oil TOYOTA SIENNA 2007 Service Repair Manual

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–15
ES
BASIC INSPECTION
When a malfunction is not confirmed by the DTC check,
troubleshooting should be carried out in all circuits
considered to be possible causes of the problem. In many
cases, by carrying out the basic engine check shown in the
following flowchart, the location of the problem can be found
quickly and efficiently. Therefore, using this check is essential
when engine troubleshooting.
NOTICE:
Carry out this check with the engine stopped and ignition
switch off.
Result
NG
OK
NG
OK
NG
OK
(a) Visually check that the air filter is not excessively
contaminated with dirt or oil.
NG
OK
(a) Check the idling speed (See page EM-2).
1CHECK BATTERY VOLTAGE
Result Proceed to
11 V or more OK
Below 11 V NG
CHARGE OR REPLACE BATTERY
2CHECK WHETHER ENGINE CRANKS
PROCEED TO PROBLEM SYMPTOMS
TA B L E
3CHECK WHETHER ENGINE STARTS
GO TO STEP 6
4CHECK AIR FILTER
REPLACE AIR FILTER
5CHECK IDLING SPEED

ES–4862GR-FE ENGINE CONTROL SYSTEM – CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY
ES
ON-VEHICLE INSPECTION
1. INSPECT CAMSHAFT TIMING CONTROL VALVE
ASSEMBLY
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Start the engine and warm it up.
(d) Select the intelligent tester from the ACTIVE TEST
menu.
(e) Check the engine speed when the OCV (camshaft
timing oil control valve) is operated by the intelligent
tester.
OK
E144486E01
Condition Specified Condition
VVT system is OFF (OCV is OFF) Normal engine speed
VVT system is ON (OCV is ON) Rough idle or engine stalled

2GR-FE ENGINE CONTROL SYSTEM – CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLYES–487
ES
REMOVAL
1. REMOVE WINDSHIELD WIPER MOTOR ASSEMBLY
HINT:
(See page WW-4)
2. REMOVE FRONT OUTER COWL TOP PANEL SUB-
ASSEMBLY (See page EM-27)
3. DRAIN ENGINE COOLANT (See page CO-6)
4. REMOVE V-BANK COVER SUB-ASSEMBLY (See
page EM-28)
5. REMOVE NO. 2 AIR CLEANER INLET (See page EM-
28)
6. REMOVE NO. 1 AIR CLEANER INLET (See page EM-
28)
7. REMOVE AIR CLEANER CAP SUB-ASSEMBLY (See
page ES-493)
8. REMOVE AIR CLEANER CASE SUB-ASSEMBLY (See
page EM-28)
9. REMOVE INTAKE AIR SURGE TANK ASSEMBLY
(See page ES-521)
10. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY (for Bank 1 Exhaust Side)
(a) Disconnect the camshaft timing oil control valve
assembly connector.
(b) Remove the bolt and camshaft timing oil control
valve assembly.
(c) Remove the O-ring from the camshaft timing oil
control valve.
11. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY (for Bank 1 Intake Side)
(a) Disconnect the camshaft timing oil control valve
assembly connector.
(b) Remove the bolt and camshaft timing oil control
valve assembly.
(c) Remove the O-ring from the camshaft timing oil
control valve.
A135698
A135697

ES–4882GR-FE ENGINE CONTROL SYSTEM – CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY
ES
12. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY (for Bank 2 Exhaust Side)
(a) Disconnect the camshaft timing oil control valve
assembly connector.
(b) Remove the bolt and camshaft timing oil control
valve assembly.
(c) Remove the O-ring from the camshaft timing oil
control valve.
13. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY (for Bank 2 Intake Side)
(a) Disconnect the camshaft timing oil control valve
assembly connector.
(b) Remove the bolt and camshaft timing oil control
valve assembly.
(c) Remove the O-ring from the camshaft timing oil
control valve.
A135695
A135696

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–35
ES
STAR (NSW) (E10-8) - E1
(E11-1)B-Y - BRPark/Neutral position
switch signalIgnition switch ON, Shift lever
position P or N9 to 14 V
STAR (NSW) (E10-8) - E1
(E11-1)B-Y - BRPark/Neutral position
switch signalIgnition switch ON, Shift lever
position other than P or N9 to 14 V
STA (E11-11) - E1 (E11-1) B-L - BRStarter relay operation
signalCranking 9 to 14 V
OC2- (E11-14) - OC2+ (E11-
15)G-B - L-RCamshaft timing Oil
Control Valve (OCV)
operation signal (Intake
side)Ignition switch ONPulse generation
(see waveform 1)
OE2+ (E11-27) - OE2- (E11-
32)W - G-RCamshaft timing Oil
Control Valve (OCV)
operation signal (Intake
side)Ignition switch ONPulse generation
(see waveform 1)
OC1- (E11-16) - OC1+ (E11-
17)G-R - G-WCamshaft timing Oil
Control Valve (OCV)
operation signal (Intake
side)Ignition switch ONPulse generation
(see waveform 1)
OE1+ (E11-26) - OE1- (E11-
31)G - RCamshaft timing Oil
Control Valve (OCV)
operation signal (Intake
side)Ignition switch ONPulse generation
(see waveform 1)
VV2+ (E11-18) - VV2- (E11-
28)V - GVariable Valve Timing
(VVT) sensor signal
(Intake side)IdlingPulse generation
(see waveform 5)
VV1+ (E11-19) - VV1- (E11-
29)B-W - L-YVariable Valve Timing
(VVT) sensor signal
(Intake side)IdlingPulse generation
(see waveform 5)
NE- (E11-20) - NE+ (E11-21) B - WCrankshaft position sensor
signalIdlingPulse generation
(see waveform 5)
NE+ (E11-21) - NE- (E11-20) W - BCrankshaft position sensor
signalIdlingPulse generation
(see waveform 5)
EV2- (E11-22) - EV2+ (E11-
23)R - PVariable Valve Timing
(VVT) sensor signal
(Exhaust side)IdlingPulse generation
(see waveform 5)
EV2+ (E11-23) - EV2- (E11-
22)P - RVariable Valve Timing
(VVT) sensor signal
(Exhaust side)IdlingPulse generation
(see waveform 5)
EV1- (E11-24) - EV1+ (E11-
25)L-W - B-WVariable Valve Timing
(VVT) sensor signal
(Exhaust side)IdlingPulse generation
(see waveform 5)
EV1+ (E11-25) - EV1- (E11-
24)B-W - L-WVariable Valve Timing
(VVT) sensor signal
(Exhaust side)IdlingPulse generation
(see waveform 5)
VV2- (E11-28) - VV2+ (E11-
18)G - VVariable Valve Timing
(VVT) sensor signal
(Intake side)IdlingPulse generation
(see waveform 5)
VV1- (E11-29) - VV1+ (E11-
19)L-Y - B-WVariable Valve Timing
(VVT) sensor signal
(Intake side)IdlingPulse generation
(see waveform 5)
HT1B (E9-1) - E1 (E11-1)
HT2B (E10-5) - E1 (E11-1)L - BR
W-L - BRHeated oxygen sensor
heater operation signalIdling Below 3.0 V
HT1B (E9-1) - E1 (E11-1)
HT2B (E10-5) - E1 (E11-1)L - BR
W-L - BRHeated oxygen sensor
heater operation signalIgnition switch ON 9 to 14 V
ACM (E9-3) - E1 (E11-1) Y-G - BRVSV for active control
mount system operation
signalIgnition switch ON 9 to 14 V
M- (E9-4) - ME01 (E10-3) W - W-BThrottle drive motor
operation signal (negative
terminal)Idling with warm enginePulse generation
(see waveform 10) Symbols (Terminal No.) Wiring Colors Terminal Descriptions ConditionsSpecified
Condition

ES–362GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
M+ (E9-5) - ME01 (E10-3) B - W-BThrottle drive motor
operation signal (positive
terminal)Idling with warm enginePluse generation
(see waveform 9)
E02 (E9-6) - Body ground W-B - -Earth (ground) circuit of
ECMAlways Below 1 V
E01 (E9-7) - Body ground W-B - -Earth (ground) circuit of
ECMAlways Below 1 V
IGT1 (E9-8) - E1 (E11-1)
IGT2 (E9-9) - E1 (E11-1)
IGT3 (E9-10) - E1 (E11-1)
IGT4 (E9-11) - E1 (E11-1)
IGT5 (E9-12) - E1 (E11-1)
IGT6 (E9-13) - E1 (E11-1)R-L - BR
P - BR
Y- B - B R
L-Y - BR
G-Y - BR
L-R - BRIgnition coil with igniter
(ignition signal)IdlingPulse generation
(see waveform 6)
GE01 (E9-17) - E1 (E11-1) - - BRShielded earth (ground)
circuit of throttle drive
motorAlways Below 1 V
OX1B (E9-18) - E2 (E9-28)
OX2B (E10-33) - E2 (E9-28)W - BR
B - BRHeated oxygen sensor
signalWith engine speed at 2500 rpm
for 2 minutes after warming upPulse generation
(see waveform 2)
VTA2 (E9-19) - E2 (E9-28) B-R - BRThrottle position sensor
signal (for sensor
malfunction detection)Ignition switch ON, Accelerator
pedal fully released2.1 to 3.1 V
VTA2 (E9-19) - E2 (E9-28) B-R - BRThrottle position sensor
signal (for sensor
malfunction detection)Ignition switch ON, Accelerator
pedal fully depressed4.5 to 5.0 V
VTA1 (E9-20) - E2 (E9-28) LG - BRThrottle position sensor
signal (for engine control)Ignition switch ON, Throttle valve
fully closed0.5 to 1.2 V
VTA1 (E9-20) - E2 (E9-28) LG - BRThrottle position sensor
signal (for engine control)Ignition switch ON, Throttle valve
fully open3.2 to 4.8 V
THW (E9-21) - E2 (E9-28) G-B - BREngine coolant
temperature sensor signalIdling, Engine coolant
temperature 80
C (176F)0.2 to 1.0 V
THA (E9-22) - E2 (E9-28) L-B - BRIntake air temperature
sensor signalIdling, Intake air temperature
20
C (68F)0.5 to 3.4 V
VC (E9-23) - E2 (E9-28) Y - BRPower source of sensors
(specific voltage)Ignition switch ON 4.5 to 5.0 V
IGF1 (E9-24) - E1 (E11-1) W-R - BRIgnition coil with igniter
(ignition confirmation
signal)Ignition switch ON 4.5 to 5.0 V
IGF1 (E9-24) - E1 (E11-1) W-R - BRIgnition coil with igniter
(ignition confirmation
signal)IdlingPulse generation
(see waveform 6)
AICV (E9-27) - E1 (E11-1) W - BRVSV for Air intake control
system operation signalIgnition switch ON 9 to 14 V
E2 (E9-28) - E1 (E11-1) BR - BREarth (ground) circuit of
sensors for ETCSAlways Below 1 V
E2G (E9-29) - E1 (E11-1) L-W - BREarth (ground) circuit of
sensor for mass air flow
meterAlways Below 1 V
VG (E9-30) - E2G (E9-29) R - L-WMass Air Flow (MAF)
meter signalIdling, Shift lever position P or N,
A/C switch OFF0.5 to 3.0 V
ACIS (E9-33) - E1 (E11-1) R-Y - BRVSV for ACIS (Acoustic
Control Induction System)
operation signalIgnition switch ON 9 to 14 V
PRG (E9-34) - E1 (E11-1) G - BRPurge VSV for EVAP
system operation signalIgnition switch ON 9 to 14 V
PRG (E9-34) - E1 (E11-1) G - BRPurge VSV for EVAP
system operation signalIdlingPulse generation
(see waveform 7)
HA2A (E10-1) - E05 (E10-6) Y - W-BA/F sensor heater
operation signalIdling Below 3.0 V Symbols (Terminal No.) Wiring Colors Terminal Descriptions ConditionsSpecified
Condition

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–37
ES
*1: The ECM terminal voltage is constant regardless of
the output voltage from the sensor.
(a) WAVEFORM 1
(1) Camshaft Timing Oil Control Valve (OCV)
operation signal
HINT:
The wavelength becomes shorter as the engine
rpm increases.
HA2A (E10-1) - E05 (E10-6) Y - W-BA/F sensor heater
operation signalIgnition switch ON 9 to 14 V
HA1A (E10-2) - E04 (E10-7) B-W - W-BA/F sensor heater
operation signalIdling Below 3.0 V
HA1A (E10-2) - E04 (E10-7) B-W - W-BA/F sensor heater
operation signalIgnition switch ON 9 to 14 V
ME01 (E10-3) - E1 (E11-1) W-B - BREarth (ground) circuit of
ECMAlways Below 1 V
E03 (E10-4) - E1 (E11-1) W-B - BREarth (ground) circuit of
ECMAlways Below 1 V
HT2B (E10-5) - E1 (E11-1)
HT1B (E9-1) - E1 (E11-1)W-L - BR
L - BRHeated oxygen sensor
heater operation signalIdling Below 3.0 V
HT2B (E10-5) - E1 (E11-1)
HT1B (E9-1) - E1 (E11-1)W-L - BR
L - BRHeated oxygen sensor
heater operation signalIgnition switch ON 9 to 14 V
E05 (E10-6) - E1 (E11-1) W-B - BREarth (ground) circuit of
ECMAlways Below 1 V
E04 (E10-7) - E1 (E11-1) W-B - BREarth (ground) circuit of
ECMAlways Below 1 V
EKN2 (E10-20) - KNK2 (E10-
21)G - REarth (ground) circuit of
knock sensorWith engine speed at 4000 rpm
after warming upPulse generation
(see waveform 4)
KNK2 (E10-21) - EKN2 (E10-
20)R - G Knock sensor signalWith engine speed at 4000 rpm
after warming upPulse generation
(see waveform 4)
A1A+ (E10-22) - E1 (E11-1) BR - BR A/F sensor signal Ignition switch ON
3.3 V
*1
A1A+ (E10-22) - E1 (E11-1) BR - BR A/F sensor signal Ignition switch ON
3.0 V*1
A2A+ (E10-23) - E1 (E11-1) P - BR A/F sensor signal Ignition switch ON
3.3 V*1
A2A+ (E10-23) - E1 (E11-1) P - BR A/F sensor signal Ignition switch ON
3.0 V*1
EKNK (E10-28) - KNK1 (E10-
29)W - BEarth (ground) circuit of
knock sensorWith engine speed at 4000 rpm
after warming upPulse generation
(see waveform 4)
KNK1 (E10-29) - EKNK (E10-
28)B - W Knock sensor signalWith engine speed at 4000 rpm
after warming upPulse generation
(see waveform 4)
A1A- (E10-30) - E1 (E11-1) Y - BR A/F sensor Ignition switch ON
3.3 V
*1
A1A- (E10-30) - E1 (E11-1) Y - BR A/F sensor Ignition switch ON
3.0 V*1
A2A- (E10-31) - E1 (E11-1) L - BR A/F sensor Ignition switch ON
3.3 V*1
A2A- (E10-31) - E1 (E11-1) L - BR A/F sensor Ignition switch ON
3.0 V*1
OX2B (E10-33) - E2 (E9-28)
OX1B (E9-18) - E2 (E9-28)B - BR
W - BRHeated oxygen sensor
signalWith engine speed at 2500 rpm
for 2 minutes after warming upPulse generation
(see waveform 2) Symbols (Terminal No.) Wiring Colors Terminal Descriptions ConditionsSpecified
Condition
A093229E14
ECM Terminal NamesBetween OC1+ and OC1- , OC2+ and OC2- , OE1+
and OE1- , or OE2+ and OE2-
Tester Ranges 5 V/DIV, 1 msec./DIV
Conditions Idling

ES–5142GR-FE ENGINE CONTROL SYSTEM – CRANKSHAFT POSITION SENSOR
ES
REMOVAL
1. REMOVE COMPRESSOR AND MAGNETIC CLUTCH
HINT:
(See page AC-227 )
2. REMOVE CRANKSHAFT POSITION SENSOR
(a) Disconnect the crankshaft position sensor
connector.
(b) Remove the bolt, and then remove the crankshaft
position sensor.
INSPECTION
1. INSPECT CRANKSHAFT POSITION SENSOR
(a) Using an ohmmeter, measure the resistance
between the terminals.
Standard resistance
NOTICE:
• "Cold" and "Hot" mean the temperature of the
coils themselves.
• "Cold" is from -10
C (14F) to 50C (122F)
and "Hot" is from 50
C (122F) to 100C
(212
F).
If the resistance is not as specified, replace the
crankshaft position sensor.
A076417
A094922
Temperature Specified Condition
Cold 1,630 to 2,740
Hot 2,065 to 3,225

ES–5222GR-FE ENGINE CONTROL SYSTEM – KNOCK SENSOR
ES
(g) Using a 5 mm socket hexagon wrench, remove the
4 bolts [G].
(h) Remove the 2 nuts, 2 bolts and intake air surge tank
[H].
(i) Remove the gasket from the intake air surge tank [I].
9. REMOVE FUEL MAIN TUBE SUB-ASSEMBLY (See
page EM-30)
10. REMOVE INTAKE MANIFOLD (See page EM-39)
11. REMOVE KNOCK CONTROL SENSOR
(a) Disconnect the 2 knock sensor connectors.
(b) Remove the 2 bolts and then remove the 2 knock
control sensors.
INSPECTION
1. KNOCK CONTROL SENSOR
(a) Using an ohmmeter, measure the resistance
between the terminals.
Resistance:
120 to 280 k
at 20C (68F)
If the resistance is not specified, replace the knock
control sensor.
INSTALLATION
1. INSTALL KNOCK CONTROL SENSOR
(a) Install the 2 knock control sensors with the 2 bolts
as shown in the illustration.
Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf)
(b) Connect the 2 knock control sensor connectors.
2. INSTALL INTAKE MANIFOLD (See page EM-49)
3. INSTALL FUEL MAIN TUBE SUB-ASSEMBLY (See
page EM-56)
4. INSTALL INTAKE AIR SURGE TANK
NOTICE:
DO NOT apply oil to the bolts listed below.
A129468E08
A129615
A065174
A132951E01
Tightening PartsTo r q u e
N*m (kgf*cm, ft.*lbf)QTY
Surge Tank and Intake Manifold 18 (184, 13) 4
No. 1 Surge Tank Stay and Surge Tank 21 (214, 15) 1
Throttle Body Bracket and Surge Tank 21 (214, 15) 1

EM–442GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLY
EM
4. INSPECT INTAKE MANIFOLD
(a) Cylinder head side:
(1) Using a precision straightedge and feeler
gauge, measure the surface contacting the
cylinder head for warpage.
Maximum warpage:
0.1 mm (0.003 in.)
If the warpage is greater than the
maximum, replace the intake manifold.
(b) Surge tank side:
(1) Using a precision straightedge and feeler
gauge, measure the surface contacting the
surge tank for warpage.
Maximum warpage:
0.1 mm (0.003 in.)
If the warpage is greater than the
maximum, replace the intake manifold.
INSTALLATION
1. INSTALL ENGINE COOLANT TEMPERATURE
SENSOR
(a) Using a 19 mm deep socket wrench, install the
engine coolant temperature sensor and a new
gasket.
Torque: 20 N*m (200 kgf*cm, 14 ft.*lbf)
2. INSTALL KNOCK CONTROL SENSOR (See page ES-
522)
3. INSTALL ENGINE OIL PRESSURE SWITCH
ASSEMBLY
(a) Clean the threads of the oil pressure switch. Apply
adhesive to 2 or 3 threads of the oil pressure switch.
Adhesive:
Part No. 08833-00080, THREE BOND 1344,
LOCTITE 242 or equivalent
(b) Using a 24 mm deep socket wrench, install the oil
pressure switch.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
NOTICE:
Do not start the engine within 1 hour after
installation to prevent oil leaks.
A134934E01
A129648
P012478E01
A139194