Toyota Sequoia (2005). Manual - part 599

DIDC5–01

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Upper Left

Lower Left

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DIAGNOSTICS

NAVIGATION SYSTEM

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2385

DIAGNOSIS SYSTEM

HINT:

Illustrations may differ from the actual vehicle depending on the device settings and options. There-
fore, some detailed areas may not be shown exactly the same as on the actual vehicle.

After the ignition switch is turned on, check that the map is displayed before starting the diagnostic
mode. Otherwise, some items cannot be checked.

1.

There are 2 methods to start diagnostic mode. Start the mode by using one of them.

2.

Method 1

(a)

Start the engine.

(b)

While pressing and holding ”INFO” switch, operate the
light control switch, OFF 

→

 TAIL 

→

 OFF 

→

 TAIL 

→

 OFF

→

 TAIL 

→

 OFF.

(c)

The diagnostic mode starts and the service check screen
(”System Check Mode”) will be displayed. Service inspec-
tion starts automatically and the result will be displayed.

3.

Method 2

(a)

Start the engine.

(b)

Switch to the ”Display quality adjustment” screen.

(c)

From the display quality adjustment screen, touch the
corners of the screen in the following order: upper left 

→

lower left 

→

upper left 

→

 lower left 

→

 upper left 

→

 lower

left.

(d)

The diagnostic mode starts and ”Service Check” screen
will be displayed. Service inspection starts automatically
and the result will be displayed.

4.

Diagnosis MENU

(a)

Diagnostic screen will be displayed by pressing the menu
switch on the service check screen.

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DIAGNOSTICS

NAVIGATION SYSTEM

2386

5.

DIAGNOSIS DISPLAY DETAILED DESCRIPTION

HINT:

This section contains a detailed description of displays within diagnostic mode.

Illustrations may differ from the actual vehicle depending on the device settings and options. There-
fore, some detailed areas may not be shown exactly the same as on the actual vehicle.

(a)

System Checks
(1)

System Check Mode Screen

Device Names and Hardware Address/*1
HINT:

Registered device names are displayed.

If a device name is unknown to the system, its physical address is shown instead.

Address No.

Name

Address No.

Name

110

EMV

120

AVX

128

1DIN TV

140

AVN

144

G–BOOK

178

NAVI

17C

MONET

190

AUDIO H/U

1AC

CAMERA–C

1B0

Rr–TV

1C0

Rr–CONT

1C2

TV–TUNER2

1C4

PANEL

1C6

G/W

1C8

FM–M–LCD

1D8

CONT–SW

1EC

BODY

1F0

RADIO TUNER

1F1

XM

1F2

SIRIUS

230

TV–TUNER

240

CD–CH2

250

DVD–CH

280

CAMERA

360

CD–CH1

3A0

MD–CH

17D

TEL

440

DSP–AMP

530

ETC

5C8

MAYDAY

1A0

DVD–P

1D6

CLOCK

1F4

RSA

1F6

RSE

480

AMP

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DIAGNOSTICS

NAVIGATION SYSTEM

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2387

Check Result/*2
HINT:
Result codes for all devices are displayed.

Result

Meaning

Action

OK

The device did not respond with a DTC (excluding commu-

nication DTCs from the AVC–LAN).

–

EXCH

The device responds with a ”replace”–type DTC.

Look up the DTC in ”Unit Check Mode” and replace the de-

vice.

CHEK

The device responds with a ”check”–type DTC.

Look up the DTC in Unit Check Mode”.

NCON

The device was previously present, but does not respond in

diagnostic mode.

1. Check power supply wire harness of the device.

2. Check the AVC–LAN of the device.

Old

The device responds with an ”old”–type DTC.

Look up the DTC in ”Unit Check Mode”.

NRES

The device responds in diagnostic mode, but gives no DTC

information.

1. Check power supply wire harness of the device.

2. Check the AVC–LAN of the device.

Code Clear/*3
Present DTCs are cleared.
Memory Clear/*4
Present and past DTCs and registered connected device names are cleared.

(1)

Diagnosis MENU Screen

HINT:
Each item is grayed out or not displayed based on the device settings.

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DIAGNOSTICS

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(2)

Unit Check Mode Screen

Screen Description

Display

Contents

Device name/*1

Target device

Segment/*2

Target device logical address

DTC/*3

DTC (Diagnostic Trouble Code)

Timestamp/*4

The time and date of past DTCs are displayed (The year is displayed in 2 digit

format.).

Present Code/*5

The DTC output at the service check is displayed.

Past Code/*6

Diagnostic memory results and recorded DTCs are displayed.

(3)

LAN Monitor (Original) Screen

Check Result/*1
HINT:
Check results of all the devices are displayed.

Result

Meaning

Action

No Err

(OK)

There are no communication DTCs.

–

CHEK

The device responds with a ”check”–type DTC.

Look up the DTC in ”Unit Check Mode”.

NCON

The device was previously present, but does not respond in

diagnostic mode.

1. Check power supply wire harness of the device.

2. Check the AVC–LAN of the device.

Old

The device responded with an old–type DTC.

Look up the DTC in ”Unit Check Mode”.

NRES

Device responds in diagnostic mode, but gives no DTC

information.

1. Check power supply wire harness of the device.

2. Check the AVC–LAN of the device.