Toyota Tundra. Manual — part 140

DTC CHECK / CLEAR

HINT:

If the system cannot enter the diagnostic mode, inspect the AVC-LAN and all the components that connect to
the AVC-LAN for short circuits and repair or replace the problem part (see AVC-LAN CIRCUIT ).

1. STARTING DIAGNOSTIC MODE

a. Turn the ignition switch ACC.

b. Turn off the audio system.

c. While pressing the preset switches "1" and "6" at the same time, press the "DISC" switch 3 times.

HINT:

A beep is emitted 3 times and the diagnostic function is activated. The system enters the all element
illumination mode and the switch check mode.

2. ALL ELEMENT ILLUMINATION MODE AND SWITCH CHECK MODE

HINT:

The illumination status of all switches and operations of the panel switches can be checked.

K17-6 (GND)

Box)

playing

sounds is output

K17-12(WF1-) -

K17-6 (GND)

GR - BR

Sound signal (Woofer
Box)

Audio system is
playing

A waveform
synchronized with
sounds is output

K15-22(II1-) -

K17-6 (GND)

BR - BR

Voice signal

"Bluetooth" handsfree
voice signal is playing

A waveform
synchronized with
sounds is output

K15-23 (II1+) -

K17-6 (GND)

Y - BR

Voice signal

"Bluetooth" handsfree
voice signal is playing

A waveform
synchronized with
sounds is output

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

Fig. 20: Identifying Seek Track And Disc
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

a. Check that all elements are on.

b. When pressing each panel switch, check that a beep is emitted.

Fig. 21: Identifying Seek Track (Example)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3. STEREO JACK ADAPTER CONNECTION CHECK MODE

a. Press the "SEEK TRACK UP" switch.

b. Check if the stereo jack adapter is recognized.

HINT:

Vehicles that do not have a stereo jack adapter also have this function.

NOTE:

Pressing the "SEEK TRACK UP" switch transfers the screen to the
stereo jack adapter connection check screen. Check the operation of
this switch by confirming the transfer of the screen.

NOTE:

This function is not for checking connection information about an

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2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

4. SERVICE CHECK MODE

a. Press the "SEEK TRACK UP" switch.

HINT:

For details of the service check mode, refer to "CHECK DTC" and "DTC CLEAR/RECHECK".

Fig. 22: Identifying Stereo Jack Adapter Connection Check Mode Display
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

5. FINISHING DIAGNOSTIC MODE

a. Press the "DISC" switch for 2 seconds or more, or turn the ignition switch OFF.

6. CHECK DTC

HINT:

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

a. Reference:

In the system check mode, the system check and the diagnostic memory check are performed, and
the check results are displayed in ascending order of the component codes (physical address).

TERMS REFERENCE

external device. It is for checking the recognition condition of the
stereo jack adapter.

Terms

Meaning

Component code

(Physical address)

Three-digit code (in hexadecimal) given to each device comprising AVC-
LAN. Corresponding to its function, individual symbol is provided.

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2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

b. Service check result display

SERVICE CHECK RESULT DISPLAY REFERENCE

c. Device name and physical address

DEVICE NAME AND PHYSICAL ADDRESS REFERENCE

d. Service check mode

1. Press the "SEEK TRACK" switch to see the check result of each component.

Logical address

Two-digit code (in hexadecimal) given to each function of each device
comprising AVC-LAN.

Display

Original

word

Meaning

Action to be taken

good

Good

(normal)

No DTCs are detected in both "System
Check Mode" and "Diagnostic
Memory Mode".

-

nCon

No

connection

The system recognized the component
when it was registered, but the
component gives no response to the
"Diagnostic Mode ON Request".

Check the power source circuit and

the communication circuit of the

component indicated by the

component code (physical address).

ECHn

Exchange

One or more DTCs for "Exchange" are
detected in either "System Check
Mode" or "Diagnostic Memory Mode".

Go to the detailed information mode

to check the trouble area on the DTC

list.

CHEC

Check

When no DTCs are detected for
"Exchange", one or more DTCs for
"Check" are detected in either "System
Check Mode" or "Diagnostic Memory
Mode".

Go to the detailed information mode

to check the trouble area on the DTC

list.

OLd Old version

Old DTC application is identified and
DTC is detected in either "System
Check Mode" or "Diagnostic Memory
Mode".

-

nrES

No

response

The device gives no response to any
one of "System Check Mode ON
Request", "System Check Result
Request", and "Diagnostic Memory
Request".

Check the power source circuit and

the communication circuit of the

component indicated by the

component code (physical address).

Physical address No.

Name

190

Radio receiver

440*

Stereo component amplifier

19D*

"Bluetooth" handsfree module

HINT:
*: for Separate type amplifier system

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra