Trans TOYOTA SIENNA 2007 Service Repair Manual

INTRODUCTION – REPAIR INSTRUCTIONIN–25
IN
VEHICLE LIFT AND SUPPORT
LOCATIONS
1. NOTICE ABOUT VEHICLE CONDITION WHEN
JACKING UP VEHICLE
(a) The vehicle must be unloaded before jacking up/
lifting up the vehicle. Never jack up/lift up a heavily
loaded vehicle.
(b) When removing heavy parts such as the engine and
transmission, the center of gravity of the vehicle
may shift. To stabilize the vehicle, place a balance
weight in a location where it will not roll or shift, or
use a transmission jack to hold the jacking support.
2. NOTICE FOR USING 4 POST LIFT
(a) Follow the safety procedures outlined in the lift
instruction manual.
(b) Use precautionary measures to prevent the free
wheel beam from damaging tires or wheels.
(c) Use wheel chocks to secure the vehicle.
3. NOTICE FOR USING JACK AND SAFETY STAND
(a) Work on a level surface. Use wheel chocks at all
times.
(b) Set the jack and rigid racks to the specified
locations of the vehicle accurately.
(c) When jacking up the vehicle, first release the
parking brake and move the shift lever to N.
(d) When jacking up the entire vehicle:
(1) When jacking up the front wheels first, make
sure wheel chocks are behind the rear wheels.
(2) When jacking up the rear wheels first, make sure
wheel chocks are in front of the front wheels.
(e) When jacking up only the front or rear wheels of the
vehicle:
(1) Before jacking up the front wheels, place wheel
chocks on both sides of the rear wheels.
(2) Before jacking up the rear wheels, place wheel
chocks on both sides of the front wheels.
(f) When lowering a vehicle that only has its front or
rear wheels jacked up:
(1) Before lowering the front wheels, make sure
wheel chocks are in front of the rear wheels.
(2) Before lowering the rear wheels, make sure
wheel chocks are behind the front wheels.

SS–30SERVICE SPECIFICATIONS – U151E AUTOMATIC TRANSAXLE
SS
TORQUE SPECIFICATIONS
Part Tightened N*m kgf*cm ft*lbf
Park/neutral position switch Nut 6.9 70 61 in.*lbf
Bolt 5.4 55 48 in.*lbf
Control shaft lever x Control shaft 13 130 9
Shift control cable x Control shaft lever 13 130 9
Transaxle housing x Engine block A bolt 64 653 47
B bolt 46 470 34
C bolt 43 439 32
Torque converter clutch x Drive plate 41 413 35
Flywheel housing under cover x Automatic transaxle 7.8 80 69 in.*lbf
Engine mounting bracket FR x Transaxle 64 653 47
Oil filler tube x Transaxle5.5 56 49 in.*lbf
Control cable bracket No. 1 x Transaxle 12 122 9
Control cable bracket No. 2 x Transaxle 12 122 9
Oil cooler tube clamp x Control cable bracket 5.5 56 49 in.*lbf
Oil cooler inlet tube x Transaxle27 275 20
Oil cooler outlet tube x Transaxle 27 275 20
Starter x Transaxle37 377 27
Starter wire x Starter9.8 100 87 in.*lbf
Wire harness x Transaxle13 133 10
Wire harness clamp x Transaxle8.4 86 74 in.*lbf
Speed sensor (NC) x Transaxle11 11 5 8
Speed sensor (NT) x Transaxle11 11 2 8
Air cleaner x Air cleaner hose5.0 51 44 in.*lbf
Drain plug x Oil pan49 500 36
Transmission wire x Transaxle5.4 55 48 in.*lbf
ATF temperature sensor x Valve body 6.6 67 58 in.*lbf
Oil pan x Transaxle7.8 80 69 in.*lbf
Solenoid valve x Valve body A B bolt 11 110 8
C D bolt 6.6 67 58 in.*lbf
Valve body x Transaxle11 11 0 8
Oil strainer x Valve body11 11 0 8
Floor shift assembly x Body21 214 15
Control cable x Body12 122 9
Engine mount bracket RR x Transfer stiffener plate RH 34 350 25
Oil cooler assembly x Body Nut
7.0 71 62 in.*lbf
bolt
Differential gear lube apply tube x Transaxle housing 9.8 100 87 in.*lbf
Front planetary gear lock nut
210 to 3502,141 to
3,569155 to 258
Brake apply tube clamp x Transaxle case 5.4 55 48 in.*lbf
Transaxle case No. 1 plug x Transaxle rear cover 7.4 75 65 in.*lbf
Transaxle rear cover x Transaxle case Bolt A 19 190 14
Other bolt 25 250 18
Pawl shaft clamp x Transaxle case 9.8 100 87 in.*lbf
Oil pump assembly x Transaxle case 22 226 16

SERVICE SPECIFICATIONS – U151E AUTOMATIC TRANSAXLESS–31
SS
Transaxle housing x Transaxle case Bolt A 22 225 16
Bolt B 29 300 22
Bolt C 29 295 21
Bolt D 22 226 16
Automatic transmission case plug x Transaxle housing 7.4 75 65 in.*lbf
Automatic transmission case plug x Transaxle case 7.4 75 65 in.*lbf
Parking lock pawl bracket x Transaxle case 20 205 15
Manual detent spring x Transaxle case Bolt A 20 205 15
Bolt B 12 120 9
Transmission wire x Transaxle housing 5.4 55 48 in.*lbf
Transmission valve body x Transaxle case 11 110 8
ATF temperature sensor clamp x Transmission valve body 6.6 67 58 in.*lbf
Valve body oil strainer assembly x Transmission valve body 11 1108
Automatic transaxle oil pan sub-assembly x Transaxle case 7.8 80 69 in.*lbf
Drain plug x Automatic transaxle oil pan sub-assembly 49 500 36
Speed sensor x Transaxle case11 11 5 8
Oil cooler tube union x Transaxle case Union 27 276 20
Elbow 27 276 20
Park/neutral start switch x nut6.9 70 61 in.*lbf
Park/neutral start switch x Bolt5.4 55 48 in.*lbf
Park/neutral start switch x Control shaft lever 13 130 9
Speedometer driven hole cover sub-assembly x Transaxle case 6.9 7061
Oil pump body x Stator shaft assembly 9.8 100 87 in.*lbf
Line pressure control solenoid assembly x Transmission valve body assembly 6.6 67 58 in.*lbf
Shift solenoid valve SL1 x Transmission valve body assembly 6.6 67 58 in.*lbf
Shift solenoid valve SL2 x Transmission valve body assembly 10.811 0 8
Shift solenoid valve SL3 x Transmission valve body assembly 6.6 67 58 in.*lbf
Shift solenoid valve S4 x Transmission valve body assembly 10.8 110 8
Shift solenoid valve DSL x Transmission valve body assembly 10.811 0 8
Front differential case x Front differential ring gear 95.1 970 70Part Tightened N*m kgf*cm ft*lbf

EM–262GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLY
EM
REMOVAL
1. DISCHARGE FUEL SYSTEM PRESSURE (See page
FU-13)
2. DISCHARGE REFRIGERANT FROM
REFRIGERATION SYSTEM (See page AC-172)
3. REMOVE BATTERY
(a) Disconnect the negative battery terminal.
(b) Disconnect the positive battery terminal.
(c) Loosen the nut, and remove the bolt and battery
clamp.
(d) Remove the battery and battery tray.
4. PLACE FRONT WHEELS FACING STRAIGHT AHEAD
5. REMOVE FRONT WHEELS
6. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY
(a) Remove the 8 bolts, 4 clips and No. 1 engine under
cover assembly.
7. REMOVE FRONT FENDER APRON SEAL RH
(a) Remove the 2 bolts, clip and front fender apron seal
RH.
8. REMOVE FRONT FENDER APRON SEAL LH
(a) Remove the 2 bolts, clip and front fender apron seal
LH.
9. DRAIN ENGINE OIL (See page LU-4)
10. DRAIN ENGINE COOLANT (See page CO-6)
11. DRAIN AUTOMATIC TRANSAXLE FLUID (See page
AX-159)
12. REMOVE FRONT WIPER ARM HEAD CAP (See page
WW-4)
13. REMOVE WINDSHIELD WIPER ARM AND BLADE
ASSEMBLY RH (See page WW-4)
A155033
A162362
A162371
A162370

2GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLYEM–31
EM
(b) Disconnect the fuel tube from the fuel pipe while
pinching part A with your fingers as shown in the
illustration.
NOTICE:
• Check for contamination in the pipe and
around the connector. Clean if necessary and
then disconnect the connector.
• Disconnect the connector by hand.
• Do not bend, fold or rotate the nylon tube.
• If the pipe and connector are stuck together,
push and pull the connector until it becomes
free.
• Put the pipe and connector ends in vinyl bags
to prevent damage and contamination.
35. DISCONNECT NO. 1 OIL COOLER INLET HOSE
(a) Using pliers, grip the claws of the clip and slide the
clip to disconnect the No. 1 oil cooler inlet hose from
the No. 1 oil cooler inlet tube.
36. REMOVE NO. 1 OIL COOLER OUTLET HOSE
(a) Using pliers, grip the claws of the clip and slide the
clip to disconnect the No. 1 oil cooler outlet hose
from the No. 1 oil cooler outlet tube.
37. DISCONNECT TRANSMISSION CONTROL CABLE
ASSEMBLY
(a) Remove the nut from the control shaft lever.
(b) Disconnect the transmission control cable assembly
from the control shaft lever.
B012941E15
A155032
A155031
D025414E03

EM–322GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLY
EM
(c) Remove the clip and disconnect the transmission
control cable assembly from the control cable
bracket.
(d) Disconnect the control cable from the control cable
clamp.
38. DISCONNECT RETURN TUBE SUB-ASSEMBLY
(a) Using pliers, grip the claws of the 2 clips and slide
the 2 clips to disconnect the 2 return tube sub-
assemblies.
(b) Drain the power steering fluid.
NOTICE:
Take care not to damage the hose protector.
39. DISCONNECT NO. 1 OIL RESERVOIR TO PUMP
HOSE
(a) Using pliers, grip the claws of the clip and slide the
clip to disconnect the No. 1 oil reservoir to pump
hose from the oil reservoir tank.
40. DISCONNECT ENGINE WIRE
(a) Disconnect the engine wire from the engine room
junction block.
(1) Remove the nut and separate the wire harness.
(2) Using a screwdriver, unlock the engine room
junction block. Pull the engine room junction
block upward.
C089134E01
C090579
A163268
A155029
A155037

EM–342GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLY
EM
45. REMOVE PROPELLER WITH CENTER BEARING
SHAFT ASSEMBLY (See page PR-3)
46. DISCONNECT FRONT STABILIZER LINK ASSEMBLY
LH (See page DS-5)
47. DISCONNECT FRONT STABILIZER LINK ASSEMBLY
RH
HINT:
Use the same procedures described for the LH side.
48. REMOVE FRONT AXLE HUB NUT LH (See page DS-
5)
49. REMOVE FRONT AXLE HUB NUT RH
HINT:
Use the same procedures described for the LH side.
50. DISCONNECT FRONT SPEED SENSOR LH (See page
DS-5)
51. DISCONNECT FRONT SPEED SENSOR RH
HINT:
Use the same procedures described for the LH side.
52. DISCONNECT TIE ROD ASSEMBLY LH (See page
DS-6)
53. DISCONNECT TIE ROD ASSEMBLY RH
HINT:
Use the same procedures described for the LH side.
54. SEPARATE FRONT SUSPENSION LOWER NO. 1
ARM LH (See page DS-6)
55. SEPARATE FRONT SUSPENSION LOWER NO. 1
ARM RH
HINT:
Use the same procedures described for the LH side.
56. SEPARATE FRONT AXLE ASSEMBLY LH (See page
DS-6)
57. SEPARATE FRONT AXLE ASSEMBLY RH
HINT:
Use the same procedures described for the LH side.
58. DISCONNECT STEERING INTERMEDIATE SHAFT
SUB-ASSEMBLY
59. DISCONNECT DISCHARGE HOSE SUB-ASSEMBLY
(See page AC-227)
60. DISCONNECT SUCTION HOSE SUB-ASSEMBLY (See
page AC-227)
61. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE
(a) Set the engine lifter.

2GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLYEM–37
EM
(c) Remove the bolt and disconnect the engine
mounting insulator FR.
(d) Remove the 2 bolts and separate the engine
mounting insulator RR (for 4WD).
68. REMOVE FRONT DRIVE SHAFT ASSEMBLY LH (See
page DS-6)
69. REMOVE FRONT DRIVE SHAFT ASSEMBLY RH (for
2WD) (See page DS-6)
70. REMOVE FRONT DRIVE SHAFT ASSEMBLY RH (for
4WD) (See page DS-7)
71. REMOVE ENGINE WIRE
72. REMOVE STARTER ASSEMBLY (See page ST-5)
73. REMOVE ENGINE FRONT MOUNTING BRACKET
(See page AX-165)
74. REMOVE MANIFOLD STAY
(a) Remove the bolt, nut, and manifold stay.
75. REMOVE TRANSFER STIFFENER PLATE RH (See
page AX-166)
76. REMOVE AUTOMATIC TRANSAXLE ASSEMBLY (for
2WD)
HINT:
See page AX-165.
77. REMOVE AUTOMATIC TRANSAXLE ASSEMBLY (for
4WD)
AX-166
78. REMOVE DRIVE PLATE AND RING GEAR SUB-
ASSEMBLY (See page EM-12)
79. SECURE ENGINE
(a) Secure the engine onto an engine stand with the
bolts.
A155019
A155018
A155023

IN–38INTRODUCTION – HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS
IN
HINT:
• In troubleshooting, confirm that the problem symptoms
have been accurately identified. Preconceptions should be
discarded in order to make an accurate judgment. To
clearly understand what the problem symptoms are, it is
extremely important to ask the customer about the
problem and the conditions at the time the malfunction
occurred.
• Gather as much information as possible for reference.
Past problems that seem unrelated may also help in some
cases.
• The following 5 items are important points in the problem
analysis:
3. SYMPTOM CONFIRMATION AND DIAGNOSTIC
TROUBLE CODE
HINT:
The diagnostic system in the SIENNA has various
functions.
• The first function is the Diagnostic Trouble Code
(DTC) check. A DTC is a code stored in the ECU
memory whenever a malfunction in the signal circuits
to the ECU occurs. In a DTC check, a previous
malfunction's DTC can be checked by a technician
during troubleshooting.
• Another function is the Input Signal Check, which
checks if the signals from various switches are sent to
the ECU correctly.
By using these functions, the problem areas can be
narrowed down and troubleshooting is more effective.
Diagnostic functions are incorporated in the following
system in the SIENNA.
What Vehicle model, system name
When Date, time, occurrence frequency
Where Road conditions
Under what conditions? Running conditions, driving conditions, weather conditions
How did it happen? Problem symptoms
SystemSYMPTOM CONFIRMATION AND DIAGNOSTIC TROUBLE CODE
DTC Check
(Normal Mode)DTC Check
(Check Mode)Sensor Check/
Test Mode
(Input Signal
Check)Data List Active Test
2GR-FE SFI System
X
U151E Automatic Transaxle SystemX
U151F Automatic Transaxle SystemX
Tire pressure warning systemXX
Anti-lock Brake System
X
Vehicle Stability Control SystemX
Air Conditioning System (for Manual Air
Conditioning System)XXXXX
Air Conditioning System (for Automatic Air
Conditioning System)
XX
Airbag SystemXX
Occupant Classification System
XXX

INTRODUCTION – TERMSIN–51
IN
IFI Indirect Fuel Injection Indirect Injection (IDL)
IFS Inertia Fuel-Shutoff -
ISC Idle Speed Control -
KS Knock Sensor Knock Sensor
MAF Mass Airflow Air Flow Meter
MAP Manifold Absolute Pressure Manifold Pressure Intake Vacuum
MC Mixture ControlElectric Bleed Air Control Valve (EBCV)
Mixture Control Valve (MCV)
Electric Air Control Valve (EACV)
MDP Manifold Differential Pressure -
MFI Multiport Fuel Injection Electronic Fuel Injection (EFI)
MIL Malfunction Indicator Light Check Engine Light
MST Manifold Surface Temperature -
MVZ Manifold Vacuum Zone -
NVRAM Non-Volatile Random Access Memory -
O2S Oxygen SensorOxygen Sensor, O
2 Sensor (O2S)
OBD On-Board Diagnostic On-Board Diagnostic System (OBD)
OC Oxidation Catalytic Converter Oxidation Catalytic Convert (OC), CCo
OL Open Loop Open Loop
PAIR Pulsed Secondary Air Injection Air Suction (AS)
PCM Powertrain Control Module -
PNP Park/Neutral Position -
PROM Programmable Read Only Memory -
PSP Power Steering Pressure -
PTOX Periodic Trap OxidizerDiesel Particulate Filter (DPF)
Diesel Particulate Trap (DPT)
RAM Random Access Memory Random Access Memory (RAM)
RM Relay Module -
ROM Read Only Memory Read Only Memory (ROM)
RPM Engine Speed Engine Speed
SC Supercharger Supercharger
SCB Supercharger Bypass E-ABV
SFI Sequential Multiport Fuel Injection Electronic Fuel Injection (EFI), Sequential Injection
SPL Smoke Puff Limiter -
SRI Service Reminder Indicator -
SRT System Readiness Test -
ST Scan Tool -
TB Throttle Body Throttle Body
TBI Throttle Body Fuel InjectionSingle Point Injection
Central Fuel Injection (Ci)
TC Turbocharger Turbocharger
TCC Torque Converter Clutch Torque Converter
TCM Transmission Control Module Transmission ECU, ECT ECU
TP Throttle Position Throttle Position
TR Transmission Range -
TVV Thermal Vacuum ValveBimetallic Vacuum Switching Valve (BVSV)
Thermostatic Vacuum Switching Valve (TVSV)
TWC Three-Way Catalytic ConverterThree-Way Catalytic (TWC)
Manifold Converter
CC
RO
SAE
ABBREVIATIONSSAE TERMSTOYOTA TERMS
( )-ABBREVIATIONS