Toyota Corolla (2004+). Manual — part 42
05-637
DIAGNOSTICS
-
AUDIO SYSTEM (April, 2003)
0560L-02
NOISE OCCURS
INSPECTION PROCEDURE
1
CHECK OF SPEAKER INSTALLATION
(a) Check speaker installation condition.
(1)
Check that each speaker is securely installed.
Standard: malfunction disappear.
HINT:
The radio is equipped with noise prevention system that does not work against the regular use of the radio,
thereby excessively large noise cannot occur in the radio. If large noise occurs, check whether or not the
earth on the antenna installation part and the proper noise-prevention equipment are all installed, and
whether or not the improper wiring is held.
Condition in which noise occurs
Noise type
Depressing the acceleration pedal increases noise, and stopping the engine
Alternator noise
erases the noise immediately.
Noise occurs during the A/C or the heater operation.
Blower motor noise
Rapid acceleration during the drive on the unpaved road or after the IG
Fuel pump noise
switch is turned ON makes noise.
Pressing and then releasing the horn switch, and keeping pressing the horn
Horn noise
switch makes noise.
Stopping the engine erases the small noise that has been heard.
Ignition noise
Noise occurs in turn with the blink of the turn signal flash.
Flasher noise
Noise occurs during the window washer operation.
Washer noise
Noise occurs during the engine running, and it continues to occur after the
Water temperature sensor noise
engine is stopped.
Noise occurs during the wiper operation.
Wiper noise
Noise occurs when the brake pedal is depressed.
Stop light switch noise
Others.
Static electricity on the vehicle
HINT:
F
Identify the condition under which the noise occurs, and check the noise filter on the related part.
F
Make sure first that there is no noise from outside. Failing to do so makes the noise occurrence source
detection impossible and leads to misunderstanding.
F
The noise should be removed in descending order of loudness.
NG INSTALL IT PROPERLY
OK
IDENTIFICATION OF NOISE SOURCE
05-629
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
057P9-02
ALTHOUGH SYSTEM IS POWERED,CD CANNOT BE PLAYED
WIRING DIAGRAM
See Page 05-610
INSPECTION PROCEDURE
1
CHECK IF A PROPER CD IS INSERTED
(a) Check that a proper CD is inserted.
(1)
Make sure that the CD is a normal audio CD, and that there is no deformation, flaw, stain, burr
and other defects on the CD.
Standard: Normal audio CD.
Reference:
F
Translucent or different-shaped CD cannot be played.
F
CD-ROM for personal computers (with music recorded in) and recorded CD-R may not be played.
F
Playing an 3.2 in. (8-cm) CD does not require an adapter.
NG CD FAULTY
OK
2
CHECK THAT A PROPER CD IS INSERTED
(a) Check that a proper CD is inserted.
(1)
Check whether or not the CD is inserted upside down.
Standard: Not upside down.
NG SET DISC CORRECTLY
OK
3
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.
OK DISC DIRTY
E50013
NG
05-630
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
4
REPLACE CD WITH ANOTHER AND RECHECK
(a) Replace the CD with another and recheck.
(1)
Replace the faulty CD with the normal one to see if the same trouble occurs again.
Standard: malfunction disappear.
OK CD FAULTY
NG
5
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 7
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
05-631
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
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
05-610
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
057P1-01
PRESSING POWER SWITCH DOES NOT START SYSTEM
WIRING DIAGRAM
Radio and
Player Assy
Center J/B
20
17
4
L-W
L-W
4C
4C
R3
+B
I10
Instrument Panel J/B
RH J/B
Ignition SW
6
CIG
8
10
7
3
L-R
GR
GR
IF
IF
3A
3A
R3
ACC
1
AM1 ACC 3
Engine Room J/B and R/B
12
AM1
1
1
ALT
1
W
W
IF
IB
1C
1A
2
1
4
7
DOME
L-W
L-W
IL
IC
1
2
1
FL MAIN
B
7
BR
R3
GND
Battery
IF
I32255
05-611
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
INSPECTION PROCEDURE
1
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
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
CHECK AND REPLACE RADIO RECEIVER ASSY
05-599
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
05600-05
PRE-CHECK
1.
DIAGNOSIS CHECK
(a) Starting Diagnosis Mode (Service Check Mode)
(1)
Turn off the audio system and turn the IG switch to
ACC. While pressing the preset switches ”1” and ”6”
at the same time, press ”CD” 3 times.
(2)
Reference:
F
Beep sound is given 3 times and the system
I32241
enters the service check mode.
F
It may take about 40 sec. to complete the
check.
F
In the service check mode, the system check
and the diagnosis memory check are per-
formed, and the check results are displayed
in ascending order of the device codes.
(physical address)
Terms
Meaning
Three-digit code (In hexadecimal) given to each device
Component code
comprising AVC-LAN. Corresponding to its function, individ-
(Physical address)
ual symbol is provided.
Two-digit code (In hexadecimal) given to each function and
Logical address
device unit in each device comprising AVC-LAN.
Code No. (physical address) List
Code No.
Equipment name
(physical address)
190
Radio receiver assy (Audio head unit)
(b) Finishing Diagnosis Mode
(1)
Press ”CD” for 2 sec. or more, or turn the IG switch
OFF.
05-600
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
(c)
Service Check Mode Result Display (for checking the cur-
rent and the past system conditions)
(1)
Press the ”TUNE” switch to see the check result of
each device.
P---physical address
190---device code
good---”The component is normal”.
P---physical address
440---component code
CHEC---”Check needed”.
The illustration shows the case that the system has 2 devices with codes 190 and 440, and the device (code
440) has a trouble.
The check result is displayed in ascending order of device code. The device code is displayed first, then the
check result.
I32773
(2)
Check Result Display
Display
Original Language
Meaning
Action to be taken
No DTC is detected in both ”System Check Mode” and
good
Good (normal)
-
”Diagnosis Memory Mode”.
Check the power source cir-
The system recognized the component when it was regis-
cuit and the communication
nCon
No connection
tered, but the component gives no response to the ”Diagno-
circuit of the device indi-
sis Mode ON Request”.
cated by the device code
(physical address).
Go to the detail information
One or more DTC for ”Exchange” is detected in either ”Sys-
mode to check the trouble
ECHn
Exchange
tem Check Mode” or ”Diagnosis Memory Mode”.
area referring to the DTC
list.
Go to the detail information
When no DTC is detected for ”Exchange”, one or more DTC
mode to check the trouble
CHEC
Check
for ”Check is detected in either ”System Check Mode” or
area referring to the DTC
”Diagnosis Memory Mode”.
list.
05-601
DIAGNOSTICS
-
AUDIO SYSTEM (April, 2003)
Display
Original Language
Meaning
Action to be taken
Old DTC application is identified and DTC is detected in ei-
Old
Old version
-
ther ”System Check Mode” or ”Diagnosis Memory Mode”.
Check the power source cir-
The device gives no response to any one of ”System Check
cuit and the communication
nrES
No response
Mode ON Request”, ”System Check Result Request” and
circuit of the device indi-
”Diagnosis Memory Request”.
cated by the device code
(physical code).
(3)
To perform the Service Check again, press the pre-
set switch ”1”.
(d) Detail information Mode (when displaying the troubled
device’s DTC)
(1)
With ”CHEC” or ”ECHn” being display, press the
preset switch ”2” to go to the detail information
mode.
(2)
Press the ”TUNE” switch to display ”System Check
Result (SyS)” and ”Diagnosis Memory Response
(COdE)”.
05-602
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
Service Check Mode
TUNE
TUNE
PRESET SWITCH ”3”
PRESET SWITCH ”2”
Detail Information Mode
P---physical address
*1
190---component code
TUNE
TUNE
SyS---system check result
TUNE
TUNE
1---the first code
Detail information
62---logical address
of the first code
TUNE
TUNE
is displayed
47---DTC
TUNE
TUNE
Continue to display detail information
when more than one DTC is detected.
TUNE
TUNE
COdE---diagnosis memory
response result
TUNE
TUNE
2---the second code
01---logical address
TUNE
TUNE
DC---DTC
Detail information
TUNE
TUNE
of the second code
P---physical address
is displayed
440---sub code
(*2)
TUNE
TUNE
6F---connection
check number
TUNE
TUNE
05---the number of times of
occurrence
(in decimal)
TUNE
TUNE
Continue to display detail information
when more than one DTC is detected.
From *1
To *1
The illustration shows the case that the component with code 190 has DTC ”47” and ”DC” as a result of the
system check and the diagnosis memory response.
The detail information mode shows the system check result first, then the diagnosis memory response result.
(*2): As for DTC that does not have any sub code, sub code is not displayed.
I32774
05-603
DIAGNOSTICS
-
AUDIO SYSTEM (April, 2003)
(3)
Displayed Items in Detail Information Mode
Order of detailed information displayed when the ”TUNE UP”
Division Code for
Meaning
switch is pressed. (The order is reversed when the ”TUNE
DTC display
DOWN” switch is pressed.)
Logical address
SyS
System check result is displayed.
DTC
Logical address
DTC
COdE
Diagnosis memory check result is displayed.
Sub code
Connection confirmation number
The number of times of occurrence
(4)
Check the trouble area referring to the DTC list.
(See page 05-605)
(5)
To return to the service check mode, press the pre-
set switch ”3”.
(e) Clearing Individual DTC Memory (when clearing the
memory of DTC detected in the pest individually)
(1)
Press the preset switch ”5” for 2 sec. or more while
the ”ECHn” is displayed in the service check mode
or during the detail information mode.
HINT:
F
Beep sound is given once when the DTC memory is com-
pletely cleared.
F
When DTC memory is cleared, only the component code
(physical address) is displayed for the target component.
F
To check DTC, press the preset switch ”1” and perform the
service check again.
(f)
Clearance of all DTC memory (when clearing all the
memory of DTC detected in the past)
(1)
Start the diagnosis mode after repairing the trouble
area.
(2)
Press the preset switch ”5” for 2 sec. or more. (”CLr”
is displayed at this time.)
HINT:
F
Beep sound is given once when the DTC memory is com-
pletely cleared.
F
When DTC memory for all the device is cleared, only the
component codes (physical address) are displayed.
(3)
Press the preset switch ”1” to perform the service
check again, and check that no DTC is displayed for
all the component codes. (physical address)
05-604
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
2.
IDENTIFICATION OF NOISE SOURCE
(a) Identify the condition under which the noise occurs, and
check the noise filter on the related part.
Condition in which noise occurs
Noise Source
Depressing the acceleration pedal increases noise, and stopping the engine
Generator
erases the noise immediately.
Noise occurs during the A/C or the heater operation.
Blower motor
Rapid acceleration during driving on the unpaved road or after the IG switch
Fuel pump
is turned ON makes noise.
Pressing and then releasing the horn switch, and keeping pressing the horn
Horn
switch makes unusual noise.
Stopping the engine erases small noise that has been heard.
Ignition
Noise occurs synchronously with the turn signal flash.
Flasher
Noise occurs during the window washer operation.
Washer
Noise occurs during the engine running, and it continues after the engine is
Engine coolant temperature sensor
stopped.
Noise occurs during the wiper operation.
Wiper
Noise occurs when the brake pedal is depressed.
Stop light switch
Others.
Static electricity stored on the vehicle
(b) Reference:
F
Make sure first that there is no noise from outside.
Failing to do so makes the noise source detection
difficult and leads to misunderstanding.
F
The noise should be removed in descending order
of loudness.
F
Setting the radio untuned makes noise noticeable,
making the recognition of the phenomenon easier.
05-612
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
057P2-02
TURNING ON LIGHT SWITCH DOES NOT LIGHT UP NIGHT TIME
ILLUMINATION OF RADIO RECEIVER
WIRING DIAGRAM
Radio and
RH R/B
Player Assy
TAIL Relay
10
G-W
G (*1) G
3
3
R3
ILL+
(*1)
3
5
G (*2)
Instrument Panel J/B
G-B (*1)
1
TAIL
7
3
3
D2
W
1
2
IB
IH G-W (*1)
Daytime
Running
G-W (*2)
Light Relay
Engine Room J/B and R/B
G-W (*1)
C12
T
1
ALT
1
15
Combination SW
13
1C
1A
TAIL
E T
14
2
1
Light
OFF
B
Control SW
Tail
Head
Center J/B
FL
10
G (*2)
21
11
MAIN
W-B (*1)
4B
4B
R7
Rheostat
19
W-B
5
4B
GND
W-B
3
ILL-
R4
ILL-
1
7
W-B
BR
R3
GND
A
J6
Battery
IE
IF
J/C
*1: USA
*2: Canada
I32256
05-613
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
INSPECTION PROCEDURE
1
INSPECT RADIO RECEIVER ASSY(ILL+, ILL-)
(a) Check that the voltage between terminals at each condi-
tion, as shown in the chart.
Standard:
Tester connection
Condition
Specified condition
Light control switch TAIL
ILL+ - GND
10 - 14 V
or HEAD
Light control switch
ILL- - GND
10 - 14 V
HI or FLASH
ILL+
GND ILL-
I32244
OK CHECK AND REPLACE RADIO RECEIVER
ASSY
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
05-625
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
0560D-02
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 and recheck.
(1)
Replace the faulty cassette tape with the normal one to see if the same trouble occurs again.
Standard: malfunction disappear.
OK CASSETTE TAPE FAULTY
NG
2
CHECK FOR ANY FOREIGN OBJECT
(a) Check for foreign object.
(1)
Check that no foreign material and troubles are detected in the radio receiver assembly cassette
tape player.
NG REMOVE FOREIGN OBJECT
OK
3
CLEAN HEAD AND CHECK OPERATION
(a) Head cleaning
(1)
Raise the cassette door with your finger. Next, using
Capstan
a pencil or similar object, push in the guide.
Head
(2)
Using a cleaning pen or cotton applicator soaked in
cleaner, clean the head surface, pinch rollers and
capstans.
(3)
Check that the same trouble occurs again.
Pinch Roller
N17398
OK HEAD DIRTY
NG
CHECK AND REPLACE RADIO RECEIVER ASSY
Большое спасибо!
Ваше мнение очень важно для нас.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст