2001 TOYOTA SEQUOIA Page 18

DIDC7±01
± DIAGNOSTICSNAVIGATION SYSTEM
DI±2203
2397 Author: Date:
2005 SEQUOIA (RM1146U)
DIAGNOSTIC TROUBLE CODE CHART
TermsDescription
Physical address
3±digit, hexadecimal code assigned to all components connected to the AVC±LAN.
Individual symbols are specified based on function. Units whose names are un-
known or relevant units are displayed with physical addresses.
Logical address2±digit, hexadecimal code assigned to all the functions in the AVC±LAN system.
HINT:
Titles for each unit are stated in the following order: parts name (physical address) [Name indicated by DTC]
1. Radio and navigation assy (physical address: 140) [AVN]
(a) Logical address: 01 (Communication control)
HINT:
Methods used to verify the cause of the problem are listed in order of probability in the verification column.
DTCNameDiagnosisVerificationSee page
D5
*1
*5Absence of registration unit
A device that the sub code shows is (was) dis-
connected from the system when turning the igni-
tion switch to the ACC or ON position.
The communication condition with the device that
the code shows cannot be obtained when the en-
gine starts.
1. Power source circuit (Stereo
component amplifier assy).
2. Power source circuit (Rear seat
audio controller). *6
3. Power source circuit (Multi±dis-
play controller sub±assy). *7
4. AVC±LAN circuit (Radio and
navigation assy ± Stereo compo-
nent amplifier assy).
5. AVC±LAN (Radio and navigation
assy ± Rear seat audio control-
ler). *6
6. AVC±LAN (Radio and navigation
assy ± Multi±display controller
sub±assy). *7
7. Replace stereo component am-
plifier assy.
8. Replace rear seat audio control-
ler. *6
9. Replace multi±display controller
sub±assy. *7DI±2258
DI±2058
DI±2110
DI±2268
DI±2061
DI±2139
±
±
±
D8
*2
*5No response to connection
checkThe device indicated by the sub code is (was)
disconnected from the system after engine start.
1. Power source circuit (Stereo
component amplifier assy).
2. Power source circuit (Rear seat
audio controller). *6
3. Power source circuit (Multi±dis-
play controller sub±assy). *7
4. AVC±LAN circuit (Radio and
navigation assy ± Stereo compo-
nent amplifier assy).
5. AVC±LAN (Radio and navigation
assy ± Rear seat audio control-
ler). *6
6. AVC±LAN (Radio and navigation
assy ± Multi±display controller
sub±assy). *7
7. Replace stereo component am-
plifier assy.
8. Replace rear seat audio control-
ler. *6
9. Replace multi±display controller
sub±assy. *7DI±2258
DI±2058
DI±2110
DI±2268
DI±2061
DI±2139
±
±
±

± DIAGNOSTICSNAVIGATION SYSTEM
DI±2207
2401 Author: Date:
2005 SEQUOIA (RM1146U)

*7: w/ Rear seat entertainment system only.
(b) Logical address: 58 (Navigation): 80 (GPS)
HINT:
Methods used to verify the cause of the problem are listed in order of probability in the verification column.
DTCNameDiagnosisVerificationSee page
43SPD signal errorThe difference between the GPS speed and SPD
pulse is detected.
1. Inspect speed signal error.
2. Speed signal circuit.
3. Replace radio and navigation
assy.±
DI±2291
±
44Player errorMap player error is detected.
1. Check if the disc can be inserted
and ejected. If a malfunction is
found, replace the radio and nav-
igation assy.
2. If the same code is detected
again, replace the radio and nav-
igation assy.±
±
45High temperatureHigh map player temperature is detected.
1. Park the vehicle in a cool place.
Turn the engine off. After check-
ing that the temperature of the
radio and navigation assy be-
comes sufficiently low, turn the
engine on to verify the malfunc-
tion symptom.
2. If the same code is detected
again, replace the radio and nav-
igation assy.±
±
(c) Logical address: 21 (SW): 23 (SW with name): 24 (SW converting): 25 (command SW)
HINT:
Methods used to verify the cause of the problem are listed in order of probability in the verification column.
DTCNameDiagnosisVerificationSee page
10Panel switch errorThe panel SW detection circuit has a failure.Replace radio and navigation assy.±

DI±2208
± DIAGNOSTICSNAVIGATION SYSTEM
2402 Author: Date:
2005 SEQUOIA (RM1146U)
2. Stereo component amplifier assy (Physical address: 440) [DSP AMP]
(a) Logical address: 01 (Communication control)
HINT:
Methods used to verify the cause of the problem are listed in order of probability in the verification column.
DTCNameDiagnosisVerificationSee page
D7
*2Connection check error
When either of the following conditions is met.

The device that stored this code has (had) been
disconnected after the engine starts (started).

The master device has (had) been disconnected
when this code is (was) stored.
1. Power source circuit (radio and
navigation assy).
2. AVC±LAN circuit (Radio and
navigation assy ± Stereo compo-
nent amplifier assy).
3. AVC±LAN (Radio and navigation
assy ± Rear seat audio control-
ler). *5
4. AVC±LAN (Radio and navigation
assy ± Multi±display controller
sub±assy). *6
5. Power source circuit (stereo
component amplifier assy).
6. Replace radio and navigation
assy.
7. Replace stereo component am-
plifier assy.DI±2256
DI±2268
DI±2061
DI±2139
DI±2258
±
±
DC
*3
*4
Transmission error
The device stores the fact that transmission to the
device indicated by the sub code has failed.
NOTE: This DTC may not be directly related to
the problem.
1. Power source circuit (radio and
navigation assy).
2. AVC±LAN circuit (Radio and
navigation assy ± Stereo compo-
nent amplifier assy).
3. AVC±LAN (Radio and navigation
assy ± Rear seat audio control-
ler). *5
4. AVC±LAN (Radio and navigation
assy ± Multi±display controller
sub±assy). *6
5. Power source circuit (stereo
component amplifier assy).
6. Replace radio and navigation
assy.
7. Replace stereo component am-
plifier assy.DI±2256
DI±2268
DI±2061
DI±2139
DI±2258
±
±
E0
*1Registration complete indication
error
When ºRegistration completeº command from the
master device cannot be received.
NOTE: This DTC may not be directly related to
the problem.
±±
E1
*1Voice processing device ON er-
rorWhen the AMP device records that the AMP out-
put does not function even while the source de-
vice operates.
1. Power source circuit (radio and
navigation assy).
2. AVC±LAN circuit (Radio and
navigation assy ± Stereo compo-
nent amplifier assy).
3. AVC±LAN (Radio and navigation
assy ± Rear seat audio control-
ler). *5
4. AVC±LAN (Radio and navigation
assy ± Multi±display controller
sub±assy). *6
5. Replace radio and navigation
assy.DI±2256
DI±2268
DI±2061
DI±2139
±

± DIAGNOSTICSNAVIGATION SYSTEM
DI±2209
2403 Author: Date:
2005 SEQUOIA (RM1146U)E2
ON/OFF indication parameter
errorWhen the command for ON/OFF control from the
master device has a problem.Replace radio and navigation assy.±
E3
*1Registration demand transmis-
sion
When the registration demand command from the
slave device is output, or when the registration
demand command is output by receiving connec-
tion confirmation command from the sub master
device.
NOTE: This DTC may not be directly related to
the problem.
±±
E4
*1Multiple frame incomplete
When the multiple frame transmission ends in-
complete.
NOTE: This DTC may not be directly related to
the problem.
±±
HINT:

*1: This code may be recorded depending on the battery condition or engine start voltage even if no
failure is detected.

*2: This code may be stored if the ignition key is turned to the START position again with the engine
running.

*3: This code may be stored if the ignition key is held in the START position for 1 minute or more before
returning to the ON position.

*4: If the device is reported as not existing during verification, check the power source circuit and AVC±
LAN circuit for the device.

*5: w/ Rear seat audio system only.

*6: w/ Rear seat entertainment system only.
3. Multi±display controller sub±assy (Physical address: 1F6) [RSE ECU, MAIN]
(a) Logical address: 01 (Communication control)
DTCNameDiagnosisVerificationSee page
21ROM ErrorAbnormal condition of ROM is detected.Replace multi±display controller
sub±assy.±
22ROM ErrorAbnormal condition of RAM is detected.Replace multi±display controller
sub±assy.±
D1
*1
*4Registered component discon-
nected
AVC±LAN transmitting abnor-
malitiesComponent shown by sub±code is or was discon-
nected from system with ignition switch in ACC or
ON.
Communication with component shown by sub±
code is not ensured when engine is started.
1. Power source circuit (Multi±dis-
play controller sub±assy).
2. AVC±LAN (Radio and navigation
assy ± Multi±display controller
sub±assy).
3. Replace Multi±display controller
sub±assy.DI±2110
DI±2139
±
D7
*2AVC±LAN Communication
Check Error
Component in which this code is recorded is or
was disconnected from system after engine start.
Or, when recording this code, multi±display con-
troller was disconnected.
1. Power source circuit (radio and
navigation assy).
2. Power source circuit (Multi±dis-
play controller sub±assy).
3. AVC±LAN (Radio and navigation
assy ± Multi±display controller
sub±assy).
4. Replace Multi±display controller
sub±assy.DI±2256
DI±2110
DI±2139
±
D6
*1Absence of Master
Component in which this code is recorded has
been disconnected from system with ignition in
ACC or ON. Or, when this code was recorded,
multi±display controller was disconnected.
1. Power source circuit (radio and
navigation assy).
2. AVC±LAN (Radio and navigation
assy ± Multi±display controller
sub±assy).
3. Replace Multi±display controller
sub±assy.DI±2256
DI±2139
±

DI±2210
± DIAGNOSTICSNAVIGATION SYSTEM
2404 Author: Date:
2005 SEQUOIA (RM1146U)DC
*1
*3
Transmission Error
Transmission to component shown by sub±code
has been failed.
(This code does not necessarily mean actual fail-
ure.)If same sub±code is recorded in
other component(s), check harness
for power supply and communica-
tion system of all components
shown by code.
±
DD
*4Master Reset (Momentary Inter-
ruption)Component that is to be master has been discon-
nected after engine start.
1. Power source circuit (radio and
navigation assy).
2. AVC±LAN (Radio and navigation
assy ± Multi±display controller
sub±assy).
3. Replace Multi±display controller
sub±assy.DI±2256
DI±2139
±
E0
*1Registration Completion
Instruction ErrorºRegistration Completion Instructionº command
from master cannot be received.Since this DTC is provided for engi-
neering, it may be detected when no
actual failure exists.
±
E3
*1Registration Request Transmis-
sion

Registration Request command is output from
slave component.

Registration Request command is output from
sub±master component.Since this DTC is provided for engi-
neering, it may be detected when no
actual failure exists.
±
DF
*4Master Error
Due to defective condition of component with a
display, master function is switched to audio
equipment.
Error occurs in communication between sub±
master (audio) and master component.
1. Power source circuit (radio and
navigation assy).
2. AVC±LAN (Radio and navigation
assy ± Multi±display controller
sub±assy).
3. Replace Multi±display controller
sub±assy.DI±2256
DI±2139
±
E4
*1Multiple Frame AbortMultiple frame transmission is aborted.
Since this DTC is provided for engi-
neering purpose, it may be detected
when no actual failure exists.
±
HINT:

*1: Even if no failure is detected, this code may be stored depending on the battery condition or voltage
for starting an engine.

*2: This code is stored when 210 sec. has passed after the power supply connector is pulled out after
engine start.

*3: This code may be stored when the engine key is turned back to the ON position and then turned
again to the START position in 1 minute after engine start.

*4: This code may be stored when the engine key is turned back to the ON position and then turned
again to the START position after engine start.
4. Rear seat audio controller (Physical address: 1F4) [RSA]
(a) Logical address: 01 (Communication control)
DTCNameDiagnosisVerificationSee page
D6
*1Absence of Master
Component in which this code is recorded has
been disconnected from system with ignition in
ACC or ON. Or, when this code was recorded,
RSA panel was disconnected.
1. Power source circuit (radio and
navigation assy).
2. AVC±LAN (Radio and navigation
assy ± Rear seat audio control-
ler).
3. Replace Rear seat audio control-
ler.DI±2256
DI±2061
±

DIDC8±01
± DIAGNOSTICSNAVIGATION SYSTEM
DI±2213
2407 Author: Date:
2005 SEQUOIA (RM1146U)
CIRCUIT INSPECTION
Pressing power switch does not turn on system
INSPECTION PROCEDURE
1 Check cabin.
CHECK:
Check that conditions in the cabin are not likely to cause condensation.
HINT:
This problem occurs when the cabin is humid and the temperature rapidly changes. This condition may pro-
duce condensation, resulting in a short circuit.
OK:
Condensation is not likely.
NG Dry cabin and recheck conditions.
OK
Proceed to next circuit inspection shown in problem symptoms table (See page DI±2184).

± DIAGNOSTICSNAVIGATION SYSTEM
DI±2215
2409 Author: Date:
2005 SEQUOIA (RM1146U)
3 Check cabin.
CHECK:
Check if condensation is likely to occur, or the temperature is high or low (extremely cold) in the cabin.
HINT:
This problem occurs when the cabin is humid and the temperature rapidly changes. This condition may pro-
duce condensation, resulting in a short circuit.
OK:
The above conditions are not observed.
NG Set cabin temperature to appropriate degrees
(20 to 30
C) (68 to 86
F).
OK
Proceed to next circuit inspection shown in problem symptoms table (See page DI±2184).

PKB OFF
REV OFFSPEED 49km/h
TAIL OFF
I28975
DI±2216
± DIAGNOSTICSNAVIGATION SYSTEM
2410 Author: Date:
2005 SEQUOIA (RM1146U)
Illumination for panel switch does not come on with tail switch on
INSPECTION PROCEDURE
1 Display check mode (Vehicle signal check mode).
PREPARATION:
Enter the ºDisplay Checkº mode (Vehicle Signal Check Mode)
(See page DI±2176).
CHECK:
Turn the light control switch to the TAIL, HEAD or OFF position.
OK:
Light Control SwitchDisplay
TAIL or HEADON
OFFOFF
HINT:
The display is updated once per second. As a result, it is normal
for the display to lag behind the actual change in the switch.
OK Replace radio and navigation assy.
NG
Proceed to next circuit inspection shown in problem symptoms table (See page DI±2184).
DIDCA±01