TOYOTA LAND CRUISER 1998 Factory Repair Manual

2004 LAND CRUISER (EWD548U)
364Air Conditioning (Front)
:Ground Points
CodeSee PageGround Points Location
EA76Front Right Side of Fender Apron
EC76Rear Bank of Right Cylinder Head
IF78Set Bolt of Cowl Side J/B LH
II78Set Bolt of Cowl Side J/B RH
BK86Front Side Under the Front Passenger's Seat
:Splice Points
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E1676Engine Room No.2 Wire

2004 LAND CRUISER (EWD548U)
365 Memo

2004 LAND CRUISER (EWD548U)
366Air Conditioning (Rear)
A45(
A)
, A46(
B)
, A47(
C)
C 12GND
IF A AVER2
17 C
AVER4
15 C
AVER5
14 C
A
W- B
W- B
W- B
W- B
J11
2D 2
W- B W- B
A 40RRMGV
IV4 22
LG- R LG- R
BW1 2
140A ALT 120A J/B NO. 2
F1 6
B- G
2C 17. 5A
AM1 2E 39
B- R
24AM1ACC
IG12E 37
L- B
2B 3
LG- R
LG- RL- B
L- B
I18
Battery 1Ignition SWA/C Control Assembly
Junction Connector
Fusib le
Link Block

2004 LAND CRUISER (EWD548U)
367
C 18VER1
4F 10
4C 2
IV4 18
W- B W- B
IV4 19 IV415 IV416 IV417 B 10FRCID
B 1FRCLK
B 2 FRCSD
(
Shielded)
B
W
R
10A
ECU- B2 From Power Source System (
See Page 94)
3Q 71 3K19 C 11+B
L- W L- W
94A 18 4A
2E 19
2Q 22
SB
C 22IG15A
A/C
2D 6
R- L
R- L W- B
B14
W- B
LG- R
BKA45(
A)
, A46(
B)
, A47(
C) L- B
L- B
L- W
W- B
R
W
B
W- B
LG- R W- B
L- W
W- B
W- B
SB
A/C Control Assembly
R WB (
Shielded) Junction
Connector J23(
B)
, J25(
A)
B F(
*2) A H(
*1)
B FA H
A H
B FA H(
*1)
B F(
*2)
* 2 : w/o Navigation System * 1 : w/ Navigation System

2004 LAND CRUISER (EWD548U)
368Air Conditioning (Rear)
3KA 14HRRH
18
3B 10
1B 71 1B52
50 1B 10A
RR
HTR From Power Source System
(
See Page 94)
L- B L- B
F
L
IA2 18
2 1
L- B
L- W
W- B
R
W
B
W- B
LG- R
L- B
L- B L
L
BJ 32
1A 16BLWRH
A 15VMRH
BL4 1BL42
BD3 19 18 BD3R- W
R- G R- W
R- G R- W
R- G W- B W- B
R25
L- W
W- B
R
W
B
W- B
LG- R R22
RR HTR
RelayA32(
A)
, A33(
B)
, A34(
C)
A/C Amplifier (
Rear)
Rear Heater
Blower Motor
Rear Heater Power Transistor4 F
L- B Junction
Connector J22 M

2004 LAND CRUISER (EWD548U)
369
A 18CID CLK
20 A CSD
19 A A 22GND +B
1A
BW1 6A 4BLWC
23
14
BW1 8
W- B W- BR R
BW1 5A 3VMC
W- L W- L
R16
BW1 10A 13HRRC
R- Y R- Y
23 41
2 1
L
R- L
B19
R14
R17
30A
RR A/CFrom Power Sour ce System
(
See Page 94)
3K 42
BW1 7
LG
LG LG
R- L
2 1
LG- R R- LW W
LG- RW- BB WR W- BL- WA32(
A)
, A33(
B)
, A34(
C)
L- W
W- B
R
W
B
R15
A/C Amplifier (
Rear)
Rear Cooler
Blower Motor
Rear Cooler
Magnetic ValveRear Cooler
Power Tr ansistor
Rear Cooler Relay
M

2004 LAND CRUISER (EWD548U)
370Air Conditioning (Rear)
MCool Warm
GND PT VZ MHOT MCOOL 3K 39
BW1 1
B- W
10A
ECU- IG2
3K 35 From Power Source System
(
See Page 94)
R- L
B- W
BW1 3A 7TER
Y Y
2 1
BW1 4
Y- G
R21
A 9SG1
BL1 7
BD3 2
B- W
Y- G
Y- G
BL4 7
BD3 16
GR - R
BL4 5
BD3 15
R- Y
BL4 4
BD3 14
Y
BL4 3
BD3 13
W- L
A 6TPH
A 5S51
A 12MHR
A 11MCR
351 2
R 9 2
GR- R
R- Y
Y
W- L GR - R
R- Y
Y
W- L Y- G Y- G
D
DD A
Y- GY- G Y- G
Y- G
IG1
Y- G A32(
A)
, A33(
B)
, A34(
C)
J224 A/C Amplifier (
Rear)
Rear Air Mix Control Servo Motor
Rear Evaporator Temp. Sensor
Junction
Connector
Junction
Connector J23(
B)
, J25(
A) (
*2) (
*1)
B CA C
A C(
*1)
B C(
*2) A C
B C
* 2 : w/o Navigation System * 1 : w/ Navigation System

2004 LAND CRUISER (EWD548U)
371
1
2BL4 6
BD3 17
GR- G
A 8TINR
GR- G GR- G Y- G
R26
Y- G
LO- I AUTO-I ME-I HI-I FACE-I
HotFOOT- I
Cool
AUTO
FootLO
Middle
HI
Fa ce
Bi- Level
B/L- I S5 T- SET SGB 12SG2
2 1B 7TRR
B13B 8TESTR
20 21
B G- Y
G- Y
L- O G- Y
L- O
B 4S52
22
Y- R Y- R
C 5 AUTO- I
7
L- R L- R
C 6LO- I
6
L- W L- W
C 7ME- I
5
L L
C 18HI- I
4
L L
C 15FACE- I
3
G G
C 16B/L- I
2
W- G W- G
C 17FOOT- I
1
W- R W- R
A32(
A)
, A33(
B)
, A34(
C)
R 8
R34
A/C Amplifier (
Rear)
Rear A/C Control SW
Rear Inlet Air Temp. Sensor
Room Temp. Sensor (
Rear)

2004 LAND CRUISER (EWD548U)
372Air Conditioning (Rear)
Illumination
AUTOOFFLO MiddleHI Face Bi- LevelFoo t
IG RG SRG FOOT- S B/L- S FACE- S HI- S ME- S LO- S OFF- S AUTO- SILLB13 B 1IG2
9
L- R L- R
B 5ILL+2
8
G G
C 8
10 RG
G- W
C 12FOOT- S
12
R- G R- G
C 11B/L- S
13
R- Y R- Y
C 10FACE- S
14
R- L R- L
C 9HI- S
15
GR- R GR- R
C 4ME- S
16
L- Y L- Y
C 3LO- S
17
GR GR
C 2OFF- S
18
Y- B Y- B
C 1 AUTO- S
19
W- G W- GG- W G- W
A32(
A)
, A33(
B)
, A34(
C)
R 8 11A/C Amplifier (
Rear)
Rear A/C Control SW

2004 LAND CRUISER (EWD548U)
373
1. Cooler and Heater Blower Operation
*Manual operation
When the blower control SW in the rear A/C control SW is set to any blower speed, a signal is sent to the A/C amplifier.
The A/C amplifier controls the power transistor and operates the rear cooler blower motor and rear heater blower motor at
the set speed.
*Auto operation
When the auto SW in the rear A/C control SW is operated, a signal is sent to the A/C amplifier. The A/C amplifier controls
the power transistor according to the signals from respective sensors, and operates the rear cooler blower motor and rear
heater blower motor.
2. Air Mix Control Servo Motor Control
When the temperature control lever in the rear A/C control SW is operated, a signal is sent to the A/C amplifier. The A/C
amplifier controls the rear air mix control servo motor to operate the damper until it reaches the temperature set by the
temperature control lever.
3. Air Conditioning Operation
The cooler and heater operation can be switched by the mode select SW in the rear A/C control SW.
A32 A/C Amplifier (Rear)
1-Ground : Always approx. 12 volts
2-Ground : Approx. 12 volts with ignition SW at ON or ST position
22-Ground : Always continuity
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A32A72J1171R1673
A33B72J2272R1773
A34C72J23B72R2173
A45A70J25A72R2273
A46B70R873R2573
A47C70R973R2673
F1668R1473R3473
I1870R1573
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
1B24Engine Room No.2 Wire and Engine Room J/B (Engine Compartment Left)
2B28Engine Room No 2 Wire and Cowl Side J/B LH (Left Kick Panel)2C28Engine Room No.2 Wire and Cowl Side J/B LH (Left Kick Panel)
2D28Dash Wire and Cowl Side J/B LH (Left Kick Panel)2E28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
2Q30Instrument Panel Integration Wire and Cowl Side J/B LH (Left Kick Panel)
3B40Engine Room No.2 Wire and Cowl Side J/B RH (Right Kick Panel)
3K40Floor No.2 Wire and Cowl Side J/B RH (Right Kick Panel)
3Q42Instrument Panel Integration Wire and Cowl Side J/B RH (Right Kick Panel)
4A
4C52Dash Wire and J/B No.4 (Instrument Panel Center)
4F
()
System Outline
Service Hints