2007 TOYOTA SIENNA battery

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

IN–36INTRODUCTION – HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS
IN
HOW TO PROCEED WITH
TROUBLESHOOTING
1. OPERATION FLOW
HINT:
Perform troubleshooting in accordance with the
procedures below. The following is an outline of basic
troubleshooting procedures. Confirm the troubleshooting
procedures for the circuit you are working on before
beginning troubleshooting.
NEXT
(a) Ask the customer about the conditions and environment
when the problem occurred.
NEXT
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the
battery before proceeding.
NEXT
(a) Visually check the wire harnesses, connectors and fuses
for open and short circuits.
(b) Warm up the engine to the normal operating
temperature.
(c) Confirm the problem symptoms and conditions, and
check for DTCs
Result
B
A
1VEHICLE BROUGHT TO WORKSHOP
2CUSTOMER PROBLEM ANALYSIS
3INSPECT BATTERY VOLTAGE
4SYMPTOM CONFIRMATION AND DTC (AND FREEZE FRAME DATA) CHECK
Result Proceed to
DTC is output A
DTC is not output B
Go to step 6

IN–50INTRODUCTION – TERMS
IN
GLOSSARY OF SAE AND TOYOTA
TERMS
This glossary lists all SAE-J1930 terms and abbreviations
used in this manual in compliance with SAE
recommendations, as well as their TOYOTA equivalents.
SAE
ABBREVIATIONSSAE TERMSTOYOTA TERMS
( )-ABBREVIATIONS
A/C Air Conditioning Air Conditioner
ACL Air Cleaner Air Cleaner, A/CL
AIR Secondary Air Injection Air Injection (AI)
AP Accelerator Pedal -
B+ Battery Positive Voltage +B, Battery Voltage
BARO Barometric Pressure HAC
CAC Charge Air Cooler Intercooler
CARB Carburetor Carburetor
CFI Continuous Fuel Injection -
CKP Crankshaft Position Crank Angle
CL Closed Loop Closed Loop
CMP Camshaft Position Cam Angle
CPP Clutch Pedal Position -
CTOX Continuous Trap Oxidizer -
CTP Closed Throttle Position LL ON, Idle ON
DFI Direct Fuel Injection Direct Injection (DI./INJ)
DI Distributor Ignition -
DLC3 Data Link Connector 3 OBD II Diagnostic Connector
DTC Diagnostic Trouble Code Diagnostic Trouble Code
DTM Diagnostic Test Mode -
ECL Engine Coolant Level -
ECM Engine Control Module Engine Electronic Control Unit (ECU)
ECT Engine Coolant Temperature Coolant Temperature, Water Temperature (THW)
EEPROM Electrically Erasable Programmable Read Only MemoryElectrically Erasable Programmable Read Only
Memory (EEPROM), Erasable Programmable Read
Only Memory (EPROM)
EFE Early Fuel Evaporation Cold Mixture Heater (CMH), Heat Control Valve (HCV)
EGR Exhaust Gas Recirculation Exhaust Gas Recirculation (EGR)
EI Electronic Ignition Distributorless Ignition (DLI)
EM Engine Modification Engine Modification (EM)
EPROM Erasable Programmable Read Only Memory Programmable Read Only Memory (PROM)
EVAP Evaporative Emission Evaporative Emission Control (EVAP)
FC Fan Control -
FEEPROMFlash Electrically Erasable Programmable Read Only
Memory-
FEPROM Flash Erasable Programmable Read Only Memory -
FF Flexible Fuel -
FP Fuel Pump Fuel Pump
GEN Generator Alternator
GND Ground Ground (GND)
HO2S Heated Oxygen SensorHeated Oxygen Sensor (HO
2S)
IAC Idle Air Control Idle Speed Control (ISC)
IAT Intake Air Temperature Intake or Inlet Air Temperature
ICM Ignition Control Module -

IN–36INTRODUCTION – HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS
IN
HOW TO PROCEED WITH
TROUBLESHOOTING
1. OPERATION FLOW
HINT:
Perform troubleshooting in accordance with the
procedures below. The following is an outline of basic
troubleshooting procedures. Confirm the troubleshooting
procedures for the circuit you are working on before
beginning troubleshooting.
NEXT
(a) Ask the customer about the conditions and environment
when the problem occurred.
NEXT
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the
battery before proceeding.
NEXT
(a) Visually check the wire harnesses, connectors and fuses
for open and short circuits.
(b) Warm up the engine to the normal operating
temperature.
(c) Confirm the problem symptoms and conditions, and
check for DTCs
Result
B
A
1VEHICLE BROUGHT TO WORKSHOP
2CUSTOMER PROBLEM ANALYSIS
3INSPECT BATTERY VOLTAGE
4SYMPTOM CONFIRMATION AND DTC (AND FREEZE FRAME DATA) CHECK
Result Proceed to
DTC is output A
DTC is not output B
Go to step 6

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

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

2GR-FE STARTING – STARTERST–5
ST
REMOVAL
1. REMOVE BATTERY (See page EM-26)
2. REMOVE NO. 2 AIR CLEANER INLET (See page EM-
28)
3. REMOVE AIR CLEANER CAP SUB-ASSEMBLY (See
page FU-13)
4. REMOVE AIR CLEANER FILTER ELEMENT (See page
EM-28)
5. REMOVE AIR CLEANER CASE SUB-ASSEMBLY (See
page EM-28)
6. REMOVE AIR CLEANER BRACKET
(a) Remove the 2 bolts and the air cleaner bracket.
7. REMOVE NO. 1 AIR CLEANER INLET
(a) Remove the bolt and the No. 1 air cleaner inlet.
8. REMOVE STARTER ASSEMBLY
(a) Disconnect the starter connector.
(b) Open the terminal cap and remove the nut and the
starter wire.
A155041
A160253
A160251

BRAKE – BRAKE PEDALBR–11
BR
REMOVAL
1. SEPARATE BATTERY NEGATIVE TERMINAL
2. REMOVE FRONT DOOR SCUFF PLATE LH
3. REMOVE COWL SIDE TRIM BOARD LH
4. REMOVE INSTRUMENT PANEL FINISH PANEL SUB-
ASSEMBLY LOWER LH
(a) Remove the 2 bolts and instrument panel finish
panel sub-assembly lower LH.
5. REMOVE INSTRUMENT PANEL SAFETY PAD
INSERT SUB-ASSEMBLY NO. 1
(a) Remove the 4 bolts and instrument panel safety pad
insert sub-assembly No. 1.
6. LOOSEN BRAKE PEDAL SHAFT
(a) Loosen the 2 brake pedal shafts.
7. REMOVE BRAKE PEDAL SUPPORT ASSEMBLY
(a) Remove the 4 nuts and brake pedal support sub-
assembly.
(b) Using needle-nose pliers, remove the tension
spring.
(c) Remove the clip and clevis pin from the brake pedal
lever.
(d) Remove the 2 bolts from the brake pedal bracket
No. 3.
(e) Remove the stop light switch harness clamp from
the brake pedal support sub-assembly.
(f) Disconnect the stop light switch connector.
F045360E01
G024262
G024263