audio TOYOTA LAND CRUISER 1996 J80 Workshop Manual

IN0IO−01
BO4111
Negative Cable
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INTRODUCTION FOR ALL OF VEHICLES
IN−9
9
Author: Date:
1996 LAND CRUISER (RM451U)
FOR ALL OF VEHICLES
PRECAUTION
1. FOR VEHICLES EQUIPPED WITH SRS AIRBAG AND
SEAT BELT PRETENSIONER
(a) The LAND CRUISER is equipped with an SRS (Supple-
mental Restraint System), such as the driver airbag and
front passenger airbag assembly.
Failure to carry out service operations in the correct se-
quence could cause the supplemental restraint system to
unexpectedly deploy during servicing, possibly leading to
a serious accident.
Further, if a mistake is made in servicing the supplemental
restraint system, it is possible the SRS may fail to operate
when required. Before servicing (including removal or
installation of parts, inspection or replacement), be sure
to read the following items carefully, then follow the cor-
rect procedure described in this manual.
(b) GENERAL NOTICE (1) Malfunction symptoms of the supplemental re-straint system are difficult to confirm, so the diag-
nostic trouble codes become the most important
source of information when troubleshooting. When
troubleshooting the supplemental restraint system,
always inspect the diagnostic trouble codes before
disconnecting the battery (See page DI−240).
(2) Work must be started after 90 seconds from the
time the ignition switch is turned to the ”LOCK” posi-
tion and the negative ( −) terminal cable is discon-
nected from the battery.
(The supplemental restraint system is equipped
with a back−up power source so that if work is
started within 90 seconds of disconnecting the neg-
ative (−) terminal cable from the battery, the SRS
may deploy.)
When the negative (−) terminal cable is discon-
nected from the battery, memory of the clock and
audio systems will be cancelled. So before starting
work, make a record of the contents memorized by
the each memory system. Then when work is fin-
ished, reset the clock and audio systems as before.
To avoid erasing the memory of each memory sys-
tem, never use a back− up power supply from anoth-
er battery.
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BE2826
Cassette Tape Slot Cover
IN−16
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INTRODUCTION FOR ALL OF VEHICLES
16
Author: Date:
1996 LAND CRUISER (RM451U)
6. FOR VEHICLES WITH AN AUDIO SYSTEM WITH
BUILT−IN ANTI−THEFT SYSTEM
Audio System displaying the sign ANTI −THEFT SYSTEM
shown on the left has a built −in anti −theft system which makes
the audio system soundless if stolen.
If the power source for the audio system is cut even once, the
anti0theft system operates so that even if the power source is
reconnected, the audio system will not produce any sound un-
less the ID number selected by the customer is input again. Ac-
cordingly, when performing repairs on vehicles equipped with
this system, before disconnecting the battery terminals or re-
moving the audio system the customer should be asked for the
ID number afterwards, or else a request made to the customer
to input the ID number. For the method to input the ID number
or cancel the anti−theft system, refer to the Owner’s Manual.
ANTI-THEFTSYSTEM
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BE1LS−01
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BODY ELECTRICAL BODY ELECTRICAL SYSTEM
BE−1
1139
Author: Date:
1996 LAND CRUISER (RM451U)
BODY ELECTRICAL SYSTEM
PRECAUTION
Take care to observe the following precautions when performing inspections o\
r removal and replacement
of body electrical related parts.
1. HEADLIGHT SYSTEM
Halogen bulbs have pressurized gas inside and require special handling. They ca\
n burst if scratched or
dropped. Hold a bulb only by its plastic or metal case. Don’t touch the glass\
part of a bulb with bare hands.
2. SRS (SUPPLEMENTAL RESTRAINT SYSTEM)
The LAND CRUISER is equipped with an SRS (Supplemental Restraint System) such as the driver airbag
and front passenger airbag. Failure to carry out service operation in th\
e correct sequence could cause the
SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (in\
-
cluding removal or installation of parts, inspection or replacement), be sure t\
o read the precautionary notices
in the RS section.
3. AUDIO SYSTEM
If the negative (−) terminal cable is disconnected from the battery, the preset AM, FM 1 and FM 2 stations
stored in memory are erased, so be sure to note the stations and reset them af\
ter the negative ( −) terminal
cable is reconnected to the battery.
4. MOBILE COMMUNICATION SYSTEM
If the vehicle is equipped with a mobile communication system, refer to \
precautions in the IN section.
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Z06300
BrightDark 2
3
Extinguished
1
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BODY ELECTRICAL COMBINATION METER
BE−41
1996 LAND CRUISER (RM451U)
25. INSPECT ENGINE OIL LEVEL WARNING CIRCUIT
Disconnect the switch connector and inspect the connector on
wire harness side, as shown.
Tester connectionConditionSpecified condition
2 − GroundConstantContinuity
If continuity is not as specified, inspect the wire harness or
ground point.
26. INSPECT ENGINE OIL LEVEL WARNING LIGHT
(a) Disconnect the connector from the switch.
(b) Ground terminal 1 on the wire harness connector.
(c) Turn the ignition switch ON, and check that the warning
light lights up approximately 40 seconds later.
If the warning light does not light up, inspect bulb or wire har-
ness.
27. INSPECT LIGHT CONTROL RHEOSTAT
(a) Connect terminals 1 and 3 through a 3.4 W test bulb.
(b) Connect the positive (+) lead from the battery to terminal
1 and the negative ( −) lead to terminal 2.
(c) Turn the rheostat knob to fully counterclockwise, and
check that the test bulb goes out.
(d) Gradually turn the rheostat knob to clockwise, and check
that the test bulb brightness changes from dark to bright.
If operation is not as specified, replace the rheostat.
HINT:
Adjust the brightness of illumination lights by rheostat.
A/C Control Assembly
Antenna Switch
Ash Receptacle
Audio
Center Diff. Lock Switch
Cigarette Lighter
Defogger Switch
Hazard Warning Switch
Shift Lever
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BE0SA−01
30 kHz300 kHz 3 MHz 30 MHz300 MHz
LF MF HFVHF
AM FM
Frequency modulation
Frequency
Designation
Radio wave
Modulation
Amplitube modulation
BE2818
FM (Stereo)
FM (Monaural) AM
BE2819
Fadinglonosphere
BE−70
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BODY ELECTRICAL AUDIO SYSTEM
1208
Author: Date:
1996 LAND CRUISER (RM451U)
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 dif ferences 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 (”noise”)
easily.
3. RECEPTION PROBLEMS
Besides the problem of static, there are also the problems
called ”fading”, ”multipath” and ”fade out”. These problems \
are
caused not by electrical noise but by the nature of the radio
waves themselves.
(1) FadingBesides 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 ”fading”.
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BE2820
Multipath
BE2821
Fade Out
N17398
Example :HeadCapstan
Pinch Roller
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BODY ELECTRICAL AUDIO SYSTEM
BE−71
1209
Author: Date:
1996 LAND CRUISER (RM451U)
(2) Multipath
One type of interference caused by the bounce of
radio waves off of obstructions is called ”multipath”.
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 ”fade out”.
4. COMPACT DISC PLAYER
Compact Disc (hereafter called ”CD”) Players use a laser beam
pick−up to read the digital signals recorded on the CD and re-
produce analog signals of the music, etc. There are 4.7 in. (12
cm) and 3.2 in. (8 cm) discs in the CD player.
HINT:
Never attempt to disassemble or oil any part of the player unit.
Do not insert any object other than a disc into the magazine.
NOTICE:
CD players use an invisible laser beam which could cause
hazardous radiation exposure. Be sure to operate the play-
er correctly as instructed.
5. Tape Player/Head Cleaning: MAINTENANCE
(a) Raise the cassette door with your finger.
Next, using a pencil or similar object, push in the guide.
(b) Using a clean ing pen or cotton applicator soaked in clean-
er, clean the head surface, pinch rollers and capstans.
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BE4331
BE−72
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BODY ELECTRICAL AUDIO SYSTEM
1210
Author: Date:
1996 LAND CRUISER (RM451U)
6. CD Player/Disc Cleaning:
MAINTENANCE
If the disc gets dirty, clean the disc by wiping the surface from
the center to outside in the radial directions with a soft cloth.
NOTICE:
Do not use a conventional record cleaner or anti −static pre-
servative.
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BE1MR−01
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BODY ELECTRICAL AUDIO SYSTEM
BE−73
1996 LAND CRUISER (RM451U)
TROUBLESHOOTING
NOTICE:
When replacing the internal mechanism (computer part) of the audio system, be careful that no part
of your body or clothes comes in contact with the terminals of the leads from the IC, etc. of the re-
placement part (spare part).
HINT:
This inspection procedure is a simple troubleshooting which should be carried\
out on the vehicle during sys-
tem operation and is based on the assumption that the cause of trouble lies\
with the system components
(except for the wires and connectors, etc.).
Always inspect the trouble taking the following items into consideration\
.
Open or short circuit of the wire harness
Connector or terminal connection fault
ProblemNo.
RadioNo power coming in.1
Power coming in, but radio not operating.2
Noise present, but AM − FM not operating.3
Either speaker does not work.4
Either AM or FM does not work.5
Reception poor (Volume faint).5
Few preset tuning bands.5
Sound quality poor.6
Cannot set station select button.7
Preset memory disappears.7
Tape PlayerCassette tape cannot be inserted.8
Cassette tape inserts, but no power.9
Power coming in, but tape player not operating.10
Either speaker does not work.11
Sound quality poor (Volume faint).12
Tape jammed, malfunction with tape speed or auto − reverse.13
APS, SKIP, RPT buttons not operating.14
Cassette tape will not eject.15
CD PlayerCD cannot be inserted.16
CD inserts, but no power.17
Power coming in, but CD player not operating.18
Sound jumps.19
Sound quality poor (Volume faint).20
Either speaker does not work.21
CD will not eject.22
AntennaAntenna does not fully extend of fully retract.23
Antenna − related.24
NoiseNoise produced by vibration or shock while driving.25
Noise produced when engine starts.26
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BE−74
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BODY ELECTRICAL AUDIO SYSTEM
1996 LAND CRUISER (RM451U)
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BODY ELECTRICAL AUDIO SYSTEM
BE−75
1996 LAND CRUISER (RM451U)
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