air filter is not excessively dirty or oily.
NOTICE:
If necessary, clean the filter with compressed air. First blow
from the inside thoroughly, then blow from the outside of
the filter.
NGCLEAN OR REPLACE
OK
5CHECK IDLE SPEED (See page 14±181)
NGPROCEED TO PROBLEM SYMPTOMS TABLE ON PAGE 05±320
OK
05±326
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
2 PERFORM ACTIVE TEST BY HAND±HELD TESTER(OPERATE OCV)
(a) Connect the hand±held tester to the DLC3.
(b) Start the engine and warm it up.
(c) Turn the ignition switch ON and push the hand±held tester main switch ON.
(d) Select the item ºDIAGNOSIS / OBD/MOBD / ACTIVE TEST / VVT CTRL B1º.
(e) Check the engine speed when operating the OCV by the hand±held tester.
Standard:
Tester operationSpecified condition
OCV is OFFNormal engine speed
OCV is ONRough idle or engine stall
NG Go to step 4
OK
3 CHECK IF DTC OUTPUTS REOCCUR
(a) Clear the DTC.
(1) Operating the hand±held tester to erase the codes, or disconnecting the battery terminal or the
EFI and ETCS fuses for 60 seconds or more.
(b) Start the engine and warm it up.
(c) Drive the vehicle around for 10 minutes or more.
(d) Read output DTC using the hand±held tester.
Standard: No DTC output.
HINT:
*: DTCs P0011 or P0012 is output when a foreign object in engine oil is caught in some part of the system.
These codes will stay registered even if the system returns to normal after a short time. These foreign objects
are then captured by the oil filter, thus eliminating the source of the problem.
OK VVT SYSTEM OK *
NG
A67528
OCV Signal Waveform1 msec./Division 5 V/
Division
GND
(A)(A) (A)
E11
OC1 +OC1±
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
05±327
AVENSIS REPAIR MANUAL (RM1018E)
4INSPECT ECM(OCV SIGNAL)
(a)Inspection using the oscilloscope.
(b)During idling, check the waveform between the terminals
of the E11 ECM connector.
Standard:
Symbols (Terminal No.)Specified condition
OC1+ (E11±16) ± OC1± (E11±15)Correct waveform is as shown
HINT:
The waveform frequency (A) is lengthened as the engine speed
becomes higher.
NGCHECK AND REPLACE ECM (See page 01±32)
OK
5 INSPECT OIL CONTROL VALVE FILTER
NG REPLACE OIL CONTROL VALVE FILTER
OK
6 INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY(OCV) (See page 10±39)
OK Go to step 8
NG
7 REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSY(OCV)
GO
8INSPECT CAMSHAFT TIMING GEAR ASSY (See page 14±240)
OK Go to step 10
NG
05±328
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
9REPLACE CAMSHAFT TIMING GEAR ASSY (See page 14±240)
GO
10CHECK BLOCKAGE(OCV, OIL CHECK VALVE AND OIL HOLE)
NGREPAIR OR REPLACE
OK
11CHECK IF DTC OUTPUTS REOCCUR
(a)Clear the DTC. (1)Operating the hand±held tester to erase the codes, or disconnecting the batter\
y terminal or the
EFI and ETCS fuses for 60 seconds or more.
(b)Start the engine and warm it up.
(c)Drive the vehicle around for 10 minutes or more.
(d)Read output DTC using the hand±held tester.
Standard: No DTC output.
HINT:
*: DTCs P0011 or P0012 is output when a foreign object in engine oil is caught in so\
me part of the system.
These codes will stay registered even if the system returns to normal after a\
short time. These foreign objects
are then captured by the oil filter, thus eliminating the source of the problem.
OKVVT SYSTEM OK
NG
CHECK AND REPLACE ECM (See page 01±32)
A71007
Air Flow Meter Crankshaft Position Sensor
Actual Valve TimingCorrection Target Valve Timing
Feedback
Duty Control ECM
Camshaft Timing
Oil Control
Valve (OCV)
Vehicle Speed Signal Engine Coolant Temp. SensorThrottle Position Sensor
Camshaft Position Sensor
05±322
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0010 CAMSHAFT POSITION ºAº ACTUATOR
CIRCUIT (BANK 1)
HINT:
This is the procedure of oil control valve (OCV).
CIRCUIT DESCRIPTION
The VVT system controls the intake camshaft to provide the optimal valve timing for every driving condition. This control
is performed based on the signals, such conditions as intake air volume, throttle position and engine coolant tempera-
ture.
The ECM controls the oil control valve (OCV), based on the signals output from the sensors. The VVT controller regu-
lates the intake camshaft angle using oil pressure through the OCV. As result, the relative position between the camshaft
and the crankshaft becomes optimal, and the engine torque improves, fuel economy improves, exhaust emissions de-
crease under overall driving conditions. Also, the ECM detects the actual valve timing using the signals from the cam-
shaft position sensor and the crankshaft position sensor, and performs feedback control. This is how target valve timing
is achieved by the ECM.
DTC No.DTC Detection ConditionTrouble Area
P0010Open or short in OCV circuit
Open or short in OCV circuit
OCV
ECM
05CDY±01