2005 TOYOTA AVENSIS Ocv

±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
05±21
AVENSIS REPAIR MANUAL (RM1018E)
VTA (E13 ± 21) ± E2 (E13 ± 28)
L±W ±BRIG switch ON, throttle valve fully closed0.3 to 1.0
VTA (E13 ± 21) ± E2 (E13 ± 28)L±W ±BRIG switch ON, throttle valve fully open3.2 to 4.9
#10 (E13 ± 1) ± E01 (E13 ± 7)B±R ±W±BIG switch ON8 to 14
#20 (E13 ± 2) ± E01 (E13 ± 7)Y ±W±BIG switch ON8 to 14
#30 (E13 ± 3) ± E01 (E13 ± 7)W ±W±BIG switch ON8 to 14
#40 (E13 ± 4) ± E01 (E13 ± 7)B ±W±BIG switch ON8 to 14
IGT1 (E13 ± 8) ± E1 (E12 ± 7)R±W ±BRIdlingPulse generation
(See page 05±103)
IGT2 (E13 ± 9) ± E1 (E12 ± 7)P ± BRIdlingPulse generation
(See page 05±103)
IGT3 (E13 ± 10) ± E1 (E12 ± 7)LG±B ± BRIdlingPulse generation
(See page 05±103)
IGT4 (E13 ± 11) ± E1 (E12 ± 7)L±Y ± BRIdlingPulse generation
(See page 05±103)
IGF (E13 ± 23) ± E1 (E12 ± 7)W±R ± BRIG switch ON4.5 to 5.5
IGF (E13 ± 23) ± E1 (E12 ± 7)W±R ± BRIdlingPulse generation
(See page 05±103)
RSO (E13 ± 5) ± E01 (E13 ± 7)G±R ± W±BIG switch ON9 to 14
OCV+ (E13 ± 15) ± OCV± (E13 ± 14)W±G ± Y±BIG switch ONPulse generation
(See page 05±112)
FKN+ (E12 ± 1) ± FKN± (E12 ± 2)B ± WIdlingPulse generation
(See page 05±81)
ELS2 (E9 ± 13) ± E1 (E12 ± 7)G ± BRDefoger switch ON9 to 14
ELS2 (E9 ± 13) ± E1 (E12 ± 7)G ± BRIG switch ONBelow 3.0
MREL (E9 ± 8) ± E1 (E12 ± 7)GR ± BRIG switch ON9 to 14
IGSW (E9 ± 9) ± E1 (E12 ± 7)B±W ± BRIG switch ON9 to 14
TC (E9 ± 20) ± E1 (E12 ± 7)W±L ± BRIG switch ON9 to 14
SIL (E9 ± 18) ± E1 (E12 ± 7)W±G ± BRConnect hand±held tester to DLC3Pulse generation

05±18
±
DIAGNOSTICS SFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E) P0505*
3
(05±100)Idle Control System Malfunction


Open or short in ISC valve circuit

ISC valve is stuck or closed

PCV hose

A/C switch circuit

Air induction system

ECM

P1300
(05±103)Igniter Circuit Malfunction (No. 1)

Ignition system

Open or short in IGF or IGT1 circuit from No. 1 ignition coil
with igniter to ECM

No. 1 ignition coil with igniter

ECM

P1305
(05±103)Igniter Circuit Malfunction (No. 2)

Ignition system

Open or short in IGF or IGT2 circuit from No. 2 ignition coil
with igniter to ECM

No. 2 ignition coil with igniter

ECM

P1310
(05±103)Igniter Circuit Malfunction (No. 3)

Ignition system

Open or short in IGF or IGT3 circuit from No. 3 ignition coil
with igniter to ECM

No. 3 ignition coil with igniter

ECM

P1315
(05±103)Igniter Circuit Malfunction (No. 4)

Ignition system

Open or short in IGF or IGT4 circuit from No. 4 ignition coil
with igniter to ECM

No. 4 ignition coil with igniter

ECM

P1335
(05±84)Crankshaft Position Sensor Cir-
cuit Malfunction (During engine
running)
Open or short in crankshaft position sensor circuit

Crankshaft position sensor

Crank angle sensor plate

ECM


P1346
(05±111)VVT Sensor/Camshaft Position
Sensor Circuit Range/Perfor-
mance Problem (Bank 1)
Mechanical system (Timing chain has janped a tooth, chain
stretched)

ECM

P1349
(05±112)VVT System Malfunction (Bank
1)

Valve timing

OCV

VVT controller assembly

ECM

P1520*2
(05±115)
Stop Light Switch Circuit Mal-
function
Open or short in stop light switch signal circuit

Stop light switch

ECM

P1600
(05±119)ECM BATT Malfunction
Open in back up power source circuit

ECM
P1656
(05±122)OCV Circuit Malfunction (Bank
1)
Open or short in OCV circuit

OCV

ECM

*1:  ... CHK ENG is illuminated.
... CHK ENG is not illuminated.
*
2: Only for A/T models.
*
3: For European spec. only

A63991
ECM
C2
Camshaft Timing
Oil Control Valve
2
1
Y±B
W±G
OCV+
OCV±
15
14
E13
E13
05±112
±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
DTCP1349VVT SYSTEM MALFUNCTION (BANK 1)
CIRCUIT DESCRIPTION
VVT system controls the intake valve timing to proper timing in response to\
driving condition.
The ECM controls the oil control valve (OCV) to make the intake valve timing properly, oil pressure regulated
by the OCV is supplied to the valiable valve timing (VVT) controller, and then the VVT controller changes
relative position between the camshaft and the crankshaft.
DTC No.DTC Detecting ConditionTrouble Area
P1349
Condition (a) or (b) continues with engine speed at 400 to
4,000 rpm after the engine is warmed up
(a)Valve timing does not change from the current valve timing
(b)Current valve timing is fixed
Valve timing

OCV

VVT controller assembly

ECM
WIRING DIAGRAM
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.
1CHECK VALVE TIMING (See page 14±49)
NGADJUST VALVE TIMING(See page 14±49)
OK
05C6F±01

A18294
OCV+OCV±
ECM Connector
E13
A58701A58701
OCV Signal Waveform1 m sec./Division 5 V/
Division
GND
(A)(A)(A)
±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
05±113
AVENSIS REPAIR MANUAL (RM1018E)
2PERFORM ACTIVE TEST BY HAND±HELD TESTER(OPERATE OF OCV)
(a)Start the engine and warm it up.
(b)Connect the hand±held tester and select VVT from the ACTIVE TEST menu\
.
(c)Check the engine speed while operating the OCV by the hand±held teste\
r.
OCV is OFF: Normal engine speed
OCV is ON: Rough idle or engine stall
HINT:
DTC P1349 is also output when a foreign object is detected in some parts\
of the system in engine oil, and
then the system returns to normal in a short time. There is also no problem \
on the VVT as the oil filter should
catch the foreign object in engine oil.
OKVVT SYSTEM OK
NG
3INSPECT ECM(CHECK VOLTAGE)
(a)Turn the ignition switch ON.
(b)Check the waveform between terminals OCV+ and OCV± of the E13 ECM connector.
HINT:

The correct waveform is as shown on the left.

The waveform frequency (A) becomes longer as the en-
gine speed becomes higher.
NGCHECK AND REPLACE ECM (See page 01±32)
OK
4INSPECT CAMSHAFT TIMING GEAR ASSY (See page14±64)
NG REPLACE VVT CONTROLLER ASSEMBLY, AND THEN GO TO NEXT STEP
OK

05C6N±01
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
05±161
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Parameters listed in the chart may not be exactly the same as your readings 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.



\f \b
 *1
CHK ENG 
P0010/39 *4 (05±169)Camshaft Position ºAº Actuator
Circuit (Bank 1)
Open or short in oil control valve (OCV) circuit

Oil control valve

ECM

P0011/59 *4
(05±174)Camshaft Position ºAº ±Timing
Over±Advanced or System Per-
formance (Bank 1)
Valve timing

Oil control valve (OCV)

Camshaft timing gear assy


P0012/59 *4
(05±174)Camshaft Position ºAº ±Timing
Over± Retarded (Bank 1)
Camshaft timing gear assy

ECM


P0016/18 *4
(05±181)Crankshaft Position ± Camshaft
Position Correlation (Bank 1
Sensor A)
Mechanical system (Timing chain has jumped a tooth, chain
stretched)

ECM


P0031/21
*2, *4
(05±182)Oxygen (A/F) Sensor Heater
Control Circuit Low (Bank 1 Sen-
sor 1)


P0032/21
*2, *4
(05±182)Oxygen (A/F) Sensor Heater
Control Circuit High (Bank 1
Sensor 1)

Open or short in heater circuit of A/F sensor

A/F sensor heater

P0051/28
*2, *4
(05±182)Oxygen (A/F) Sensor Heater
Control Circuit Low (Bank 2 Sen-
sor 1)
A/F sensor heater

A/F relay

ECM


P0052/28
*2, *4
(05±182)Oxygen (A/F) Sensor Heater
Control Circuit High (Bank 2
Sensor 1)


P0100/31
(05±186)Mass Air Flow Circuit
Ohti ifltiit

P0102/31(05±186)Mass or volume Air Flow Circuit
Low Input
Open or short in mass air flow meter circuit

Mass air flow meter

ECM

P0103/31
(05±186)Mass or volume Air Flow Circuit
High Input
ECM

P0110/24(05±194)Intake Air Temperature Circuit
O h ti itk it i it


P0112/24(05±194)Intake Air Temperature Circuit
Low Input
Open or short in intake air temp. sensor circuit

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

ECM


P0113/24
(05±194)Intake Air Temperature Circuit
High Input
ECM


P0115/22(05±199)Engine Coolant Temperature Cir-
cuit
Open or short in engine coolant temperature sensor circuit

P0117/22(05±199)Engine Coolant Temperature Cir-
cuit Low Input
Open or short in engine coolant temperature sensor circuit

Engine coolant temperature sensor

ECM

P0118/22
(05±199)Engine Coolant Temperature Cir-
cuit High Input
ECM

P0120/41 (05±204)Throttle/Pedal Position Sensor/
Switch ºAº Circuit
Throttle position sensor (built in throttle body)

ECM

P0122/41
(05±204)Throttle/Pedal Position Sensor/
Switch ºAº Circuit Low Input

Throttle position sensor (built in throttle body)

Short in VTA1 circuit

Open in VC circuit

ECM



A71007
MassAir 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
± DIAGNOSTICSSFI SYSTEM (1AZ±FE)
05±169
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0010/39 CAMSHAFT POSITION ºAº ACTUATOR
CIRCUIT (BANK 1)
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 oil control valve (OCV). As result, the relative position
between the camshaft and the crankshaft becomes optimal, and the engine torque improves, fuel economy improves,
exhaust emissions decrease under overall driving conditions. Also, the ECM detects the actual valve timing using the
signals from the camshaft 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
P0010/39Open or short in oil control valve (OCV) circuit

Open or short in oil control valve circuit

Oil control valve

ECM
05C6R±01

A59779
C2
Camshaft Timing Oil
Control Valve1
2 ECM
W±G OC1+
14
Y±B OC1±
E13
15
E13
05±170
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
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 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.
When using hand±held tester:
1PERFORM ACTIVE TEST BY HAND±HELD TESTER(OCV OPERATION)
(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 B1 or V\
VT CTRL B2º.
(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
OKCHECK FOR INTERMITTENT PROBLEMS (See page 05±149)
NG
2INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY (See page 10±20)
NG REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSY
OK

A79111
OCV Signal Waveform1 msec./Division 5 V/
Division
GND
(A)(A) (A)
E13
OC1 +OC1±
A54386
Wire Harness Side
C2
Camshaft Timing Oil Control Valve
Connector
A65743ECM Connector
E13
OC1+OC1±
±
DIAGNOSTICS SFI SYSTEM(1AZ±FE)
05±171
AVENSIS REPAIR MANUAL (RM1018E)
3INSPECT ECM(OCV SIGNAL)
(a)Inspection using the oscilloscope.
(b)During idling, check the waveform between the terminals
of the E13 ECM connector.
Standard:
Symbols (Terminal No.)Specified condition
OC1+ (E13±15) ± OC1± (E13±14)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
4 CHECK HARNESS AND CONNECTOR(ECM ± OCV)
(a) Disconnect the camshaft timing oil control valve connec- tor.
(b) Disconnect the E13 ECM connector.
(c) Check for continuity between the wire harness side con- nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
Oil control valve (C2±1) ± OC1+ (E13±15)ContinuityOil control valve (C2±2) ± OC1± (E13±14)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
Oil control valve (C2±1) or OC1+ (E13±15) ± Body groundNo continuityOil control valve (C2±2) or OC1± (E13±14) ± Body groundNo continuity
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
CHECK FOR INTERMITTENT PROBLEMS