oil TOYOTA SIENNA 2007 Service Manual PDF

ES–962GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
MONITOR DESCRIPTION
The ECM optimizes the valve timing using the VVT system to control the exhaust camshaft. The VVT
system includes the ECM, the OCV and the VVT controller. The ECM sends a target duty-cycle control
signal to the OCV. This control signal regulates the oil pressure supplied to the VVT controller. The VVT
controller can advance or retard the exhaust camshaft.
After the ECM sends the target duty-cycle signal to the OCV, the ECM monitors the OCV current to
establish an actual duty-cycle. The ECM determines the existence of a malfunction and sets the DTC
when the actual duty-cycle ratio varies from the target duty-cycle ratio.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
COMPONENT OPERATING RANGE
Related DTCsP0013: VVT OCV (bank 1) open/short
P0023: VVT OCV (bank 2) open/short
Required sensors / components (Main) VVT OCV (Variable Valve Timing oil control valve)
Required sensors / components (Sub) -
Frequency of operation Continuous
Duration 1 second
MIL operation Immediate
Sequence of operation None
Monitor runs whenever following DTCs are not present None
All of the following conditions are met: -
Starter OFF
Engine switch ON
Time after engine switch off to on 0.5 seconds or more
One of the following conditions is met: Condition A, B or C
A. All of the following conditions are met: -
Battery voltage 11 to 13 V
Target duty ratio Less than 70%
B. All of the following conditions are met: -
Battery voltage 13 V or more
Target duty ratio Less than 80%
C. All of the following conditions are met: -
Current cut status Not cut
VVT duty ratio More than 3 %, and less than 100 %

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–97
ES
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
• If DTC P0013 is displayed, check the exhaust camshaft circuit for the bank 1 VVT system.
• Bank 1 refers to the bank that includes cylinder No. 1.
• If DTC P0023 is displayed, check the exhaust camshaft circuit for the bank 2 VVT system.
• Bank 2 refers to the bank that does not include cylinder No. 1.
• Read freeze frame data using an intelligent tester. The ECM records vehicle and driving condition
information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame
data can be helpful in determining whether the vehicle was running or stopped, whether the engine
was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the
time of a malfunction.
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine and turn the tester on.
(c) Warm up the engine.
(d) Enter the following menus: DIAGNOSIS / ENHANCED
OBD II / ACTIVE TEST / VVT CTRL B1 or VVT CTRL
B2.
(e) Check the engine speed while operating the Oil Control
Valve (OCV) using the tester.
1PERFORM ACTIVE TEST BY INTELLIGENT TESTER (OPERATE OCV)
A133849E09

ES–982GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
OK
NG
OK
(a) Disconnect the C26 or C25 camshaft timing oil control
valve (OCV) connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance
(c) Reconnect the OCV connector.
OK
NG
Tester Operation Specified Condition
OCV OFF Normal engine speed
OCV ON Engine idles roughly or stalls (soon after OCV switched from OFF to ON)
Go to step 2
CHECK FOR INTERMITTENT PROBLEMS
2INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY
A095415E03
Tester Connection Condition Specified Condition
1 - 2 20
C (68F) 6.9 to 7.9
Go to step 3
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (See page ES-486)

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–99
ES
(a) Disconnect the C25 or C26 camshaft timing oil control
valve (OCV) connector.
(b) Disconnect the E11 ECM connector.
(c) Measure the resistance according to the value(s) in the
table below.
Standard resistance (Check for open)
Standard resistance (Check for short)
(d) Reconnect the ECM connector.
(e) Reconnect the OCV connector.
NG
OK
3CHECK HARNESS AND CONNECTOR (OCV - ECM)
A162359E03
Tester Connection Specified Condition
OE1+ (E11-26) - C26-1 Below 1
OE1- (E11-31) - C26-2 Below 1
OE2+ (E11-27) - C25-1 Below 1
OE2- (E11-32) - C25-2 Below 1
Tester Connection Specified Condition
OE1+ (E11-26) or C26-1 - Body ground 10 k
or higher
OE1- (E11-31) or C26-2 - Body ground 10 k
or higher
OE2+ (E11-27) or C25-1 - Body ground 10 k
or higher
OE2- (E11-32) or C25-2 - Body ground 10 k
or higher
REPAIR OR REPLACE HARNESS OR
CONNECTOR (OCV - ECM)
REPLACE ECM (See page ES-498)

ES–1022GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
• Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition
information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame
data can be helpful in determining whether the vehicle was running or stopped, whether the engine
was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the
time of a malfunction.
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the
tester on.
(c) Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / DTC INFO / CURRENT CODES.
(d) Read the DTCs.
Result
HINT:
If any DTCs other than P0014, P0015, P0024 or P0025
are output, troubleshoot those DTCs first.
B
A
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine and turn the tester on.
(c) Warm up the engine.
(d) Select the following menu items on the tester:
DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST /
VVT EX B1 or VVT EX B2.
(e) Check the engine speed while operating the Oil Control
Valve (OCV) using the tester.
OK
NG
OK
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the
tester on.
(c) Clear the DTCs (See page ES-39).
1CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0014, P0015, P0024 OR
P0025)
Display (DTC Output) Proceed to
P0014, P0015, P0024 or P0025 A
P0014, P0015, P0024 or P0025 and other DTCs B
GO TO DTC CHART (See page ES-56)
2PERFORM ACTIVE TEST BY INTELLIGENT TESTER (OPERATE OCV)
Tester Operation Specified Condition
OCV OFF Normal engine idle speed
OCV ON Engine idles roughly or stalls (soon after OCV switched from OFF to ON)
Go to step 4
3CHECK WHETHER DTC OUTPUT RECURS (DTC P0014, P0015, P0024 OR P0025)

ES–1042GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
(a) Remove the OCV.
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance
(c) Apply positive battery voltage to terminal 1 and negative
battery voltage to terminal 2. Check the valve operation.
OK:
Valve moves quickly.
(d) Reinstall the OCV.
NG
OK
(a) Remove the oil pipe No. 1 or oil pipe assembly.
(b) Remove the oil control valve filter.
(c) Check that the filter and pipe are not clogged.
OK:
The filter and pipe are not clogged.
NG
5INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV)
A095415E03
Tester Connection Condition Specified Condition
1 - 2 20
C (68F) 6.9 to 7.9
A097066E08
REPLACE CAMSHAFT TIMING OIL
CONTROL VALVE ASSEMBLY (See page ES-
486)
6CHECK OIL PIPE AND OIL CONTROL VALVE FILTER
G042497E01
CLEAN OIL CONTROL VALVE FILTER AND
PIPE

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–105
ES
OK
NEXT
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the
tester on.
(c) Clear the DTCs (See page ES-39).
(d) Start the engine and warm it up.
(e) Select the check mode using the tester (See page ES-
43).
(f) Drive the vehicle for more than 10 minutes.
(g) Confirm that no DTC is set using the tester.
OK:
No DTC output.
HINT:
DTC P0014, P0015, P0024 or P0025 is output when
foreign objects in engine oil are caught in some parts 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.
NG
OK
7REPLACE CAMSHAFT TIMING GEAR ASSEMBLY
8CHECK WHETHER DTC OUTPUT RECURS
REPLACE ECM (See page ES-498)
SYSTEM IS OK

ES–1062GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
DESCRIPTION
Refer to DTC P0335 (See page ES-220).
MONITOR DESCRIPTION
DTC P0016 and P0018
The ECM optimizes the valve timing by using the VVT (Variable Valve Timing) system to control the intake
camshaft. The VVT system includes the ECM, the Oil Control Valve (OCV) and the VVT controller.
The ECM sends a target duty-cycle control signal to the OCV. This control signal regulates the oil
pressure applied to the VVT controller. The VVT controller can advance or retard the intake camshaft. The
ECM calibrates the intake valve timing by setting the intake camshaft to the most retarded angle while the
engine is idling. The ECM closes the OCV to retard the cam. The ECM stores this value as the VVT
learning value. When the difference between the target and actual intake valve timings is 5
CA
(Crankshaft Angle) or less, the ECM stores it.
If the VVT learning value matches the following conditions, the ECM determines the existence of a
malfunction in the VVT system, and sets the DTC.
• The VVT learning value: Less than 18.5
CA, or more than 43.5 CA.
• The above condition continues for 18 seconds or more.
This DTC indicates that the intake camshaft has been installed toward the crankshaft at an incorrect
angle, caused by factors such as the timing chain having jumped a tooth.
This monitor begins to run after the engine has idled for 5 minutes.
DTC P0017 and P0019
The ECM checks valve timing (VVT learning value) on the exhaust side while the engine is running at a
low speed, in order to monitor the gap between current and target valve timings on the exhaust side. The
VVT learning value is calculated from the positions of the camshaft and crankshaft. The camshaft will
come to the most retarded position when the engine is running at a low speed. If the camshaft position is
normal, the VVT learning value should be within the specified range. If the VVT learning value is not within
the specified range, the ECM determines this as a malfunction.
DTC P0016Crankshaft Position - Camshaft Position Corre-
lation (Bank 1 Sensor A)
DTC P0017Crankshaft Position - Camshaft Position Corre-
lation (Bank 1 Sensor B)
DTC P0018Crankshaft Position - Camshaft Position Corre-
lation (Bank 2 Sensor A)
DTC P0019Crankshaft Position - Camshaft Position Corre-
lation (Bank 2 Sensor B)
DTC No. DTC Detection Condition Trouble Area
P0016Deviations in crankshaft and camshaft position sensor
(for intake camshaft) 1 signals (2 trip detection logic)
• Mechanical system (Timing chain has jumped teeth
or chain stretched)
•ECM P0017Deviations in crankshaft and camshaft position sensor
(for exhaust camshaft) 1 signals (2 trip detection logic)
P0018Deviations in crankshaft and camshaft position sensor
(for intake camshaft) 2 signals (2 trip detection logic)
P0019Deviations in crankshaft and camshaft position sensor
(for exhaust camshaft) 2 signals (2 trip detection logic)

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–205
ES
When multiple DTCs for misfiring cylinders are set, but DTC P0300 is not set, it indicates that misfires
have been detected in different cylinders at different times. DTC P0300 is only set when several misfiring
cylinders are detected at the same time.
MONITOR DESCRIPTION
The ECM illuminates the MIL and sets a DTC when either one of the following conditions, which could
cause emission deterioration, is detected (2 trip detection logic).
• Within the first 1000 crankshaft revolutions of the engine starting, an excessive misfiring rate
(approximately 20 to 50 misfires per 1000 crankshaft revolutions) occurs once.
• An excessive misfiring rate (approximately 20 to 50 misfires per 1,000 crankshaft revolutions) occurs a
total of 4 times.
The ECM flashes the MIL and sets a DTC when either one of the following conditions, which could cause
the Three-Way Catalytic Converter (TWC) damage, is detected (2 trip detection logic).
• At a high engine rpm, a catalyst damage misfire, which monitored every 200 crankshaft revolutions,
occurs once.
• At a normal engine rpm, a catalyst damage misfire, which monitored every 200 crankshaft revolutions,
occurs 3 times.
HINT:
If a catalyst damage misfire occurs, the ECM informs the driver by flashing the MIL.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
Misfire:
Monitor period of emission-related-misfire:
Related DTCsP0300: Multiple cylinder misfire
P0301: Cylinder 1 misfire
P0302: Cylinder 2 misfire
P0303: Cylinder 3 misfire
P0304: Cylinder 4 misfire
P0305: Cylinder 5 misfire
P0306: Cylinder 6 misfire
Required Sensors / Components (Main) Injector, Ignition coil, Spark plug
Required Sensors / Components (Related)Crankshaft, Camshaft, Engine coolant temperature and intake air temperature
sensors and Mass air flow meter
Frequency of Operation Continuous
Duration1000 to 4000 crankshaft revolutions: Emission related misfire
200 to 600 crankshaft revolutions: Catalyst damaged misfire
MIL Operation2 driving cycles: Emission related misfire
MIL flashes immediately: Catalyst damaged misfire
Sequence of Operation None
The monitor will run whenever these DTCs are not
presentP0100, P0101, P0102, P0103 (MAF Sensor), P0110, P0112, P0113 (IAT Sensor),
P0115, P0116, P0117, P0118 (ECT Sensor), P0120, P0121, P0122, P0123, P0220,
P0222, P0223, P2135 (TP Sensor), P0125 (Insufficient ECT for Closed Loop),
P0327, P0328, P0332, P0333 (Knock Sensor), P0335 (CKP Sensor), P0340, (CMP
Sensor), P0500 (VSS)
Battery voltage 8 V or more
VVT system No operate by scan tool
Engine RPM 450 to 6500 rpm
Either of the following conditions is met Condition (a) or (b)
(a) Engine start ECT More than -7
C (19F)
(b) ECT More than 20
C (68F)
Fuel-cut OFF
First 1000 revolutions after engine start, or check mode Crankshaft 1000 revolutions

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–211
ES
(d) Read the CYL #1 to #6 or DTCs displayed on the tester.
Result
HINT:
• If it is difficult to reproduce misfires for each cylinder, check
the Data List item called MISFIRE MARGIN. Try to find
vehicle driving conditions that lower the MISFIRE
MARGIN value. Values above 30% are considered normal.
• If the freeze frame data's record of the ECT is below 75
C
(167
F), the misfire may be detected only when the engine
is cold.
• If the freeze frame data's record of the ENG RUN TIME is
below 120 seconds, the misfire may be detected
immediately after the engine is started.
B
A
(a) Remove the ignition coil and the spark plug of the
misfiring cylinder.
(b) Measure the spark plug electrode gap.
Maximum gap:
1.3 mm (0.0512 in.)
(c) Check the electrode for carbon deposits.
Recommended spark plug:
NOTICE:
If the electrode gap is larger than standard, replace
the spark plug. Do not adjust the electrode gap.
NG
OK
(a) Disconnect the injector connectors to prevent the engine
from starting.
CAUTION:
Always disconnect all injector connectors.
NOTICE:
Do not crank the engine for more than 2 seconds.
(b) Remove the ignition coil from the cylinder head.
(c) Install the spark plug onto the ignition coil.
(d) Attach the spark plug assembly to the cylinder head.
Misfire Count Proceed to
Most misfires occur in only 1 or 2 cylinders A
3 cylinders or more have equal misfire counts B
Go to step 18
7CHECK SPARK PLUG
A126880E03
Manufacturer Product
DENSO FK20HR11
REPLACE SPARK PLUG (See page IG-10)
8CHECK FOR SPARKS AND IGNITION