Page 2377 of 4770
CO06R±04
Z19069
No.1 Cooling Fan
No.2 Cooling Fan
± COOLING (5S±FE)ELECTRIC COOLING FAN
CO±29
1603 Author: Date:
REASSEMBLY
1. INSTALL FAN MOTOR
(a) Install the fan motor with the 3 screws.
(b) Install the wire and connector holder to the fan shroud.
2. No.2 Cooling Fan:
INSTALL FAN MOTOR COVER
Install the motor cover with the 2 screws.
3. INSTALL FAN
Install the fan with the nut.
Page 2378 of 4770
CO06S±03
S06016Attach
S06017Attach CO±30
± COOLING (5S±FE)ELECTRIC COOLING FAN
1604 Author: Date:
INSTALLATION
1. INSTALL NO.1 COOLING FAN
(a) Install the No.1 cooling fan.
(1) Attach the lower side of the cooling fan to the brack-
et of the radiator.
(2) Install the cooling fan with the 2 bolts.
Torque: 5.0 N´m (50 kgf´cm, 44 in.´lbf)
(3) Install the wire and connector holder for the ECT
switch to the fan shroud.
(4) Connect the cooling fan connector.
(5) Connect the ECT switch connector.
(b) Connect the upper radiator hose to the radiator
(c) Fill with engine coolant
(d) Start the engine and check for coolant leaks
2. INSTALL NO.2 COOLING FAN
(a) Attach the lower side of the cooling fan to the bracket of
the radiator.
(b) Install the cooling fan with the 2 bolts.
Torque: 5.0 N´m (50 kgf´cm, 44 in.´lbf)
(c) Connect the cooling fan connector.
Page 2379 of 4770
CO06T±03
S05245
ECT Switch Connector
O±RingECT
Switch
P05962
Ohmmeter
± COOLING (5S±FE)ENGINE COOLANT TEMPERATURE (ECT) SWITCH
CO±31
1605 Author: Date:
ENGINE COOLANT
TEMPERATURE (ECT) SWITCH
INSPECTION
1. DRAIN ENGINE COOLANT
2. REMOVE ECT SWITCH
(a) Disconnect the connector.
(b) Remove the ECT switch.
(c) Remove the O±ring from the ECT switch.
3. INSPECT ECT SWITCH
(a) Using an ohmmeter, check that there is no continuity be-
tween the terminals when the coolant temperature is
above 93°C (199°F).
If there is continuity, replace the switch.
(b) Using an ohmmeter, check that there is continuity be-
tween the terminals when the coolant temperature is be-
low 83°C (181°F).
If there is no continuity, replace the switch.
4. REINSTALL ECT SWITCH
(a) Install a new O±ring to the ECT switch.
(b) Install the ECT switch.
(c) Connect the connector.
5. REFILL WITH ENGINE COOLANT
6. START ENGINE AND CHECK FOR COOLANT LEAKS
Page 2380 of 4770

S05391
Engine
Main Relay
CO06U±03
B02803
Ohmmeter
Continuity
OhmmeterOhmmeter
No Continuity
Continuity21
5
43
B02804
Ohmmeter
Ohmmeter
No Continuity
Continuity 2
1
5
43
Battery
CO±32
± COOLING (5S±FE)ENGINE MAIN RELAY
1606 Author: Date:
ENGINE MAIN RELAY
INSPECTION
1. REMOVE RELAY BOX COVER
2. REMOVE ENGINE MAIN RELAY (Marking: ENGINE
MAIN)
3. INSPECT ENGINE MAIN RELAY
(a) Inspect the relay continuity.
(1) Using an ohmmeter, check that there is continuity
between terminals 3 and 5.
If there is no continuity, replace the relay.
(2) Check that there is continuity between terminals 2
and 4.
If there is no continuity, replace the relay.
(3) Check that there is no continuity between terminals
1 and 2.
If there is continuity, replace the relay.
(b) Inspect the relay operation.
(1) Apply battery positive voltage across terminals 3
and 5.
(2) Using an ohmmeter, check that there is no continu-
ity between terminals 2 and 4.
If there is continuity, replace the relay.
(3) Check that there is continuity between terminals 1
and 2.
If there is no continuity, replace the relay.
4. REINSTALL ENGINE MAIN RELAY
5. REINSTALL RELAY BOX COVER
Page 2381 of 4770

S05390
No.1 Cooling
Fan Relay
CO06V±03
B02801
Ohmmeter
ContinuityOhmmeter
Continuity4 1
3
2
B02802
No ContinuityOhmmeter
4 1
3
2Battery
S05387
No.2 Cooling
Fan Relay
S04972
Ohmmeter
1
32 4
No Continuity Continuity
5
Continuity OhmmeterOhmmeter
± COOLING (5S±FE)COOLING FAN RELAY
CO±33
1607 Author: Date:
COOLING FAN RELAY
INSPECTION
1. INSPECT NO.1 COOLING FAN RELAY
(a) Remove the relay box cover.
(b) Remove the No.1 cooling fan relay. (Marking: FAN NO.1)
(c) Inspect the No.1 cooling fan relay continuity.
(1) Using an ohmmeter, check that there is continuity
between terminals 1 and 2.
If there is no continuity, replace the relay.
(2) Check that there is continuity between terminals 3
and 4.
If there is no continuity, replace the relay.
(d) Inspect the No.1 cooling fan relay operation.
(1) Apply battery positive voltage across terminals 1
and 2.
(2) Using an ohmmeter, check that there is no continu-
ity between terminals 3 and 4.
If there is continuity, replace the relay.
(e) Reinstall the No.1 cooling fan relay
(f) Reinstall the relay box cover.
2. INSPECT NO.2 COOLING FAN RELAY
(a) Remove the relay box cover.
(b) Remove the No.2 cooling fan relay. (Marking: FAN NO.2)
(c) Inspect the No.2 cooling fan relay continuity.
(1) Using an ohmmeter, check that there is continuity
between terminals 1 and 2.
If there is no continuity, replace the relay.
(2) Check that there is continuity between terminals 3
and 4.
If there is no continuity, replace the relay.
(3) Check that there is no continuity between terminals
3 and 5.
If there is continuity, replace the relay.
Page 2382 of 4770

S04971
Ohmmeter1
32 4
No Continuity Battery
Continuity 5Ohmmeter
S05388
No.3 Cooling
Fan Relay
S04970
Ohmmeter
1
32 Continuity
5Ohmmeter
No Continuity
S04969
Ohmmeter
1
32
Continuity 5
Battery CO±34
± COOLING (5S±FE)COOLING FAN RELAY
1608 Author: Date:
(d) Inspect the No.2 cooling fan relay operation.
(1) Apply battery positive voltage across terminals 1
and 2.
(2) Using an ohmmeter, check that there is no continu-
ity between terminals 3 and 4
If there is continuity, replace the relay.
(3) Check that there is continuity between terminals 3
and 5.
If there is no continuity, replace the relay.
(e) Reinstall the No.2 cooling fan relay.
(f) Reinstall the relay box cover.
3. INSPECT NO.3 COOLING FAN RELAY
(a) Remove the relay box cover.
(b) Remove the No.3 cooling fan relay. (Marking: FAN NO.3)
(c) Inspect the No.3 cooling fan relay continuity.
(1) Using an ohmmeter, check that there is continuity
between terminals 1 and 2.
If there is no continuity, replace the relay.
(2) Check that there is no continuity between terminals
3 and 5.
If there is continuity, replace the relay.
(d) Inspect the No.3 cooling fan relay operation.
(1) Apply battery positive voltage across terminals 1
and 2.
(2) Using an ohmmeter, check that there is continuity
between terminals 3 and 5.
If there is no continuity, replace the relay.
(e) Reinstall the No.3 cooling fan relay.
(f) Reinstall the relay box cover.
Page 2383 of 4770
CO03B±04
± COOLING (1MZ±FE)COOLANT
CO±1
1609 Author: Date:
COOLANT
INSPECTION
1. CHECK ENGINE COOLANT LEVEL AT RADIATOR RESERVOIR
The engine coolant level should be between the ºLOWº and ºFULLº lines, when the engine is cold.
If low, check for leaks and add ''Toyota Long Life Coolantº or Equivalent up to the ºFULLº line.
2. CHECK ENGINE COOLANT QUALITY
(a) Remove the radiator cap from the water outlet.
CAUTION:
To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator
are still hot, as fluid and steam can be blown out under pressure.
(b) There should not be any excessive deposits of rust or scale around the radiator cap or water outlet
filler hole, and the coolant should be free from oil.
If excessively dirty, clean the coolant passages and replace the coolant.
(c) Reinstall the radiator cap.
Page 2384 of 4770

CO03C±04
Z18835
Drain Plug
Drain Plug CO±2
± COOLING (1MZ±FE)COOLANT
1610 Author: Date:
REPLACEMENT
1. DRAIN ENGINE COOLANT
(a) Remove the radiator cap from the water outlet.
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot, as fluid
and steam can be blown out under pressure.
(b) Loosen the radiator drain plug and engine drain plugs,
and drain the coolant.
(c) Close the drain plugs.
Torque:
RH engine drain plug on EGR cooler:
7 N´m (70 kgf´cm, 61 in.´lbf)
LH engine drain plug on union:
13 N´m (130 kgf´cm, 9 ft´lbf)
2. FILL ENGINE COOLANT
(a) Slowly fill the system with coolant.
Use of improper coolants may damage engine cool-
ing system.
Use ºToyota Long life Coolantº or equivalent and
mix it with plan water according to the manufactur-
er's directions.
Using of coolant which includes more than 50 %
(freezing protection down to ±35°C (±31°F) or 60 %
(freezing protection down to ±50°C (±58°F)) of eth-
ylene±glycol is recommended but not more than 70
%.
NOTICE:
Do not use an alcohol type coolant or plain water
alone.
The coolant should be mixed with plain water (prefer-
ably demineralized water or distilled water).
Capacity: 9.2 liters (9.7 US qts, 8.1 lmp. qts)
(b) Install the radiator cap.
(c) Start the engine, and bleed the cooling system.
(d) If necessary, refill coolant into the reservoir up to the
ºFULLº line.
3. CHECK ENGINE COOLANT FOR LEAKS
4. CHECK ENGINE COOLANT SPECIFIC GRAVITY
CORRECTLY