Page 2 of 3115
I24827
w/ Navigation System:
Board
Knob
Integration Control Panel
Radio
Receiver Radio Receiver Bracket LH
A/C Amplifier
EMV
Radio Receiver
Bracket RH
Heater Control Housing
AC-98
- AIR CONDITIONINGAIR CONDITIONING CONTROL ASSEMBLY
2823 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 3 of 3115
I25152
w/o Navigation System:
Radio Receiver Bracket LH
Radio Receiver
Bracket RH
Radio
Receiver
Heater Control Housing
A/C Amplifier
Board
Integration Control Panel Knob
Knob
- AIR CONDITIONINGAIR CONDITIONING CONTROL ASSEMBLY
AC-99
2824 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 10 of 3115
AC3OZ-01
I2519412 Clips
I25522
I24447
I24448
I24449
AC-100
- AIR CONDITIONINGAIR CONDITIONING CONTROL ASSEMBLY
2825 Author: Date:
2004 LAND CRUISER (RM1071U)
REMOVAL
1. REMOVE CENTER RESISTORS
Disengage the 12 clips and remove the center resistors, then
disconnect the connectors.
2. REMOVE INTEGRATION CONTROL PANEL AS-
SEMBLY
(a) Remove the 4 bolts.
(b) Remove the integration control panel assembly, then dis-
connect the connectors.
3. w/ navigation system:
REMOVE A/C AMPLIFIER
(a) Disconnect the connector clamp.
(b) Remove the 3 screws, the 4 bolts and the radio receiver
bracket LH.
(c) Remove the 2 screws and the A/C amplifier.
4. w/ LEXUS navigation system:
REMOVE EMV
Remove the 3 screws, the 2 bolts and the EMV.
Page 11 of 3115
I24450
I25157
I25184
- AIR CONDITIONINGAIR CONDITIONING CONTROL ASSEMBLY
AC-101
2826 Author: Date:
2004 LAND CRUISER (RM1071U)
5. w/ navigation system:
REMOVE INTEGRATION CONTROL PANEL
6. Disconnect the connector clamps.
(a) Remove the screw, the 2 bolts and the radio receiver
bracket RH.
(b) Remove the integration control panel from the radio re-
ceiver.
7. w/o navigation system:
REMOVE INTEGRATION CONTROL PANEL
(a) Disconnect the connector clamp.
(b) Remove the 2 screws, 4 bolts and the radio receiver
bracket LH.
(c) Disconnect the connector clamp.
(d) Remove the 2 screws, 4 bolts and the radio receiver
bracket RH.
(e) Remove the integration control panel.
Page 154 of 3115
BE0G9-04
I09910
Antenna
Antenna Motor
View ºAº
View ºAºView ºBº
View ºCºView ºDº Passenger Airbag
Sensor Assembly
RainforcementPiller
Rear Door GlassFront Door Glass
View ºBº
View ºCº
View ºDº
Radio Assembly : Clamp
Radio assembly
Front Door Glass
Quater Window
Glass BE-174
- BODY ELECTRICALANTENNA
2547 Author: Date:
2004 LAND CRUISER (RM1071U)
ANTENNA
LOCATION
Page 155 of 3115

BE0N7-06
BE4671
Antenna Nut
BE5781
BE5780
BE4674
Twist
- BODY ELECTRICALANTENNA
BE-177
2550 Author: Date:
2004 LAND CRUISER (RM1071U)
REPLACEMENT
1. Auto antenna models:
REMOVE ANTENNA ROD
HINT:
Do this operation with the battery negative (-) cable connected
to the battery terminal.
(a) Remove the antenna nut.
(b) Turn the radio switch ºONº position.
(c) Turn the antenna switch to ºUPº.
(d) Catch the antenna rod by hand and turn the radio switch
ºOFFº.
(e) Try again to turn the radio switch ºONº and antenna switch
ºUPº.
(f) Remove antenna rod.
HINT:
The rod will extend fully and be released form the motor anten-
na.
NOTICE:
To prevent body damage when the antenna rod is released,
hold the rod while it comes out.
2. Auto antenna models:
INSTALL ANTENNA ROD
(a) Insert the cable of the rod until it reaches the bottom.
HINT:
When inserting the cable, the teeth on the cable must face
toward the rear of the vehicle.
Insert the antenna approx. 350 mm.
(b) Turn the radio switch to ºOFFº.
HINT:
In case the cable is not wound, twist it, as shown in the
illustration.
Even if the rod has not retracted fully, install the antenna
nut and inspect the antenna rod operation. It will finally re-
tract fully.
(c) Inspect the antenna rod operation by pushing the radio
wave band select buttons.
Page 156 of 3115

BE2E8-01
30 kHz 300 kHz 3 MHz 30 MHz 300 MHz
LF MF HF VHF
AM FM
Frequency modulation Frequency
Designation
Radio wave
Modulation Amplitude modulation
BE2818
FM (Stereo)
FM (Monaural)
AM
BE2819
Fading:lonosphere BE-124
- BODY ELECTRICALAUDIO SYSTEM
2497 Author: Date:
2004 LAND CRUISER (RM1071U)
AUDIO SYSTEM
DESCRIPTION
1. RADIO WAVE BAND
The radio wave bands used in radio broadcasting are as follows:
LF: Low Frequency
MF: Medium Frequency
HF: High Frequency
VHF: Very High Frequency
2. SERVICE AREA
There are great differences in the size of the service area for AM
and FM monaural. Sometimes FM stereo broadcasts cannot be
received even through AM can be received in very clearly.
Not only does FM stereo have the smallest service area, but it
also picks up static and other types of interference (ºnoiseº)
easily.
3. RECEPTION PROBLEMS
Besides the problem of static, there are also the problems
called ºfadingº, ºmultipathº and ºfade outº. These problems are
caused not by electrical noise but by the nature of the radio
waves themselves.
(1) Fading
Besides electrical interference, AM broadcasts are
also susceptible to other types of interference, es-
pecially at night. This is because AM radio waves
bounce off the ionosphere at night. These radio
waves then interfere with the signals from the same
transmitter that reach the vehicle's antenna directly.
This type of interference is called ºfadingº.
Page 157 of 3115

BE2820
Multipath
BE2821
Fade Out
Noise occurs at a specific place. Strong possibility of foreign noise.
There is a possibility that the same program is broadcasted
from different local stations, and that might be listening a
program from other station.
Strong possibility of the beat from a distant broadcasting.
Strong possibility of multipath noise and fading noise caused
by the changes of FM waves. Noise occurs when listening to faint
broadcasting.
Noise occurs only at night.
Noise occurs while driving on a partic-
ular area..
FM AM
HINT:
In the condition of noise occurrence does not meet any of the
above questionnaire, check the problems to ºReception
Problemº on the previous page.
- BODY ELECTRICALAUDIO SYSTEM
BE-125
2498 Author: Date:
2004 LAND CRUISER (RM1071U)
(2) Multipath
One type of interference caused by the bounce of
radio waves off of obstructions is called ºmultipathº.
Multipath occurs when a signal from the broadcast
transmitter antenna bounces off buildings and
mountains and interferes with the signal that is re-
ceived directly.
(3) Fade Out
Because FM radio waves are of higher frequencies
than AM radio waves, they bounce off buildings,
mountains, and other obstructions. For this reason,
FM signals often seem to gradually disappear or
fade away as the vehicle goes behind a building or
other obstruction. This is called ºfade outº.
4. NOISE PROBLEMS
(a) Questionnaire for nose:
It is very important for noise trouble shooting to have good
understanding of the claims from the customers. Refer to
the following questionnaire to diagnose the problem ac-
curately.