Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Land Cruiser 1986.1998-2007 Approved 98-07 Body Electrical
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BE-175
BODY ELECTRICAL - ANTENNA
BE0SD-04
3
INSPECTION
1. Auto Antenna Models:
INSPECT ANTENNA MOTOR
(a) Connect the positive (+) lead from the battery to terminal
6 3 and the negative (-) lead to terminal 6.
(b) Check that the motor turns (moves upward).
NOTICE:
These tests must be done quickly (within 3 - 5 seconds) to
I06143
prevent the coil from burning out.
(c) Then, reverse the polarity, check that the motor turns the
3
opposite way (moves downward).
NOTICE:
These tests must be done quickly (within 3 - 5 seconds) to
prevent the coil from burning out.
6
I06144
2. INSPECT ANTENNA SWITCH CONTINUITY
Integration panel control assembly Switch position Tester connection Specified condition
UP button FREE 4-5 No continuity
UP button Pushed in 4-5 Continuity
DOWN button FREE 9-5 No continuity
DOWN button Pushed in 9-5 Continuity
If continuity is not as specified, replace the switch.
I24666
2004 LAND CRUISER (RM1071U)
Author : Date : 2548
BE-176
BODY ELECTRICAL - ANTENNA
3. Auto Antenna Models:
Wire Harness Side
INSPECT ANTENNA MOTOR CONTROL RELAY CIR-
CUIT
Disconnect the connector from the relay and inspect the con-
nector on wire harness side, as shown in the chart on the next
page.
I06145
Tester connection Condition Specified condition
1 - Ground Antenna "UP" switch OFF No continuity
1 - Ground Antenna "UP" switch ON Continuity
5 - Ground Constant Continuity
9 - Ground Antenna "DOWN" switch OFF No continuity
9 - Ground Antenna "DOWN" switch ON Continuity
4 - Ground Constant Battery positive voltage
7 - Ground Ignition switch ACC or LOCK No voltage
7 - Ground Ignition switch ON Battery positive voltage
17 - Ground Ignition switch LOCK No voltage
17 - Ground Ignition switch ACC or ON Battery positive voltage
If circuit is as specified, replace the relay.
2004 LAND CRUISER (RM1071U)
Author : Date : 2549
BE-174
BODY ELECTRICAL - ANTENNA
ANTENNA
BE0G9-04
LOCATION
Antenna
Antenna Motor
View "C"
View "B"
View "D"
View "A"
: Clamp Radio Assembly
View "A" View "B"
Passenger Airbag
Sensor Assembly Piller
Rainforcement
Front Door Glass
Radio assembly
View "C" View "D"
Quater Window
Rear Door Glass Glass
Front Door Glass
I09910
2004 LAND CRUISER (RM1071U)
Author : Date : 2547
BE-177
BODY ELECTRICAL - ANTENNA
BE0N7-06
Antenna Nut 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 "ON" position.
BE4671
(c) Turn the antenna switch to "UP".
(d) Catch the antenna rod by hand and turn the radio switch
"OFF".
(e) Try again to turn the radio switch "ON" and antenna switch
"UP".
(f) Remove antenna rod.
HINT:
The rod will extend fully and be released form the motor anten-
na.
BE5781 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:
D When inserting the cable, the teeth on the cable must face
toward the rear of the vehicle.
D Insert the antenna approx. 350 mm.
(b) Turn the radio switch to "OFF".
BE5780 HINT:
D In case the cable is not wound, twist it, as shown in the
illustration.
D 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
Twist
wave band select buttons.
BE4674
2004 LAND CRUISER (RM1071U)
Author : Date : 2550
BE-124
BODY ELECTRICAL - AUDIO SYSTEM
AUDIO SYSTEM BE2E8-01
DESCRIPTION
1. RADIO WAVE BAND
The radio wave bands used in radio broadcasting are as follows:
Frequency 30 kHz 300 kHz 3 MHz 30 MHz 300 MHz
Designation LF MF HF VHF
AM FM
Radio wave
Modulation Amplitude modulation Frequency modulation
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
FM (Stereo) also picks up static and other types of interference ("noise")
FM (Monaural) easily.
AM
BE2818
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.
Fading: (1) Fading
lonosphere
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 "fading".
BE2819
2004 LAND CRUISER (RM1071U)
Author : Date : 2497
BE-125
BODY ELECTRICAL - AUDIO SYSTEM
(2) Multipath
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.
BE2820
(3) Fade Out
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. NOISE PROBLEMS
BE2821 (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.
Noise occurs at a specific place. Strong possibility of foreign noise.
Noise occurs when listening to faint There is a possibility that the same program is broadcasted
AM broadcasting. from different local stations, and that might be listening a
program from other station.
Noise occurs only at night. Strong possibility of the beat from a distant broadcasting.
Noise occurs while driving on a partic- Strong possibility of multipath noise and fading noise caused
FM ular area.. by the changes of FM waves.
HINT:
In the condition of noise occurrence does not meet any of the
above questionnaire, check the problems to "Reception
Problem" on the previous page.
2004 LAND CRUISER (RM1071U)
Author : Date : 2498
BE-126
BODY ELECTRICAL - AUDIO SYSTEM
(b) Matters that require attention when checking:
D Noise coming into the radio usually has no harm for
daily use as the noise protection is taken, and it is
very rate for an extremely loud noise to come in.
When extremely loud noise comes into the radio,
check if the grounding is normal where the antenna
is installed.
D Check if all the regular noise prevention parts are
properly installed, and if there is any installation of
non-authorized parts and non-authorized wiring.
D If you leave the radio under out of tune (not turning),
it is easy to diagnose the phenomenon as noise oc-
curs frequently.
(c) Antenna and noise:
Electronic signal received by the antenna will reach to the
radio transmitting through the core wire of the coaxial
cable. Any noise wave other than radio wave is mixed into
this core wire, that naturally causes noise in the radio and
poor sound quality. In order to prevent the noise from
coming into radio, the core wire inside the coaxial cable
is covered with a mesh wire called shield wire which trans-
mits the noise to the ground.
5. COMPACT DISC PLAYER
Compact Disc Players use a laser beam pick-up to read the dig-
ital signals recorded on the CD and reproduce analog signals
of the music, etc.
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.
6. Tape player/head cleaning:
Example:
MAINTENANCE
Head Capstan
(a) Raise the cassette door with your finger.
Next, using a pencil or similar object, push in the guide.
(b) Using a cleaning pen or cotton applicator soaked in clean-
er, clean the head surface, pinch rollers and capstans.
Pinch Roller N17398
2004 LAND CRUISER (RM1071U)
Author : Date : 2499
BE-127
BODY ELECTRICAL - AUDIO SYSTEM
7. 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.
BE4331
8. OUTLINE OF AVC-LAN
(a) What is AVC-LAN?
AVC-LAN is the abbreviation, which stands for Audio Visual Communication-Local Area Network.
This is a unified standard co-developed by 6 audio manufactures associated with Toyota Motor Corpo-
ration.
The Unified standard covers signals, such as audio signal, visual signal, signal for switch indication
and communication signal. Radio receiver assembly and RSA (Rear Seat Audio) panel have a resis-
tance (60 - 80 ) required for communication.
Radio Receiver Assembly Power Amplifier DVD Auto Changer
I10058
(b) Objectives
Recently the car audio system has been rapidly developed and functions have been changed drasti-
cally. The conventional system has been switched to the multi-media type such as a navigation sys-
tem. At the same time the level of customers needs to audio system has been upgraded. This lies be-
hind this standardization.
The concrete objectives are explained below.
(1) When products by different manufactures were combined together, there used to be a case that
malfunction occurred such as sound did not come out. This problem has been resolved by stan-
dardization of signals.
(2) Various types of after market products have been able to add or replace freely.
(3) Because of the above (2), each manufacture has become able to concentrate on developing
products in their strongest field. This has enabled many types of products provided inexpensive-
ly.
(4) In general, a new product developed by one particular manufacture could not be used due to
a lack of compatibility with other manufactures products. Because of this new standard, users
can enjoy many compatible products from different manufacture anytime they went.
(c) The above descriptions are the objectives to introduce AVC-LAN. By this standardization, develop-
ment of new products will no longer cause systematic errors.
2004 LAND CRUISER (RM1071U)
Author : Date : 2500
BE-128
BODY ELECTRICAL - AUDIO SYSTEM
HINT:
D When +B short or GND short is detected in AVC-LAN circuit, communication stops. And audio system
does not function normally.
D When audio system is not equipped with a navigation system, audio head unit is the master unit. When
audio system is equipped with a navigation system, multi-display is the master unit.
D This system has 2 kinds of AVC-LAN, Main AVC-LAN and Sub AVC-LAN.
D RSA panel works as a master unit in the Sub AVC-LAN, but not in the Main AVC-LAN.
D The car audio system using AVC-LAN circuit has a diagnosis function.
(w/ Navigation system (see pageDI-1263 )
D Each product has its own specified numbers called physical address. Numbers are also allotted to
each function in one product, which are called logical address.
AVC-LAN:
Main AVC-LAN
Power Amplifier (*) Radio Receiver Assembly RSA Panel DVD Auto Chager
*: Except JBL System
I25240
2004 LAND CRUISER (RM1071U)
Author : Date : 2501
BE-171
BODY ELECTRICAL - AUDIO SYSTEM
BE2EA-01
INSPECTION
1. INSPECT POWER AMPLIFIER CIRCUIT
Disconnect the connector from power amplifier and inspect the
7 6 5 4 3 2 1 connector on the wire harness side.
16 15 14 13 12 11 10 9 8
I25541
Tester connection Condition Specified condition
12 - Ground Constant Continuity
13 - Ground Constant Continuity
7 - Ground Constant Battery voltage
16 - Ground Constant Battery voltage
If the circuit is not as specified, inspect the circuits connected
to other parts.
2. INSPECT REAR SEAT AUDIO CIRCUIT
Disconnect the connector from RSA controller and inspect the
connector on the wire harness side.
I25540
Tester connection Condition Specified condition
17 - Ground Constant Continuity
24 - Ground Ignition switch LOCK and radio switch ON No voltage
24 - Ground Ignition switch ACC or ON and radio switch ON Battery voltage
12 - Ground Constant Battery voltage
If the circuit is not as specified, inspect the circuits connected
to other parts.
2004 LAND CRUISER (RM1071U)
Author : Date : 2544
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BODY ELECTRICAL - AUDIO SYSTEM
3. INSPECT DVD CHANGER CIRCUIT
Disconnect the connector from DVD changer and inspect the
connector on the wire harness side.
I25542
Tester connection Condition Specified condition
20 - Ground Constant Continuity
1 - Ground Ignition switch LOCK No voltage
1 - Ground Ignition switch ACC or ON Battery voltage
10 - Ground Constant Battery voltage
If the circuit is not as specified, inspect the circuits connected
to other parts.
4. INSPECT RADIO RECEIVER ASSEMBLY CIRCUIT
Disconnect the connectors from the radio receiver assembly,
Connector "A" and inspect the connector on the wire harness side.
Connector "B"
Connector "C"
I25539
Tester connection Condition Specified condition
A20 - Ground Constant Continuity
A1 - Ground Constant Battery voltage
A11 - Ground Ignition switch LOCK No voltage
A11 - Ground Ignition switch ACC or ON Battery voltage
If the circuit is not as specified, inspect the circuits connected
to other parts.
2004 LAND CRUISER (RM1071U)
Author : Date : 2545
BE-173
BODY ELECTRICAL - AUDIO SYSTEM
HINT:
Check the wire harness between radio receiver assembly and
the CD auto changer, between radio receiver assembly and
power amplifier.
5. INSPECT STEERING PAD SWITCH CIRCUIT
Disconnect the connectors from the steering pad switch, and in-
spect the connector on the wire harness side.
EAU AU2 AU1 I24857
Tester connection Condition Specified condition
AU1 - EAU Do not switch position Approx. 100 k
AU1 - EAU SEEK+ switch: push 0
AU1 - EAU SEEK- switch: push Approx. 0.3
AU1 - EAU VOL+ switch: push Approx. 1k
AU1 - EAU VOL- switch: push Approx. 3.2 k
AU2 - EAU Do not switch position Approx. 100 k
AU2 - EAU MODE switch: push 0
If the circuit is not as specified, inspect the circuits connected
to other parts.
2004 LAND CRUISER (RM1071U)
Author : Date : 2546
BE-170
BODY ELECTRICAL - AUDIO SYSTEM
BE0GD-23
LOCATION
Cowl SIde J/B RH
D RADIO Fuse
Radio Assembly
Ignition Switch
Cowl Side J/B LH Steering Pad Switch
D ECU IG1 Fuse
D IG Fuse
Tweeter
RSA
Engine Room R/B
D AMP Fuse
Power Amplifier
Speakers
Antenna Assembly
D Motor Antenna
Speakers
Woofer I25523
2004 LAND CRUISER (RM1071U)
Author : Date : 2543
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BODY ELECTRICAL - AUDIO SYSTEM
BE2E9-01
TROUBLESHOOTING
1. DIAGNOSIS FUNCTION (Main AVC-LAN)
(a) Diagnosis start-up
For shifting to diagnosis mode, turn the ignition switch ON and push the "DISC" switch 3 times while
pressing "ch1" and "ch6" switches.
HINT:
To exit the diagnosis mode, push the "DISC" switch for 1.7 sec. or turn the ignition switch to ACC or OFF.
(b) Element check mode
After the diagnosis start-up, the system enters the element check mode. Check that the all elements
light up.
HINT:
By pressing the "TUNE UP" switch, the system enters the "Service Check Mode".
(c) Switch check mode
(1) Element check mode is started at the same time with the switch check mode.
(2) Check that there is a beep sound when any switch is pressed.
HINT:
By pressing "TUNE UP" switch, the system enters the "Service Check Mode".
"1ch" Switch "3ch" Switch "5ch" Switch
"2ch" Switch "4ch" Switch "6ch" Switch
"TUNE DOWN" "TUNE UP"
Switch Switch "DISC" Switch I25054
2004 LAND CRUISER (RM1071U)
Author : Date : 2502
BE-130
BODY ELECTRICAL - AUDIO SYSTEM
(d) Service check mode
(1) After the element check and switch check is completed, the system enters service check mode
when "TUNE UP" switch is pressed.
(2) Error codes over the tuner and connected equipments are displayed on the screen of the tuner.
Results for each check are displayed as follows:
good:
No DTC is detected for both "System Check Confirmation" and "Diagnosis Memory Re-
sponse".
nCon:
The component does not respond to the "Diagnosis On Instruction" command.
Applicable to only the system where connected components are limited to be used.
ECHn:
Application of new version has been confirmed by the "Diagnosis On Check", and there
is one or more DTC which indicates "Replacement" in the "System Check Result Re-
sponse" or "Diagnosis Memory Response".
CHEC:
Application of new version has been confirmed by the "Diagnosis On Check", and there
is no DTC which indicates "Replacement" in the "System Check Result Response" or
"Diagnosis Memory Response", but one or more DTC which indicates "Check" is identified.
Old:
Application of old version is confirmed by the "Diagnosis On Check", and DTC is identified
in the "System Check Result Response" or "Diagnosis Memory Response".
nrES:
No response is identified to the "System Check Start Instruction" and "Request for System
Check Result" commands.
HINT:
Check the present and past condition of components by performing the System Check and collecting
stored DTC memories.
Check results are displayed as one of the following six indications: "good", "ECHn", "CHEC","nCon",
"Old" or "nrES".
"1ch" Switch "3ch" Switch "5ch" Switch
"2ch" Switch "4ch" Switch "6ch" Switch
"TUNE DOWN" "TUNE UP"
Switch Switch "DISC" Switch I25054
2004 LAND CRUISER (RM1071U)
Author : Date : 2503
BE-131
BODY ELECTRICAL - AUDIO SYSTEM
(e) Display Screen for Service Check.
Example:
Connection parts ( physical address): Radio receiver (P190), RSA ECU (P1F4), DVD player (P1A0)
Turn ignition switch ON.
Normal Mode HINT:
Push the "DISC" switch 3 times
while pressing "ch1" and "ch6" To exit diagnosis mode, press
switches. the "DISC" switch for 1.7 sec. or
turn ignition switch to ACC or
OFF
L 3 beeps
Element check mode
Switch Check Mode
TUNE UP
Physical Address (When checking,
Service Check Mode P1F4 P1F4 is blinking)
TUNE DOWN TUNE UP
ch2
"ECHn" Detail
Result (Replacing) ECHn Display Mode
ch3 (Refer to (f))
TUNE DOWN TUNE UP
P190 Physical Address
TUNE DOWN TUNE UP
ch2
"CHEC" Detail
Result (Check) CHEC Display Mode
(Refer to (g))
ch3
TUNE DOWN TUNE UP
P1A0 Physical Address
TUNE DOWN TUNE UP
ch2
"Old" Detail
Result (Old) Old Display Mode
(Refer to (h))
ch3
ch5 (1.7 sec.) L A long beep (3 sec.)
: Indicates a switch operation
CLr
After 3 sec.
Memory Clear Mode
After the memory is cleared, only the physical address is displayed cyclically.
When re-checking (ch1 switch is pressed) in that condition, the result is also
displayed as shown above.
2004 LAND CRUISER (RM1071U)
Author : Date : 2504
BE-132
BODY ELECTRICAL - AUDIO SYSTEM
(f) "ECHn" Detail Display Mode Screen
Service Check Mode P1F4
TUNE DOWN TUNE UP
TUNE UP
ECHn CLr
TUNE DOWN
ch2 ch5 (Along)
ch3
"ECHn" Detail Display Mode
P1F4 Physical Address of Component
TUNE DOWN TUNE UP
SyS
TUNE DOWN TUNE UP
1L ** Logical Address
TUNE DOWN TUNE UP Details for 1st
DTC (Refer to diagnostic Component
1d 21
trouble code chart)
TUNE DOWN TUNE UP
COdE
TUNE DOWN TUNE UP
2L ** Logical Address
Detail code is displayed TUNE UP
cyclically. TUNE DOWN
DTC (Refer to diagnostic
2d D7
trouble code chart)
TUNE DOWN TUNE UP
2P *** Auxiliary Code (*1) Details for 2nd
TUNE DOWN Component
TUNE UP
(*1): Some diagnostic codes 2n ** Connection Check Code (*2)
may not be displayed. In this TUNE DOWN TUNE UP
case, "- - -" displayed.
2c ** Number of Occurrence (*2)
(*2): Some diagnostic codes TUNE DOWN TUNE UP
may not be displayed. In this
case, "- -" displayed. Continued if more than one DTC is identified.
TUNE DOWN TUNE UP
: Indicates a switch operation
2004 LAND CRUISER (RM1071U)
Author : Date : 2505
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BODY ELECTRICAL - AUDIO SYSTEM
(g) "CHEC" Detail Display Mode Screen
Service Check Mode P190
TUNE DOWN TUNE UP
TUNE UP
CHEC
CLr
TUNE DOWN
ch3 ch5 (Along)
ch2
"CHEC" Detail Display Mode P190 Physical Address of Component
TUNE DOWN TUNE UP
COde
TUNE DOWN TUNE UP
1L ** Logical Address
TUNE DOWN TUNE UP
1d E4 DTC (Refer to diagnostic
trouble code chart) Details for 1st
TUNE DOWN
TUNE UP Component
1P *** Auxiliary Code (*1)
TUNE DOWN TUNE UP
1n ** Connection Check Code (*2)
TUNE DOWN TUNE UP
1c ** Number of Occurrence (*2)
Detail code is displayed
TUNE DOWN TUNE UP
cyclically.
2L ** Logical Address
TUNE DOWN TUNE UP
DTC (Refer to diagnostic
2d 43 Details for 2nd
trouble code chart)
TUNE DOWN TUNE UP Component
2P *** Auxiliary Code (*1)
(*1): Some diagnostic codes
TUNE DOWN TUNE UP
may not be displayed. In this
case, "- - -" displayed. 2n ** Connection Check Code (*2)
TUNE DOWN TUNE UP
(*2): Some diagnostic codes 2c ** Number of Occurrence (*2)
may not be displayed. In this
case, "- -" displayed. TUNE DOWN TUNE UP
Continued if more than one DTC is identified.
: Indicates a switch operation TUNE DOWN TUNE UP
2004 LAND CRUISER (RM1071U)
Author : Date : 2506
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BODY ELECTRICAL - AUDIO SYSTEM
(h) "Old" Detail Display Mode Screen
Service Check Mode P1A0
TUNE DOWN TUNE UP
TUNE UP
Old
CLr
TUNE DOWN
ch3 ch5 (Along)
ch2
"Old" Detail Display Mode P1A0 Physical Address of Component
TUNE DOWN TUNE UP
COdE
TUNE DOWN TUNE UP
1L ** Logical Address
TUNE DOWN TUNE UP
1d d4 DTC (Refer to diagnostic
trouble code chart) Details for 1st
TUNE DOWN
TUNE UP Component
1P *** Auxiliary Code (*1)
TUNE DOWN TUNE UP
1n ** Connection Check Code (*2)
TUNE DOWN TUNE UP
1c - - Number of Occurrence (*2)
Detail code is displayed
TUNE DOWN TUNE UP
cyclically.
2L ** Logical Address
TUNE DOWN TUNE UP
DTC (Refer to diagnostic
2d 43 Details for 2nd
trouble code chart)
TUNE DOWN TUNE UP Component
2P *** Auxiliary Code (*1)
(*1): Some diagnostic codes
TUNE DOWN TUNE UP
may not be displayed. In this
case, "- - -" displayed. 2n ** Connection Check Code (*2)
TUNE DOWN TUNE UP
(*2): Some diagnostic codes 2c - - Number of Occurrence (*2)
may not be displayed. In this
case, "- -" displayed. TUNE DOWN TUNE UP
Continued if more than one DTC is identified.
: Indicates a switch operation TUNE DOWN TUNE UP
2004 LAND CRUISER (RM1071U)
Author : Date : 2507
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BODY ELECTRICAL - AUDIO SYSTEM
2. DIAGNOSIS FUNCTION (Sub AVC-LAN)
HINT:
As starting Main AVC-LAN to operate the diagnosis mode, Sub AVC-LAN is automatically to the mode. Per-
form the diagnosis mode operation on the RSA panel.
(a) Element check mode
After the diagnosis start-up, the system enters the element check mode. Check that the all elements
light up.
HINT:
By pressing the "TUNE UP" switch, the system enters the "Service Check Mode".
(b) Switch check mode
(1) Element check mode is started at the same time with the switch check mode.
(2) Check that there is a beep sound when any switch is pressed.
HINT:
By pressing "TUNE UP" switch, the system enters the "Service Check Mode".
"TUNE DOWN" Switch "TUNE UP" Switch
I25241
2004 LAND CRUISER (RM1071U)
Author : Date : 2508
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BODY ELECTRICAL - AUDIO SYSTEM
(c) Service check mode
(1) After the element check and switch check is completed, the system enters service check mode
when "TUNE UP" switch is pressed.
(2) Error codes over the tuner and connected equipments are displayed on the screen of the tuner.
Results for each check are displayed as follows:
good:
No DTC is detected for both "System Check Confirmation" and "Diagnosis Memory Re-
sponse".
nCon:
The component does not respond to the "Diagnosis On Instruction" command.
Applicable to only the system where connected components are limited to be used.
ECHn:
Application of new version has been confirmed by the "Diagnosis On Check", and there
is one or more DTC which indicates "Replacement" in the "System Check Result Re-
sponse" or "Diagnosis Memory Response".
CHEC:
Application of new version has been confirmed by the "Diagnosis On Check", and there
is no DTC which indicates "Replacement" in the "System Check Result Response" or
"Diagnosis Memory Response", but one or more DTC which indicates "Check" is identified.
Old:
Application of old version is confirmed by the "Diagnosis On Check", and DTC is identified
in the "System Check Result Response" or "Diagnosis Memory Response".
nrES:
No response is identified to the "System Check Start Instruction" and "Request for System
Check Result" commands.
HINT:
Check the present and past condition of components by performing the System Check and collecting
stored DTC memories.
Check results are displayed as one of the following six indications: "good", "ECHn", "CHEC","nCon",
"Old" or "nrES".
"TUNE DOWN" Switch "TUNE UP" Switch
I25241
2004 LAND CRUISER (RM1071U)
Author : Date : 2509
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BODY ELECTRICAL - AUDIO SYSTEM
(d) Display Screen for Service Check.
Example:
Connection parts ( physical address): Radio receiver (P190), RSA ECU (P1F4), DVD player (P1A0)
Normal Mode Diagnosis of main AVC- LAN HINT:
start up. To exit diagnosis mode, press
the "DISC" switch for 1.7 sec. or
turn ignition switch to ACC or
OFF
L 3 beeps
Element check mode
Switch Check Mode
V
TUNE/TRACK
Physical Address (When checking,
Service Check Mode P1F4 P1F4 is blinking)
V
TUNE/TRACK V TUNE/TRACK
V
DISC/CH/PROG
"ECHn" Detail
Result (Replacing) ECHn Display Mode
DISC/CH/PROG V
(Refer to (e))
TUNE/TRACK V TUNE/TRACK
V
P190 Physical Address
V
TUNE/TRACK
TUNE/TRACK V V
DISC/CH/PROG
"CHEC" Detail
Result (Check) CHEC Display Mode
(Refer to (f))
DISC/CH/PROG V
TUNE/TRACK V TUNE/TRACK
V
P1A0 Physical Address
V
TUNE/TRACK V TUNE/TRACK
V
DISC/CH/PROG
"Old" Detail
Result (Old) Old Display Mode
(Refer to (g))
DISC/CH/PROG V
: Indicates a switch operation OFF (1.7 sec.) L A long beep (3 sec.)
CLr
After 3 sec.
Memory Clear Mode
After the memory is cleared, only the physical address is displayed cyclically.
When re-checking (ch1 switch is pressed) in that condition, the result is also
displayed as shown above.
2004 LAND CRUISER (RM1071U)
Author : Date : 2510
BE-138
BODY ELECTRICAL - AUDIO SYSTEM
(e) "ECHn" Detail Display Mode Screen
Service Check Mode P1F4
V
TUNE/TRACK V TUNE/TRACK
V
TUNE/TRACK
ECHn CLr
TUNE/TRACK V
V OFF (Along)
DISC/CH/PROG V DISC/CH/PROG
"ECHn" Detail Display Mode
P1F4 Physical Address of Component
V
TUNE/TRACK V TUNE/TRACK
SyS
V
TUNE/TRACK V TUNE/TRACK
1L ** Logical Address
TUNE/TRACK
V Details for 1st
TUNE/TRACK V Component
DTC (Refer to diagnostic
1d 21
trouble code chart)
V
TUNE/TRACK V TUNE/TRACK
COdE
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