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05-1 198
DIAGNOSTICS - AUDIO SYSTEM
055LJ-21
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:
S *1: Even if no failure is detected, trouble code may be stored depending on the battery condition or
voltage for starting the engine.
S *2: It is stored when 180 seconds have passed after the power supply connector is pulled out after the
engine starts.
S *3: It may be stored when the engine key is turned 1 minute after the engine starts.
S *4: It may be stored when the engine key is turned again after the engine starts.
S *5: When 210 seconds have passed after pulling out the power supply connector of the master compo-
nent with the ignition switch in ACC or ON, this code is stored.
(a) Logical address: 01 (Communication control)
DTC Diagnosis item Diagnosis content Countermeasure and inspected parts
21 ROM Error Abnormal condition of ROM is detected. Replace radio receiver assy.
22 RAM Error Abnormal condition of RAM is detected. Replace radio receiver assy.
Absence of Master S Check harness for power supply system of
D6 Component in which this code is recorded
radio receiver assy.
*1 was disconnected from system or master
S Check harness for communication system
component with ignition in ACC or ON.
of radio receiver assy.
Connection check Error S Check harness for power supply of radio
Component in which this code is recorded
D7 receiver assy.
was disconnected from system or master
*5 S Check harness for communication system
component ignition with in ACC or ON.
of radio receiver assy.
No Response to Connection Check Component shown by sub code is or was S Check harness for power supply system of
D8 disconnected from system after engine component shown by sub code.
*2 start. S Check harness for communication system
of component shown by sub code.
Last Mode Error Audio or visual component operated before S Check harness for power supply system of
D9 engine stop is or was disconnected with component shown by sub code.
*1 ignition switch in ACC or ON. S Check harness for communication system
of component shown by sub code.
No Response to ON/OFF Instruction No response is identified when changing S 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 S Check harness for communication system
DA
change by button operation. of component shown by sub code.
S If error occurs again, replace component
shown by sub code.
Mode Status Error Dual alarm is detected.
S Check harness for power supply system of
DB component shown by sub code.
*1 S Check harness for communication system
of component shown by sub code.
If same sub code is recorded in other com-
Transmission to component shown by auxil-
Transmission Error ponent, check harness for power supply and
DC iary code has been failed.
communication system of all components
*3 (Detecting this DTC does not necessarily
shown by code.
mean actual failure.)
(If not, delete DTC and recheck.)
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1381
05-1 199
DIAGNOSTICS - AUDIO SYSTEM
DTC Diagnosis item Diagnosis content Countermeasure and inspected parts
DD Master Reset (Momentary Interruption) After the engine was started, master compo- S Check harness for power supply system of
*4 nent was disconnected from system. radio receiver assy.
S Check harness for communication system
of radio receiver assy.
S If this error occurs frequently, replace radio
receiver assy.
DE Slave Reset (Momentary Interruption) After the engine was started, component S Check harness for power supply of compo-
*4 shown by sub code was disconnected from nent shown by sub code.
system. S Check harness for communication system
of component shown by sub code.
DF Due to defective condition of component S Check harness for power supply of radio
Master Error
with a display, master function is switched to receiver assy.
*5
audio equipment. S Check harness for communication system
Error occurs in communication between of radio receiver assy.
sub-master (audio) and master component.
E0 Registration Completion Instruction Error "Registration Completion Instruction" 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 Error occurs in ON/OFF controlling com- Replace radio receiver assy
ON/OFF Instruction Parameter Error
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 Instruction, failure exists.
Registration Request command is output
from sub-master component.
E4 Multiple Frame Abort Multiple frame transmission is aborted. Since this DTC is provided for engineering
*1 purpose, it may be detected when no actual
failure exists.
(b) Logical address: 21 (Switch)
DTC Diagnosis item Condition Countermeasure and inspected parts
10 Panel Switch Error Error in panel switch input part is detected. S Inspect all switches on panel switch test
(Error in switch control part, or internal com- screen in display check mode. If any of
munication error with switch control part is them does not function, replace radio re-
detected.) ceiver assy.
S If all switches function without problem, ob-
serve them for a while.
11 Touch Switch Error Error in touch switch sensor is detected. S Inspect all touch switches on touch switch
(Light level of LED is detected to be less test screen in display check mode. If any
than a fixed value.) of lines does not react, replace radio re-
ceiver assy.
S If all of vertical and horizontal lines react
normally, observe them for a while.
(c) Logical address: 61 (Cassette switch)
DTC Diagnosis item Diagnosis content Countermeasure and inspected parts
40 Mechanical Error of Media Malfunction due to mechanical failure is S Inspect cassette tape.
identified. S 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.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1382
05-1200
DIAGNOSTICS - AUDIO SYSTEM
(d) Logical address: 62 (CD player)
DTC Diagnosis item Diagnosis content Countermeasure and inspected parts
42 No Disc Readout Disc cannot be read. S Inspect CD.
S 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.
47 Detection of high temperature - -
48 Detection of eddy current - -
(e) Logical address: 63 (In-dush CD changer)
DTC Diagnosis item Diagnosis content Countermeasure and inspected parts
42 No Disc Readout Disc cannot be read. S Inspect CD.
S 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.
47 Detection of high temperature - -
48 Detection of eddy current - -
2. STEREO COMPONENT AMPLIFIER ASSY (Physical address: 440)
HINT:
S *1: Even if no failure is detected, this code may be stored depending on the battery condition or voltage
for starting the engine.
S *2: This code may be stored when the engine key is turned again 1 min. after the engine starts.
S *3: This code may be stored when the engine key is turned again after the engine starts.
S *4: When 210 seconds have passed after pulling out the power supply connector of the master compo-
nent with the ignition switch in ACC or ON, this code is stored.
Logical address: 01 (Communication control)
DTC Diagnosis item Diagnosis content Countermeasure and inspected parts
D6 Absence of Master Component in which this code is recorded S Check harness for power supply of radio
*1 was disconnected from system with ignition receiver assy.
in ACC or ON. Or, when this code was re- S Check harness for communication system
corded, radio receiver assy was discon- of radio receiver assy.
nected. S Check harness for power supply of stereo
component amplifier assy.
S Check harness for communication system
of stereo component amplifier assy.
D7 Communication Check Error Component in which this code is recorded is S Check harness for power supply of radio
*4 or was disconnected from system after en- receiver assy.
gine start. Or, when this code was recorded, S Check harness for communication system
radio receiver assy was disconnected. of radio receiver assy.
S Check harness for power supply of stereo
component amplifier assy.
S Check harness for communication system
of stereo component amplifier assy.
DC Transmission Error Transmission to component shown by auxil- If same auxiliary code is recorded in other
*2 iary code failed. components, check harness for power sup-
(Detecting this DTC does not necessarily ply and communication system of all compo-
mean actual failure.) nents shown by code.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1383
05-1201
DIAGNOSTICS - AUDIO SYSTEM
DTC Diagnosis item Diagnosis content Countermeasure and inspected parts
DD Master Reset (Momentary Interruption) After engine was started, radio receiver S Check harness for power supply of radio
*3 assy was disconnected from system. receiver assy.
S Check harness for communication system
of radio receiver assy.
S Check harness for power supply of stereo
component amplifier assy.
S Check harness for communication system
of stereo component amplifier assy.
S If this error occurs frequently, replace radio
receiver assy.
DF Master Error Due to defective condition of component S Check harness for power supply of radio
*4 with a display, master function is switched to receiver assy.
audio equipment. S Check harness for communication system
Error occurs in communication between of radio receiver assy.
sub-master (audio) and master component. S Check harness for communication system
between radio receiver assy and sub-mas-
ter component.
E0 Registration Completion Instruction Error "Registration Completion Instruction" 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.
E1 Audio processor ON error While source equipment is operating, AMP S Check harness for power supply of radio
*1 output is stopped. receiver assy.
S Check harness for communication system
of radio receiver assy.
E2 ON/OFF Instruction Parameter Error Error occurs in ON/OFF controlling com- Replace radio receiver assy.
mand from radio receiver assy.
E3 Registration Request Transmission S Registration Request command is output Since this DTC is provided for engineering
*1 from slave component. purpose, it may be detected when no actual
S Registration Connection Check Instruction, failure exists.
Registration Request command are output
from sub-master component.
3. MULTI-DISPLA Y CONTROLLER SUB-ASSY (Physical address: 1F6, 16C)
HINT:
S *1: Even if no failure is detected, this code may be stored depending on the battery condition or voltage
for starting the engine.
S *2: This code may be stored when the engine key is turned again 1 min. after the engine starts.
S *3: This code may be stored when the engine key is turned again after the engine starts.
S *4: When 210 seconds have passed after pulling out the power supply connector of the master compo-
nent with the ignition switch in ACC or ON, this code is stored.
(a) Main (1F6)
Logical address: 01 (Communication control)
DTC Diagnosis item Condition Countermeasure and inspected parts
21 ROM Error Abnormal condition of ROM is detected. Replace multi-display controller sub-assy.
22 RAM Error Abnormal condition of RAM is detected. Replace multi-display controller sub-assy.
D1 Registered component disconnected Component shown by sub-code is or was S Check harness for power supply of compo-
*1 AVC-LAN transmitting abnormalities disconnected from system with ignition nent shown by sub-code.
switch in ACC or ON. S Check harness for communication system
Communication with component shown by of component shown by sub-code.
sub-code is not ensured when engine is
started.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1384
05-1202
DIAGNOSTICS - AUDIO SYSTEM
DTC Diagnosis item Condition Countermeasure and inspected parts
D7 No response to connection check Component shown by sub-code is or was S Check harness for power supply of compo-
*4 disconnected from system after engine nent shown by sub-code.
started. S Check harness for communication system
of component shown by sub-code.
D7 AVC-LAN Communication Check Error Component in which this code is recorded is
S Check harness for power supply of radio
*4 or was disconnected from system after en-
receiver assy.
gine start. Or, when recording this code,
S Check harness for communication system
multi-display controller sub-assy was dis-
of radio receiver assy.
connected.
S Check harness for power supply of multi-
display controller sub-assy.
S Check harness for communication system
of multi-display controller sub-assy.
Absence of Master Component in which this code is recorded S Check harness for power supply system of
D6
was disconnected from system with ignition radio receiver assy.
*1
in ACC or ON. Or, when this code was re- S Check harness for communication system
corded, multi-display controller sub-assy of radio receiver assy.
was disconnected. S Check harness for communication system
between radio receiver assy and multi-dis-
play controller sub-assy.
D7 Connection Check Error Component in which this code is recorded S Check harness for power supply system of
*4 was disconnected from system after engine radio receiver assy.
start. Or, when this code was recorded, mul- S Check harness for communication system
ti-display controller sub-assy was discon- of radio receiver assy.
nected. S Check harness for power supply of multi-
display controller sub-assy.
S Check harness for communication system
of multi-display controller sub-assy.
DC Transmission Error Transmission to component shown by sub- If same sub-code is recorded in other com-
*2 code failed. ponent(s), check harness for power supply
(This code does not necessarily mean actu- and communication system of all compo-
al failure.) nents shown by code.
DD Master Reset (Momentary Interruption) Component that is to be master was discon- S Check harness for power supply system of
*3 nected after engine start. radio receiver assy.
S Check harness for communication system
of radio receiver assy.
S Check harness for power supply of multi-
display controller sub-assy.
S Check harness for communication system
of multi-display controller sub-assy.
S If error occurs frequently, replace radio re-
ceiver assy.
DF Master Error Due to defective condition of component S Check harness for power supply of radio
*4 with a display, master function is switched to receiver assy.
audio equipment. S Check harness for communication system
Error occurs in communication between of radio receiver assy.
sub-master (audio) and master component. S Check harness for communication system
between multi-display controller sub-assy
and radio receiver assy.
E0 Registration Completion Instruction Error "Registration Completion Instruction" com- Since this DTC is provided for engineering,
*1 mand from master cannot be received. it may be detected when no actual failure
exists.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1385
05-1203
DIAGNOSTICS - AUDIO SYSTEM
DTC Diagnosis item Condition Countermeasure and inspected parts
E3 Registration Request Transmission S Registration Request command is output Since this DTC is provided for engineering,
*1 from slave component. it may be detected when no actual failure
S Registration Request command is output exists.
from sub-master component.
E4 Multiple Frame Abort Multiple frame transmission is aborted. Since this DTC is provided for engineering
*1 purpose, it may be detected when no actual
failure exists.
(b) Sub (16C)-AVC-LAN L-1
Logical address: 01 (Communication control)
DTC Diagnosis item Condition Countermeasure and inspected parts
D8 No Response To Connection Check S Check harness for power supply system of
Component shown by sub-code is or was
*2 component shown by sub-code.
disconnected from system after engine start.
S Check harness for communication system
of component shown by sub-code.
D9 Last Mode Error Component operated (sound and/or image S Check harness for power supply of compo-
*1 was provided) before engine stop is or was nent shown by sub-code.
disconnected with ignition switch in ACC or S Check harness for communication system
ON. of component shown by sub-code.
DA No Response to ON/OFF Instruction No response is identified when changing S Check harness for power supply system of
mode (audio and visual mode change). component shown by sub-code.
Sound and picture does not change by but- S Check harness for communication system
ton operation of component shown by sub-code.
S If error occurs again, replace component
shown by auxiliary code
DB Mode Status Error Dual alarm is detected. S Check harness for power supply system of
*1 component shown by sub-code.
S Check harness for communication system
of component shown by sub-code.
DC Transmission Error Transmission to component shown by sub- If same sub-code is recorded in other com-
*2 code failed. ponent(s), check harness for power supply
(This code does not necessarily mean actu- and communication system of all compo-
al failure.) nents shown by code.
DE Slave Reset (Momentary Interruption) After engine start, slave component was dis- S Check harness for power supply system of
*3 connected. component shown by sub-code.
S Check harness for communication system
of component shown by sub-code.
E4 Multiple Frame Abort Since this DTC is provided for engineering
Multiple frame transmission is aborted.
*1 purpose, it may be detected when no actual
failure exists.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1386
05-1204
DIAGNOSTICS - AUDIO SYSTEM
4. STEREO COMPONENT CONTROLLER ASSY (Physical address: 1F4)
HINT:
S *1: Even if no failure is detected, this code may be stored depending on the battery condition or voltage
for starting the engine.
S *2: When 210 seconds have passed after pulling out the power supply connector of the master compo-
nent with the ignition switch in ACC or ON, this code is stored.
S *3: This code may be stored when the engine key is turned again 1 minute after the engine starts.
S *4: This code may be stored when the engine key is turned again after the engine starts.
(a) Logical address: 01 (Communication control)
DTC Diagnosis item Condition Countermeasure and inspected parts
D6 Absence of Master Component in which this code is recorded S Check harness for power supply system of
*1 was disconnected from system with ignition radio receiver assy.
in ACC or ON. Or, when this code was re- S Check harness for communication system
corded, radio receiver assy was discon- of radio receiver assy.
nected. S Check harness for communication system
between radio receiver assy and stereo
component controller assy.
D7 Connection Check Error
Component in which this code is recorded S Check harness for power supply system of
*2
was disconnected from system after engine radio receiver assy.
start. Or, when this code was recorded, ra- S Check harness for communication system
dio receiver assy was disconnected. of radio receiver assy.
DC Transmission Error Transmission to component shown by sub- If same sub-code is recorded in other com-
*3 code failed. ponent(s), check harness for power supply
(This code does not necessarily mean actu- and communication system of all compo-
al failure.) nents shown by code.
DD Master Reset (Momentary Interruption) Component that is to be master was discon- S Check harness for power supply system of
*4 nected after engine start. radio receiver assy.
S Check harness for communication system
of radio receiver assy.
S If error occurs frequently, replace stereo
component controller assy.
E0 Registration Completion Instruction Error "Registration Completion Instruction" com- Since this DTC is provided for engineering,
*1 mand from master cannot be received. it may be detected when no actual failure
exists.
E3 Registration Request Transmission S Registration Request command is output Since this DTC is provided for engineering,
*1 from slave component. it may be detected when no actual failure
S Registration Request command is output exists.
from sub-master component.
DF Master Error Due to defective condition of component S Check harness for power supply of radio
*2 with a display, master function is switched to receiver assy.
audio equipment. S Check harness for communication system
Error occurs in communication between of radio receiver assy.
sub-master (audio) and master component. S Check harness for communication system
between stereo component controller assy
and radio receiver assy.
E4 Multiple Frame Abort Multiple frame transmission is aborted. Since this DTC is provided for engineering
*1 purpose, it may be detected when no actual
failure exists.
D8 No Response To Connection Check S Check harness for power supply system of
Component shown by sub-code is or was
*2 component shown by sub-code.
disconnected from system after engine start.
S Check harness for communication system
of component shown by sub-code.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1387
05-1205
DIAGNOSTICS - AUDIO SYSTEM
DTC Diagnosis item Condition Countermeasure and inspected parts
D9 Last Mode Error Component operated (sound and/or image S Check harness for power supply of compo-
*1 was provided) before engine stop is or was nent shown by sub-code.
disconnected with ignition switch in ACC or S Check harness for communication system
ON. of component shown by sub-code.
DA No Response to ON/OFF Instruction No response is identified when changing S Check harness for power supply system of
mode (audio and visual mode change). component shown by sub-code.
Sound and picture does not change by but- S Check harness for communication system
ton operation of component shown by sub-code.
S If error occurs again, replace component
shown by auxiliary code
DB Mode Status Error Dual alarm is detected. S Check harness for power supply system of
*1 component shown by sub-code.
S Check harness for communication system
of component shown by sub-code.
DC Transmission Error Transmission to component shown by sub- If same sub-code is recorded in other com-
*3 code failed. ponent(s), check harness for power supply
(This code does not necessarily mean actu- and communication system of all compo-
al failure.) nents shown by code.
DE Slave Reset (Momentary Interruption) After engine start, slave component was dis- S Check harness for power supply system of
*4 connected. component shown by sub-code.
S Check harness for communication system
of component shown by sub-code.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1388
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