Toyota Tundra. Manual — part 183

K3-6 (SWG) -

K4-20 (GND)

BR - W-B

Steering pad switch
ground

Always

Below 1 V

K3-7(SW1) -

K4-20 (GND)

LG - W-B

Steering pad switch
signal

Steering pad switch not
operated

4 V or more

--> Seek+ switch

pushed

--> Approx. 0.5 V

--> Seek- switch pushed --> Approx. 0.9 V
--> Volume+ switch
pushed

--> Approx. 2.0 V

--> Volume- switch
pushed

--> Approx. 3.4 V

K3-8 (SW2) -

K4-20 (GND)

GR - W-B

Steering pad switch
signal

Steering pad switch not
operated

4 V or more

--> MODE switch

pushed

--> Approx. 0.5 V

--> On Hook switch
pushed

--> Approx. 0.9 V

--> Off Hook switch
pushed

--> Approx. 2.0 V

K3-11 (IVO+) -

K4-20 (GND)

Y - W-B

Voice signal

"Bluetooth" handsfree
voice signal is playing

A waveform
synchronized with
sounds is output

K3-12 (IVO-) -

K4-20 (GND)

BR - W-B Voice signal

"Bluetooth" handsfree
voice signal is playing

A waveform
synchronized with
sounds is output

K3-13(SLD1) -

Body ground

Shielded -

Body ground

Shield ground

Always

Below 1 V

K3-15(ARI) -

K4-20 (GND)

R - W-B

Sound signal (Right)

External device is
playing (When stereo
jack is used)

A waveform
synchronized with
sounds is output

K3-16(ASGN) -

K4-20 (GND)

W - W-B

Ground

Always

Below 1 V

K3-17(ALI) -

K4-20 (GND)

B - W-B

Sound signal (Left)

External device is
playing (When stereo
jack is used)

A waveform
synchronized with
sounds is output

K3-18(AUXG) -

Body ground

Shielded -

Body ground

Shield ground

Always

Below 1 V

K3-19(AUXI) -

K4-20 (GND)

SB - W-B

External device
connection detection
signal

External device is
connected

Below 1 V

K22-5(CDL-) -

L51-20 (GND)*

W - W-B

Sound signal (left)

RSE system is playing

Waveform
synchronized with
sound is output

K22-4(CDL+) -

L51-20 (GND)*

R - W-B

Sound signal (left)

RSE system is playing

Waveform
synchronized with

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

2. CHECK RADIO RECEIVER (for Built-in Type Amplifier System)

sound is output

K22-3(CDR-) -

L51-20 (GND)*

G - W-B

Sound signal (right)

RSE system is playing

Waveform
synchronized with
sound is output

K22-2(CDR+) -

L51-20 (GND)*

B - W-B

Sound signal (right)

RSE system is playing

Waveform
synchronized with
sound is output

K22-1 (CSLD) -

Body ground*

Shielded -

Body ground

Ground

Always

Below 1 V

K22-6(MUTE) -

L51-20 (GND)*

O - W-B

Mute signal

RSE system is playing -
-> changing modes

Above 3.5 V --> Below
1 V

K22-9 (TXM+) -

K3-20 (GND)*

G - BR

AVC-LAN
communication signal

Ignition switch ACC

2 to 3V

K22-10 (TXM-)

- K3-20 (GND)*

R - BR

AVC-LAN
communication signal

Ignition switch ACC

2 to 3V

K9-1 (MIC-) -

K4-20 (GND)

Y - W-B

Microphone voice
signal

Bluetooth handsfree
function is ON

A waveform
synchronized with
sounds is output

K9-2 (MIC+) -

K4-20 (GND)

BR - W-B

Microphone voice
signal

Bluetooth handsfree
function is ON

A waveform
synchronized with
sounds is output

K9-3 (TSW-) -

K4-20 (GND)

W-B - W-B Ground

Always

Below 1 V

K9-4 (SPD) -

K4-20 (GND)

W - W-B

Speed signal from
combination meter

Ignition switch ON,
drive wheels turned
slowly

Pulse generation

K9-5 (+B) - K4-

20 (GND)

L - W-B

Battery

Always

11 to 14 V

K9-6 (MGND) -

K4-20 (GND)

W-B - W-B Ground

Always

Below 1 V

K9-7 (MCVD) -

K4-20 (GND)

LG - W-B

Microphone AMP
power supply

Ignition switch OFF -->
ACC

Below 1 V --> 5 V

K9-14(GND) -

K4-20 (GND)

W-B - W-B Ground

Always

Below 1 V

K9-16(ACC) -

K4-20 (GND)

GR - W-B Accessory (ON)

Ignition switch OFF -->
ACC

Below 1 V --> 11 to 14
V

HINT:
*: w/ Rear Seat Entertainment System

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

Fig. 141: Identifying Radio Receiver (For Built-in Type Amplifier System) Connectors Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

VOLTAGE SPECIFICATION

Terminal No.

(Symbols)

Wiring

Color

Terminal

Description

Condition

Specified Condition

K1-1 (FR+) -

K1-7(GND)

LG - W-B

Sound signal (Front
right)

Audio system is playing

A waveform
synchronized with
sounds is output

K1-2(FL+) - K1-

7(GND)

Y - W-B

Sound signal (Front
left)

Audio system is playing

A waveform
synchronized with
sounds is output

K1-3(ACC) -

K1-7(GND)

GR - W-B Accessory (ON)

Ignition switch OFF -->
ACC

Below 1 V --> 11 to 14
V

K1-4(B) - K1-7

(GND)

L - W-B

Battery

Always

11 to 14 V

K1-5(FR-) - K1-

7(GND)

L - W-B

Sound signal (Front
right)

Audio system is playing

A waveform
synchronized with
sounds is output

K1-6(FL-) - K1-

7(GND)

W - W-B

Sound signal (Front
left)

Audio system is playing

A waveform
synchronized with
sounds is output

K1-7 (GND) -

Body ground

W-B - Body

ground

Ground

Always

Below 1 V

K1-10(ILL+) -

K1-7(GND)

SB - W-B

Illumination signal

Light control switch
OFF --> TAIL or
HEAD

Below 1 V --> 11 to 14
V

K2-1 (RR+) -

K1-7(GND)

R - W-B

Sound signal (Rear
right)

Audio system is playing

A waveform
synchronized with
sounds is output

K2-2(RL+) -

K1-7(GND)

Y - W-B

Sound signal (Rear
left)

Audio system is playing

A waveform
synchronized with
sounds is output

K2-3(RR-) - K1-

7(GND)

W - W-B

Sound signal (Rear
right)

Audio system is playing

A waveform
synchronized with
sounds is output

K2-5(ILL-) -

K1-7(GND)

O - W-B

Illumination (rheostat)
signal

Light control switch
OFF --> TAIL or
HEAD

Below 1 V --> Pulse
generation

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

3. CHECK STEREO COMPONENT AMPLIFIER

Fig. 142: Identifying Stereo Component Amplifier Connectors Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

VOLTAGE SPECIFICATION

K2-6(RL-) - K1-

7(GND)

B - W-B

Sound signal (Rear
left)

Audio system is playing

A waveform
synchronized with
sounds is output

K3-3(SPD) -

K1-7(GND)

W - W-B

Speed signal from
combination meter

Ignition switch ON,
drive wheels turned
slowly

Pulse generation

K3-15(ARI) -

K1-7(GND)

R - W-B

Sound signal (Right)

External device is
playing (When stereo
jack is used)

A waveform
synchronized with
sounds is output

K3-16(ASGN) -

K1-7 (GND)

W - Body

ground

Ground

Always

Below 1 V

K3-17(ALI) -

K1-7(GND)

B - W-B

Sound signal (Left)

External device is
playing (When stereo
jack is used)

A waveform
synchronized with
sounds is output

K3-18(AUXG) -

K1-7 (GND)

Shielded -

Body ground

Shield ground

Always

Below 1 V

K3-19(AUXI) -

K1-7 (GND)

SB - W-B

External device
connection detection
signal

External device is
connected

Below 1 V

Terminal No.

(Symbols)

Wiring

Color

Terminal Description

Condition

Specified Condition

K16-1 (+B) -

K17-6(GND)

R - BR

Battery

Always

11 to 14 V

K17-4(CTR+) -

K17-6 (GND)

W - BR

Sound Signal (Center) Audio system playing

A waveform
synchronized with
sounds is output

K16-3(RL+) -
K17-6 (GND)

Y - BR

Sound Signal (Left)

Audio system is
playing

A waveform
synchronized with
sounds is output

K16-10(RR+) -

K17-6 (GND)

R - BR

Sound signal (Right)

Audio system is
playing

A waveform
synchronized with
sounds is output

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra