Page 185 of 3115

42 45
(DVD)No Disk ReadoutDisk cannot be read. Inspect disk.
44 DVD error Error is detected in DVD player. Replace radio and player.
45 EJECT error Disk cannot be ejected. Check whether foreign mat-
ters enter inspection.
46 Disk Crack A crack and dirt are in a disk.
52 Player Error Clamp unusually generating. DVD player.
45
(DVD)
45
(DVD)
45
(DVD)
45
(DVD)Registration
Completion
Instruction
Error E0
*1 01
(Communication
Control)ºRegistration Completion Instruc-
tionº command fromradio receiver
assembly cannot be received.Since this DTC is provided for engi-
neering, it may be detected when
no actual failure exists.
ON/OFF
Instruction
Parameter
Error E2 01
(Communication
Control)Error is detected in ON/OFF control
command from radio receiver as-
sembly.Replace radio receiver assembly.
Registration
Request
Transmission E3 01
(Communication
Control)Since this DTC is provided for engi-
neering, it may be detected when
no actual failure exists. Registration Request command
is output from slave component.
By reception of connection check
Instruction, Registration Request
command is output from sub-mas-
ter component. Master Error DF
*4 01
(Communication
Control)Due to defective condition of com-
ponent with a display, master func-
tion is switched to audio equip-
ment . Error occurs in communica-
tion between sub-master (audio)
and master component. Check harness for power supply
of radio receiver assembly.
Check harness for communica-
tion system of radio receiver as-
sembly.
Check harness for communica-
tion system between radio receiver
assembly and sub-master compo-
nent.
47 DVD High Temp High temperature is detected in
DVD auto changer. 45
(DVD)Do not stop the operation for a
period of time.
48 DVD Excess
CurrentExcess current is applied to
DVD auto changer. 45
(DVD)Replace DVD auto changer.
50 A Malfunction in
insertion/ejec-
tionOperation malfunction in inser-
tion/ ejection. 45
(DVD)Replace DVD auto changer.
51 A Malfunction in
switching diskOperation malfunction in switching
disk. 45
(DVD)Replace DVD auto changer.
Inspect disk.
- BODY ELECTRICALAUDIO SYSTEM
BE-149
2522 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 186 of 3115

BE-150
- BODY ELECTRICALAUDIO SYSTEM
2523 Author: Date:
2004 LAND CRUISER (RM1071U)
4. PROBLEM SYSMPTOMS TABLE
NOTICE:
When replacing the internal mechanism (computer part) of the audio system, be careful that no part
of your body or clothing 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 was prepared on the assumption of system component troubles (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
ProblemFlow chart No.
RadioRadio not operating when power switch turned to 'ON'.1
Display indicates when power switch turned to 'ON', but no sound (including
'noise') is produced.2
Noise present, but AM - FM not operating.3
Any speaker does not work.4
Any AM or FM does not work.5
Few preset turning bands.5
Reception poor.6
Sound quality poor.7
Preset memory disappears.8
Tape PlayerCassette tape cannot be inserted.9
Cassette tape inserted, but no power.10
Power coming in, but tape player not operating.11
Any speaker does not work.12
Sound quality poor.13
Tape jammed, malfunction with tape speed or auto-reverse.14
Cassette tape will not eject.15
CD PlayerCD cannot be inserted.16
CD inserted but no power/17
Power coming in, but CD player not operating.18
Sound jumps.19
Sound quality poor (Volume faint)20
Any speaker does not work.21
CD will not be ejected.22
Power AmplifierNo power coming in.23
Power coming in, but power amplifier not operating.24
Any speaker does not work.25
NoiseNoise occurs26
Noise produced by vibration or shock while driving.27
Noise produced when engine starts.28
Steering Pad SwitchA audio system cannot be operated with steering pad switch.29
Rear Seat AudioQuality of sound from headphone connected to headphone terminal is poor or no
sound can be heard.30
Page 187 of 3115
1 Radio RADIO NOT OPERATING WHEN POWER SWITCH TURNED TO ºONº
+ B wire harness faulty.
GND faulty.
ACC wire harness faulty.
+B wire harness faulty.
GND faulty. Is tape player operating normally?
Check if CIG fuse is OK?
Is power supplied to ACC terminal of power amplifier?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 fuse is OK?
Radio assembly faulty.Replace fuse.
ACC wire harness faulty.
Check if GND (wire harness side) to radio assembly is OK?Radio assembly faulty.
Replace fuse.
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 power amplifier
grounded normally?
- BODY ELECTRICALAUDIO SYSTEM
BE-151
2524 Author: Date:
2004 LAND CRUISER (RM1071U)
The term ºAMº includes LW,MW and SW, and the term ºFWº includes UKW.
Page 188 of 3115
2 RadioDISPLAY INDICATES WHEN POWER SWITCH TURNED TO
ºONº, BUT NO SOUND (INCLUDING ºNOISEº) IS PRODUCED
+ B wire harness faulty.
GND faulty.
Speaker wire harness faulty. Is tape player operating normally?
Check if ACC fuse is OK?Ye s
NG
No OK No
No OK
OK Ye s
Ye sNG
NG Check if AMP fuse is OK?
Radio assembly faulty. Recheck system after repair.Replace fuse.
ACC wire harness faulty. Radio assembly faulty.
Replace fuse.
Does continuity exist in speaker wire harness?
Temporarily install another speaker. Functions OK?
Hiss noise from speaker?Ye s
Ye s NoNo
No Ye s
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? BE-152
- BODY ELECTRICALAUDIO SYSTEM
2525 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 189 of 3115
Speaker wire harness faulty. Radio assembly faulty.
Recheck system after repair.
Temporarily install another speaker? Functions OK?
Power amplifier faulty. Recheck system after repair.Speaker faulty. 4 Radio ANY SPEAKER DOSE NOT WORK
Is hiss noise produced by non-functioning speaker?
Does continuity exist in speaker wire harness?Ye s
Ye s No
Ye s
NoNo 3 Radio NOISE PRESENT, BUT AM-FM NOT OPERATING
Go to No.25
Radio faulty. If radio side faulty.
- BODY ELECTRICALAUDIO SYSTEM
BE-153
2526 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 190 of 3115
5 RadioANY AM OR FM DOES NOR WORK
FEW PRESET TUNING BANDS
Problem with radio wave signals or location?
Are both AM and FM defective?Radio assembly faulty.
Go to No.6Is power for the antenna being output from the radio assembly?Poor signals, poor location.
No
Ye s NoYe s
Ye s
No BE-154
- BODY ELECTRICALAUDIO SYSTEM
2527 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 191 of 3115

6RadioPOOR RECEPTION
Is the condition bad in comparison with other vehicles?
Are there any additional installation parts?
(Sun shade film, telephone antenna, etc.)
Check if there is any scratch and breaking of a wire on
the glass antenna and the defogger pattern.
(visual check. tester)
(See page BE-124
)
Is the contact of the plug jack of the radio OK?
Does the condition get better by using the outer
antenna (such as pillar antenna)?
Is the contact of the antenna terminal on the glass
surface and the defogger terminal?
Is the continuity of the antenna cord OK?
Check the grounding of the antenna, antenna cord.
Does the condition get better by replacing the
antenna cord?Take a measure for contact. An electric wave environment is bad.
Does the condition get better if
removing them?
Influence of additional installation parts.
Repair. (See page BE-75)
Check the radio.
Take a measure for contact.
Grounding failure. Replace the antenna cord.
Replace the antenna cord. Ye s
No
Radio assembly faultyYe s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s No
No
NoNo
No
No
No
NG
OK
Ye s
- BODY ELECTRICALAUDIO SYSTEM
BE-155
2528 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 192 of 3115

7 Radio SOUND QUALITY POOR
Ye sNo
Ye s
NG
OK Is sound quality always bad?
Radio assembly faulty.Poor signals, poor location.
Install properly.
Speaker faulty. Is tape player operating normally?
Is speaker properly installed?
Radio assembly or power amplifier faulty.
Recheck system after repair. Temporarily install another speaker. Functions OK?Is sound quality bad in certain
areas only?
Can cassette tape be inserted in tape player?
Check if AMP fuse is OK?Radio assembly faulty.
Replace fuse.
+B wire harness faulty.
GND faulty.
Power amplifier faulty. 8 Radio PRESET MEMORY DISAPPEARSNo
Radio assembly faulty.
No
NoNo Ye s
Ye s
Power amplifier faulty.
Radio assembly faulty.Ye s
Ye sYe s
No
No
No NG
NG
OKOKYe s
Check if GND (wire harness side) of power amplifier
grounded normally? Is power supplied to +B terminal of power amplifier?
Check if GND (wire harness side) of radio assembly
grounded normally? Is power supplied to +B terminal of radio assembly?
Check if RADIO fuse is OK? Replace fuse.
NG
OK BE-156
- BODY ELECTRICALAUDIO SYSTEM
2529 Author: Date:
2004 LAND CRUISER (RM1071U)