Terminals Of Ecu

RADIO AND NAVIGATION ASSEMBLY

Fig 1: Identifying Radio And Navigation Assembly Connector Terminals

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

TERMINAL DESCRIPTION

Symbols (Terminal No.)

Wiring Color

Terminal Description

Condition

Specification

PKB (R12-1) - GND (R15-20)

R-W - W-B

Parking brake signal

See "Vehicle Signal Check" (See DISPLAY CHECK MODE )

SPD (R12-3) - GND (R15-20)

V-W - W-B

Speed signal from combination meter

See "Vehicle Signal Check" (See DISPLAY CHECK MODE )

REV (R12-5) - GND (R15-20)

R-B - W-B

Reverse signal

See "Vehicle Signal Check" (See DISPLAY CHECK MODE )

SWG (R13-6) - Body ground

Y - Body ground

Steering pad switch signal

Always

Below 1 V

SW1 (R13-7) - SWG (R13-6)

LG-Y

Steering pad switch signal

No switch is pushed

4 V or more

→ SEEK+ switch pushed

→ Approx. 0.5 V

→ SEEK- switch pushed

→ Approx. 0.9 V

→ VOL+ switch pushed

→ Approx. 2.0 V

→ VOL- switch pushed

→ Approx. 3.4 V

SW2 (R13-8) - SWG (R13-6)

L - Y

Steering pad switch signal

No switch is pushed

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

→ VOICE switch pushed

→ Approx. 3.4 V

IVO+ (R13-11) - GND (R15-20)

R - W-B

Voice guidance signal

Voice guidance is provided

A waveform synchronized with sounds is output

IVO- (R13-12) - GND (R15-20)

G - W-B

Voice guidance signal

Voice guidance is provided

A waveform synchronized with sounds is output

SLD1 (R13-13) - Body ground Shielded - Body ground

Voice sound signal

shielded ground

Always

Below 1 V

CSLD (R14-1) - Body ground (⁽¹⁾)

Shielded - Body ground

Shielded ground

Always

Below 1 V

CDR+ (R14-2) - GND (R15-20) (⁽¹⁾)

B - W-B

RSE system sound signal

RSE system is playing

A waveform synchronized with sounds is output

CDR- (R14-3) - GND (R15-20) (⁽¹⁾)

W - W-B

RSE system sound signal

RSE system is playing

A waveform synchronized with sounds is output

CDL+ (R14-4) - GND (R15-20) (⁽¹⁾)

R - W-B

RSE system sound signal

RSE system is playing

A waveform synchronized with sounds is output

CDL- (R14-5) - GND (R15-20) (⁽¹⁾)

G - W-B

RSE system sound signal

RSE system is playing

A waveform synchronized with sounds is output

MUTE (R14-6) - GND (R15-20) (⁽¹⁾)

R-W - W-B

Mute signal

RSE system is playing → Source is changed with remote controller (signal from RSE system)

Above 3.5 V → Below 1 V

TXM+ (R14-9) - GND (R15-20) (⁽¹⁾)

P - W-B

AVC-LAN communication signal

Turn ignition switch to ACC

2 to 3V

TXM- (R14-10) - GND (R15-20) (⁽¹⁾)

V - W-B

AVC-LAN communication signal

Turn ignition switch to ACC

2 to 3V

B(R15-1) - GND (R15-20)

L-Y - W-B

Battery

Always

10 to 14 V

ILL+ (R15-2) - GND (R15-20)

G - W-B

Illumination signal

Turn ignition switch ON Light control switch OFF → TAIL or ON

Below 1V → 10 to 14 V

ATX+ (R15-5) - GND (R15-20)

LG-B - W-B

AVC-LAN communication signal

Turn ignition switch to ACC

2 to 3V

MUTE (R15-7) - GND (R15-20)

GR-B - W-B

Mute signal

Audio system is playing → Changing

Above 3.5 V → Below 1 V

R+(R15-8) - GND(R15-20)

W - W-B

Sound signal (Right)

Audio system is playing

A waveform synchronized with sounds is output

L+ (R15-9) - GND (R15-20)

G - W-B

Sound signal (Left)

Audio system is playing

A waveform synchronized with sounds is output

SLD (R15-10) - Body ground

Shielded - Body ground

Shielded ground

Always

Below 1 V

ACC (R15-11) - GND (R15-20)

GR - W-B

Accessory (ON)

Turn ignition switch OFF → ACC or ON

Below 1V → 10 to 14 V

ILL- (R15-12) - GND (R15-20)

W-G - W-B

Illumination signal

Turn ignition switch ON Light control switch OFF → TAIL or ON

Below 1 V → 10 to 14V

ANT (R15-13) - GND (R15-20)

P-L - W-B

Power source of antenna

Radio switch ON and AM or FM

10 to 14 V

ATX- (R15-15) - GND (R15-20)

LG-R - W-B

AVC-LAN communication signal

Turn ignition switch to ACC

2 to 3V

R- (R15-18) - GND (R15-20)

B - W-B

Sound signal (Right)

Audio system is playing

A waveform synchronized with sounds is output

L-(R15-19) - GND(R15-20)

R - W-B

Sound signal (Left)

Audio system is playing

A waveform synchronized with sounds is output

GND (R15-20) - Body ground

W-B - Body ground

Ground

Always

Below 1 V

MIC+ (R10-19) - GND (R15-20)

B - W-B

Microphone voice signal

See "Microphone Check" (See NAVIGATION CHECK MODE )

MIC- (R10-20) - Body ground

W - Body ground

Microphone voice signal

See "Microphone Check" (See NAVIGATION CHECK MODE )

MACC (R10-17) - GND (R15-20)

R - W-B

Microphone AMP power supply

Turn ignition switch OFF → ON

Below 1 V → 5 V

TSW- (R10-12) - GND (R15 -20)

W-B - W-B

Telephone relation switch signal

Always

Below 1 V

SGND (R10-18) - GND (R15-20)

W-B - W-B

Ground

Always

Below 1 V

CA+ (R10-24) - GND (R15-20)

R - W-B

Television camera power supply

Turn ignition switch ON, shift lever in R position

Approx. 6 V

CGND (R10-21) - Body ground

W - Body ground

Ground

Always

Below 1 V

V+ (R10-22) - CGND (R10-21)

B-W

Television camera image signal

Turn ignition switch ON, shift lever in R position

Pulse generation (Refer to b waveform 2)

V- (R10-23) - CGND (R10-21)

Shielded - W

Shielded ground

Always

Below 1 V

VV+ (R16-1) - GND (R15-20) (⁽¹⁾)

Y - W-B

Display signal

DVD is played on radio and navigation assembly

A waveform synchronized with display signals is output. (Refer to a waveform 1)

VV- (R16-4) - Body ground (⁽¹⁾)

BR - Body ground

Ground

Always

Below 1 V

VAR+ (R16-2) - GND (R15-20)

P - W-B

Sound signal (Right)

External device is playing (When stereo jack is used)

A waveform synchronized with sounds is output

VAL+ (R16-3) - GND (R15-20)

L - W-B

Sound signal (Left)

External device is playing (When stereo jack is used)

A waveform synchronized with sound is output

VA-(R16-5)- Body ground

BR - Body ground

Shielded ground

Always

Below 1 V

ADPG (R16-6) - GND (R15-20)

G - W-B

External device connection detection signal

External device is connection

Below 1 V

⁽¹⁾	with Rear Seat Entertainment System

Reference: waveform 1
HINT:
- Terminal: VV+ - VV-
- Gauge set: 200 mV/DIV, 10 μ/DIV
- Condition: DVD is played on radio and navigation assembly
  
  Fig 2: Identifying Reference Waveform 1
  Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Reference: waveform 2
HINT:
- Terminal: V+ - CGND
- Gauge set: 0.2 V/DIV, 0.2μ/DIV
- Condition: Ignition switch: ON, shift lever: R position

STEREO COMPONENT AMPLIFIER

Fig 4: Identifying Connector Terminals Of ECU - Stereo Component Amplifier

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

TERMINAL DESCRIPTION

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
MUTE (S11-1) - GND2 (S10-15)	GR-B - W-B	Mute signal from radio receiver	Audio system is playing → Changing	Above 3.5 V → Below 1 V
L-(S11-2) - GND2(S10-15)	R - W-B	Sound signal (Left)	Audio system is playing	A waveform synchronized with sounds is output
L+(S11-3) - GND2(S10-15)	G - W-B	Sound signal (Left)	Audio system is playing	A waveform synchronized with sounds is output
R-(S11-4) - GND2(S10-15)	B - W-B	Sound signal (Right)	Audio system is playing	A waveform synchronized with sounds is output
R+(S11-5) - GND2(S10-15)	W - W-B	Sound signal (Right)	Audio system is playing	A waveform synchronized with sounds is output
TX- (S11-7) - GND2 (S10-15)	LG-R - W-B	AVC-LAN communication signal	Turn ignition switch to ACC	2 to 3V
TX+ (S11-8) - GND2 (S10-15)	LG-B - W-B	AVC-LAN communication signal	Turn ignition switch to ACC	2 to 3 V
SPD(S11-11)-GND2(S10-15)	V-W - W-B	Speed signal from combination meter	Turn ignition switch to ON. Drive wheels are turned slowly	Pulse generation
ACC (S11-12) - GND2 (S10-15)	GR - W-B	Accessory (ON)	Turn ignition switch OFF → ACC	Below 1V → 10 to 14 V
INT- (S11-22) - GND2 (S10-15)	G - W-B	Voice guidance signal	Voice guidance is provided	A waveform synchronized with sounds is output
INT+ (S11-23) - GND2 (S10-15)	R - W-B	Voice guidance signal	Voice guidance is provided	A waveform synchronized with sounds is output
B+(S10-1) - GND2(S10-15)	L-R - W-B	Battery	Always	10 to 14 V
SUR+ (S10-2) - GND2 (S10-15)	W - W-B	Sound signal (Rear stereo component)	Audio system is playing	A waveform synchronized with sounds is output
CTR+ (S10-3) - GND2 (S10-15)	L-B - W-B	Sound signal (Front Center)	Audio system is playing	A waveform synchronized with sounds is output
RL+ (S10-4) - GND2 (S10-15)	B - W-B	Sound signal (Rear Left)	Audio system is playing	A waveform synchronized with sounds is output
RR+ (S10-5) - GND2 (S10-15)	R - W-B	Sound signal (Rear Right)	Audio system is playing	A waveform synchronized with sounds is output
FL+ (S10-6) - GND2 (S10-15)	P - W-B	Sound signal (Front Left)	Audio system is playing	A waveform synchronized with sounds is output
FR+ (S10-7) - GND2 (S10-15)	LG - W-B	Sound signal (Front Right)	Audio system is playing	A waveform synchronized with sounds is output
WF2+ (S10-8) - GND2 (S10-15)	R-L - W-B	Sound signal (Woofer Box)	Audio system is playing	A waveform synchronized with sounds is output
WF1+ (S10-9) - GND2 (S10-15)	L-Y - W-B	Sound signal (Woofer Box)	Audio system is playing	A waveform synchronized with sounds is output
B2+(S10-10) - GND2(S10-15)	L-R - W-B	Battery	Always	10 to 14 V
SUR- (S10-11) - GND2 (S10-15)	L - W-B	Sound signal (Rear stereo component)	Audio system is playing	A waveform synchronized with sounds is output
CTR- (S10-12) - GND2 (S10-15)	L-R - W-B	Sound signal (Front Center)	Audio system is playing	A waveform synchronized with sounds is output
RL- (S10-13) - GND2 (S10-15)	Y - W-B	Sound signal (Rear Left)	Audio system is playing	A waveform synchronized with sounds is output
RR- (S10-14) - GND2 (S10-15)	W - W-B	Sound signal (Rear Right)	Audio system is playing	A waveform synchronized with sounds is output
GND2 (S10-15) - Body ground	W-B - Body Ground	Ground	Always	Below 1 V
GND (S10-16) - Body ground	W-B - Body ground	Ground	Always	Below 1 V
FL- (S10-17) - GND2 (S10-15)	V - W-B	Sound signal (Front Left)	Audio system is playing	A waveform synchronized with sounds is output
FR- (S10-18) - GND2 (S10-15)	L - W-B	Sound signal (Front Right)	Audio system is playing	A waveform synchronized with sounds is output
WF2- (S10-19) - GND2 (S10-15)	W-L - W-B	Sound signal (Woofer Box)	Audio system is playing	A waveform synchronized with sounds is output
WF1- (S10-20) - GND2 (S10-15)	L-W - W-B	Sound signal (Woofer Box)	Audio system is playing	A waveform synchronized with sounds is output

TELEVISION DISPLAY ASSEMBLY (See TERMINALS OF ECU )