2000 TOYOTA CAMRY radiator

: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1C20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1D20Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
1J20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1R20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
ID140Floor Wire and Cowl Wire (Left Kick Panel)
IG340Instrument Panel Wire and Cowl Wire (Under the Blower Motor)
II342Engine Wire and Cowl Wire (Under the Blower Motor)
IK242Engine Room Main Wire and Cowl Wire (Right Kick Panel)IK342Engine Room Main Wire and Cowl Wire (Right Kick Panel)
IL142Floor No.2 Wire and Cowl Wire (Right Kick Panel)
: GROUND POINTS
CodeSee PageGround Points Location
EA36 (1MZ±FE)Right Radiator Side SupportEA38 (5S±FE)Right Radiator Side Support
EC36 (1MZ±FE)Surge Tank RHEC38 (5S±FE)Intake Manifold
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E136 (1MZ±FE)Engine Room Main WireE236 (1MZ±FE)Engine Room Main WireE138 (5S±FE)Engine Room Main WireE238 (5S±FE)Engine Room Main Wire
1 2 X 4 5 6 7 8 9 X 11 12 X 14 15
X 21 X X X X X
X X X X X16 17 18 1912121 2 BLACK GRAY GRAY
A25
1 2XX

X
X
X
XX11

XXX
16 X XX X


X


7
4







A26BROWN (1MZ±FE) BLACK
A6 A9 A10
C10 D1

: GROUND POINTS
CodeSee PageGround Points Location
EB36 (1MZ±FE)Left Radiator Side SupportEB38 (5S±FE)Left Radiator Side Support
EC38 (5S±FE)Intake Manifold
ED36 (1MZ±FE)Rear Side of the Surge Tank
IF40Left Kick Panel
IG40Instrument Panel Brace LH
IH40Instrument Panel Brace RH
121213 9 8 7 6 5 4 3 2 1 10111213 12 8 7 5 4 3 2 1 9 10 116
16 11 10 9 8 5 4 3 2 1 12131467 1516 14 10 9 7 6 3 2 1 1112138 45 15
13 9 8 7 6 5 4 3 2 1 10111213 12 8 7 5 4 3 2 1 9 10 116
X
XX


8
XX


X


18


X

4
XXXX X
X X




14






12123



B B









BAAA AA
AAAAAAAAX X






DDDX







BBB



C7(TMMK Made) BLUEC8 (A)
C9 (B)
(TMMK Made) BROWNC10 (C)
(TMC Made) GRAY
D6 (A)
BLACK
F14 D10
BLACK
(Hint : See Page 7)J2BLACK ORANGE
(Hint : See Page 7)
(Hint : See Page 7)J4 J5GRAY
(Hint : See Page 7)J7 (A) B2 C8 (A)
C9 (B)
C10 (C)
D6 (B)
GRAY (TMC Made) BLUE
(TMC Made) (TMMK Made)
(TMC Made) BROWN
(TMMK Made)

RADIATOR FAN AND CONDENSER FAN
40A
AM130A
CDS
15A
ECU±IG
1A 61K 1
15 2311
1115 23
4 11
111 13 4252K 6
2B 22F423 14
2F 22G1 30A
RDI
2 3
1 21 1 2
E 4 E 32C 12G 72C22H2
1B 11K 2
EA1 1IK1 5 IK2 7
II1 1
EA1 2 F 1F2D1
A 1
EB1 2
B±G B±R
B±R
B±R
W±B W±BB±R W
B±Y B±R
L G± W
W± BL±W L±W W± B
W±BR G±W
B±R L
B±R L
B±WL±Y
L L±Y
L
W± B
W± BW±B
W±BB±R W±RB±R G±W
(
1 MZ± FE) (
1 MZ± FE)L
(
1MZ±FE)
(
1MZ± FE) (
1 MZ± FE)
(
5S±FE)
(
1 MZ± FE)
(
5S±FE)
21
2
1
A 3
A/C SINGLE
PRESSURE SW W 4
WAT ER TEMP.
SW NO. 1
D 3
DIODE
(
A/C) R 1
RADIATOR
FAN MOTOR
WATER
TEMP. SW NO. 2 W 5
A/C CONDENSER
FAN MOTOR A 1FUSIBLE LINK
BL OC KIGNITION SW I16
FAN
NO. 1
RELAY
ENGINE
MAIN
RELAY
FROM MG CLT
RELAY
FA N
NO. 3
RELAY
FAN NO. 2 RELAY
BATTERY 100A
AL T
FL MAI N
3. 0W
MGC
(
1MZ±FE) 24AM1ACC
IG1
1 22 1
2J 13
II2 1
G±W G±W
CF
(
1MZ±FE) (
1MZ±FE)
E 29 D F 4
A, F 7
F 9 F
* 1 : AUTOMA TI C A/ C
* 2 : MANUAL A/C
E11
ENGINE CONTROL
MODULEE ,
A12
A/C AMPLIFIERA
A34
A/C CONTROL
AS SE MB LYB
A 12(
*2) B 2(
*1)M M

FAN MOTOR OPERATION (1MZ±FE)
With the ignition SW turned on, the current through the ECU±IG fuse flows to the FAN NO.1 relay (Coil side), FAN NO.2 relay
(Coil side) and FAN NO.3 relay (Coil side). Furthermore, the current through the FAN NO.1 relay (Coil side) or the FAN NO.2
relay (Coil side) flows to TERMINAL 3 of the A/C single pressure SW to TERMINAL 2 to TERMINAL 2 of the water temp. SW
No.1 to TERMINAL 1 to GROUND, causing the FAN NO.1 relay to turn off and the FAN NO.2 relay to turn on.
1. LOW SPEED OPERATION
Only when the A/C system is activated or the water temp. SW No.2 is turned on, the A/C condenser fan motor and the
radiator fan motor rotates at low speed.
When the A/C system is activated, the current from ECU±IG fuse flows to the FAN NO.3 relay (Coil side) to TERMINAL 1 of
the diode (A/C) to TERMINAL 2 to TERMINAL (A)12 of the A/C amplifier (Manual A/C) or (B) 2 of the A/C control assembly
(Automatic A/C) causing the FAN NO.3 relay to turn on. As a result, the current through the CDS fuse flows to TERMINAL 2
of the A/C condenser fan motor to TERMINAL 1 to TERMINAL 3 of the FAN NO.2 relay to TERMINAL 5 to TERMINAL 5 of
the FAN NO.3 relay to TERMINAL 3 to TERMINAL 2 of the radiator fan motor to TERMINAL 1 to GROUND. As this flowing in
series for the motors, the motors rotate at low speed.
When the water temp. SW No.2 is turned on, the current from ECU±IG fuse flows to the FAN NO.3 relay (Coil side) to
TERMINAL 1 of the water temp. SW No.2 to GROUND, causing the FAN NO.3 relay to turn on. As a result, the current
through the CDS fuse flows the same route as above, rotating the motors at low speed.
2. HIGH SPEED OPERATION
Only when the A/C single pressure SW is turned off or the water temp. SW No.1 is turned off, the A/C condenser fan motor
and the radiator fan motor rotate at high speed.
When the A/C single pressure SW is turned off, the current from the RDI fuse flows to the FAN NO.1 relay (Point side) to
TERMINAL 2 of the radiator fan motor to TERMINAL 1 to GROUND. At the same time, the current from the CDS fuse flows
to TERMINAL 2 of the A/C condenser fan motor to TERMINAL 1 to TERMINAL 3 of the FAN NO.2 relay to TERMINAL 4 to
GROUND.
As the current flowing in parallel for the motors as above, the motors rotate at high speed.
FAN MOTOR OPERATION (5S±FE)
With the ignition SW turned on, the current through the ECU±IG fuse flows to the FAN NO.1 relay (Coil side), FAN NO.2 relay
(Coil side). furthermore, the current through the FAN NO.1 relay (Coil side) or the FAN NO.2 relay (Coil side) flows to
TERMINAL 3 of the A/C single pressure SW to TERMINAL 2 to TERMINAL 2 of the water temp. SW No.1 to TERMINAL 1 to
GROUND, causing the FAN NO.1 relay to turn off and the FAN NO.2 relay to turn on.
1. LOW SPEED OPERATION
When the ignition SW is turned on and the A/C system is activated, the A/C condenser fan motor and the radiator fan motor
rotates at low speed.
When the A/C system is activated, the current from MG CLT relay flows to the FAN NO.3 relay (Coil side) to GROUND,
causing the FAN NO.3 relay to turn on. As a result, the current through the CDS fuse flows to TERMINAL 2 of the A/C
condenser fan motor to TERMINAL 1 to TERMINAL 3 of the FAN NO.2 relay to TERMINAL 5 to TERMINAL 5 of the FAN
NO.3 relay to TERMINAL 3 to TERMINAL 2 of the radiator fan motor to TERMINAL 1 to GROUND. As this flowing in series
for the motors, the motors rotate at low speed.
2. HIGH SPEED OPERATION
Only when the A/C single pressure SW is turned off or the water temp. SW No.1 is turned off, the A/C condenser fan motor
and the radiator fan motor rotate at high speed.
When the A/C single pressure SW is turned off, the current from the RDI fuse flows to the FAN NO.1 relay (Point side) to
TERMINAL 2 of the radiator fan motor to TERMINAL 1 to GROUND. At the same time, the current from the CDS fuse flows
to TERMINAL 2 of the A/C condenser fan motor to TERMINAL 1 to TERMINAL 3 of the FAN NO.2 relay to TERMINAL 4 to
GROUND.
As the current flowing in parallel for the motors as above, the motors rotate at high speed.
A3 A/C SINGLE PRESSURE SW
3±2 : Open above approx. 15.5 kgf/cm2
(224 psi, 1520 kpa)
Closed below approx. 12.5 kgf/cm2 (181 psi, 1225 kpa)
W4 WATER TEMP. SW NO.1
2±1 : Open above approx. 95°C (203° F)
W5 WATER TEMP. SW NO.2 (1MZ±FE)
1±GROUND : Closed above approx. 90°C (194°F)
SYSTEM OUTLINE
SERVICE HINTS

RADIATOR FAN AND CONDENSER FAN
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A126 (1MZ±FE)E11E30I1630A128 (5S±FE)F4A26 (1MZ±FE)R127 (1MZ±FE)
A326 (1MZ±FE)F4A28 (5S±FE)R129 (5S±FE)A328 (5S±FE)F7D26 (1MZ±FE)W427 (1MZ±FE)
A12A30F7D28 (5S±FE)W429 (5S±FE)
A34B30F9F26 (1MZ±FE)W527 (1MZ±FE)
D326 (1MZ±FE)F9F28 (5S±FE)
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
124Engine Room R/B No.1 (Engine Compartment Left)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1A
1B20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1K
()
2B
2C
2F22Engine Room Main Wire and Engine Room J/B No.2 (Engine Compartment Left)
2G
gg(g)
2H
2J22Cowl Wire and Engine Room J/B No 2 (Engine Compartment Left)2K22Cowl Wire and Engine Room J/B No.2 (Engine Compartment Left)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EA136 (1MZ±FE)Engine Room Main Wire and Engine Room Main No 3 Wire (Radiator LH)EA138 (5S±FE)Engine Room Main Wire and Engine Room Main No.3 Wire (Radiator LH)
II142Engine Wire and Cowl Wire (Under the Blower Motor)II242Engine Wire and Cowl Wire (Under the Blower Motor)
IK142Engine Room Main Wire and Cowl Wire (Right Kick Panel)IK242Engine Room Main Wire and Cowl Wire (Right Kick Panel)
: GROUND POINTS
CodeSee PageGround Points Location
EB36 (1MZ±FE)Left Radiator Side SupportEB38 (5S±FE)Left Radiator Side Support
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E336 (1MZ±FE)Cowl WireE436 (1MZ±FE)Engine Room Main WireE338 (5S±FE)Cowl WireE438 (5S±FE)Engine Room Main Wire

: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1R
1V20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1W
()
2C22Engine Room Main Wire and Engine Room J/B No.2 (Engine Compartment Left)
2J22Cowl Wire and Engine Room J/B No 2 (Engine Compartment Left)2K22Cowl Wire and Engine Room J/B No.2 (Engine Compartment Left)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EB236 (1MZ±FE)Cowl Wire and Engine Room Main Wire (Under the Engine Room J/B No.2)
IG140Instrument Panel Wire and Cowl Wire (Lower Finish Panel)
IK1
IK242Engine Room Main Wire and Cowl Wire (Right Kick Panel)
IK3
g(g)
: GROUND POINTS
CodeSee PageGround Points Location
EB36 (1MZ±FE)Left Radiator Side Support
IG40Instrument Panel Brace LH
II40Cowl Side Panel RH
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
I742Cowl WireI942Cowl WireI842Cowl WireI1042Cowl Wire
12
X41



412123456712
12341

34X67891011
13
14 15
16 17 18 19 20 X X 23XX26
8910X X234
56 7
13 X14X16
12
1X3X5671
2345
12
X2
XXX6
23 GRAY BLACKDARK GRAY
BLACKBLACK BLACK
BLACKORANGE
A2 A3 A13 A20 A30
A33 A34 (A) A35 (B) A36 A37
A38 A39 B3 B8 D3
2 1

AIR CONDITIONING (MANUAL A/C)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1R20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1W20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
2C22Engine Room Main Wire and Engine Room J/B No.2 (Engine Compartment Left)
2K22Cowl Wire and Engine Room J/B No.2 (Engine Compartment Left)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EB136 (1MZ±FE)EB138 (5S±FE)Cowl Wire and Engine Room Main Wire (Under the Engine Room J/B No 2)
EB236 (1MZ±FE)Cowl Wire and Engine Room Main Wire (Under the Engine Room J/B No.2)
EB238 (5S±FE)
II242Engine Wire and Cowl Wire (Under the Blower Motor)II342Engine Wire and Cowl Wire (Under the Blower Motor)
IK242Engine Room Main Wire and Cowl Wire (Right Kick Panel)
: GROUND POINTS
CodeSee PageGround Points Location
EB36 (1MZ±FE)Left Radiator Side SupportEB38 (5S±FE)Left Radiator Side Support
EC38 (5S±FE)Intake Manifold
IG40Instrument Panel Brace LH
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
I342Cowl Wire
12
X4
X 4 X 2 1
78910X12 145
13
12
12

5
123456712
12
3XX61X3
45


8
23 GRAY BLACK ORANGE
A13 A14
A20 B3 B4 B5
ORANGE
1



4
A2 A3 A12
D3

I GROUND POINT
FRONT TURN SIGNAL
LIGHT AND PARKING
LIGHT LH
FRONT TURN SIGNAL
LIGHT AND PARKING
LIGHT RH
ENGINE HOOD
COURTESY SW
RADIATOR FAN
MOTOR
WASHER LEVEL
WARNING SW
WATER TEMP. SW
NO. 1
FAN NO. 2 RELAYABS SOL RELAY
ABS AND
TRACTION
ECU (
GND2)
(
GND3)
(
GND1)
(
GND2)
FAN NO. 3 RELAY
HTR RELAY
DRL NO. 4 RELAY
ENGINE MAIN RELAY
EFI RELAY
FRONT WIPER MOTOR(
GND1)
ABS AND
TRACTION
ACTUATOR
ABS
ACTUATOR
AND ECU
ABS ACTUATOR
1
1
1
2EA12
E 4 E 4
E 4
E 4
E 4
E 4
E 4
E 4
E 4
2J 10
2F4
2C 5
EB3
E 1
E 1
E 1
E 1
E 1
EA W±B W±B W±B
W±B W±B W±B
W± B
W±B
W±B
W±B
W±BW±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
(
5S±FE)(
*1, *3)
(
*3)
(
*3)
(
*3)
(
*3)
(
*2 *4)
(
*2 *4)
(
*1)
(
*5)
W±B
W±B DAYTIME RUNNING
LIGHT RESISTORW±B
(
*5)
W±BE 1 2W±B
(
CALIFORNIA)A/F HTR RELAY
W±B
A/C DUAL PRESSURE
SW W±B
(
AUTOMATIC A/C)