Toyota Corolla (2004+). Manual - part 41

 

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Toyota Corolla (2004+). Manual - part 41

 

 

05-632
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
057PA-02
CD CANNOT BE TAKEN OUT
WIRING DIAGRAM
See page 05-610
INSPECTION PROCEDURE
1
CHECK IF RADIO AUTO-SEARCH FUNCTIONS PROPERLY
(a) Check if the radio auto-search function properly.
(1)
Perform the auto-research of the radio and check that the operation is normal.
Standard: malfunction disappear.
NG Go to step 5
OK
2
PRESS ”EJECT” AND CHECK OPERATION
(a) Press ”EJECT”and check the operation.
(1)
Press the CD EJECT switch of the radio receiver assembly for 2 sec or more to see if the CD is
ejected.
Standard: CD is ejected.
Reference:
If the CD is not ejected, send the vehicle for repair.
Do not try to drag it out by force.
NG CHECK AND REPLACE RADIO RECEIVER
ASSY
OK
3
CHECK IF A PROPER CD IS INSERTED
(a) Check that a proper CD is inserted.
(1)
Check that in what conditions the sound skipping occurs.
Standard: Driving on the bad road.
NG CD FAULTY
OK
4
REPLACE CD WITH ANOTHER AND RECHECK
(a) Replace the CD with another and recheck.
(1)
Check the installation condition of the radio receiver assembly.
Standard: Installed properly.
OK CD FAULTY
NG
05-633
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
5
INSPECT RADIO RECEIVER ASSY(+B, ACC, GND)
(a) Check that the continuity between terminals at each
+B
ACC
condition, as shown in the chart.
Standard:
Tester connection
Condition
Specified condition
GND - Body ground
Constant
Continuity
(b) Check that the voltage between terminals at each condi-
tion, as shown in the chart.
Standard:
GND
I32244
Tester connection
Condition
Specified condition
+B - GND
Constant
10 - 14 V
ACC - GND
Ignition switch ACC or ON
10 - 14 V
OK CHECK AND REPLACE RADIO RECEIVER
ASSY
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
05-635
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
0560I-02
CD SOUND SKIPS
INSPECTION PROCEDURE
1
DISC CLEANING
(a) Disk cleaning
(1)
If the disk gets dirty, clean the disk by wiping the sur-
face from the center to outside in the radial direc-
tions with a soft cloth.
NOTICE:
Do not use a conventional record cleaner or anti-static pre-
servative.
Standard: malfunction disappear.
E50013
OK DISC DIRTY
NG
2
REPLACE CD WITH ANOTHER AND RECHECK
(a) Replace the CD with another and recheck.
(1)
Check the installation condition of the radio receiver assembly.
Standard: malfunction disappear.
OK CD FAULTY
NG
3
CHECK WHEN THIS HAPPENS
(a) Check then this happens.
(1)
Check that in what condition (place) noise occurs.
Standard: Driving on the bumpy road.
OK Go to step 5
NG
4
COMPARE IT WITH ANOTHER CAR OF SAME MODEL
(a) Compare it with another vehicle of the same model.
(1)
Compare with the vehicle of the same type which does not have a trouble to see if there is any
difference in the condition of trouble occurrence.
Standard: No difference found.
OK SETTING
NG
05-636
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
5
CHECK OF RADIO RECEIVER ASSEMBLY INSTALLATION
(a) Check of radio receiver assembly installation.
(1)
Check the installation condition of the radio receiver assembly.
Standard: Installed properly.
NG INSTALL THE RADIO RECEIVER ASSEMBLY
PROPERLY
OK
6
DID THE TEMPERATURE IN THE 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.
Standard: The rapid temperature change occurred.
Reference:
The rapid temperature change creates condensation inside the CD player, which may disable playing CD.
OK CONDENSATION DUE TO TEMPERATURE
CHANGE(LEAVE IT AS IT IS FOR A WHILE
BEFORE USING)
NG
CHECK AND REPLACE RADIO RECEIVER ASSY
05-634
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
0560J-02
SOUND QUALITY IS BAD ONLY WHEN CD IS PLAYED(VOLUME IS
TOO LOW)
INSPECTION PROCEDURE
1
REPLACE CD WITH ANOTHER AND RECHECK
(a) Replace the CD with another and recheck.
(1)
Check the installation condition of the radio receiver assembly.
Standard: malfunction disappear.
OK CD FAULTY
NG
CHECK AND REPLACE RADIO RECEIVER ASSY
05-598
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
055ZZ-02
CUSTOMER PROBLEM ANALYSIS CHECK
AUDIO SYSTEM Check Sheet
Inspector’s name:
Registration No.
Customer’s Name
Registration Year/Date
Frame No.
km
Brought-in Date
/
/
Odometer Reading
Mile
Date of First Occurrence
/
/
Frequency of Problem Occurrence
F Constant F Intermittent ( Times a day)
F Switch
F Radio
F CD
F Noise
Parts name
DTC (1st time).
DTC (2nd time).
Radio receiver assy
I30195
05-593
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
AUDIO SYSTEM (April, 2003)
055ZX-05
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
(a) There are great differences in the size of the service area
for AM and FM broadcasting. Sometimes FM stereo
broadcast cannot be received even through AM can be
received very clearly.
FM (Stereo)
Not only does FM stereo have the smallest service area,
FM (Monaural)
but it also picks up static and other types of interference
AM
(”noise”) easily.
BE2818
3.
RECEPTION PROBLEMS
HINT:
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.
(a) Fading
Fading
lonosphere
Besides electrical interference, AM broadcasts are also
susceptible to other types of interference, especially at
night. This is because AM radio waves bounce off the ion-
osphere at night. These radio waves then interfere with
the signals from the same transmitter that reach the ve-
hicle’s antenna directly. This type of interference is called
”fading”.
BE2819
05-594
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
(b) Multipath
Multipath
Interference caused by reflection of radio waves against
obstructions is called ”Multipath”. 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 is to be received
directly.
BE2820
(c)
Fade Out
Fade Out
Because of the frequency higher than that of AM, FM ra-
dio wave tends to be reflected against obstructions such
as tall buildings or mountains. For this reason, FM signals
often seems to gradually disappear or fade away as the
vehicle goes behind those obstructions. This phenome-
non is called ”fade out”.
BE2821
4.
NOISE PROBLEMS
(a) It is very important for noise troubleshooting to understand a customer’s claim clearly. Use the following
table to diagnose the phenomenon.
Radio wave
Condition in which noise occurs
Probable cause
Noise occurs at a specific place.
Strong possibility of foreign noise.
Noise occurs when listening to faint broadcasting.
The same program may be broadcasted from some local sta-
AM
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.
FM
Noise occurs at a specific place during driving.
Strong possibility of multipath noise and fading noise caused
by changes of FM frequency.
HINT:
If the condition where the noise occurs does not meet any of the above, find out the cause based on ”Recep-
tion Problems”. Refer to the description about Multipath and Fading mentioned previously.
5.
COMPACT DISC PLAYER
(a) Compact Disc (hereafter called ”CD”) 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. There are 4.7 in. (12 cm) and 3.2
in. (8 cm) discs available for the CD player.
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 player correctly as instructed.
05-595
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
6.
MAINTENANCE
Example:
Tape Player/Head Cleaning:
Head
Capstan
(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.
Pinch Roller
N17398
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.
BE4331
8.
COMMUNICATION SYSTEM
(a)
Components in the audio system communicate each other though AVC-LAN.
(b)
The master component of AVC-LAN is the radio receiver assy with a resistance (60 - 80 W), which
is necessary for communication.
(c)
When short circuit or circuit breakdown occurs in the AVC-LAN circuit, the audio system does not oper-
ate normally due to the communication cutoff.
9.
DIAGNOSIS FUNCTION
(a)
The audio system has diagnosis function (The diagnosis result is displayed on the LCD of the radio
receiver assy).
(b)
The component code (physical address), or three-digit number (in hexadecimal) is set for each com-
ponent comprising AVC-LAN.
(c)
The logical address, or two-digit number (in hexadecimal) is set for each function and component unit
in each component.
05-605
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
05601-02
DIAGNOSTIC TROUBLE CODE CHART
Terms
Meaning
Three-digit code (shown in hexadecimal) which is given to each component com-
Physical address
prising the AVC-LAN.
Corresponding to the function, individual symbols are specified.
Logical address
Two-digit code (shown in hexadecimal) which is given to each function comprising
the inner system of the AVC-LAN.
1.
RADIO RECEIVER ASSY (Physical address: 190)
HINT:
F
*1: Even if no failure is detected, it may be stored depending on the battery condition or voltage for
starting an engine.
F
*2: It is stored when 180 sec. has passed after the power supply connector is pulled out after engine
start.
F
*3: It may be stored when the engine key is turned 1 min. after engine start.
F
*4: It may be stored when the engine key is turned again after engine start.
F
*5: When 210 sec. has passed after pulling out the power supply connector of the master component
with the ignition switch in ACC or ON, this code is stored.
(a)
Logical address: 01 (Communication control)
DTC
Diagnosis item
Description
Action to be taken
22
RAM Error
Abnormal condition of RAM is detected.
Replace radio receiver assy.
D6
Absence of Master
Component in which this code is recorded
F Check harness for power supply system of
*1
had been disconnected from system or
radio receiver assy.
master component with ignition in ACC or
F Check harness for communication system
ON.
of radio receiver assy.
D7
Connection check Error
Component in which this code is recorded
F Check harness for power supply of radio
*5
had been disconnected from system or
receiver assy.
master component ignition with in ACC or
F Check harness for communication system
ON.
of radio receiver assy.
D8
No Response to Connection Check
Component shown by sub code is or had
F Check harness for power supply system of
*2
been disconnected from system after engine
component shown by sub code.
start.
F Check harness for communication system
of component shown by sub code.
D9
Last Mode Error
Audio or visual component operated before
F Check harness for power supply system of
*1
engine stop is or had been disconnected
component shown by sub code.
with ignition switch in ACC or ON.
F Check harness for communication system
of component shown by sub code.
DA
No Response to ON/OFF Manual
No response is identified when changing
F Check harness for power supply system of
mode (audio and visual mode change).
component shown by sub code.
Detected when sound and picture does not
F Check harness for communication system
change by button operation.
of component shown by sub code.
F If error occurs again, replace component
shown by sub code.
DB
Mode Status Error
Dual alarm is detected.
F Check harness for power supply of compo-
*1
nent shown by sub code.
F Check harness for communication system
of component shown by sub code.
Transmission Error
Transmission to component shown by auxil-
If same sub code is recorded in other com-
DC
iary code has been failed.
ponent, check harness for power supply and
*3
(Detecting this DTC does not necessarily
communication system of all components
mean actual failure.)
shown by code.
(If not, delete DTC and recheck.)
05-606
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
DD
Master Reset (Momentary Interruption)
After engine is started, master component
F Check harness for power supply system of
*4
had been disconnected from system.
multi-display.
F Check harness for communication system
of radio receiver assy.
F If this error occurs frequently, replace radio
receiver assy.
DE
Slave Reset (Momentary Interruption)
After engine is started, component shown by
F Check harness for power supply of compo-
*4
sub code had been disconnected from sys-
nent shown by sub code.
tem.
F Check harness for communication system
of component shown by sub code.
E0
Registration Completion Manual Error
”Registration Completion Manual” com-
Since this DTC is provided for engineering
*1
mand from master cannot be received.
purpose, it may be detected when no actual
failure exists.
E2
ON/OFF Manual Parameter Error
Error occures in ON/OFF controlling com-
Replace radio receiver assy
mand from master component.
Registration Request Transmission
Registration Request command is output
Since this DTC is provided for engineering
E3
from component shown by sub code.
purpose, it may be detected when no actual
*1
Receiving Connection Check Manual,
failure exists.
Registration Request command is output
from sub-master component.
(b)
Logical address: 61 (Cassette switch)
DTC
Diagnosis item
Description
Action to be taken
40
Mechanical Error of Media
Malfunction due to mechanical failure is
F Inspect cassette tape.
identified.
F Replace radio receiver assy.
Or cassette tape is cut or entangled.
41
EJECT Error
Malfunction due to mechanical failure.
Replace radio receiver assy.
42
Tape caught in the radio receiver assy
Hub lock etc.
Inspect cassette tape.
(c)
Logical address: 62 (CD player)
DTC
Diagnosis item
Description
Action to be taken
No Disc Readout
Disc cannot be read.
F Inspect CD.
42
F Replace radio receiver assy.
44
CD player Error
Error is detected in CD player.
Replace radio receiver assy.
45
EJECT Error
Magazine cannot be ejected.
Replace radio receiver assy.
Scratched/Reversed Disc
Scratches or dirt is found on CD surface or
Inspect CD.
46
CD is set upside down.
05-607
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
05602-02
LOCATION
Front No.2 Speaker Assy
Engine Room J/B, R/B
Radio and Player
F ALT Fuse
F DOME Fuse
Front No.1 Speaker Assy
Instrument
Panel J/B
F AM1 Fuse
F CIG Fuse
Front No.1
Speaker Assy
Rear Speaker Assy
I32242
05-614
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
057P3-02
NO SOUND IS HEARD FROM SPEAKER IN ALL MODES
WIRING DIAGRAM
P (*2)
Radio and
Player Assy
P (*1)
1
4
2
LG (*1)
P (*1)
P
T4
BE1
IC2
R3
FL+
F8
1
1
Front No.2
Front No.1
Speaker Assy LH
6
2
3
Speaker Assy LH
2
2
L
V (*1)
V
(Tweeter)
BE1
IC2
R3
FL-
(*1)
V (*1)
V (*2)
LG (*2)
LG (*1)
1
4
1
LG (*1)
LG (*1)
LG
F9
BF1
IJ1
R3
FR+
T5
1
1
Front No.1
Front No.2
Speaker Assy RH
Speaker Assy RH
2
3
5
2
2
L
L (*1)
L
(Tweeter)
BF1
IJ1
R3
FR-
(*1)
L (*1)
L (*2)
2
2
B
B
ID1
R4
RL+
R13
1
Rear
6
6
Speaker Assy LH
2
Y
Y
ID1
R4
RL-
1
1
R
R
R4
RR+
ID1
R14
1
Rear
5
3
Speaker Assy RH
2
W
W
R4
RR-
ID1
L-W
Center J/B
Instrument Panel J/B
I10 Ignition SW
20
17
4
6
CIG
8
L-W
L-R
GR
4C
4C
R3
+B
IF
IF
1 AM1
ACC 3
AM1
RH J/B
12
1
W
W
10
7
3
IF
IB
GR
3A
3A
R3
ACC
4
7
IL
IC
Engine Room J/B and R/B
FL MAIN
1
ALT
1
1C
1A
2
1
DOME
L-W
1
2
1
Battery
IF
B
7
BR
*1: w/ Tweeter
R3
GND
*2: w/o Tweeter
I35903
05-615
DIAGNOSTICS
-
AUDIO SYSTEM (April, 2003)
INSPECTION PROCEDURE
1
CHECK LCD (LIQUID CRYSTAL DISPLAY) FOR LIGHTING
(a) LCD Illumination Check
(1)
Turn the ignition switch ACC.
(2)
Turn the radio receiver assembly ON.
Standard: LCD illumination of the radio receiver assembly light.
NG Go to step 7
OK
2
CONTROL FADER AND ADJUST SOUND BALANCE
(a) Fader and Balance Adjustment
(1)
Operate the radio receiver assembly to adjust the fader and the balance to identify the speaker
that does not sound.
(A)
(B)
A specific speaker does not sound.
All speakers do not sound.
B
CHECK AND REPLACE RADIO RECEIVER
ASSY
A
3
INSPECT FRONT NO.1 SPEAKER ASSY
(a) Preparation for Check
(1)
Disconnect the connector of the speaker.
(b) Resistance Check
(1)
Check the resistance between the terminals of the speaker.
NOTICE:
The speaker should not be removed for checking.
Standard value: 4
W
NG REPLACE FRONT NO.1 SPEAKER ASSY
OK
4
INSPECT FRONT NO.2 SPEAKER ASSY
(a) Check that malfunction disappear when a known good speaker is installed.
Standard: malfunction disappear.
HINT:
Connect the all connectors of speakers.
NG REPLACE FRONT NO.2 SPEAKER ASSY
OK
05-616
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
5
INSPECT REAR SPEAKER ASSY
(a) Preparation for Check
(1)
Disconnect the connector of the speaker.
(b) Resistance Check
(1)
Check the resistance between the terminals of the speaker.
NOTICE:
The speaker should not be removed for checking.
Standard value: 6
W
NG REPLACE REAR SPEAKER ASSY
OK
6
CHECK HARNESS AND CONNECTOR(BETWEEN RADIO RECEIVER ASSY AND
SPEAKER)
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
CHECK AND REPLACE RADIO RECEIVER ASSY
7
INSPECT RADIO RECEIVER ASSY(+B, ACC, GND)
(a) Check that the continuity between terminals at each
+B
ACC
condition, as shown in the chart.
Standard:
Tester connection
Condition
Specified condition
GND - Body ground
Constant
Continuity
(b) Check that the voltage between terminals at each condi-
tion, as shown in the chart.
Standard:
GND
I32244
Tester connection
Condition
Specified condition
+B - GND
Constant
10 - 14 V
ACC - GND
Ignition switch ACC or ON
10 - 14 V
OK CHECK AND REPLACE RADIO RECEIVER
ASSY
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR

 

 

 

 

 

 

 

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