1986 TOYOTA LAND CRUISER phone

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

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)

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)

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)

BE2E5-01
I25537
Connector ºAº
Connector ºBº
To Tail Light
Microphone
Connector ºDº
Garage Door
Opener
Connector ºCºIllumination LED
DOME Fuse
Combination
Switch
TA I L
Relay
Connector ºEº
SW1
SW2
SW3
Circuit
Plate
(Garage
Door
Opener)
Connector ºEºConnector ºFº
Connector ºGº
MIC
AMP
BE-182
- BODY ELECTRICALOVERHEAD JUNCTION BLOCK
2555 Author
: Date
:
2004 LAND CRUISER (RM1071U)
CIRCUIT

I20746
Wire Harness Side:
BE2E7-01
I24663
- BODY ELECTRICALOVERHEAD JUNCTION BLOCK
BE-185
2558 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSPECTION
1. INSPECT OVERHEAD JUNCTION BLOCK ASSEMBLY
Disconnect the connector from the overhead J/B and inspect
the connector on the wire harness side, as shown.
Tester connectionConditionSpecified condition
1 - GroundConstantContinuity
8 - GroundConstantBattery positive voltage
11 - GroundIgnition switch OFF or ACCNo voltage11 Ground
Ignition switch ONBattery positive voltage
If continuity is not as specified, repair or replace the wire har-
ness.
2. Overhead J/B side:
INSPECT OVERHEAD JUNCTION BLOCK ASSEMBLY
Circuit nameTester connectionSpecified condition
Power source circuitA8 - B6 - E6Continuity
Ground circuitA1 - B2 - E8 - D3Continuity
Microphone circuitB10 - G4Continuity
Microphone circuitB9 - G2Continuity
If continuity is not as specified, replace the overhead J/B as-
sembly.

IN-24
- INTRODUCTIONFOR ALL OF VEHICLES
24 Author
: Date
:
2004 LAND CRUISER (RM1071U)
6. FOR VEHICLES EQUIPPED WITH A CATALYTIC CONVERTER
CAUTION:
If large amount of unburned gasoline flows into the converter, it may overheat and create a fire haz-
ard. To prevent this, observe the following precautions and explain them to your customer.
(a) Use only unleaded gasoline.
(b) Avoid prolonged idling.
Avoid running the engine at idle speed for more than 20 minutes.
(c) Avoid spark jump test.
(1) Perform spark jump test only when absolutely necessary. Perform this test as rapidly as possible.
(2) While testing, never race the engine.
(d) Avoid prolonged engine compression measurement.
Engine compression tests must be done as rapidly as possible.
(e) Do not run engine when fuel tank is nearly empty.
This may cause the engine to misfire and create an extra load on the converter.
(f) Avoid coasting with ignition turned off and prolonged braking.
(g) Do not dispose of used catalyst along with parts contaminated with gasoline or oil.
7. IF VEHICLE IS EQUIPPED WITH MOBILE COMMUNICATION SYSTEM
For vehicles with mobile communication systems such as two-way radios and cellular telephones, observe
the following precautions.
(1) Install the antenna as far as possible away from the ECU and sensors of the vehicle's electronic
system.
(2) Install the antenna feeder at least 20 cm (7.87 in.) away from the ECU and sensors of the ve-
hicle's electronic systems. For details about ECU and sensors locations, refer to the section on
the applicable component.
(3) Do not wind the antenna feeder together with the other wiring as much as possible, also avoid
running the antenna feeder parallel with other wire harnesses.
(4) Check that the antenna and feeder are correctly adjusted.
(5) Do not install powerful mobile communications system.
8. FOR USING OBD II SCAN TOOL OR TOYOTA HAND-HELD TESTER
CAUTION:
Observe the following items for safety reasons:
Before using the OBD II scan tool or TOYOTA hand-held tester, the OBD II scan tool's instruc-
tion book or TOYOTA hand-held tester's operator manual should be read thoroughly.
Be sure to route all cables securely when driving with the OBD II scan tool or TOYOTA hand-
held tester connected to the vehicle. (i.e. Keep cables away from feet, pedals, steering wheel
and shift lever.)
Two persons are required when test driving with the OBD II scan tool or TOYOTA hand-held
tester, one person to drive the vehicle and the other person to operate the OBD II scan tool or
TOYOTA hand-held tester.