2007 TOYOTA SIENNA cooling

CO–42GR-FE COOLING – COOLING FAN SYSTEM
CO
SYSTEM DIAGRAM
A162785E01

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–62GR-FE COOLING – COOLING FAN SYSTEM
CO
(g) After the engine is warmed up, check that the fan
operates as shown in the illustration.
HINT:
• The coolant temperature at which the fan starts
operating is approximately 95
C (203F).
• This system can also be checked using the
intelligent tester.
• Select the following menu items: Powertrain /
Engine / Data List / Initial Engine Coolant Temp.
A139339E05

PP–14PREPARATION – 2GR-FE COOLING
PP
EQUIPMENT
Ohmmeter -
Radiator cap tester -
Thermometer -
To r q u e w r e n c h -
Slide calipers -
Heater -
Ammeter (A) -

PREPARATION – 2GR-FE COOLINGPP–15
PP
COOLANT
Capacity Classification
11.3 liters (12.0 US qts, 10.0 Imp. qts) Use only "TOYOTA Super Long Life Coolant" or similar high quality
ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate
coolant with long-life hybrid organic acid technology (coolant with
long-life hybrid organic acid technology consists of a combination of
low phosphates and organic acids).

PP–16PREPARATION – 2GR-FE COOLING
PP
SSM
Toyota Genuine Seal Packing Black, Three Bond 1207B or Equivalent -

AIR CONDITIONING – CONDENSERAC–237
AC
REMOVAL
1. RECOVER REFRIGERANT FROM REFRIGERATION
SYSTEM (See page AC-172)
2. REMOVE NO. 2 AIR CLEANER INLET (See page EM-
28)
3. REMOVE FRONT BUMPER ASSEMBLY (See page
ET-3)
4. DISCONNECT DISCHARGE HOSE SUB-ASSEMBLY
(a) Remove the bolt and disconnect the discharge hose
sub-assembly from the cooler condenser core.
(b) Remove the O-ring from the discharge hose sub-
assembly.
NOTICE:
Seal the openings of the disconnected parts
using vinyl tape to prevent entry of moisture and
foreign matter.
5. DISCONNECT COOLER REFRIGERANT LIQUID PIPE
A
(a) Remove the bolt and disconnect the cooler
refrigerant liquid pipe A from the cooler condenser
core.
(b) Remove the O-ring from the cooler refrigerant liquid
pipe A.
NOTICE:
Seal the openings of the disconnected parts
using vinyl tape to prevent entry of moisture and
foreign matter.
6. REMOVE NO. 1 AIR CLEANER INLET (See page EM-
28)
7. REMOVE HOOD LOCK RELEASE LEVER
PROTECTOR (See page CO-29)
8. REMOVE HOOD LOCK ASSEMBLY (See page CO-29)
9. REMOVE HOOD LOCK SUPPORT SUB-ASSEMBLY
(See page CO-29)
10. DISCONNECT COOLING FAN ECU CONNECTOR
(See page CO-30)
11. REMOVE UPPER RADIATOR SUPPORT SUB-
ASSEMBLY (See page CO-30)
E145270
E145271

AC–240AIR CONDITIONING – CONDENSER
AC
4. CONNECT NO. 2 OIL COOLER OUTLET TUBE SUB-
ASSEMBLY
(a) Install the No. 2 oil cooler outlet tube sub-assembly
with the 2 bolts.
Torque: 6.0 N*m (61 kgf*cm, 53 in.*lbf)
5. INSTALL UPPER RADIATOR SUPPORT SUB-
ASSEMBLY (See page CO-42)
6. CONNECT COOLING FAN ECU (See page CO-42)
7. INSTALL HOOD LOCK SUPPORT SUB-ASSEMBLY
(See page CO-43)
8. INSTALL HOOD LOCK ASSEMBLY (See page CO-43)
9. INSTALL HOOD LOCK RELEASE LEVER
PROTECTOR (See page CO-44)
10. INSTALL NO. 1 AIR CLEANER INLET (See page EM-
59)
11. INSTALL COOLER REFRIGERANT LIQUID PIPE A
(a) Remove the attached vinyl tape from the pipe and
the connecting part of the cooler condenser core.
(b) Sufficiently apply compressor oil to a new O-ring
and the fitting surface of the pipe joint.
Compressor oil:
ND-OIL 8 or equivalent
(c) Install the O-ring on the cooler refrigerant liquid pipe
A.
(d) Install the cooler refrigerant liquid pipe A on the
cooler condenser core with the bolt.
Torque: 5.4 N*m (55 kgf*cm, 47 in.*lbf)
12. INSTALL DISCHARGE HOSE SUB-ASSEMBLY
(a) Remove the attached vinyl tape from the tube and
the connecting part of the cooler condenser core.
(b) Sufficiently apply compressor oil to a new O-ring
and the fitting surface of the hose joint.
Compressor oil:
ND-OIL 8 or equivalent
(c) Install the O-ring on the discharge hose sub-
assembly.
(d) Install the discharge hose sub-assembly on the
cooler condenser core with the bolt.
Torque: 5.4 N*m (55 kgf*cm, 47 in.*lbf)
13. INSTALL FRONT BUMPER ASSEMBLY (See page ET-
9)
14. INSTALL NO. 2 AIR CLEANER INLET (See page EM-
60)
15. CHARGE WITH REFRIGERANT (See page AC-173)
16. WARM UP ENGINE
17. INSPECT FOR REFRIGERANT LEAK (See page AC-
173)
E146681
E145271
E145270