TOYOTA SEQUOIA 2001 Service Repair Manual

DIDC6±01
I28208Logical AddressDiagnostic Code
I28209
Logical AddressDiagnostic Code
± DIAGNOSTICSNAVIGATION SYSTEM
DI±2199
2393 Author: Date:
2005 SEQUOIA (RM1146U)
CHECK MODE PROCEDURE
1. SYSTEM CHECK MODE (DTC CHECK)
HINT:
Illustrations may differ from the actual vehicle depending on the device settings and options. Therefore,
some detailed areas may not be shown exactly the same as on the actual vehicle.
(a) Start the diagnostic mode (See page DI±2191).
(b) Read the system check result.
If all check results are ºEXCH,º ºCHEKº or ºOld,º touch the dis-
play to check the contents on the ºUnit Check Modeº screen and
record them on the customer problem analysis check sheet.
HINT:

If all check results are ºOK,º go to communication DTC
check (go to step c).

If a device name is not known, its physical address is dis-
played.
HINT:
If ºEXCHº, ºCHEKº and ºOldº as well as ºOKº exist, press the
service switch to return to the ºSystem Check Modeº. Then,
check the ºUnit Check Modeº screen and record them on the
customer problem analysis check sheet.

I28210
I28211
Sub±Code Diagnostic Code
Logical Address
DI±2200
± DIAGNOSTICSNAVIGATION SYSTEM
2394 Author: Date:
2005 SEQUOIA (RM1146U)
(c) Read the communication diagnostic check result.
(1) Return to the ºSystem Check Modeº, and press
ºLAN Monº switch to enter the LAN monitor screen.
(d) If the result is ºCHEKº or ºOld,º touch the result switch to
check the contents on the individual communication diag-
nostic screen and record them on the customer problem
analysis check sheet.
HINT:

If all check results are ºNo Err,º the system determines
that no DTC exists.

The sub±code (relevant device) will be indicated by its
physical address.

I28212
I28213
I28214
± DIAGNOSTICSNAVIGATION SYSTEM
DI±2201
2395 Author: Date:
2005 SEQUOIA (RM1146U)
HINT:
If check results of other devices are ºCHEK,º press the ºServiceº
switch to return to the original ºLAN Monitorº screen. Then,
check the individual communication diagnostic screen for the
next device and record the result on the customer problem anal-
ysis check sheet.
2. SYSTEM CHECK MODE (DTC CLEAR/RECHECK)
HINT:
Illustrations may differ from the actual vehicle depending on the device settings and options. Therefore,
some detailed areas may not be shown exactly the same as on the actual vehicle.
(a) Enter diagnostic mode (See page DI±2191).
(b) Clear DTC
(1) Press the ºCode CLRº switch for 3 seconds.
(2) Check result is cleared.
(c) Recheck
(1) Press the ºRecheckº switch.

I28215
I28216
I28217
DI±2202
± DIAGNOSTICSNAVIGATION SYSTEM
2396 Author: Date:
2005 SEQUOIA (RM1146U)
(2) Confirm that all diagnostic codes are ºOKº when the
check results are displayed.
If a code other than ºOKº is displayed, troubleshoot again.
(3) Press the ºLAN Monº switch to change to ºLAN
Monitorº mode.
(4) Confirm that all diagnostic codes are ºNo Errº.
If a code other than ºNo Errº is displayed, troubleshoot again.

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
±
±
±

DI±2204
± DIAGNOSTICSNAVIGATION SYSTEM
2398 Author: Date:
2005 SEQUOIA (RM1146U) D9
*1
*5
Last mode error
The device (for audio visual system) that had
functioned before the engine stopped is (was)
disconnected from the system when the ignition
switch is (was) in the ACC or ON position.
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±2205
2399 Author: Date:
2005 SEQUOIA (RM1146U) DA
*5
No response against ON/OFF
command
No response is identified when changing mode
(audio and visual mode change). Detected when
sound and image do not change by switch opera-
tion.
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
±
±
±
DB
*1
*5
Mode status errorThis code detects a dual alarm.
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
±
±
±

DI±2206
± DIAGNOSTICSNAVIGATION SYSTEM
2400 Author: Date:
2005 SEQUOIA (RM1146U) DC
*3
*5
Failure in transmission
This code indicates a transmission failure to the
device indicated by the sub code.
NOTE: This DTC may have no direct relationship
with the malfunction.
1. Power source circuit (Rear seat
audio controller). *6
2. Power source circuit (Multi±dis-
play controller sub±assy). *7
3. AVC±LAN circuit (Radio and
navigation assy ± Stereo compo-
nent amplifier assy).
4. AVC±LAN (Radio and navigation
assy ± Rear seat audio control-
ler). *6
5. AVC±LAN (Radio and navigation
assy ± Multi±display controller
sub±assy). *7
6. Replace stereo component am-
plifier assy.
7. Replace rear seat audio control-
ler. *6
8. Replace multi±display controller
sub±assy. *7DI±2058
DI±2110
DI±2268
DI±2061
DI±2139
±
±
±
DE
*4
*5
Slave resetThis code is stored when a slave device has been
disconnected 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
±
±
±
21ROM errorThis code is output when a malfunction exists in
ROM.Replace radio and navigation assy.±
22RAM errorThis code is output when a malfunction exists in
RAM.Replace radio and navigation assy.±
HINT:

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

*2: If the power connector is disconnected after the engine starts, this code is recorded after 180 se-
conds.

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

*4: 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.

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

*6: w/ Rear seat audio system only.

± 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
±