RADIATOR FAN TOYOTA RAV4 1996 Service Repair Manual

CO0BP−02
S01819
Lower Radiator
Hose
No.2 Cooling
Fan Connector
(w/ A/C)
Radiator
Assembly Upper Radiator
Support
ECT Switch
ConnectorRadiator
Upper Radiator
SupportNo.1 Cooling FanNo.2 Cooling Fan
(w/ A/C)
Radiator Cap
Upper Radiator Hose
Engine Wire
Radiator Reservoir Hose
A/T Oil Cooler Hose
 O−Ring
No.1 Cooling
Fan Connector Lower Radiator
Support Cooler Condenser
RH Engine
Under Cover
LH Engine
Under CoverLH Engine
Under Cover
 Non−reusable partM/TA/TDrain Plug
− COOLINGRADIATOR
CO−15
1996 RAV4 (RM447U)
COMPONENTS

CO0BQ−03
S01355
S01278
w/ A/C
S01293
CO−16
− COOLINGRADIATOR
1996 RAV4 (RM447U)
REMOVAL
1. REMOVE ENGINE UNDER COVERS
2. DRAIN ENGINE COOLANT
3. w/ A/C:
REMOVE COOLER CONDENSER (See page AC−47)
4. REMOVE RADIATOR ASSEMBLY
(a) Disconnect the No.1 cooling fan connector.
(b) w/ A/C:
Disconnect the No.2 cooling fan connector.
(c) Disconnect the ECT switch connector for electric cooling
fan.
(d) Disconnect the engine wire clamp from No.1 cooling fan
shroud.
(e) Disconnect the upper radiator hose from radiator.
(f) Disconnect the lower radiator hose from radiator.
(g) Disconnect the radiator reservoir hose from radiator.
(h) Disconnect the 2 A/T oil cooler hoses from oil cooler
pipes.
(i) Remove the 2 bolts and 2 upper radiator supports.
Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)
(j) Remove the radiator assembly.
HINT:
At the time of installation, plaese refer to the following items. Af-
ter installation, check that the rubber cushion (A) of the support
is not depressed.
(k) Remove the 2 lower radiator supports.
5. w/ A/C:
REMOVE NO.2 COOLING FAN FROM RADIATOR
Remove the 3 bolts and cooling fan.
Torque: 5.0 N·m (50 kgf·cm, 43 in.·lbf)
6. REMOVE NO.1 COOLING FAN FROM RADIATOR
Remove the 4 bolts and cooling fan.
Torque: 5.0 N·m (50 kgf·cm, 43 in.·lbf)

CO0BT−02
S01818
Radiator
No.1 Cooling Fan Lower Radiator Hose
No.2 Cooling
Fan Connector
(w/ A/C)
Upper Radiator
Support
Radiator Cap
Upper Radiator Hose
Engine Wire
Radiator Reservoir Hose
A/T Oil Cooler Hose
Drain Plug
 O−Ring
LH Engine
Under Cover ECT Switch
Connector
Radiator
Assembly
Cooler Condenser
Lower Radiator
Support
No.1 Cooling
Fan Connector
RH Engine
Under Cover
 Non−reusable PartA/T
M/TUpper Radiator
Support
LH Engine
Under Cover NO.1 COOLING FAN
− COOLINGELECTRIC COOLING FAN
CO−19
1996 RAV4 (RM447U)
COMPONENTS

S01820
Upper Radiator Support
No.2 Cooling Fan Connector
No.2 Cooling Fan
Cooler Condenser
RH Engine
Under Cover NO.2 COOLING FAN
x 6 CO−20
− COOLINGELECTRIC COOLING FAN
1996 RAV4 (RM447U)

CO18L−01
S01356
(A)
S01433
− COOLINGELECTRIC COOLING FAN
CO−21
1996 RAV4 (RM447U)
REMOVAL
1. REMOVE NO.1 COOLING FAN (See page CO−16)
2. REMOVE NO.2 COOLING FAN
(a) Remove the RH engine under cover.
(b) w/ A/C:
Remove the cooler condenser (See page AC−47).
(c) Remove the upper radiator supports.
Torque:13 N·m (130kgf·cm, 9 ft·lbf)
HINT:
At the time of installation, plaese refer to the following items. Af-
ter installation, check that the rubber cushion (A) of the support
is not depressed.
(d) Remove the No.2 cooling fan.
(1) Disconnect the cooling fan connector.
(2) Push the radiator toward the front bumper.
(3) Remove the 3 bolts.
(4) Push the No.2 cooling fan toward radiator and pull
it upward.

29
G
Position of Parts in Engine Compartment
I 1 Idle Air Control Valve R 1Radiator Fan Motor
I 2 Igniter R 2 Rear Washer Motor
I 3 Ignition Coil and Distributor
I 4 Ignition Coil and Distributor S 1 Solenoid Valve SLD
I 5 Injector No. 1 S 2 Starter
I 6 Injector No. 2 S 3 Starter
I 7 Injector No. 3
I 8 Injector No. 4 T 1 Throttle Position Sensor
I 9 Intake Air Temp. Sensor
V 1 Vapor Pressure Sensor
K 1 Knock Sensor V 2 Vehicle Speed Sensor (Combination Meter)
V 3 Vehicle Speed Sensor (Front)
M 1 Manifold Absolute Pressure Sensor V 4 Vehicle Speed Sensor (Rear)
V 5 VSV (Center Diff. Lock No. 1)
N 1 Noise Filter (Ignition System) V 6 VSV (Center Diff. Lock No. 2)
V 7 VSV (EGR)
O 1 Oil Pressure SW V 8 VSV (EVAP)
O 2 Oxygen Sensor (Bank 1 Sensor 1) V 9 VSV (Vapor Pressure Sensor)
O 3 Oxygen Sensor (Bank 1 Sensor 2)
W 1 Water Temp. Sender
P 1 Park/Neutral Position SW (A/T)

157
RADIATOR FAN AND CONDENSER FAN

158
RADIATOR FAN AND CONDENSER FAN
66
6666
66 66
666 IB2 1
M
1 2
1 2
1
EB EA LG - BW-R B-Y
B-R B-R
W-B W-B JUN CTIO N
CONNECTOR
RADIA TOR FAN
MOTOR R 1
A/C CONDENSER
FAN M OTOR A 1FR O M M G /C R ELAY
W-B
FROM POW ER SOURCE SYSTEM (
SEE PAGE 54)
W-B
W-B
B-R
W-R
R-W
2 2
2W
B-YB-Y
L-R
B
W-BB-YW
W-BE 1
B-Y
6FUSIBLE
LIN K
BLOCK F 7
100A ALT
24 13
52 31
25 13
4FAN NO. 1 RELAY
FAN NO. 2 RELAY
FAN NO. 3 RELAY25 413
E/G
MAIN
RELAY
2A
A/C W ATER
EMP. SW A 4B-R
LG -B LG
W-B
J 1A/C SINGLE PRESSURE SW A 3
130A
CDS
FAN
4 30A
RDI
FAN
2 2 22 3
L-R
B
W-B
W-B
W-B
7. 5A
ECU-IG
[FUSE
BLOCK]
13 12
F 8
1E 6
1A 6
3 2
AA
A
T
M

159
FAN MOTOR OPERATION
WHEN THE IGNITION SW IS TURNED ON, CURRENT FROM THE ECU-IG FUSE FLOWS TO THE FAN NO. 1 RELAY (COIL SIDE) AND
THE FAN NO. 2 RELAY (COIL SIDE) "TERMINAL 2 OF THE A/C SINGLE PRESSURE SW "TERMINAL 3 "TERMINAL 2 OF THE A/C
WATER TEMP. SW "TERMINAL 1 "GROUND, AND THE FAN NO. 1 RELAY AND THE FAN NO. 2 RELAY ARE TURNED ON.
AT THE SAME TIME THAT THIS CURRENT FLOWS, CURRENT FROM THE ECU-IG FUSE FLOWS TO THE E/G MAIN RELAY (COIL
SIDE) "GROUND, AND THE E/G MAIN RELAY IS TURNED ON. AS A RESULT, CURRENT FROM THE ALT FUSE FLOWS TO THE CDS
FA N FUSE AND RDI FAN FUSE.
*LOW SPEED OPERATION
WHEN THE IGNITION SW IS TURNED ON AND THE A/C IS ACTIVATED, CURRENT FLOWS FROM THE MG/C RELAY (POINT SIDE) "
THE FAN NO. 3 RELAY (COIL SIDE) "GROUND, AND THE FAN NO. 3 RELAY IS TURNED ON. AS A RESULT, CURRENT FROM THE
CDS FAN FUSE FLOWS TO TERMINAL 2 OF THE A/C CONDENSER FAN MOTOR "TERMINAL 1 "THE FAN NO. 2 RELAY (POINT
SIDE) "THE FAN NO. 3 RELAY (POINT SIDE) "TERMINAL 2 OF THE RADIATOR FAN MOTOR "TERMINAL 1 "GROUND, AND
BOTH OF THE FAN MOTORS, WITH THE RESULT THAT THE FANS ARE ACTIVATED AT LOW SPEED.
IF THE ENGINE COOLANT TEMPERATURE IS APPROX. 90
C (194
F) OR LESS, AND THE REFRIGERANT PRESSURE IS APPROX.
15.5 KG/CM
2 (1323 KPA, 191.7 PSI) OR LESS, BOTH THE A/C WATER TEMP. SW AND THE A/C SINGLE PRESSURE SW ARE CLOSED,
SO THAT THE FAN NO. 1 RELAY AND THE FAN NO. 2 RELAY ARE TURNED ON. AS A RESULT, BOTH OF THE FAN MOTOR OPERATE
AT LOW SPEED.
*HIGH SPEED OPERATION
WHEN, DURING A/C OPERATION, THE REFRIGERANT PRESSURE BECOMES HIGHER THAN ORDINARY LEVEL (APPROX. 15.5
KG/CM
2 (1323 PSI. 191.7 KPA)), THE A/C SINGLE PRESSURE SW IS TURNED OFF. AS A RESULT, THE FAN NO. 1 RELAY AND THE
FAN NO. 2 RELAY ARE TURNED OFF, AND THE CURRENT FLOWS FROM THE RDI FAN FUSE TO FAN NO. 1 RELAY (POINT SIDE) "
TERMINAL 2 OF THE RADIATOR FAN MOTOR "TERMINAL 1 "GROUND, AND CURRENT FROM THE CDS FAN FUSE FLOWS TO
TERMINAL 2 OF THE A/C CONDENSER FAN MOTOR "TERMINAL 1 "THE FAN NO. 2 RELAY (POINT SIDE) "GROUND, AND TO
BOTH OF THE FAN MOTORS IN PARALLEL, THUS CAUSING THE FAN MOTORS TO OPERATE AT HIGH SPEED.
NOTE THAT, BECAUSE THE CURRENT FLOWS IN THE SAME MANNER EVEN IF THE COOLANT TEMPERATURE IS APPROX. 90
C
(194
F) OR HIGHER, THE FAN MOTORS STILL OPERATE AT HIGH SPEED.
A 3 A/C SINGLE PRESSURE SW
2-3 : OPEN ABOVE APPROX. 15.5 KG/CM2 (191.7 PSI, 1323 KPA)
CLOSE BELOW APPROX. 12.5 KG/CM2 (142 PSI, 980 KPA)A 4 A/C WATER TEMP. SW
1-2 : OPEN ABOVE APPROX. 90
C (194
F)
CLOSED BELOW APPROX. 83
C (181.4
F)
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A 128F 728R 129
A 328F 831
A 428J 131
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
223R/B NO. 2 (ENGINE COMPARTMENT LEFT)
625R/B NO. 6 (ENGINE COMPARTMENT LEFT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1A20INSTRUMENT PANEL WIRE AND J/B NO.1 (LOWER FINISH PANEL)
1E20FUSE BLOCK ASSY WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB236ENGINE ROOM MAIN WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA34RADIATOR RIGHT
EB34RADIATOR LEFT
SYSTEM OUTLINE
SERVICE HINTS

164
J GROUND POINT
FRONT TURN SIGNAL
LIGHT LH AN D FRO NT
PARKING LIG HT LH
FRONT TURN SIGNAL
LIGHT RH AND FRONT
PARKING LIGHT RH
FRONT SIDE MARKER
LIGHT RH
FRONT SIDE MARKER
LIGHT LH
BRAKE FLUID LEVEL
WARNING SW
ST RELAY
E/G MAIN RELAY
FRON T W IPE R M O TO RVSV (
CENTER DIFF.
LOCK NO. 1)
VSV (
CENTER DIFF.
LOCK NO. 2)
E FI M A IN R E LA Y
FAN NO. 2 RELAY
FAN NO. 3 RELAY
ABS RELAY
ABS ACTUATOR
(
GND)
(
GND)
RADIATOR FAN MOTOR
DATA LINK
CONNECTOR 1
OXYGEN SENSOR
(
BANK 1 SENSOR 1)
OXYGEN SENSOR
(
BANK 1 SENSOR 2)
COMBINATION M ETER
HIGH MOUNTED STOP
LIGHT
BACK DOOR OPEN
DETECTION SW
REAR W INDOW
DEFOGGER (
-)
LICENSE PLATE
LIGHT A/C W ATER TEMP. SW
DATA LINK
CONNECTOR 3
NOISE FILTER
(
IG NITION SY STEM)
ENGINE
CONTROL
MODULE
ENGINE CONTROL
MODULE
REAR COMBINATION
LIGHT RH
REAR SIDE M ARKER
LIGHT RH
REAR COMBINATION
LIGHT LH
FUEL PUM P
REAR SIDE M ARKER
LIGHT LHEA110
I 5
EA EBE 1 A 2
26 6
6
W-B W-B
W-B
W-B
W-B W-B W-B W-B W-B W-B
W-B
W-B
W-B
W-B
W-B W-B
W-B
W-B
W-B
W-B W-B W-B W-B
W-B
W-B W-BABS ECU (
4W D M /T) (
4W D M /T)(
4W D M /T)
(
4W D M /T)
EC IG211
A BR
BR
BRBR
BR
BR
BR
IG 27
I 5 BR BR BR
BR BR BR BR (
E1)
(
EO1)
(
E02)
(
E03)
BH BI BJB10 B10
BL21 BK2 2
W-B W-B W-B W-B
W-B
W-BB W-B W-B
W-B W-B W-B W-B
W-B
W-B W-B
W-B
TIO N
NECTOR
JUNC TIO N
CONNECTOR J 2
A
A
A
A
A
A
AA
A
A
A
JUNC
CON J 1
A
A
AA
A
A