Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Echo 2000-2002 Approved techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 02echorm be audsy trou
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BE-94
BODY ELECTRICAL - AUDIO SYSTEM
BE1FH-01
TROUBLESHOOTING
1. DIAGNOSIS FUNCTION
Error codes over tuner and connected equipment are displayed on the screen of tuner.
(a) Diagnosis mode
(1) Diagnosis start-up:
For shifting to diagnosis mode, push "CD" switch 3 times with pressing "1" and "6" of PRESET
switch at the same time while the audio power is OFF and ACC is ON.
To exit from diagnosis mode, press "CD" switch for 2 seconds or turn the ignition key OFF.
(When "1-190" is displayed, the mode is transferred to LAN check mode.)
(2) LAN check:
When starting up the diagnosis mode, the mode turns to LAN check mode, the screen displays
the code numbers (physical address) of tuner and connected equipment. Smaller codes are dis-
played in order, displayed code numbers are switched by operating TUNE "UP" or "DOWN"
switch. In LAN check mode, by pressing "5" of PRESET switch for more than 2 secs., diagnosis
memory of each equipment can be deleted, when deletion is completed, the mode returns to LAN
check mode.
"CD" Switch
TUNE "UP" or PRESET Switch
"DOWN" Switch
I12393
Code No. (physical address) List
Code No. (physical address) Equipment name
190 Radio receiver assembly (Audio head unit)
(b) System check
S When pressing "1" of PRESET switch in LAN check mode, the mode turns to the system check
mode, the system performs self diagnosis of connected equipment and displays the re-
sults.("SYS" (showing the system is under detection) is displayed.)
S Perform the operation shown in the following illustration, then read the result of the inspection.
2002 ECHO (RM884U)
Author : Date : 1298
BE-95
BODY ELECTRICAL - AUDIO SYSTEM
HINT:
S It sometimes takes approx. 40 secs. till the system inspection is completed.
S The chart below is an example of when diagnosis code "21" appears on the physical address (190)
equipment. (ROM error occurs on the radio receiver.)
S The smaller code numbers (physical address) are displayed in order (code No., diagnosis code, sup-
port code of diagnosis code (object equipment)).
S When no error is detected in the system, "00" is displayed.
S When an error code is detected, up to 6 codes per one system are displayed. Pressing TUNE "UP"
or "DOWN" switches the display.
S In the system check mode, when pressing "6" of PRESET switch the mode returns to LAN check mode.
H: This shows the equipment has a diagnosis code.
190: Physical address
Pressing TURN "DOWN"
Pressing TURN "UP"
1: This is the number allotted to the diagnosis code
that occurred.
21: DTC No.
1: This is the number allotted to the diagnosis code
that occurred.
: NO DTC No.
.
. .
.
. .
Last Code No.
(c) Diagnosis memory
(1) In LAN check mode, when pressing "2" of PRESET switch the mode turns to the diagnosis
memory mode. ("CODE" is displayed.)
The results of self diagnosis performed over tuner and connected equipment are memorized and
displayed.
(2) Perform the operation shown in the following illustration, then read the result of the inspection.
HINT:
S The smaller code numbers (physical address) are displayed in order (code No. , periodic communica-
tion number when error occurs, diagnosis code, and support code of diagnosis code (object equip-
ment)).
S When no error is detected in the system, "00" is displayed. When an error code is detected, up to 6
codes per one system are displayed. Pressing TUNE "UP" or "DOWN" switches the display. Each diag-
nosis code is same as code in the system check mode.
S When pressing "6" of PRESET switch, the mode returns to LAN check mode.
S The following illustration below is an example of when diagnosis code "D1" appears on the code (190)
and (360) equipment. (Communication error occurs between the radio receiver and CD changer.)
2002 ECHO (RM884U)
Author : Date : 1299
BE-96
BODY ELECTRICAL - AUDIO SYSTEM
06: Periodic communication number of when
occurring in the diagnosis memory code.
Pressing TURN "UP"
Pressing TURN "DOWN"
H: This shows the equipment has a diagnosis code.
190: Physical address
1: This is the number allotted to the diagnosis code
that occurred.
21: Periodic communication number of when
occurring in the diagnosis memory code.
1: This is the number allotted to the diagnosis code
that occurred.
d1: DTC No.
1: This is the number allotted to the diagnosis code
*
that occurred.
360: Physical address
(Equipment that is communicating code)
.
. .
.
. .
*: This code is an example for CD changer
Last Code No. in the dealer option, and there are some
other optionals.
(d) Diagnosis memory clear
(1) After error is fixed, start up the diagnosis mode.
(2) Continue pressing "5" of PRESET switch for 2 secs. (CLr is displayed.)
(3) Press the "2" of PRESET switch and transfer to the diagnosis memory mode and check that the
normal code (00) is output.
2002 ECHO (RM884U)
Author : Date : 1300
BE-97
BODY ELECTRICAL - AUDIO SYSTEM
2. DIAGNOSIS CODE LIST
S If there is "O" in the column of system check, an error can be detected when the mode is switched to
the system check mode.
S If there is "O" in the column of diagnosis mode, each unit is monitoring whether or not it has failure.
In case of detecting failure, it memorizes DTC.
Parts Countermeasure System Diagnosis
DTC Diagnosis item Diagnosis content
Name and inspected parts Check memory
42 FM tuner error There is an error in FM tuner. X f
There is an error in cassette
50 Cassette error X f
deck. Radio receiver check.
Cassette can not be ejected
51 Cassette eject error
from Head Unit. X f
Head Communication with the
Unit Radio receiver check.
equipment that is f f
(190) D1 Transmitter error communicating has failed
Wire harness and
connecter check.
successively.
Periodic
D2 communication Error in periodic D Wire harness and X f
communication. connector
no response
Result of diagnosis is not
FF Diagnosis no response
issued from start to finish. Radio receiver check. f X
2002 ECHO (RM884U)
Author : Date : 1301
BE-98
BODY ELECTRICAL - AUDIO SYSTEM
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.
S Open or short circuit of the wire harness
S Connector or terminal connection fault
Problem No.
Radio No power coming in. 1
Power coming in, but radio not operating. 2
Noise present, but AM - FM not operating. 3
Any speaker does not work. 4
Either AM or FM does not work. 5
Reception poor (Volume faint). 5
Few preset tuning bands. 5
Sound quality poor. 6
Cannot set station select button. 6
Preset memory disappears. 7
Tape Player Cassette tape cannot be inserted. 8
Cassette tape inserted, but no power. 9
Power coming in, but tape player not operating. 10
Any speaker does not work. 11
Sound quality poor (Volume faint). 12
Tape jammed, malfunction with tape speed or auto-reverse. 13
APS, SKIP, RPT buttons not operating. 14
Cassette tape will not ejected. 15
CD Player CD 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
Antenna Antenna-related. 23
Noise Noise produced by vibration or shock while driving. 24
Noise produced when engine starts. 25
2002 ECHO (RM884U)
Author : Date : 1302
BE-99
BODY ELECTRICAL - AUDIO SYSTEM
1 Radio NO POWER COMING IN
Yes
Is tape player operating normally? Radio assembly faulty.
No
NG
Check if ACC fuse is OK? Replace fuse.
OK
No
Is ACC applied to radio? ACC wire harness faulty.
Yes
NG
Check if GND (wire harness side) to radio is OK? GND wire harness faulty.
OK
Radio assembly faulty.
2 Radio POWER COMING ON, BUT RADIO NOT OPERATING
A Antenna w/o Motor
If radio side
A faulty
Go to No.23. Radio faulty.
Do speakers pop when the volume switch is turned
to maximum and when the power is switched ON?
No
Yes No
Is tape player operating normally? Is power for the antenna Radio assembly
being output from the radio faulty.
No or radio assembly?
Yes
Go to No.23.
No
Does continuity exist in speaker wire harness? Speaker wire harness faulty. If radio side
faulty
Yes
Radio assembly
Yes Speaker faulty. faulty.
Temporarily install another speaker
Functions OK?
No
Radio assembly faulty.
V07430
2002 ECHO (RM884U)
Author : Date : 1303
BE-100
BODY ELECTRICAL - AUDIO SYSTEM
3 Radio NOISE PRESENT, BUT AM-FM NOT OPERATING
No
Is power for the antenna being output from the Radio assembly faulty.
radio or radio assembly?
Yes
Go to No.23.
If radio faulty
Radio assembly faulty.
Yes
Is tape player operating normally? Radio assembly faulty.
No
No
Hiss noise from speaker? Power amplifier faulty. Recheck system after repair.
Yes
Radio assembly faulty. Recheck system after repair.
4 Radio ANY SPEAKER DOES NOT WORK
Yes
Is tape player operating normally? Radio assembly faulty.
No
Is hiss noise produced by non-functioning speaker? Yes Radio assembly faulty.
No
No
Does continuity exist in speaker wire harness? Speaker wire harness faulty.
Yes
Yes
Temporarily install another speaker. Speaker faulty.
Functions OK?
No
Radio assembly faulty.
V07431
2002 ECHO (RM884U)
Author : Date : 1304
BE-101
BODY ELECTRICAL - AUDIO SYSTEM
EITHER AM OR FM DOES NOT WORK, RECEPTION
5 Radio POOR (VOLUME FAINT), FEW PRESET TUNING BANDS
Yes
Problem with radio wave signals or location? Poor signals or poor location.
No
No
Are both AM and FM defective? Radio assembly faulty.
Yes
Is power for the antenna being output from No
the radio assembly?
Yes
Go to No.23.
If radio faulty.
Yes
Is tape player operating normally? Radio assembly faulty.
No
Yes
Temporarily install another speaker. Speaker faulty.
Functions OK?
No
Radio assembly faulty.
V07432
2002 ECHO (RM884U)
Author : Date : 1305
BE-102
BODY ELECTRICAL - AUDIO SYSTEM
6 Radio SOUND QUALITY POOR
No Yes
Is sound quality always bad? Is sound quality bad in Poor signals or poor
certain areas only? location.
Yes
No
Radio assembly faulty.
Yes
Is tape player operating normally? Go to No.23.
No If radio side faulty
Radio assembly faulty.
Is speaker properly installed? No
Install properly.
Yes
Yes
Temporarily install another speaker. Speaker faulty.
Function OK?
No
Go to No.23. If radio faulty
Radio assembly faulty.
CANNOT SET STATION SELECT BUTTON, PRESET
7 Radio MEMORY DISAPPEARS
Yes
Can cassette tape be inserted in tape player? Radio assembly faulty.
No
NG
Check if DOME fuse is OK? Replace fuse.
OK
No
Is +B applied to radio or radio assembly? +B wire harness faulty.
Yes
NG
Check if GND (wire harness side) to GND faulty.
radio assembly is OK?
OK
Radio assembly faulty.
V07433
2002 ECHO (RM884U)
Author : Date : 1306
BE-103
BODY ELECTRICAL - AUDIO SYSTEM
8 Tape Player CASSETTE TAPE CANNOT BE INSERTED
Yes
Is there a foreign object inside tape player? Remove foreign object.
No
Yes
Is radio operating normally? Radio assembly faulty.
No
NG
Check if DOME fuse is OK? Replace fuse.
OK
No
Is +B applied to radio assembly? +B wire harness faulty.
Yes
NG
Check if GND (wire harness side) to radio assembly GND faulty.
is OK?
OK
Radio assembly faulty.
9 Tape Player CASSETTE TAPE INSERTED, BUT NO POWER
Yes
Is radio operating normally? Radio assembly faulty.
No
NG
Check if ACC fuse is OK? Replace fuse.
OK
No
Is ACC applied to radio assembly? ACC wire harness faulty.
Yes
Radio assembly faulty.
V07434
2002 ECHO (RM884U)
Author : Date : 1307
BE-104
BODY ELECTRICAL - AUDIO SYSTEM
POWER COMING IN, BUT TAPE PLAYER NOT
10 Tape Player OPERATING
Yes
Functions OK if different cassette tape inserted? Cassette tape faulty.
No
Yes
Is radio operating normally? Radio assembly faulty.
No
No
Does continuity exist in speaker wire harness? Speaker wire harness faulty.
Yes
Yes
Temporarily install another speaker. Speaker faulty.
Functions OK?
No
Radio assembly faulty.
11 Tape Player ANY SPEAKER DOES NOT WORK
Yes
Is radio operating normally? Radio assembly faulty.
No
Yes
Is hiss noise produced by non-functioning speaker? Radio assembly faulty.
No
No
Does continuity exist in speaker wire harness? Speaker wire harness faulty.
Yes
OK
Temporarily install another speaker. Speaker faulty.
Functions OK?
NG
Radio assembly faulty.
V07435
2002 ECHO (RM884U)
Author : Date : 1308
BE-105
BODY ELECTRICAL - AUDIO SYSTEM
12 Tape player SOUND QUALITY POOR (VOLUME FAINT)
Yes
Functions OK if different cassette tape inserted? Cassette tape faulty.
No
Yes
Operates normally after cleaning the tape head? Tape head dirty.
No
Yes
Is radio operating normally? Radio assembly faulty.
No
No
Is speaker properly installed? Install properly.
Yes
Yes
Temporarily install another speaker. Functions OK? Speaker faulty.
No
Radio assembly faulty.
TAPE JAMMED, MALFUNCTION WITH TAPE SPEED OR
13 Tape Player AUTO-REVERSE
Yes Cassette tape faulty.
Functions OK if different tape (90 mins. or shorter) is inserted?
No
Yes
Is there a foreign object inside tape player? Remove foreign object.
No
Operates normally after cleaning the tape head? Yes Tape head dirty.
No
Radio assembly faulty.
V04922
2002 ECHO (RM884U)
Author : Date : 1309
BE-106
BODY ELECTRICAL - AUDIO SYSTEM
14 Tape Player APS, SKIP, RPT BUTTONS NOT OPERATING
No
Functions OK if different cassette tape inserted? Radio assembly faulty.
Yes
Cassette tape faulty. {Less than 3 secs. of silence between songs (APS, RPT).
Less than 15 secs. of silence (SKIP).}
15 Tape Player CASSETTE TAPE WILL NOT BE EJECTED
No
Is tape player operating normally? Cassette tape jammed.
Yes
Yes
Is radio operating normally? Radio assembly faulty.
No
NG
Check if DOME fuse is OK? Replace fuse.
OK
No
Is +B applied to radio assembly? +B wire harness faulty.
Yes
Radio assembly faulty.
V07436
2002 ECHO (RM884U)
Author : Date : 1310
BE-107
BODY ELECTRICAL - AUDIO SYSTEM
16 CD Player CD CANNOT BE INSERTED
Yes
Is CD already inserted? Eject CD.
No
Yes No
Is auto search button of radio operating normally? Is +B applied to CD player? Radio assembly
faulty.
Yes
Check if GND wire harness side
NG
to CD player is OK?
No
OK
CD player faulty.
NG
Check if DOME fuse is OK? Replace fuse.
OK
No
Is +B applied to radio assembly? +B wire harness faulty.
Yes
NG
Check if GND (wire harness side) to radio assembly is OK? GND faulty.
OK
Radio assembly faulty.
17 CD Player CD INSERTED, BUT NO POWER
Yes Is ACC applied to CD player? No
Is radio operating normally? Radio assembly
faulty.
Yes
No
CD player faulty.
NG
Check if ACC fuse is OK? Replace fuse.
OK
No
Is ACC applied to radio assembly? ACC wire harness faulty.
Yes
Radio assembly faulty.
I05488
2002 ECHO (RM884U)
Author : Date : 1311
BE-108
BODY ELECTRICAL - AUDIO SYSTEM
18 CD Player POWER COMING IN, BUT CD PLAYER NOT OPERATING
No
Is CD inserted with correct side up? Insert correctly.
Yes
Yes
Function OK if different CD inserted? CD faulty.
No
Is radio operating normally? Yes Yes
Is temperature inside cabin hot?
Protective circuit in
No operation.
Yes
No Has sudden temperature change Formation of condensation
occurred inside cabin? due to temp. changes.
No
CD player faulty.
No
Is there continuity in speaker wire harness? Speaker wire harness faulty.
Yes
Temporarily install another speaker. Yes
Speaker faulty.
Functions OK?
No
Radio assembly faulty. Recheck system after repair.
19 CD Player SOUND SKIPS
Yes
Does sound skip only during strong vibration? Skipping caused by vibration.
No
No
Is CD player properly installed? Install properly.
Yes
Yes
Functions OK if different CD inserted? CD faulty.
No
Yes
Has sudden temperature change occurred inside cabin? Formation of condensation due to
temp. changes.
No
CD player faulty.
I05489
2002 ECHO (RM884U)
Author : Date : 1312
BE-109
BODY ELECTRICAL - AUDIO SYSTEM
20 CD Player SOUND QUALITY POOR (VOLUME FAINT)
Yes
Function OK if different CD inserted? CD faulty.
No
Is radio operating normally? Yes
CD player faulty.
No
Is speaker property installed? No
Install properly.
Yes
Temporarily install another speaker. Yes
Speaker faulty.
Functions OK?
No
Radio assembly or CD player faulty.
21 CD Player ANY SPEAKER DOES NOT WORK
Yes
Is radio operating normally? CD player faulty.
No
Yes Radio assembly faulty.
Is hiss noise produced by non-functioning speaker?
Recheck system after repair.
No
No
Is there continuity in speaker wire harness? Speaker wire harness faulty.
Yes
Temporarily install another speaker. Yes
Speaker faulty.
Function OK?
No
Radio assembly faulty.
Recheck system after repair.
V08551
2002 ECHO (RM884U)
Author : Date : 1313
BE-1 10
BODY ELECTRICAL - AUDIO SYSTEM
22 CD Player CD WILL NOT BE EJECTED
Is auto search button of radio Yes No Radio assembly
Is +B applied to CD player?
operating normally? faulty.
Yes
CD player faulty.
No
NG
Check if DOME fuse is OK? Replace fuse.
OK
No
Is +B applied to radio assembly? +B wire harness faulty.
Yes
Radio assembly faulty.
I05490
2002 ECHO (RM884U)
Author : Date : 1314
BE-1 11
BODY ELECTRICAL - AUDIO SYSTEM
23 Antenna ANTENNA-RELA TED
No
Is antenna extended. Extend fully.
Yes
Yes
Temporarily install another antenna. Antenna faulty.
Functions OK?
No
Radio side faulty.
NOISE PRODUCED BY VIBRATION OR SHOCK WHILE
24 Noise DRIVING
No
Is speaker properly installed? Install properly.
Yes
No
Is each system correctly installed?
Yes
With vehicle stationary, lightly tap each system. Yes Each system faulty.
Is noise produced?
No
Noise produced by static electricity accumulating
in the vehicle body.
V04924
2002 ECHO (RM884U)
Author : Date : 1315
BE-1 12
BODY ELECTRICAL - AUDIO SYSTEM
25 Noise NOISE PRODUCED WHEN ENGINE STARTS
Whistling noise which becomes high-pitched Yes
Generator noise.
when accelerator strongly depressed, disappears
shortly after engine stops.
No
Yes
Whining noise occurs when A/C is operating. A/C noise.
No
Scratching noise occurs during sudden Yes
Fuel gauge noise.
acceleration, driving on rough roads or when
ignition switch is turned on.
No
Clicking sound heard when horn button is Yes
Horn noise.
pressed, then released. Whirring/grating sound
when pushed continuously.
No
Yes
Murmuring sound stops when engine stops. Ignition noise.
No
Yes
Tick-tock noise, occurs in synch with blinking of flasher. Turn signal noise.
No
Yes
Noise occurs during window washer operation. Washer noise.
No
Scratching noise occurs while engine is running, Yes
Engine coolant temperature gauge noise.
continues a while even after engine stops.
No
Yes
Scraping noise in synch with wiper beat. Wiper noise.
No
Other type of noise.
V08467
2002 ECHO (RM884U)
Author : Date : 1316
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