CD player TOYOTA HIGHLANDER 2001 Service Manual PDF

- DIAGNOSTICSAUDIO SYSTEM
05-1683
1873 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
5 CHECK OF RADIO RECEIVER ASSEMBLY INSTALLATION
(a) Check the radio receiver assembly installation condition.
(1) Check that the radio receiver assembly is installed properly.
OK: Installed properly.
NG INSTALL THE RADIO RECEIVER ASSEMBLY
PROPERLY
OK
6 DID TEMPERATURE IN CABIN CHANGE RAPIDLY?
(a) Did the temperature in the cabin change rapidly?
(1) Check whether or not the rapid temperature change occurred in the cabin.
OK: The rapid temperature change occurred.
Reference:
The rapid temperature change creates condensation inside the CD player, which may prevent the CD from
being played.
NG REPLACE RADIO RECEIVER ASSY
(SEE PAGE 67-6)
OK
CONDENSATION DUE TO TEMPERATURE CHANGE (LEAVE IT AS IT IS FOR A WHILE BEFORE
USING)

N17398
HeadCapstan
Pinch Roller
05-1686
- DIAGNOSTICSAUDIO SYSTEM
1876 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SOUND QUALITY IS BAD ONLY WHEN PLAYING TAPE
INSPECTION PROCEDURE
1 REPLACE CASSETTE TAPE WITH ANOTHER AND RECHECK
(a) Replace the cassette tape with another one and recheck.
(1) Replace the cassette tape with another normal one to see if the same trouble occurs again.
OK: Malfunction disappears.
OK CASSETTE TAPE FAULTY
NG
2 CHECK FOR ANY FOREIGN OBJECT
(a) Check for foreign objects.
(1) Check that no foreign objects or defects are detected in the cassette tape player.
OK: No foreign objects or defects are detected.
NG REMOVE FOREIGN OBJECT
OK
3 CLEAN HEAD AND CHECK OPERATION
(a) Head cleaning
(1) Raise the cassette door with your finger. Using a
pencil or similar object, push in the guide.
(2) Using a cleaning pen or cotton applicator soaked in
cleaner, clean the head surface, pinch rollers and
capstans.
(3) Check if the same trouble occurs again.
OK: Malfunction disappears.
NG REPLACE RADIO RECEIVER ASSY
(SEE PAGE 67-6)
OK
HEAD DIRTY
055LU-12

05-1684
- DIAGNOSTICSAUDIO SYSTEM
1874 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CASSETTE TAPE CANNOT BE INSERTED OR PLAYED
INSPECTION PROCEDURE
1 CHECK FOR ANY FOREIGN OBJECT
(a) Check for any foreign objects.
(1) Check that no foreign objects or defects are detected in the cassette tape player of the radio re-
ceiver assembly.
OK: No foreign objects or defects are detected.
NG REMOVE FOREIGN OBJECT
OK
2 CHECK CASSETTE TAPE
(a) Check the cassette tape.
(1) Check that the cassette tape is a normal tape with music or voice recorded.
OK: Proper cassette tape with music or voice recorded.
NG CASSETTE TAPE FAULTY
OK
3 REPLACE CASSETTE TAPE WITH ANOTHER AND RECHECK
(a) Replace the cassette tape with another one and recheck.
(1) Replace the cassette tape with another normal one to see if the same trouble occurs again.
OK: The function returns to be normal.
NG REPLACE RADIO RECEIVER ASSY
(SEE PAGE 67-6)
OK
CASSETTE TAPE FAULTY
05ASJ-06

N17398
HeadCapstan
Pinch Roller
- DIAGNOSTICSAUDIO SYSTEM
05-1687
1877 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
TAPE IS TANGLED DUE TO INCORRECT TAPE SPEED OR
AUTO-REVERSE MALFUNCTION
INSPECTION PROCEDURE
1 CHECK FOR ANY FOREIGN OBJECT
(a) Check for any foreign objects.
(1) Check that no foreign objects or defects are detected in the cassette tape player of the radio re-
ceiver assy.
OK: No foreign objects or defects are detected.
NG REMOVE FOREIGN OBJECT
OK
2 REPLACE CASSETTE TAPE WITH ANOTHER AND RECHECK(BELOW 90 MIN.)
(a) Replace the cassette tape with another one and recheck.
(1) Replace the cassette tape with another normal one (90
minutes. or less) to see if the same
trouble occurs again.
OK: Malfunction disappears.
OK CASSETTE TAPE FAULTY
NG
3 CLEAN HEAD AND CHECK OPERATION
(a) Head cleaning
(1) Raise the cassette door with your finger. Using a
pencil or similar object, push in the guide.
(2) Using a cleaning pen or cotton applicator soaked in
cleaner, clean the head surface, pinch rollers and
capstans.
(3) Check if the same trouble occurs again.
OK: Malfunction disappears.
NG REPLACE RADIO RECEIVER ASSY
(SEE PAGE 67-6)
OK
HEAD DIRTY
055LV-12

BE2820
Multipath
BE2821
Fade Out 05-1612
- DIAGNOSTICSAUDIO SYSTEM
1802 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
(b) Multipath
Interference caused by reflection of radio waves against
obstructions is called ºMultipathº. Multipath occurs when
radio signals emitted from the broadcast transmitter an-
tenna are reflected against tall buildings or mountains
and interferes with other signals which are to be received
directly.
(c) Fade Out
FM radio wave tends to be reflected against obstructions
such as tall buildings or mountains because FM frequen-
cy is higher than that of AM. For this reason, FM signals
often seem to gradually disappear or fade away as the ve-
hicle goes behind those obstructions. This phenomenon
is called ºfade outº.
4. NOISE PROBLEMS
(a) It is very important for technicians to understand a customer's claim about noise clearly. Use the follow-
ing table to diagnose the phenomena.
Radio waveCondition in which noise occursProbable cause
Noise occurs at a specific place.Strong possibility of foreign noise.
AMNoise occurs when listening to faint broadcasting.The same program may be broadcasted from some local sta-
tions. If the program is the same, one of those may be tuned
in.
Noise occurs only at night.Strong possibility of beat from a distant broadcasting.
FMNoise occurs at a specific place during driving.Strong possibility of multipath noise and phasing noise caused
by changes of FM frequency.
HINT:
If the condition when the noise occurs does not meet any of the above, find out the cause based on ºRecep-
tion Problemsº. Refer to the description about Multipath and Phasing mentioned previously.
5. COMPACT DISC PLAYER
(a) Compact Disc (hereafter called ºCDº) Players use a laser beam pick-up to read the digital signals re-
corded on the CD and reproduce analog signals of the music, etc. 4.7 in. (12 cm) and 3.2 in. (8 cm)
discs are available for the CD player.
HINT:
Never disassemble or apply oil to any part of the player unit. Do not insert any object other than a disc, into
the CD player.
NOTICE:
CD players use an invisible laser beam which could cause hazardous radiation exposure. Be sure
to operate the player correctly as instructed.

N17398
Example:
HeadCapstan
Pinch Roller
BE4331
I39082
Radio Receiver Assy
(Resister 60 to 80 W)Multi-display
controller
Sub-assyAVC-LAN Example:
- DIAGNOSTICSAUDIO SYSTEM
05-1613
1803 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
6. MAINTENANCE
Tape Player/Head Cleaning:
(a) Raise the cassette door with your finger.
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.
7. MAINTENANCE
CD Player/Disc Cleaning:
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.
8. AVC-LAN Description
(a) What is AVC-LAN?
AVC-LAN, an abbreviation for ºAudio Visual Communication Local Area Networkº, is a united standard
developed by the manufacturers in affiliation with Toyota Motor Corporation. This standard pertains
to audio and visual signals as well as switch and communication signals.
(b) Purpose:
Recently, car audio systems have rapidly developed and the functions vastly changed. The conven-
tional car audio system is being integrated with multi-media interfaces similar to those in navigation
systems. At the same time, customers are demanding higher quality from their audio systems. This
is merely an overview of the standardization background. The specific purposes are as follows.
(1) To solve sound problems, etc. caused by using components of different manufacturers through
signal standardization.
(2) To allow each manufacturer to concentrate on developing products they do best. From this, rea-
sonably priced products can be produced.
HINT:

If a +B or GND short is detected in the AVC-LAN circuit, communication is interrupted and the audio
system will stop functioning.

2005 HIGHLANDER (EWD592U)
316
I GROUND POINT
Theft Deterr ent
Indicator Light
Remote Control
Mirror SW
TRAC Off SW
Combination Meter
Seat Heater SW
RH
Option Connector 2
Combination Meter
Fuel Sender A/C Control
Assembly
Blower Resistor
Cigarette Lighter
Fro nt Powe r Out let
Electronically
Controlled
Transmission
Pattern Select SW
Glove Box Light
Body ECU
Main SW
Seat Heater SW LH3F10
II16
IR211 3J6
3J 10
3A6
3G4
3D8
3H10
3B3
3F12
3K73D5
3F11
3E11
3J4
3E10
3K6
3J 11
3B12
3B6 W- B
W- B W- B
W- B
W- B
W- B
W- B
W- B
W- B W- BW- B
W- B
W- B
W- B
W- B
W- B
W- B
R
3F13
3K2
IBW- B
BR BR (
GND2)
Radi o and PlayerBR Telltale Light
AssemblyW- B Gateway ECU3G6
3G5
W- B W- B
Multi- Display 3I6
3I2W- B
W- B 3G9
W- B W- B W- B(
*3) Sliding Roof
Control ECU
Vanity Light LH
Vanity Light RH
Interior Light B 1W- B W- B(
*2)
W- B
W- B Overhead J/BW- B
B 1
W- B
Shift Lock ECU 3D9
W- B
BH114D DO
O Y V W- B* 2 : w/ Moon Roof
* 3 : w/o Moon Roof
3H8
Transmission Shift
Main SWW- B
Navigation
ECU (
GND1)
The ft
Deterrent ECU (
E) (
E)
(
GND)
(
CG) Garage Door Opener
Transmission Control
SW
Indicator Light
Wire Sub Assembly
Junction
Connector J13
Radi o and Player

2005 HIGHLANDER (EWD592U)
8
B HOW TO USE THIS MANUAL
The ground points circuit diagram shows the connections from all major parts to the respective ground points. When
troubleshooting a faulty ground point, checking the system circuits which use a common ground may help you identify
the problem ground quickly. The relationship between ground points (
EA, IB and IC shown below) can also be
checked this way.
5
5
5
5
4
44
4
4 BA15IB18EA2
ID115
IC33 IA12 E 3
W-BW-B W-B W-B W-B
W-B
W-B
W-B
W-B W-B
W-B
W-B W-B
W-B
W-B W-B W-BW-B W-B W-B W-B
W-B
W-B
W-B
W-B W-B W-B
W-B
BR
W-B
BR BRW-BW-B W-B
W-B
W-B
W-B
W-B W-B W-B
W-B
W-B W-B
W-B
W-B
BR W-B
BR BR
BR W-B (4A-GZE)
W-B W-BI 2
I 2
B 5 I 5 I 5 I 5
B 5
B 5
B 5
I 5
I 5
I 3 I 3 E 3
E 3
E 3
E 2
E 4
E 5
E 4
E 5
E 6 E 4 E 4
B 4
EA I 4
B 4
B 4
I 4 I 8
IB IC 443E5
3E6 3G13 3F3 3D1 3B7W-B
W-B
W-B W-B W-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B W-BI 6
I 6
I 2 3C7
10A A A A
A
A
Junction
Connector J 1
W-B
W-B
W-B W-B
BR W-B W-B
W-B
W-B W-B
W-B
I GROUND POINT
FAN MAIN Relay
FAN MAIN Relay
A/C Relay No.2
A/C Relay No.3
Radiator Fan Motor
Headlight Cleaner Relay
Headlight LH
Headlight RH
Front Fog Light LH
Brake Fluid Level SW Front Fog Light RH Front Turn Signal Light RH
Front Clearance Light RH
Front Turn Signal Light LH
Front Clearance Light LH
Door Lock Control SW
Door Courtesy SW RH
Door Lock Motor RH
Door Lock Control Relay
Blower Resistor
Idle-Up SW
A/C Amplifier
Radio and Player
HEATER Relay
Auto Antenna MotorA/C Control Assembly
Blower Motor
Blower SW
Parking Brake SW
Combination Meter
Combination SW
Cruise Control ECU
Remote Control Mirror SW
Turn Signal Flasher
Defogger SW
Unlock Warning SW
Power Window Master SW
Power Window Control
Relay
Door Courtesy SW LH
Door Lock Control SW
Door Lock Motor LH
Fuel Control SW
Woofer Speaker Amplifier
Combination Meter
Combination Meter
Fuel Sender Cigarette Lighter
O/D Main SW
Clock
Combination SW
*The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.

2005 HIGHLANDER (EWD592U)
M
78
6 5
11 HIGHLANDER (
Cont' d)
W
Illu m in a tio n
83I
23G
W G G
10 B
5A
122
(
*5)
(
*6)(
*6) (
*5)
* 6 : 6 Speaker
A
B3H 103H 2
2 1
BW-B
3J 2
7IR1
9 10BVW-BA
A
IB Right Ins trument
Panel Br ac eBB Right
Center
PillarBF Ne ar t he Re ar
Side Marker
Light RH A
3F 13
W- B W- B W- B
* 5 : 8 Speaker * 4 : w/ Rear Heater Syst em
(
*4)(
*4)(
*4)(
*4) (
*4)
Rear Heater
Blower SW R26
Junction
Connector J19
Glov e Box Light G 4
Radio and Player R 4
Radio and Player R 2(
A)
, R 3(
B)

2005 HIGHLANDER (EWD592U)
M
34
2 1
28 HIGHLANDER
2ACC
IG1 AM13
1C 6
11A
1
Battery
1C 2
40A AM1
IB
140A ALT1 2LW B W
W
Power SourceAudio System (
6 Speaker)
2
FL MAIN
3. 0W3B 4B
2B
10 IF3
7IB1 1
12 2I
PP R
25A
RAD NO. 1
6B
20 IF3
6IB1
VG W
9
A 3
R LG R
2 1 BC1 5IR1 1A 1 3A 13
2A
10 IR1
GR
1BH1
5BB1
12
BY L R
6A
20 IR1
10 BH1
10 BB1
YR-YY W
B
3
R L
BR
B 7
IN1 6IL1 10B 5
Y Y LG
2 1 IN1 7 2C 4
IL1 1B 1
11 IR1
7. 5A
RAD NO. 2
3I
10 BC1
WL W
1K 3
20 IK3
2IL1
L- Y LG L- B
L- Y WD. C. C
ACC+B BU+B
GND FL+ FL- FR+ FR- RL+ RL- RR+ RR-
Ri g ht I ns t r u me nt
Panel Br ace
P VL
LG12
3412
34
V
ST1
Y
34E 2
V4E 1H 1
6IA1
1V
F1 0R1 0 R 9 F1 1T12 T11R 2(
A)
, R 3(
B)
A2 6 I15
F 7
Antenna Amplifier
(
Re ar)
Fusible Link Block
Front Door Speak er LH Fr ont Door Speak er RH Ignition SW
Radio and Player
Rear Door Speaker LH Rear Door Speak er RH Tweeter LH Tweeter RH