TOYOTA AVALON 2001 Service Repair Manual
Manufacturer: TOYOTA, Model Year: 2001, Model line: AVALON, Model: TOYOTA AVALON 2001Pages: 1897, PDF Size: 26.61 MB
Page 151 of 1897
BE16M-03
e162AI14592
Connector ºAº
Connector ºBº Power amplifier side
1 2 3 4 5 6
7 8 14 13 12 11 10 9
- BODY ELECTRICALAUDIO SYSTEM
BE-161
1765 Author: Date:
2001 AVALON (RM808U)
INSPECTION
1. INSPECT POWER AMPLIFIER CIRCUIT
Connect the connector from power amplifier and inspect the
connector on the wire harness side.
Tester connectionConditionSpecified condition
A1 - Ground
(FR+)Audio sounding5 - 7 V
A2 - Ground
(FL+)Audio sounding5 - 7 V
A3 - Ground
(RR+)Audio sounding5 - 7 V
A4 - Ground
(Rl+)Audio sounding5 - 7 V
A5 - Ground
(WFl+)Audio sounding5 - 7 V
A7 - Ground
(+B)ConstantBattery positive voltage
A8 - Ground
(FR-)Audio sounding5 - 7 V
A9 - Ground
(FL-)Audio sounding5 - 7 V
A10 - Ground
(RR-)Audio sounding5 - 7 V
A11 - Ground
(RL-)Audio sounding5 - 7 V
A13 - Ground
(GND)ConstantContinuity
A14 - Ground
(WFL-)Audio sounding5 - 7 V
B1 - Ground
(AMP+)Radio power switch ONBattery positive voltage
B2 - Ground
(ACC)Ignition switch ONBattery positive voltage
B4 - Ground
(BEEP)Audio sounding-
B5 - Ground
(FLIN)Audio sounding5 - 7 V
B6 - Ground
(FRIN)Audio sounding5 - 7 V
Page 152 of 1897
BE-162
- BODY ELECTRICALAUDIO SYSTEM
1766 Author: Date:
2001 AVALON (RM808U)B11 - Ground
(SGND)
ConstantContinuity
B12 - Ground
(MUTE)Audio sounding1 V or below
B13 - Ground
(RLIN)Audio sounding5 - 7 V
B14 - Ground
(RRIN)Audio sounding5 - 7 V
If the circuit is not as specified, inspect the circuits connected
to other parts.
Page 153 of 1897
I14591
Connector ºAºConnector ºBº Radio Receiver Side
Connector ºCº
- BODY ELECTRICALAUDIO SYSTEM
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2001 AVALON (RM808U)
2. INSPECT RADIO RECEIVER ASSEMBLY CIRCUIT
Connect the connectors from the radio receiver assembly, and
inspect the connector on the wire harness side.
Tester connectionConditionSpecified condition
A1 - Ground
(FR+)Audio sounding5 - 7 V
A2 - Ground
(FL+)Audio sounding5 - 7 V
A3 - Ground
(ACC, +B)Ignition switch ACCBattery positive voltage
A4 - Ground
(BU +B)ConstantBattery positive voltage
A5 - Ground
(FR-)Audio sounding5 - 7 V
A6 - Ground
(FL-)Audio sounding5 - 7 V
A7 - Ground
(GND)ConstantContinuity
A8 - Ground
(ANT +B)Radio power switch ONBattery positive voltage
A10 - Ground
(ILL+)Headlight dimmer switch ONBattery positive voltage
B1 - Ground
(RR+)Audio sounding5 - 7 V
B2 - Ground
(RL+)Audio sounding5 - 7 V
B3 - Ground
(RR-)Audio sounding5 - 7 V
B4 - Ground
(RL-)Audio sounding5 - 7 V
C1 - Ground
(+B)ConstantBattery positive voltage
C2 - Ground
(ILL+)Hesdlight dimmer switch ONBattery positive voltage
C3 - Ground
(AMP+)Rasio switch ONBattery positive voltage
C7 - Ground
(MUTE)Audio sounding1V or below
Page 154 of 1897
BE-164
- BODY ELECTRICALAUDIO SYSTEM
1768 Author: Date:
2001 AVALON (RM808U)C8 - Ground
(FR+)
Audio sounding5 - 7 V
C9 - Ground
(FL+)Audio sounding5 - 7 V
C10 - Ground
(SLD)ConstantContinuity
C11 - Ground
(ACC)Ignition switch ONBattery positive voltage
C13 - Ground
(ANT+B)Radio power switch ON10 - 14V
C16 - Ground
(S-GND)ConstantContinuity
C17 - Ground
(BEEP)Audio sounding-
C18 - Ground
(RR)Audio sounding5 - 7 V
C19 - Ground
(RL)Audio sounding5 - 7 V
C20 - Ground
(GND)ConstantContinuity
If the circuit is not as specified, inspect the circuits connected
to other parts.
3. INSPECT GLASS IMPRINTED ANTENNA
Use same procedure as for ºINSPECT DEFOGGER WIRESº
on page BE-67.
4. REPAIR GLASS IMPRINTED ANTENNA
Use same procedure as for ºREPAIR DEFOGGER WIRESº on
page BE-67.
Page 155 of 1897
BE0AZ-07
I12536
Radio Receiver Assembly
Driver Side Junction Block
RADIO Fuse
Front SpeakerRear Speaker
Glass Printed Antenna
Twetter
Sub Woofer
(Premium System Only) Power Amplifier
(Premium System Only)
BE-160
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1764 Author: Date:
2001 AVALON (RM808U)
LOCATION
Page 156 of 1897
BE215-01
I12856
ºTUNE DOWNº Switch
º1chº Switchº2chº Switch º3chº Switchº4chº Switch
º5chº Switchº6chº Switch ºDISCº Switch
ºTUNE UPº Switch
- BODY ELECTRICALAUDIO SYSTEM
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TROUBLESHOOTING
1. Europe models:
DIAGNOSIS FUNCTION
(a) Diagnosis start-up
For shifting diagnosis mode, turn ignition switch ON and push the ºDISCº switch 3 times while pressing
ºch1º and ºch6º switches.
HINT:
To exist from the diagnosis mode, push the ºDISCº switch for 1.7 sec. or turn ignition switch to ACC or OFF.
(b) Service check mode
(1) After the diagnosis start-up, the system enters service check mode.
(2) Error codes over tuner and connected equipment are displayed on the screen of tuner.
Results for each check are displayed as follows:
good:
No DTC is detected for both ºSystem Check Confirmationº and ºDiagnosis Memory Re-
sponseº.
nCon:
The Component does not respond to the ºDiagnosis On Instructionº command.
Applicable to only the system where connected components are limited to be used.
ECHn:
Application of new version has been confirmed by the ºDiagnosis On Checkº, and there
is one or more DTC which indicates ºReplacementº in the ºSystem Check Result Re-
sponseº or ºDiagnosis Memory Responseº.
CHEC:
Application of new version has been confirmed by the ºDiagnosis On Checkº, and there
is no DTC which indicates ºReplacementº in the ºSystem Check Result Responseº or
ºDiagnosis Memory Responseº, but one or more DTC which indicated ºCheckº is identified.
Page 157 of 1897
BE-128
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1732 Author: Date:
2001 AVALON (RM808U)
Old:
Application of old version is confirmed by the ºDiagnosis On Checkº, and DTC is identified
in the ºSystem Check Result Responseº or ºDiagnosis Memory Responseº.
nrES:
No response is identified to the ºSystem Check Start Instructionº and ºRequest for System
Check Resultº commands.
HINT:
Check the present and past condition of components by performing the System Check and collecting
stored DTC memories.
Check results shall be displayed as one of six following indications: ºgoodº, ºECHnº, ºCHECº,ºnConº,
ºOldº or ºnrESº.
Page 158 of 1897
Normal Mode
Service Check Mode
A long beep (3 sec.) 3 beeps
Memory Clear ModeAfter 3 sec.
P240
ECHn
CLr Example:
Connection parts ( physical address): Radio receiver (P190), CD Auto Changer (P240), MD chnger (P3A0)
Turn ignition switch ON.
Push the ºDISCº switch 3 times
while pressing ºch1º and ºch6º
swithes.
HINT:
To exit from diagnosis mode,
press the ºDISCº switch for 1.7
sec. or turn ignition switch to
OFF
ºECHnº Detail
Display Mode
(Refer to (f))
CHEC
ºCHECº Detail
Display Mode
(Refer to (g))
Physical AddressP190
Physical AddressP3A0
Old
ºOldº Detail
Display Mode
(Refer to (h))
Result (Replaceing)
Result (Check)
Result (Old)
After the memory is cleared, only the physical address is displayed cyclically.TUNE UP
TUNE UP
TUNE UP
TUNE UP TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE UP
ch5 (1.7 sec.)
: Indicates a switch operation
ch2
ch3
ch2
ch3
ch2
ch3
When re-checking (ch1 switch is pressed) in that condition, the result is also
displayed as shown above.
- BODY ELECTRICALAUDIO SYSTEM
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(c) Display Screen for Service Check.
Page 159 of 1897
Service Check Mode
ºECHnº Detail Display Mode
Physical Address of Component
Logical Address
Number of Occurrence (*2)
DTC (Refer to diagnostic
trouble code chart)
Logical Address
Connection Check Code (*2)
Continued if more than one DTC is identified.Details for 1st
Component
Details for 2nd
Component ECHn
P240
ch2ch3
TUNE UPTUNE DOWN
P240
SyS
COdE
DTC (Refer to diagnostic
trouble code chart)
Auxiliary Code (*1)
ch5 (Along)
CLr
: Indicates a switch operationTUNE UP
TUNE UP
TUNE UP
TUNE UP
TUNE UP
TUNE UP
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE UPTUNE DOWN
TUNE UP
Detail code is displayed
cyclically.TUNE UP
TUNE UP
TUNE UP
TUNE UP
(*1): There are some
diagnostic codes witch might
not be displayed.
In this case, º- - -º displayed.
(*2): There are some
diagnostic codes witch
might not be displayed.
In this case, º- -º displayed.1L
**
1d45
2L**
2dE4
2P***
2n**
2c**
BE-130
- BODY ELECTRICALAUDIO SYSTEM
1734 Author: Date:
2001 AVALON (RM808U)
(d) ºECHnº Detail Display Mode Screen
Page 160 of 1897
Service Check Mode
ºCHECº Detail Display Mode
Physical Address of Component
Logical Address
Number of Occurrence (*2)
DTC (Refer to diagnostic
trouble code chart)
Continued if more than one DTC is identified.Details for 1st
Component
Details for 2nd
Component CHEC
P190
ch2ch3
TUNE UPTUNE DOWN
P190
COde
DTC (Refer to diagnostic
trouble code chart)
ch5 (Along)
CLr
: Indicates a switch operationAuxiliary Code (*1)
Connection Check Code (*2)
Logical Address
Connection Check Code (*2)
TUNE UP
TUNE DOWN
Detail code is displayed
cyclically.
Auxiliary Code (*1)
Number of Occurrence (*2)
TUNE UP
TUNE UP
TUNE UP
TUNE UP
TUNE UP
TUNE UP
TUNE UP
TUNE UP
TUNE UP
TUNE UP
TUNE UP
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE DOWN
TUNE UPTUNE DOWN
TUNE UP
(*1): There are some
diagnostic codes witch might
not be displayed.
In this case, º- - -º displayed.
(*2): There are some
diagnostic codes witch
might not be displayed.
In this case, º- -º displayed.1L
**
1dE4
2L**
2d43
2P***
2n**
1P***
1n**
2c**
1c**
- BODY ELECTRICALAUDIO SYSTEM
BE-131
1735 Author: Date:
2001 AVALON (RM808U)
(e) ºCHECº Detail Display Mode Screen