TOYOTA HIGHLANDER 2001 Service Repair Manual

2005 HIGHLANDER (EWD592U)
292
Radiator Fan and Condenser Fan for 3MZ-FE
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E248 (3MZ-FE)Engine Room Main Wire

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MEMO

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Radiator Fan and Condenser Fan for 2AZ-FE
30A RDI
6
30A CDS
4
140A ALT
1
W
F 7
WY
51 3222
22
EB2 2
1 225 13
4 22
22 2
2G 32G82B3
2E 2
W- BR- Y
2 3
EH A
L- Y
R- W
W- B
R- YL- R
R- L
L- Y B- R B- RW
R- Y W- B
B- Y
R- Y
R- Y B- R B- RY
B- Y W- B
R- W BatteryFA N
NO. 3
RelayFAN
NO. 2
Relay
C 5
A 3
J 2 FL MAIN
3. 0W
2G 2
2F 4
W- B
W- B M
A
Single
Pressure SWCondenser Fan Motor
Fusible Link Block
Junction
Connector

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25 1322
22
R- Y
B- Y
1 2
B- Y L- W
W- B
EG
W- BR- W
B- Y2G 7
2A 82G 6
A A
IK2 7
Y B- RB- R
Y
B- R
B- R
B- R FAN NO. 1
Relay
R 1J 5
B- Y
R- Y
R- Y B- R B- RY
R- W10A
HEATER
1G 8
FAN
CFE 2
E 14 E19
C 82 1
G- B
E 2
THWBR
EB2 5MFrom Power Source System (
See Page 62)
E 7(
E)
, E 9(
C)
Engine Coolant
Temp. Sensor
Engine Contr ol
ModuleJunction
Connector
Radiator Fan
Motor
E 28
E2A 5
B 5
BR
Shor t Connector S28(
A)
, S29(
B)

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Radiator Fan and Condenser Fan for 2AZ-FE
The radiator fan motor and condenser fan motor operates according to the engine coolant temp. SW, A/C single pressure
SW, the engine system condition, and the A/C system condition. The FAN NO.1 relay, FAN NO.2 relay, FAN NO.3 relay are
turned on/off, to operate the fan motors at low speed (In series), or high speed (In parallel).
1. Low Speed Operation
Either when the A/C system is operating, the radiator fan motor and A/C condenser fan motor operates at low speed.
2. High Speed Operation
When either the engine coolant temp. SW or A/C single pressure SW is, or both of them are turned on, the radiator fan motor
and A/C condenser fan motor operate at high speed.
A3 Pressure SW
3-2 : Open above approx. 15.5 kgf/cm2 (220 psi, 1520 kpa)
Close below approx. 12.5 kgf/cm2 (178 psi, 1226 kpa)
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A340 (2AZ-FE)E9C42R141 (2AZ-FE)
C540 (2AZ-FE)F740 (2AZ-FE)S28A43
E240 (2AZ-FE)J241 (2AZ-FE)S29B43
E7E42J543
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
222Engine Room R/B (Engine Compartment Left)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1G29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
2A
2B
2E27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2F
gg(g)
2G
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EB250 (2AZ-FE)Engine Wire and Engine Room Main Wire (Front Side of Engine Room R/B)
IK254Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)
: GROUND POINTS
CodeSee PageGround Points Location
EG50 (2AZ FE)Under the Left HeadlightEH50 (2AZ-FE)Under the Left Headlight
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E250 (2AZ-FE)Engine Room Main Wire
System Outline
Service Hints

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MEMO

2005 HIGHLANDER (EWD592U)
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Automatic Air Conditioning
10A
HEATER
1K 13
IK4 1
25 413A A1G 8
3A 4
3J 7
IL2 2
A 7A2
IH1 2IL25
IH1 1
21
IH1 3
IAM B 14AMH
B 13AMC
B 12SG- 1
B 11S5- 1
IJ1 1IJ12IJ13IJ14IJ15B 10TP
IJ1 6B 5TE
A14
B
GR
P
O
SB
LG Y- G
Y
LG- R LG- R
P- L P- L
O O
5421 2
4
B 6A
3
B- Y
Y
B Y
BRJ 5
BR O
HR IG+H 9
LG W P- LB
W- B
YY
W
50A HTR
7F 7
4L 74H 7
IC
W- B
I12 W- B
B
I14
1 2
E12VMSI
G- Y
A 17BLW
1 GND
W- BB
3
+B
RB 7BBW- B
ILL+ ILL- ILL- ACC IG BLK STX ILL+ +B 16 12 13 1 2 15 14 6 7
LG- R
LG- R Control Panel
M From Power Source System (
See Page 62)
A10(
A)
, A11(
B)
A/C Control Assembly
Air Mix Control Servo Motor
Blower Motor
Blower Motor
Control
Evapor ator Temp. Sensor
Fusible
Link Block
Heater
Relay
Junction
Connector

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M B 8AOF
B 7AOD
B 1SG- 4
B 9S5- 4
IL2 15 IL24IL213 IL23IL214B 6TPO
A15
V
G
B
BR
R LG
L
W
B
G
54123A 4MR/F
A 6AIF
A 5AIR
A13 7. 5A
ECU- B
2A 47. 5A
RAD
NO. 2
1K 3
IC3 5
1K 23I11 1G 10 3A13
A 12
+BA 13
ACCB 3B4 B 15 B16
W- L
V BR W
GR
W
L
Y
W
S5- 3 TS SG- 3 TR
521
Y
W
B
YY
2 1
R 62 1A12
CLK DPD SWD HAZ GND SG 89101834Control Panel
A 11GND
3F 133J 6
IB
W- B W- B
A 14DIM
SB
T15DIM 6 From Power Source System (
See Page 62)
A10(
A)
, A11(
B)
A/C Control Assembly
A/C Solar Sensor
Air Inlet Control Servo Motor
Air Vent Mode Control Servo Motor
Room Temp. Sensor
Telltale Light
Assembly

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Automatic Air Conditioning
2B
B 1B
5IK332
B- R B
TAM MPD2 MPD1
E 28
BR BR
E2 * 4 : w/o Navigation System * 3 : w/ Navigation System * 2 : 2AZ- FE * 1 : 3MZ- FE
(
*2) (
*1)BR
BR
BR
EE 5B
5A
6 EB2
A 1
2
1
A 3G 5 A17
MPX2 MPX1 22 244
11
BR
BR
V(
*3) G(
*3) R BRP 5
3E 13J 12
G
2A 1A YIB2 8
4F 7
4A 5
IL2 12
B 2
A 9MPX-
Y
IB2 1
IF3 5
A 10
B 6
B 18 B2 2A8
22C 2E3
IK3 18
B 1C 23
IK3 2
1
4
EH A2 13EB2 9
ED A A
J 7
W
J 2 78 MPX1 MPX2
SB
YV
GR G(
*4)
MPX2
MPX1
MPX1
LCK1
BR BRW- B G L
W- L
B- Y A 2
OY-G
Y- G
OMG CLT
Relay IK27
23 15 B- R
MPX+
A 21 9 BIL2 1B 29
SB GR
MPX- MPX+Y
HP MPX2ACMG
Diode
(
Cooling Fan) Y- G
(
*1) B 9(
A)
, B10(
B)
E 6(
B)
, E 7(
E)
, E 9(
C)
A10(
A)
, A11(
B)
S30(
A)
, S31(
B)
Dual
S28(
A)
, S29(
B)
C11(
A)
, C12(
B)
A/C Ambient Temp. Sensor
A/C Magnetic Clutch
A/C Lock Sensor Pr essure SW
A/C Contr ol Assembly
Air bag Sensor
Assembly
Body ECU
Combination MeterEngine Control Module
Gateway ECU
Ju nctio n
ConnectorJunction
Connector Power Window Master SW
with ECU
Short ConnectorShort Connector
E14 : * 1
E 9 : * 2
BR
1 2Engine Coolant
Temp. Sensor E 2
E 19THW
G- B G- B BR
W- B
W- B
BR
(
*2) (
*1) (
*1)(
*2)

2005 HIGHLANDER (EWD592U)
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A3 Pressure SW
1-4 : Open with the pressure less than 2.0 kgf/cm2 (28 psi, 196 kpa) or above 32 kgf/cm2 (455 psi, 3138 kpa)
A10 (A) A/C Control Assembly
(A)12-Ground : Always approx. 12 volts
(A) 2-Ground : Approx. 12 volts with the ignition SW at ON position
(A) 11-Ground : Always continuity
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A138 (3MZ-FE)B742H943A140 (2AZ-FE)B9A42J239 (3MZ-FE)
A238 (3MZ-FE)B10B42J241 (2AZ-FE)A240 (2AZ-FE)C11A42J543
A338 (3MZ-FE)C12B42J743A340 (2AZ-FE)E238 (3MZ-FE)P544
A10A42E240 (2AZ-FE)R643
A11B42E6B42S28A43
A1242E7E42S29B43
A1342E9C42S30A43
A1442E1242S31B43
A1542F738 (3MZ-FE)T1543
A1742F740 (2AZ-FE)
B642G543
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1G29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1K28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
2A
2C27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2E
gg(g)
3A
3E30
3FInstrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3I31
()
3J31
4A
4F33Cowl Wire and Passenger Side J/B (Right Side of Grove Box)4HCowl Wire and Passenger Side J/B (Right Side of Grove Box)
4L32
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EB248 (3MZ-FE)Engine Wire and Engine Room Main Wire (Front Side of Engine Room R/B)EB250 (2AZ-FE)Engine Wire and Engine Room Main Wire (Front Side of Engine Room R/B)
IB252Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
IF352Instrument Panel Wire and Cowl Wire (Right Side of Instrument Panel J/B)
IH154Cowl Wire and A/C Sub No.2 Wire (Upper Portion of Right Instrument Panel Brace)
IJ154Instrument Panel Wire and A/C Sub No.3 Wire (Upper Portion of Right Instrument Panel Brace)
IK2
IK354Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)
IK4
g(g)
IL254Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
Service Hints