Terminals Of Ecu

WARNING: This page is about a different car, the 2007 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.

RADIO RECEIVER

Fig 1: Identifying Radio Receiver Terminals Of ECU

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

VOLTAGE SPECIFICATION

Symbols (Terminal No.)

Wiring Color

Terminal Description

Condition

Specification

B (E69-1) - GND(E69-20)

L-W-B

Battery

Always

10 to 14 V

ILL+ (E69-2) - GND (E69-20)

G-W-B

Illumination signal

Light control switch OFF

Below 1 V

ILL+ (E69-2) - GND (E69-20)

G-W-B

Illumination signal

Light control switch TAIL

10 to 14 V

ATX+ (E69-5) - GND (E69-20)

G-W-B

AVC-LAN communication signal

Turn engine switch on (ACC)

2 to 3 V

MUTE (E69-7) - GND (E69-20)

GR-W-B

Mute signal

Audio system is playing

Above 3.5 V

MUTE (E69-7) - GND (E69-20)

GR-W-B

Mute signal

Audio system is changing

Below 1 V

R+ (E69-8) - GND (E69-20)

R-W-B

Sound signal (Right)

Audio system is playing

A waveform synchronized with sounds is output

L+ (E69-9) - GND (E69-20)

B-W-B

Sound signal (Left)

Audio system is playing

A waveform synchronized with sounds is output

SLD (E69-10) - Body ground

Shielded - Body ground

Shielded ground

Always

Below 1 V

ACC (E69-11) - GND (E69-20)

GR-W-B

Accessory (ON)

Turn engine switch off

Below 1 V

ACC (E69-11) - GND (E69-20)

GR-W-B

Accessory (ON)

Turn engine switch on (ACC)

10 to 14 V

ILL- (E69-12) - GND (E69-20)

W-W-B

Illumination signal

Light control switch OFF

Below 1 V

ILL- (E69-12) - GND (E69-20)

W-W-B

Illumination signal

Light control switch TAIL

10 to 14 V

ANT (E69-13) - GND (E69-20)

LG-W-B

Power source of antenna

Radio switch ON and AM or FM

10 to 14 V

ATX- (E69-15) - GND (E69-20)

R-W-B

AVC-LAN communication signal

Turn engine switch on (ACC)

2 to 3 V

R- (E69-18) - GND (E69-20)

G-W-B

Sound signal (Right)

Audio system is playing

A waveform synchronized with sounds is output

L- (E69-19) - GND (E69-20)

W-W-B

Sound signal (Left)

Audio system is playing

A waveform synchronized with sounds is output

GND (E69-20) - Body ground

W-B-Body ground

Ground

Always

Below 1 V

SWG (E70-6) - GND (E69-20)

B-W-B

Steering pad switch ground

Always

Below 1 V

SW1 (E70-7) - GND (E69-20)

O-W-B

Steering pad switch signal

Steering pad switch not operated

4 V or higher

SW1 (E70-7) - GND (E69-20)

O-W-B

Steering pad switch signal

SEEK+ switch pushed

Approx. 0.5 V

SW1 (E70-7) - GND (E69-20)

O-W-B

Steering pad switch signal

SEEK- switch pushed

Approx. 0.9 V

SW1 (E70-7) - GND (E69-20)

O-W-B

Steering pad switch signal

VOL+ switch pushed

Approx. 2.0 V

SW1 (E70-7) - GND (E69-20)

O-W-B

Steering pad switch signal

VOL- switch pushed

Approx. 3.4 V

SW2 (E70-8) - GND (E69-20)

V-W-B

Steering pad switch signal

Steering pad switch not operated

4 V or more

SW2 (E70-8) - GND (E69-20)

V-W-B

Steering pad switch signal

MODE switch pushed

Approx. 0.5 V

SW2 (E70-8) - GND (E69-20) (⁽⁴⁾)

V-W-B

Steering pad switch signal

ON HOOK switch pushed

Approx. 0.9 V

SW2 (E70-8) - GND (E69-20) (⁽⁴⁾)

V-W-B

Steering pad switch signal

OFF HOOK switch pushed

Approx. 2.0 V

SW2 (E70-8) - GND (E69-20) (⁽¹⁾)

V-W-B

Steering pad switch signal

VOICE switch pushed

Approx. 3.4 V

TX+ (E70-9) - GND (E69-20) (⁽¹⁾)

L-W-B

AVC-LAN communication signal

Turn engine switch on (ACC)

2 to 3 V

TX- (E70-10) - GND (E69-20) (⁽¹⁾)

LG-W-B

AVC-LAN communication signal

Turn engine switch on (ACC)

2 to 3 V

IO1+ (E70-11) - GND (E69-20) (⁽⁴⁾)

Y-W-B

"Bluetooth" voice signal

"Bluetooth" handsfree voice signal is playing

A waveform synchronized with sounds is output

I01- (E70-12) - GND (E69-20) (⁽⁴⁾)

BR-W-B

"Bluetooth" voice signal

"Bluetooth" handsfree voice signal is playing

A waveform synchronized with sounds is output

ARI (E70-15) - GND (E69-20) (⁽²⁾)

B-W-B

Sound signal (Right)

External device is playing (When stereo jack adapter is used)

A waveform synchronized with sounds is output

ASGN (E70-16) - GND (E69-20) (⁽²⁾)

W-W-B

Ground

Always

Below 1 V

ALI (E70-17) - GND (E69-20) (⁽²⁾)

R-W-B

Sound signal (Left)

External device is playing (When stereo jack adapter is used)

A waveform synchronized with sounds is output

AUXI (E70-19) - GND (E69-20) (⁽²⁾)

G-W-B

External device connection detection signal

External device is connected

Below 1 V

ADIM (E70-20) - GND (E69-20)

L-W-B

Illumination (auto dimmer) signal

Turn engine switch on (IG), headlight dimmer switch in TAIL or ON and auto light control sensor covered by hand

Above 9 V

ARI (E71-2) - GND (E69-20) (⁽³⁾)

B-W-B

Sound signal (Right)

External device is playing (When stereo jack adapter is used)

A waveform synchronized with sounds is output

ASGN (E71-5) - GND (E69-20) (⁽³⁾)

W-W-B

Ground

Always

Below 1 V

ALI (E71-3) - GND (E69-20) (⁽³⁾)

R-W-B

Sound signal (Left)

External device is playing (When stereo jack adapter is used)

A waveform synchronized with sounds is output

AUXI (E71-6) - GND (E69-20) (⁽³⁾)

G-W-B

External device connection detection signal

External device is connected

Below 1 V

NTSC (E72-1) - GND (E69-20) (⁽³⁾)

BR-W-B

DVD image signal

DVD played on multi-display

Pulse generation Refer to waveform 1

GND (E72-2) - Body ground (⁽³⁾)

Y - Body ground

Ground

Always

Below 1 V

SLD (E72-3) - Body ground (⁽³⁾)

Shielded - Body ground

Always

Below 1 V

DVD (s1-1) - GND (E69-20) (⁽³⁾)

B-W-B

Digital sound signal

DVD played on multi-display

Pulse generation

MIC- (E73-1) - GND (E69-20) (⁽⁴⁾)

R-W-B

Microphone voice signal

"Bluetooth" handsfree function is ON

A waveform synchronized with sounds is output

MIC+ (E73-2) - GND (E69-20) (⁽⁴⁾)

G-W-B

Microphone voice signal

"Bluetooth" handsfree function is ON

A waveform synchronized with sounds is output

TSW- (E73-3) - GND (E69-20) (⁽⁴⁾)

W-W-B

Ground

Always

Below 1 V

+B (E73-5) - GND (E69-20) (⁽⁴⁾)

L-W-B

Battery

Always

10 to 14 V

MGND (E73-6) - GND (E69-20) (⁽⁴⁾)

W-W-B

Ground

Always

Below 1 V

MCVD (E73-7) - GND (E69-20) (⁽⁴⁾)

W-W-B

Microphone AMP power supply

Turn engine switch on (IG)

5 V

GND (E73-14) - Body ground (⁽⁴⁾)

W-B-Body ground

Ground

Always

Below 1 V

ACC (E73-16) - GND (E69-20) (⁽⁴⁾)

GR-W-B

Accessory (ON)

Turn engine switch on (ACC)

10 to 14 V

⁽¹⁾	with Navigation System

⁽²⁾	for CD Changer Models

⁽³⁾	for DVD Changer Models

⁽⁴⁾	for Radio Receiver with Built-in "Bluetooth" Handsfree Function

Reference: waveform 1
HINT:
- Terminal: NTSC - Body ground
- Setting: 200 mV/DIV, 10 μs/DIV
- Condition: DVD played on multi-display.
Fig 2: Identifying Waveform 1
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

STEREO COMPONENT AMPLIFIER

Fig 3: Identifying Stereo Component Amplifier Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

VOLTAGE SPECIFICATION

Symbols (Terminal No.)

Wiring Color

Terminal Description

Condition

Specification

+B (M29-1) - GND (M29-2)

L-W-B

Battery

Always

10 to 14 V

GND (M29-2) - Body ground

W-B-Body ground

Ground

Always

Below 1 V

+B2 (M29-3) - GND (M29-2) (⁽¹⁾)

L-W-B

Battery

Always

10 to 14 V

GND2 (M29-6) - Body ground

W-B-Body ground

Ground

Always

Below 1 V

WF1+ (M32-1) - GND (M29-2)

G-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

WF2+ (M32-2) - GND (M29-2)

R-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

SR+ (M32-2) - GND (M29-2) (⁽¹⁾)

R-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

CTR+ (M32-3) - GND (M29-2)

R-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

WFL+ (M32-4) - GND (M29-2) (⁽¹⁾)

R-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

WF1- (M32-5) - GND (M29-2) (⁽¹⁾)

B-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

WF2- (M32-6) - GND (M29-2)

W-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

SR- (M32-6) - GND (M29-2) (⁽¹⁾)

W-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

SL- (M32-7) - GND (M29-2) (⁽¹⁾)

P-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

SL+ (M32-8) - GND (M29-2) (⁽¹⁾)

V-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

CTR- (M32-9) - GND (M29-2)

W-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

WFL- (M32-10) - GND (M29-2) (⁽¹⁾)

W-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

WFR+ (M31-1) - GND (M29-2) (⁽¹⁾)

G-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

FL+ (M31-2) - GND (M29-2)

P-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

RL+ (M31-3) - GND (M29-2)

B-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

RR+ (M31-4) - GND (M29-2)

R-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

WFR- (M31-5) - GND (M29-2) (⁽¹⁾)

B-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

FL- (M31-6) - GND (M29-2)

V-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

FR- (M31-7) - GND (M29-2)

L-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

FR+ (M31-8) - GND (M29-2)

LG-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

RL- (M31-9) - GND (M29-2)

Y-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

RR- (M31-10) - GND (M29-2)

W-W-B

Sound signal

Audio system is playing

A waveform synchronized with sounds is output

MUTE (M30-1) - GND (M29-2)

GR-W-B

Mute signal

Audio system is playing

Above 3.5 V

MUTE (M30-1) - GND (M29-2)

GR-W-B

Mute signal

Audio system is changing

Below 1 V

L- (M30-2) - GND (M29-2)

W-W-B

Sound signal (Left)

Audio system is playing

A waveform synchronized with sounds is output

L+ (M30-3) - GND (M29-2)

B-W-B

Sound signal (Left)

Audio system is playing

A waveform synchronized with sounds is output

R- (M30-4) - GND (M29-2)

G-W-B

Sound signal (Right)

Audio system is playing

A waveform synchronized with sounds is output

R+ (M30-5) - GND (M29-2)

R-W-B

Sound signal (Right)

Audio system is playing

A waveform synchronized with sounds is output

SLD (M30-6) - Body ground

Shielded - Body ground

Shielded ground

Always

Below 1 V

TX- (M30-7) - GND (M29-2)

R-W-B

AVC-LAN communication signal

Turn engine switch on (ACC)

2 to 3 V

TX+ (M30-8) - GND (M29-2)

G-W-B

AVC-LAN communication signal

Turn engine switch on (ACC)

2 to 3 V

SPD (M30-11) - GND (M29-2)

SB-W-B

Speed signal

Turn engine switch on (IG), drive wheels are turned slowly

Pulse generation

ACC (M30-12) - GND (M29-2)

GR-W-B

Accessory (ON)

Turn engine switch off

Below 1 V

ACC (M30-12) - GND (M29-2)

GR-W-B

Accessory (ON)

Turn engine switch on (ACC)

10 to 14 V

II1- (M30-14) - GND (M29-2)

BR-W-B

Voice guidance signal

Navigation voice or "Bluetooth" handsfree voice signal is provided

A waveform synchronized with sounds is output

II1+ (M30-15) - GND (M29-2)

Y-W-B

Voice guidance signal

Navigation voice or "Bluetooth" handsfree voice signal is provided

A waveform synchronized with sounds is output

DVD (t1-1) - GND (M29-2) (⁽¹⁾)

B-W-B

Digital sound signal

DVD played on multi-display

Pulse generation

⁽¹⁾	with Rear Header Speaker