TOYOTA LAND CRUISER 1998 Factory Repair Manual
Page 201 of 3115
24 Power AmplifierPOWER COMIMG IN, BUT WOOFER (POWER) AMPLIFIER NOT
OPERATING
+ B wire harness faulty.
GND faulty.
ACC wire harness faulty.
Speaker wire harness faulty. GND faulty. Is tape player operating normally?
Check if ACC fuse is OK?Ye s
NG
No OK No
No
No
No OK
OK
OK Ye s
Ye s
Ye s
Ye sNG
NG
NG Check if RADIO, AMP fuse is OK?
Radio assembly faulty. Recheck system after repair.Replace fuse.
ACC wire harness faulty. Radio assembly faulty.
Replace fuse.
Is there continuity in speaker wire harness?
Temporarily install another speaker. Functions OK?
Hiss noise from speaker?Ye s
Ye s NoNo
No Ye s+B wire harness faulty.
Power amplifier faulty.
Recheck system after repair. Speaker faulty.
Is power supplied to ACC terminal of power amplifier?
Check if GND (wire harness side) of power amplifier
grounded normally? Is power supplied to +B terminal of power amplifier?
Is power supplied to ACC terminal of radio assembly?
Is power supplied to +B terminal of radio assembly?
Check if GND (wire harness side) of radio assembly
grounded normally?
- BODY ELECTRICALAUDIO SYSTEM
BE-165
2538 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 202 of 3115
Radio assembly faulty.
Power amplifier faulty.
Recheck system after repair. Temporarily install another speaker.
Function OK?25 Power Amplifier ANY SPEAKER DOES NOT WORK
Speaker wire harness faulty.
Speaker faulty. Is hiss noise produced by non-functioning speaker?
Does continuity exist in speaker wire harness? Is radio operating normally?
Ye sYe s
Ye s
Ye s No
No
NoNoRadio assembly faulty.
Recheck system after repair. BE-166
- BODY ELECTRICALAUDIO SYSTEM
2539 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 203 of 3115
26 Noise NOISE OCCURS
No
Ye s Does the noise occur only in the radio?
Does the noise occur in a particular place?
Is there any additional installation part
around the glass imprinted antenna?
(Sun shade film, telephone antenna etc.)
Does the noise occur even pulling out the
antenna cord from the radio?
Does the noise occur even after pulling out the
antenna terminal on the glass surface?
Isn't there any adhesive (Butyl rubber)
stuck on the bases of the antenna
terminal, defogger terminal and bus bar?
Does the condition get better by replacing
the antenna cord.
Noise rediates directly to the antenna from the
generation source.Replace the antenna cord. Failure of glass installation.
Must plane the butyl rubber. Noise mixing into the antenna cable. Check the radio. Influence of the film or the noise radiation
of the additional installation part. Does the noise stop by removing it? An electric environment.Refer to No.27. (It occurs in the cassette and CD.)
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s No
No
No
No
No
No
- BODY ELECTRICALAUDIO SYSTEM
BE-167
2540 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 204 of 3115
27 Noise NOISE PRODUCED BY VIBRATION OR SHOCK WHILE DRIVING
No
Ye s Is radio assembly properly installed?
Noise is produced from static eletricity accumulating in the vehicle body. With vehicles stationary lightly tap each system.
Is noise produced?Install properly.
Each system faulty. Is speaker properly installed?
No
No Ye s
Ye s
28 Noise NOISE PRODUCED WHEN ENGINE STARTS
NoYe s Whistling noise which becomes high-pitched when
accelerator strongly depressed, disappears shortly
after engine stops.Generator noise.
A/C noise.
Fuel gauge noise.
Horn noise.
Ignition noise.
Turn signal noise.
Washer noise.
Engine coolant temp. gauge noise.
Wiper noise. Whining noise occurs when A/C is operating.
Scratching noise occurs during sudden acceleration, driving on rough
roads or when ignition switch is turned ON.
Clicking sound is heard when horn button is pressed, then
released. Whirring/grating sound is heard when pushed
continuously.
Murmuring sound stops when engine stops.
Tick-tack noise occurs in co-ordination with blinking
offlasher.
Noise occurs during window washer operation.
Scratching noise occurs while engine is running,
and continues a while even after engine stops.
Scraping noise in line with wiper beat.
Other type of noiseYe s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s No
No
No
No
No
No
No
No
BE-168
- BODY ELECTRICALAUDIO SYSTEM
2541 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 205 of 3115
29 Steering Pad SwitchA AUDIO SYSTEM CANNOT BE OPERATED WITH STEERING PAD
SWITCH
No
Ye s Resistance of steering pad switch is OK?Steering pad switch faulty.
Wire harness faulty. Is wire harness between radio assembly and steering pad
switch OK?
No
Ye s
30 Rear Seat AudioQUALITY OF SOUND FROM HEADPHONE TERMINAL IS POOR OR NO SOUND
CAN BE HEARD
NoYe s Temporarity install another headphone. Function OK?Headphone faulty.
Wire harness faulty.
RSA panel faulty. Is wire harness between radio assembly and RSA
panel OK?
Ye s
No
Radio assembly faulty.
Temporarity install another RSA panel. Function OK?
Radio assembly faulty.
No
Ye s
- BODY ELECTRICALAUDIO SYSTEM
BE-169
2542 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 206 of 3115
BE01I-05
- BODY ELECTRICALBODY ELECTRICAL SYSTEM
BE-1
2374 Author: Date:
2004 LAND CRUISER (RM1071U)
BODY ELECTRICAL SYSTEM
PRECAUTION
HINT:
Take care to observe the following precautions when performing inspections or removal and replacement
of body electrical related parts.
1. HEADLIGHT SYSTEM
Halogen bulbs have pressurized gas inside and require special handling. They can 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 the 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 to 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 sta-
tions stored in memory are erased, so be sure to note the stations and reset them after the negative
(-) terminal cable is reconnected to the battery.
If the negative (-) terminal cable is disconnected from the battery, the ºANTI-THEFT SYSTEMº will
operate when the cable is reconnected, but the radio, tape player and CD player will not operate. Be
sure to input the correct ID number so that the radio, tape player and CD player can be operated again.
4. MOBILE COMMUNICATION SYSTEM
If the vehicle is equipped with a mobile communication system, refer to precautions in the IN section.
Page 207 of 3115
BE0GX-1 1
BE-48
- BODY ELECTRICALBACK-UP LIGHT SYSTEM
2421 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION
INSPECT PARK/ NEUTRAL POSITION SWITCH CONTINUITY (See page DI-402)
Page 208 of 3115
BE0GW-12
I24740
Ignition Switch
Cowl Side J/B LH
GAUGE1 Fuse
Back-up Light Park/Neutral Position Switch
Cowl Side J/B RH
GAUGE2 Fuse
- BODY ELECTRICALBACK-UP LIGHT SYSTEM
BE-47
2420 Author: Date:
2004 LAND CRUISER (RM1071U)
BACK-UP LIGHT SYSTEM
LOCATION
Page 209 of 3115
BE0S0-04
I25532
Connector ºAº Connector ºDº Connector ºCº Connector ºBº BE-58
- BODY ELECTRICALCOMBINATION METER
2431 Author: Date:
2004 LAND CRUISER (RM1071U)
CIRCUIT
Page 210 of 3115
I24919
OIL
SEAT BELTD1 D2 ODO/TRIP
INCLINATION
SSR
EEPRON
BZ
SPD
TM
FUEL
TEMP
VOLT
SUPPLY
CIRCUIT
P
R
D N
4
3
L 2
A/T P
CRUISE
2nd START
ETC PWR
AIR BAG
FUEL WARNING
CHG
A/T OIL TEMP D6
D11
D5
D19
D14
D16
D12
C19
B10
C20
C4
D10
D9
D17OIL MAINT
- BODY ELECTRICALCOMBINATION METER
BE-59
2432 Author: Date:
2004 LAND CRUISER (RM1071U)