2005 TOYOTA AVENSIS oil pressure

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

F45141
Skid Control ECU
with Actuator
12
S1
VCM 11
PMC
27E2
S1
S1
STP 37
S1
Battery FL MAIN O1
Oil Pressure Sensor
1
Y±G
1
4B
1
2 2
*1: 1AZ±FSE
*2: 1CD±FTV3
12 33ALT Engine Room R/B No.3
B (*2)
B±G (*1)1
4D Engine Room J/B No.4B±G (*1)
B±L (*2) W (*2) R±W (*3)1 2Y±R
GR
R±W (*4)R±W (*3)
R±W (*4)
11 1 2 2
22DL DA
DA DNDM IR1
6
IE3
11
IE3
2
IR1
ED1 1Driver Side J/B
S13 Stop Light SW
G±W (*3)G±W (*3)G±W (*4) G±W (*4) G±W
To
Stop
Light
B±G (*1)
STOP
*3: LHD
*4: RHDALT 05±812
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC C1246/53 MALFUNCTION IN MASTER CYLINDER
PRESSURE SENSOR
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1246/53
When any of the following 1 through 3 is detected:
1. The voltage of sensor signal is out of range (less than
0.3 V, more than 4.7 V).
2. The sensor supply voltage is out of range (above 5.6 V,
below 4.4 V).
3. The sensor signal offset value is out of range.
4. Gradient of sensor signal is not within allowed range.

Master cylinder pressure sensor

Master cylinder pressure sensor circuit
WIRING DIAGRAM
05787±02










D25472
SST
SST
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))05±873
AVENSIS REPAIR MANUAL (RM1018E)
9. HYDRAULIC TEST
(a) Measure the line pressure.
NOTICE:

Do the test at normal operation ATF temperature 50 to 80
C (122 to 176
F).

The line pressure test should always be carried out in pairs. One technician should observe
the conditions of wheels or wheel stopper outside the vehicle while the other is doing the test.

Be careful to prevent SST's hose from interfering with the exhaust pipe.
(1) Warm up the ATF.
(2) Remove the test plug on the rear side of the trans-
axle case and connect SST.
SST 09992±00095 (09992± 00231, 09992±00271)
(3) Fully apply the parking brake and chock the 4
wheels.
(4) Connect the hand±held tester to DLC3.
(5) Start the engine and check idling speed.
(6) Keep your left foot pressing firmly on the brake ped-
al and shift into D range.
(7) Measure the line pressure when the engine is idling.
(8) Depress the accelerator pedal all the way down.
Quickly read the highest line pressure when engine
speed reaches stall speed.
(9) In the same way, do the test in R range.
Specified line pressure:
ConditionD range kPa (kgf / cm2, psi)R range kPa (kgf / cm2, psi)
Idling372 to 412 (3.8 to 4.2, 54 to 60)672 to 742 (6.9 to 7.6, 98 to 108)
Stall931 to 1,031 (9.5 to 10.5, 135 to 150)1,768 to 1,968 (18.0 to 20.1, 256 to 285)
Evaluation:
ProblemPossible cause
If the measured values at all ranges are higher
Line pressure control solenoid (SLT) defective

Regulator valve detective
If the measured values at all ranges are lower

Line pressure control solenoid (SLT) defective

Regulator valve detective

Oil pump defective
If pressure is low in the D range only
D range circuit fluid leak

Forward clutch defective
If pressure is low in the R range only

R range circuit fluid leak

Direct clutch defective

1st & reverse brake defective







D25472
SST
SST
05±928± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))
AVENSIS REPAIR MANUAL (RM1018E)
9. HYDRAULIC TEST
(a) Measure the line pressure.
NOTICE:

Do the test at normal operation ATF temperature 50 to 80
C (122 to 176
F).

The line pressure test should always be carried out in pairs. One technician should observe
the conditions of wheels or wheel stopper outside the vehicle while the other is doing the test.

Be careful to prevent SST's hose from interfering with the exhaust pipe.
(1) Warm up the ATF.
(2) Remove the test plug on the rear side of the trans-
axle case and connect SST.
SST 09992±00095 (09992± 00231, 09992±00271)
(3) Fully apply the parking brake and chock the 4
wheels.
(4) Connect the hand±held tester to DLC3.
(5) Start the engine and check idling speed.
(6) Keep your left foot pressing firmly on the brake ped-
al and shift into D range.
(7) Measure the line pressure when the engine is idling.
(8) Depress the accelerator pedal all the way down.
Quickly read the highest line pressure when engine
speed reaches stall speed.
(9) In the same way, do the test in R range.
Specified line pressure:
ConditionD range kPa (kgf / cm2, psi)R range kPa (kgf / cm2, psi)
Idling372 to 412 (3.8 to 4.2, 54 to 60)672 to 742 (6.9 to 7.6, 98 to 108)
Stall931 to 1,031 (9.5 to 10.5, 135 to 150)1,768 to 1,968 (18.0 to 20.1, 256 to 285)
Evaluation:
ProblemPossible cause
If the measured values at all ranges are higher
Shift solenoid valve SLT defective

Regulator valve detective
If the measured values at all ranges are lower

Shift solenoid valve SLT defective

Regulator valve detective

Oil pump defective
If pressure is low in the D range only
D range circuit fluid leak

Forward clutch defective
If pressure is low in the R range only

R range circuit fluid leak

Direct clutch defective

1st and reverse brake defective

Terminal No.
Wire harness side
Turn Signal Flasher Relay
Skid Control ECU with Actuator Brake Fluid Level Warning Switch
Engine ECU
Oil Pressure Switch
DOME Fuse Headlight Beam Level Control ECU
Skid Control ECU with Actuator
Skid Control ECU with Actuator Turn Signal Flasher Relay Engine ECU ± Multi Display RAD No.1 Fuse
GND
EMPS ECU
TAIL Fuse
Skid Control ECU with Actuator Fuel Sensor Gauge
Skid Control ECU with Actuator
± GND
Rear Fog Light Relay Front Fog Light Relay Multi Display Fuse Filter Warning Switch (*1)
IGN Fuse Fuel Sender Gauge
Engine Oil Level Sensor Security ECU Ambient Temp. Sensor
4P OUT (Other Parts) H±HI RH Fuse/H±LP RH Fuse 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
201
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
C10
Airbag Sensor Assembly GND
GAUGE1 Fuse Skid Control ECU with Actuator
C11Engine ECU
Integration Relay
21
22
*1: 1CD±FTVAmbient Temp. Sensor
± DIAGNOSTICSCOMBINATION METER
05±1505
AVENSIS REPAIR MANUAL (RM1018E)

100EX±02
A75903
Air
A79035
VG
EVG
A79035
E2
EMPS
±
ENGINE CONTROL SYSTEM SFI SYSTEM(1ZZ±FE/3ZZ±FE)
10±1
AVENSIS REPAIR MANUAL (RM1018E)
SFI SYSTEM(1ZZ±FE/3ZZ±FE)
ON±VEHICLE INSPECTION
1.INSPECTMASS AIR FLOW METER
(a)If you have hand±held tester:
Inspect for operation
(1)Connect the hand±held tester to the DLC3.
(2)Turn the ignition switch ON.
(3)Blow air into the MAF meter, and check that the airflow fluctuates (MAF) of the ºDIAGNOSIS / OBD/
MOBD / DATA LIST / ALLº shown the standard val-
ue.
If operation is not as specified, check the MAF meter (See page
10±3), wiring and ECM.
(b)If you have no hand±held tester: Inspect for operation
(1)Turn the ignition switch ON.
(2)Connect the positive tester probe of the voltmeterto the terminal VG of the ECM. and the negative tes-
ter probe of the voltmeter to the terminal EVG of the
ECM.
(3)Blow air into the MAF meter, and check that the volt- age fluctuates.
If operation is not as specified, check the MAF meter (See page
10±3), wiring and ECM.
2. INSPECT POWER STEERING OIL PRESSURE SWITCH
(a) Using a voltmeter, measure the voltage between termi-
nals EMPS and E2.
Voltage:
ConditionVoltage (V)
Not spin the steering wheel at engine idling8 to 14
Spin the steering wheel at engine idling0 to 1.5

100G7±02
321 4 5
±20
020 40 60
80100 0.1 0.2 0.3 0.51 235 1020 30
TEMPERATURE
C(
F)
RESISTANCE k

(±4) (32) (80) (140)(104) (212)(176)
Air
E2
THAVG
E2G+B
A50378
12
Valve
A50377
B09641
10±20
± ENGINE CONTROL SYSTEMSFI SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT MASS AIR FLOW METER
(a) Output voltage inspection.
(1) Apply battery voltage across terminals 1 (+B) and 2
(E2G).
(2) Using a voltmeter, connect the positive (+) tester
probe to terminal 3 (VG), and negative (±) tester
probe to terminal 2 (E2G).
(3) Blow air into the MAF meter, and check that the volt-
age fluctuates.
(b) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween terminals 4 (THA) and 5 (E2).
Resistance:
TerminalsResistanceTemperature
THA ± E213.6 to 18.4 k
±20
C (±4
F)
THA ± E22.21 to 2.69 k
20
C (68
F)
THA ± E20.49 to 0.67 k
60
C (140
F)
2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE
ASSY
(a) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Resistance: 6.9 to 7.9
at 20
C (68
F)
(b) Movement inspection.
(1) Connect the positive (+) lead from the battery to ter-
minal 1 and negative (±) lead to terminal 2, and
check the movement of the valve.
NOTICE:
Confirm the valve does not adhere.
HINT:
Bad returning of the valve by entrance of foreign objects causes
subtle pressure leak to the advanced direction. Then, DTC can
be detected.
3. INSPECT THROTTLE BODY ASSY
(a) Check throttle body.
(1) Check that throttle valve shaft is not rickety.
(2) Check that each port is not stopped up.
(3) Check that throttle valve opens and closes smooth-
ly.
(4) Check that there is no clearance between the
throttle stop screw and throttle lever when the
closed throttle position.

100G6±02
A75903
Air
A79035
VG
EVG
A79035E2
PSW
10±18
±
ENGINE CONTROL SYSTEM SFI SYSTEM(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
SFI SYSTEM(1AZ±FE)
ON±VEHICLE INSPECTION
1.INSPECTMASS AIR FLOW METER
(a)If you have hand±held tester: Inspect for operation
(1)Connect the hand±held tester to the DLC3.
(2)Turn the ignition switch ON.
(3)Blow air into the MAF meter, and check that the airflow fluctuates (MAF) of the ºDIAGNOSIS / OBD/
MOBD / DATA LIST / ALLº shown the standard val-
ue.
If operation is not as specified, check the MAF meter (See page
10±20), wiring and ECM.
(b)If you have no hand±held tester: Inspect for operation
(1)Turn the ignition switch ON.
(2)Connect the positive tester probe of the voltmeterto the terminal VG of the ECM. and the negative tes-
ter probe of the voltmeter to the terminal EVG of the
ECM.
(3)Blow air into the MAF meter, and check that the volt- age fluctuates.
If operation is not as specified, check the MAF meter (See page
10±20), wiring and ECM.
2. INSPECT POWER STEERING OIL PRESSURE SEN- SOR
(a) Using a voltmeter, measure the voltage between termi-
nals PSW and E2.
Voltage:
ConditionVoltage (V)
Not spin the steering wheel at engine idling9 to 14
Spin the steering wheel at engine idling0 to 3