2005 TOYOTA AVENSIS Circuit

05±174
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0011/59CAMSHAFT POSITION ºAº ±TIMING OVER± ADVANCED OR SYSTEM PERFORMANCE
(BANK 1)
DTCP0012/59CAMSHAFT POSITION ºAº ±TIMING OVER± RETARDED (BANK 1)
CIRCUIT DESCRIPTION
Refer to DTC P0010/39 on page 05±169.
DTC No.DTC Detection ConditionTrouble Area
P0011/59
Condition (a) or (b) continues after engine is warmed up and
engine speed at 400 to 4,000 rpm (Problem of the advanced oil
control valve.):
(a)Valve timing does not change from current valve timing
(b)Current valve timing is fixed

Valve timing

Oil control valve
P0012/59
Condition (a) or (b) continues after engine is warmed up and
engine speed at 400 to 4,000 rpm (Problem of the retarded oil
control valve.):
(a)Valve timing does not change from current valve timing
(b)Current valve timing is fixed
Oil control valve

Camshaft timing gear assy

ECM
WIRING DIAGRAM
Refer to DTC P0010/39 on page 05±169.
INSPECTION PROCEDURE
HINT:
Advanced timing over
(Valve timing is out of specified range)P0011/59
Retarded timing over
(Valve timing is out of specified range)P0012/59

If DTC ºP0011/59 or P0012/59º is displayed, check VVT system circuit.

Read freeze frame data using the hand±held tester. Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, it is useful for deter\
mining 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.
When using hand±held tester:
1CHECK VALVE TIMING (See page 14±139)
NGADJUST VALVE TIMING (See page 14±139)
OK
05C6S±01

±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
05±155
AVENSIS REPAIR MANUAL (RM1018E)
(b)Clearing the DTCs using the hand±held tester
(1)Connect the hand±held tester to DLC3.
(2)Turn the ignition switch ON.
(3)When operating hand±held tester to erase thecodes, the DTCs and freeze frame data will be
erased. (See the hand±held tester's instruction
book for operating instructions.)
(c)Clearing the DTCs not using the hand±held tester: (1)Disconnecting the battery terminal or remove theEFI fuse for more than 60 seconds.
4.FAIL±SAFE CHART
If any of the following codes are recorded, the engine ECM enters the fa\
il±safe mode.
DTC No.Fail±Safe OperationFail±Safe Deactivation Conditions
P0031/21
P0032/21
P0051/28
P0052/28
The heater circuit in which the abnormality is detected is
turned offIgnition switch OFF
P0100/31
P0102/31
P0103/31Ignition timing is calculated from engine speed and a throttle
angleIf the ECM detects ºPassº condition, the ECM will return to
ºNomal modeº.
P0110/24
P0112/24
P0113/24
Intake air temp. is fixed at 20 C (68 F)If the ECM detects ºPassº condition, the ECM will return to
ºNomal modeº.
P0115/22
P0117/22
P0118/22
Engine coolant temp. is fixed at 80  \bIf the ECM detects ºPassº condition, the ECM will return to
ºNomal modeº.
P0120/41
P0122/41
P0123/41
Fuel cut intermittently while idlingReturned to normal condition and ignition switch OFF
P0325/52
P0327/52
P0328/52
Max. timing retardationIgnition switch OFF
P0351/14
P0352/15
P0353/14
P0354/15
Fuel cutIf the ECM detects ºPassº condition, the ECM will return to
ºNomal modeº.
5.CHECK FOR INTERMITTENT PROBLEMS
Hand±held tester only:
By putting the vehicle's engine ECM in check (test) mode, 1 trip detection logic is possible instead of 2 trip
detection logic, and sensitivity to detect faults is increased. This makes it eas\
ier to detect intermittent prob-
lems.
(a)Clear the DTC. (See step 3.)
(b)Set the check (test) mode. (See step 3.)
(c)Perform a simulation test. (See page 01±22)
(d)Check the connector and terminal. (See page 01±32)
(e)Wiggle the harness and the connector. (See page 01±32)

05±156
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
6. DATA LIST
HINT:
Using the DATA LIST displayed by the hand±held tester, you can read the value of the switches, sensors,
actuators and so on without parts removal. Reading the DATA LIST as a first step of troubleshooting is one
of the method to shorten diagnostic time.
NOTICE:
The values given below for ºNormal Conditionº are representative values. A vehicle may still be nor-
mal even if the measured values are a little different from those listed here. Do not decide whether
a part is faulty or not solely according to the ºNormal Conditionº here.
(a) Warm up the engine.
(b) Turn the ignition switch OFF.
(c) Connect the Hand±held tester to the DLC3.
(d) Turn the ignition switch ON.
(e) Push the ºONº button of the hand±held tester.
(f) Select the item ºDIAGNOSIS / OBD/MOBD / DATA LIST / ALLº.
(g) According to the display on tester, read the ºDATA LISTº.
Hand±held Tester DisplayMeasurement Item/Range
(Display)Normal ConditionDiagnostic Note
INJECTORInjection period/
Min.: 0 ms, Max.: 32.64 msIdling: 1.92 to 3.37 ms

IGN ADVANCEIgnition timing advance/
Min.: ±64 deg., Max.: 63.5 deg.Idling: BTDC 5 to 15 deg.

CALC LOADCalculated load by engine ECM/
Min.: 0 %, Max.: 100 %

Idling: 3.3 to 26.7 %

Running without load (2,500
rpm):
12.0 to 14.7 %


MAFAir flow rate from MAF sensor/
Min.: 0 gm/s, Max.: 655 gm/s

Idling:
M/T 0.54 to 4.33 gm/sec.
A/T 0.58 to 4.67 gm/sec.

Runnning without load (2,500
rpm):
3.33 to 9.17 gm/sec.


ENGINE SPDEngine Speed/
Min.: 0 rpm, Max.: 16,383 rpmIdling:
M/T 650 to  rpm
A/T 550 to  rpm


COOLANT TEMPCoolant temperature/
Min.: ±40 C, Max.: 140 CAfter warming up:
80 to 95C (176 to 203
If the value is º±40 Cº or º140
Cº i it i
INTAKE AIRIntake air temperature/
Min.: ±40 C, Max.: 140 CEquivalent to ambient temp.
Cº, sensor circuit is open or
shorted.
THROTTLE POSAbsolute throttle position sensor/
Min.: 0 %, Max.: 100 %
Throttle fully closed: 6 to 16 %

Throttle fully open: 64 to 98 %Read the value with ignition switch
ON (Do not start engine)
CTP SWClosed throttle position switch/
ON or OFF
Throttle fully closed: ON

Throttle open: OFF

VEHICLE SPDVehicle speed/
Min.: 0 km/h, Max.: 255 km/hVehicle stopped: 0 km/h (0 mph)

O2S B1 S2
Oxygen sensor output voltage of
the bank 1 sensor 2/
Min.: 0 V, Max.: 1.275 V
Idling: 0.1 to 0.9 V

AFS B1 S1
A/F sensor output voltage of the
bank 1 sensor 1/
Min.: 0 V, Max.: 7.999 V
Idling: 2.8 to 3.8 V

±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
05±159
AVENSIS REPAIR MANUAL (RM1018E)
BASIC INSPECTION
When the malfunction is not confirmed in the DTC check, troubleshooting \
should be carried out in all the
possible circuits considered as causes of the problem. In many cases, by carrying out the basic engine 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.
Reference:
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±168
OK
3CHECK IF ENGINE STARTS
NGGO TO STEP 6
OK
4CHECK AIR FILTER
(a)Visually check that the air filter is not excessively dirty or oily.
HINT:
If necessary, clean the filter with compressed air. First blow from the inside thoroughly, then blow from the
outside of filter. NGREPAIR OR REPLACE
OK
5CHECK IDLE SPEED (See page 14±101)
NGPROCEED TO PROBLEM SYMPTOMS TABLE ON PAGE 05±168
OK

05±122
±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
DTCP1656OCV CIRCUIT MALFUNCTION (BANK 1)
CIRCUIT DESCRIPTION
Refer to DTC P1349 on page 05±112.
DTC No.DTC Detecting ConditionTrouble Area
P1656Open or short in oil control valve (OCV) circuit

Open or short in OCV circuit

OCV

ECM
WIRING DIAGRAM
Refer to DTC P1349 on page 05±112.
INSPECTION PROCEDURE
HINT:
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 determi\
ning whether the vehicle was running
or stopped, the engine was warmed up or not, the air±fuel ratio was lea\
n or rich, etc. at the time of the mal-
function.
1PERFORM ACTIVE TEST BY HAND±HELD TESTER(OCV OPERATION)
(a)Start the engine and warm it up.
(b)Connect the hand±held tester and select the VVT on the ACTIVE TEST me\
nu.
(c)Check the engine speed while operating the OCV by using the hand±held\
tester. Result:
VVT system is OFF (OCV is OFF): Normal engine speed
VVT system is ON (OCV is ON): Rough idle or engine stalled
OKCHECK FOR INTERMITTENT PROBLEMS(See page 05±5)
NG
2INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY (See page 10±3)
NG REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSY
OK
3INSPECT ECM(CHECK VOLTAGE) (See page 05±20)
NG CHECK AND REPLACE ECM (See page 01±32)
OK
05B4A±02

A63955
GND
CH1
(G2+)
CH2
(NE+) GND
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
05±229
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0340/12CAMSHAFT POSITION SENSOR ºAº
CIRCUIT (BANK 1 OR SINGLE SENSOR)
DTCP0341/12CAMSHAFT POSITION SENSOR ºAº CIRCUIT RANGE/PERFORMANCE (BANK 1
OR SINGLE SENSOR)
CIRCUIT DESCRIPTION
The camshaft position sensor (G signal) consists of a magnet, iron core a\
nd pickup coil.
The G signal rotor has 3 teeth on its outer circumference and is install\
ed on the intake camshaft.
When the camshafts rotate, the protrusion on the signal plate and the air gap on the pickup coil changes,
causing fluctuations in the magnetic field and generating an electromoti\
ve force in the pickup coil.
The NE signal plate (crankshaft position sensor plate) has 34 teeth an\
d is installed to the crankshaft. The
NE signal sensor generates 34 signals at every engine revolution. The EC\
M detects the crankshaft angle
and the engine revolution based on the NE signals, and the cylinder and the\
angle of the VVT based on the
combination of the G and NE signals.
DTC No.DTC Detection ConditionTrouble Area
P0340/12

No camshaft position sensor signal to ECM during cranking
(1 trip detection logic)
Open or short in camshaft position sensor circuit
ChftitiP0340/12(1 tri detection logic)

No camshaft position sensor signal to ECM with engine
speed 600 rpm or more (1 trip detection logic)
Camshaft position sensor

Camshaft timing pulley

Timingchainhasjumpedatooth
P0341/12While crankshaft rotates twice, camshaft position sensor signal
is input to ECM 12 times or more (1 trip detection logic)
Timing chain has jumped a tooth

ECM
Reference: Inspection using the oscilloscope.
HINT:
The correct waveform is as shown on the left.
ItemContents
TerminalCH1: G2+ ± NE±
CH2: NE+ ± NE±
Equipment Set5V/DIV, 20ms/DIV
ConditionDuring cranking or idling
WIRING DIAGRAM
Refer to DTC P0335/12, 13 and P0339/13 on page 05±226.
INSPECTION PROCEDURE
HINT:
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 determi\
ning whether the vehicle was running
or stopped, the engine was warmed up or not, the air±fuel ratio was lea\
n or rich, etc. at the time of the mal-
function.
05C71±01

±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
05±111
AVENSIS REPAIR MANUAL (RM1018E)
DTCP1346VVT SENSOR/CAMSHAFT POSITION
SENSOR CIRCUIT RANGE/PERFORMANCE
PROBLEM (BANK 1)
CIRCUIT DESCRIPTION
Refer to DTC P0335 on page 05±84
DTC No.Detection ItemTrouble Area
P1346Deviation in crankshaft position sensor signal and camshaft
position sensor signal (2 trip detection logic)
Mechanical system (Timing chain has jumped a tooth, chain
stretched)

ECM
WIRING DIAGRAM
Refer to DTC P0335 on page 05±84
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand±held tester. Freeze frame data records the engine conditions when
the malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was run-
ning or stopped, the engine was warmed up or not, the air±fuel ratio \
was lean or rich, etc. at the time of the
malfunction.
1CHECK VALVE TIMING (See page 14±49)
NGADJUST VALVE TIMING(See page 14±49)
OK
CHECK AND REPLACE ECM (See page 01±32)
0506C±04

±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
05±381
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0134OXYGEN SENSOR CIRCUIT NO ACTIVITY
DETECTED (BANK 1 SENSOR 1)
DTCP0154OXYGEN SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 2 SENSOR 1)
CIRCUIT DESCRIPTION
Refer to DTC P0130 on page 05±363.
DTC No.DTC Detection ConditionTrouble Area
P0134
P0154
After engine is warmed up, heated oxygen sensor (sensor 1)
output does not indicate RICH (
0.45 V) even once when
conditions (a), (b), (c) and (d) continue for at least 65 sec.:
(a)Engine speed: 1,400 rpm or more
(b)Vehicle speed: 130 km/h (81 mph)
(c)Throttle valve is not fully closed
(d)180 sec. or more after starting engine

Open or short in heated oxygen sensor (bank 1, 2 sensor 1)
circuit

Heated oxygen sensor (bank 1, 2 sensor 1)

Heated oxygen sensor heater (bank 1, 2 sensor 1)

EFI relay

Air induction system

Fuel pressure

PCV hose connection

PCV valve and hose

Injector

Gas leakage in exhaust system

ECM
HINT:

&$"!$ !%\b \f!\b
\f'%&!&%&$&""!$ &"'&#'&("&"
&&")*!%!%"$! 
%!%"$ $" & ºDIAGNOSIS / OBD/MOBD / DATA LIST / ALLº
&"'&#'&("&"&&")*!%!%"$%%%&!\b &&")*!%!%"$$'&
*"#!"$%"$&

Bank 1 refers to the No. 1 and No. 4 cylinders.

Bank 2 refers to the No. 2 and No. 3 cylinders.

Sensor 1 refers to the sensor closest to the engine assembly.
WIRING DIAGRAM
Refer to DTC P0130 on page 05±363.
INSPECTION PROCEDURE
HINT:
Hand±held tester only:
Narrowing down the trouble area is possible by performing the ºA/F CONTROLº ACTIVE TEST (heated oxy-
gen sensor or other trouble areas can be distinguished).
(a) Perform ACTIVE TEST using the hand±held tester (A/F CONTROL).
HINT:
ºA/F CONTROLº is an ACTIVE TEST which changes the injection volume\
±12.5 % or +25 %.
(1) Connect the hand±held tester to the DLC3 on the vehicle.
(2) Turn the ignition switch ON.
(3) Warm up the engine by running the engine at 2,500 rpm for approximately 9\
0 sec.
(4) Select the item ºDIAGNOSIS / OBD/MOBD / ACTIVE TEST / A/F CONTROLº\
.
(5) Perform ºA/F CONTROLº with the engine in an idle condition (press\
the right or left button).
Result:
Heated oxygen sensor reacts in accordance with increase and decrease of injection volume:
+25 %
rich output: More than 0.55 V
±12.5 %
lean output: Less than 0.4 V
05CKB±01