sensor TOYOTA SIENNA 2007 Service Repair Manual

EX–122GR-FE EXHAUST – EXHAUST PIPE (for 4WD)
EX4. INSTALL NO. 1 EXHAUST PIPE SUPPORT BRACKET
(a) Install the No. 1 exhaust pipe support bracket to oil
pan sub-assembly with 2 new nuts.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
(b) Loosen the No. 1 exhaust pipe support bracket
bolts.
(c) Install the clamp to No. 1 exhaust pipe support
bracket.
(d) Retighten the No. 1 exhaust pipe support bracket
bolts.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
(e) Install the clamp with a new bolt.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
(f) Connect the heated oxygen sensor (for bank 2
sensor 2) connector.
A162162
A162668

2GR-FE EXHAUST – EXHAUST PIPE (for 4WD)EX–13
EX
5. INSTALL TAIL EXHAUST PIPE ASSEMBLY
(a) Install a new gasket to the center exhaust pipe
assembly.
(b) Connect the 4 exhaust pipe supports, and install the
tail exhaust pipe assembly.
(c) Install 2 new bolts.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
6. INSTALL HEATED OXYGEN SENSOR (for Bank 1
Sensor 2) (See page EC-41)
7. CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL
8. INSPECT FOR EXHAUST GAS LEAK
If exhaust gas is leaking, repair the leak. Replace
damaged parts as necessary.
A162161

2GR-FE COOLING – COOLING FAN SYSTEMCO–5
CO
ON-VEHICLE INSPECTION
1. INSPECT COOLING FAN SYSTEM
(a) Put the vehicle in the following conditions:
(1) The engine switch is off.
(2) The coolant temperature is less than 95
C
(203
F).
(3) The battery voltage is between 9 and 14 V.
(4) The A/C switch is OFF.
(b) Clamp the 400 A probe of an ammeter over the M+
wire of each cooling fan motor.
(c) Turn the ignition switch to the ON position and wait
for approximately 10 seconds. Check that the fan
stops.
(d) Start the engine. Check that the fan stops with the
engine idling.
HINT:
• Make sure that the radiator engine coolant
temperature is less than 95
C (203F).
• Turn the A/C switch OFF.
(e) Check that the fan operates when the A/C switch is
turned ON (MAX COOL and the magnetic clutch is
operating).
Standard current
HINT:
The coolant temperature is less than 95
C (203F).
(f) Check that the fan operates when the engine
coolant temperature sensor connector is
disconnected.
Standard current
Item Specified Condition
No. 1 cooling fan motor 5 to 14 A
No. 2 cooling fan motor 4 to 12 A
Item Specified Condition
No. 1 cooling fan motor 5 to 19 A
No. 2 cooling fan motor 4 to 16 A

CO–302GR-FE COOLING – RADIATOR
CO
11. DISCONNECT NO. 2 RADIATOR HOSE
(a) Disconnect the No. 2 radiator hose from the
radiator.
12. REMOVE HOOD LOCK RELEASE LEVER
PROTECTOR
(a) Disengage the 4 claws and remove the hood lock
release lever protector.
13. REMOVE HOOD LOCK ASSEMBLY
(a) With Hood Courtesy Switch:
(1) Disconnect the connector.
(b) Remove the 3 bolts.
(c) Disconnect the cable and remove the hood lock
assembly.
14. REMOVE HOOD LOCK SUPPORT SUB-ASSEMBLY
(a) Disconnect the ambient temperature sensor
connector.
A161461
A161456
A161457
A162807
A161459

CO–442GR-FE COOLING – RADIATOR
CO
15. INSTALL HOOD LOCK SUPPORT SUB-ASSEMBLY
(a) Install the hood lock support sub-assembly with the
2 bolts.
(b) Attach the clamp.
(c) Connect the low pitched horn and high pitched horn
connectors.
(d) Connect the ambient temperature sensor connector.
16. INSTALL HOOD LOCK ASSEMBLY
(a) Connect the cable to the hood lock assembly.
(b) Install the hood lock assembly with the 3 bolts.
Torque: 8 N*m (82 kgf*cm, 6 ft.*lbf)
(c) With Hood Courtesy Switch:
(1) Connect the connector.
A161460
A161458
A161459
A162807
A161457

CO–302GR-FE COOLING – RADIATOR
CO
11. DISCONNECT NO. 2 RADIATOR HOSE
(a) Disconnect the No. 2 radiator hose from the
radiator.
12. REMOVE HOOD LOCK RELEASE LEVER
PROTECTOR
(a) Disengage the 4 claws and remove the hood lock
release lever protector.
13. REMOVE HOOD LOCK ASSEMBLY
(a) With Hood Courtesy Switch:
(1) Disconnect the connector.
(b) Remove the 3 bolts.
(c) Disconnect the cable and remove the hood lock
assembly.
14. REMOVE HOOD LOCK SUPPORT SUB-ASSEMBLY
(a) Disconnect the ambient temperature sensor
connector.
A161461
A161456
A161457
A162807
A161459

CO–442GR-FE COOLING – RADIATOR
CO
15. INSTALL HOOD LOCK SUPPORT SUB-ASSEMBLY
(a) Install the hood lock support sub-assembly with the
2 bolts.
(b) Attach the clamp.
(c) Connect the low pitched horn and high pitched horn
connectors.
(d) Connect the ambient temperature sensor connector.
16. INSTALL HOOD LOCK ASSEMBLY
(a) Connect the cable to the hood lock assembly.
(b) Install the hood lock assembly with the 3 bolts.
Torque: 8 N*m (82 kgf*cm, 6 ft.*lbf)
(c) With Hood Courtesy Switch:
(1) Connect the connector.
A161460
A161458
A161459
A162807
A161457

2GR-FE IGNITION – IGNITION COIL AND SPARK PLUGIG–7
IG
(3) Check the spark plug (See page EM-1).
Result
(4) Check the power supply to the ignition coil.
1. Turn the ignition switch to the ON position.
2. Check that there is battery voltage at the
ignition coil positive (+) terminal.
Result
(5) Measure the resistance of the crankshaft
position sensor (See page ES-514).
Result
(6) Check the IGT signal from the ECM (See page
ES-233)
Result
(e) Using a 16 mm (0.63 in.) plug wrench, install the
spark plugs.
Torque: 18 N*m (184 kgf*cm, 13 ft.*lbf)
(f) Connect the 6 fuel injector connectors.
(g) Install the ignition coil assembly (See page IG-10).
2. INSPECT SPARK PLUG
NOTICE:
• Never use a wire brush for cleaning.
• Never attempt to adjust the electrode gap on a
used spark plug.
(a) Check the electrode.
(1) Using a megohmmeter, measure the insulation
resistance.
Standard insulation resistance:
10 M
or higher
HINT:
• If the result is 10 M
or less, clean the plug
and measure the resistance again.
• If a megohmmeter is not available, perform
the following simple inspection instead.
(b) Alternative inspection method:
(1) Quickly accelerate the engine to 4000 rpm 5
times.
Result Proceed to
NG Replace spark plug
OK Go to next step
Result Proceed to
NGCheck wiring between ignition
switch and ignition coil
OK Go to next step
Result Proceed to
NG Replace crankshaft position sensor
OK Go to next step
Result Proceed to
NG Check ECM
OKRepair wiring between ignition coil
and ECM
I039522E10

U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–21
AX
HINT:
*1: Drive at such a speed in the uppermost gear, to
engage lock-up. The vehicle can be driven at a
speed lower than that in the above diagram under
the lock-up condition.
NOTICE:
If necessary to drive the vehicle for
approximately 30 minutes to detect DTC P0711
(ATF temperature sensor malfunction).
G031593E28

AX–22U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
PROBLEM SYMPTOMS TABLE
HINT:
• If a normal code is displayed during the diagnostic trouble
code check although the trouble still occurs, check the
electrical circuits for each symptom in the order given in
the charts on the following pages and proceed to the page
given for troubleshooting.
• The Matrix Chart is divided into 2 chapters.
• When the circuit on which mark *1 is attached is a
malfunction, DTC could be output.
Refer to the table below when the trouble cause is considered
to be electrical. If the instruction PROCEED TO NEXT
CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS
TABLE is given in the flowchart of each circuit, inspect the
suspected areas in descending order for each symptom. If
the trouble still occurs even though there are no
abnormalities in the inspections listed for the symptoms,
check and replace the ECM.
1. Chapter 1: Electronic Circuit Matrix Chart
Symptom Suspected Area See page
No down-shift (A particular gear, from 1st to 4th gear,
is not down-shifted)ECMIN-30
No down-shift (5th -> 4th)Transmission control switch (D <--> 4 position) circuitAX-38
Shift solenoid valve S4 circuit *1AX-104
ECMIN-30
No up-shift (A particular gear, from 1st to 4th gear, is
not up-shifted)ECMIN-30
No up-shift (4th -> 5th)Transmission control switch (D <--> 4 position) circuitAX-38
Shift solenoid valve S4 circuit *1AX-104
ECMIN-30
No lock-upStop light switch circuit *1AX-56
Engine coolant temp. sensor circuit *1ES-56
ECMIN-30
No lock-up off ECMIN-30
Shift point too high or too lowThrottle position sensor circuit *1ES-56
ECMIN-30
Up-shift to 5th from 4th while shift lever is in 4 positionTransmission control switch (D <--> 4 position) circuitAX-38
ECMIN-30
Up-shift to 5th from 4th while engine is coldEngine coolant temp. sensor circuit *1ES-56
ECMIN-30
Up-shift to 2nd from 1st while shift lever is in L positionTransmission control switch (L <--> 2 position) circuit *1AX-38
ECMIN-30
Harsh engagement (N -> D)Shift solenoid valve SL1 circuit *1AX-70
ECMIN-30
Harsh engagement (Lock-up) ECMIN-30
Harsh engagement (Any driving position) ECMIN-30
Poor acceleration ECMIN-30
No kick-down ECMIN-30
Engine stalls when starting off or stopping ECMIN-30
Malfunction in shiftingPark/neutral position switch circuit *1AX-38
Transmission control switch (D <--> 4 position) circuitAX-38
ECMIN-30