Terminals Of Ecu

MULTI-DISPLAY:

Fig 1: Identifying Multi-Display Connectors Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TERMINAL NUMBER AND CONDITION TERMINAL DESCRIPTION

Symbols (Terminal No.)

Wiring Color

Terminal Description

Condition

Specification

NTSC (M14-1) (⁽²⁾) - GND1 (M5-3)

Y - BR

Display signal

DVD is played on multi-display

SG (M14-4) (⁽²⁾) - Body ground

BR - Body ground

Ground

Always

Below 1 V

SGD1 (M14-5) (⁽²⁾) - Body ground

Shielded - Body ground

Shielded ground

Always

Below 1 V

SGND (M6-3) - Body ground

W-B - Body ground

Ground

Always

Below 1 V

MIN+ (M6-4) - GND1 (M5-3)

R- BR

Microphone voice signal

See "microphone check" (see NAVIGATION CHECK MODE (MICROPHONE CHECK) )

MIN- (M6-5) - Body ground

G - Body ground

Microphone voice signal

See "microphone check" (see NAVIGATION CHECK MODE (MICROPHONE CHECK) )

MACC (M6-6) - GND1 (M5-3)

Y-G - BR

Microphone AMP power supply

Turn ignition switch OFF --> ON

Below 1 V --> 5 V

TX3+ (M6-11) - GND1 (M5-3)

G - BR

AVC-LAN communication signal

Turn ignition switch to ACC

2 to 3 V

TX3- (M6-12) - GND1 (M5-3)

R - BR

AVC-LAN communication signal

Turn ignition switch to ACC

2 to 3 V

TX+ (M6-13) (⁽¹⁾) - GND1 (M5-3)

P - BR

AVC-LAN communication signal

Turn ignition switch to ACC

2 to 3 V

TX- (M6-14) (⁽¹⁾) - GND1 (M5-3)

L - BR

AVC-LAN communication signal

Turn ignition switch to ACC

2 to 3 V

SGND (M6-17) - Body ground

Shielded - Body ground

Shielded ground

Always

Below 1 V

MCO+ (M6-18) - GND1 (M5-3)

BR- BR

Microphone voice signal

See "microphone check" (see NAVIGATION CHECK MODE (MICROPHONE CHECK) )

MCO- (M6-19) - GND1 (M5-3)

Y - BR

Microphone voice signal

See "microphone check" (see NAVIGATION CHECK MODE (MICROPHONE CHECK) )

SLD (M6-20) - Body ground

W-B - Body ground

Ground

Always

Below 1 V

IVO+ (M6-21) - GND1 (M5-3)

G - BR

Telephone voice signal (bluetooth)

See "microphone check" (see NAVIGATION CHECK MODE (MICROPHONE CHECK) )

IVO- (M6-22) - GND1 (M5-3)

R - BR

Telephone voice signal (bluetooth)

See "microphone check" (see NAVIGATION CHECK MODE (MICROPHONE CHECK) )

VR (M6-23) - GND1 (M5-3)

Y - BR

Video return signal

Turn ignition switch OFF

Below 1 V

R (M6-24) - GND1 (M5-3)

B - BR

Display signal (red)

Navigation display is on

G (M6-25) - GND1 (M5-3)

W - BR

Display signal (green)

Navigation display is on

B (M6-26) - GND1 (M5-3)

R - BR

Display signal (blue)

Navigation display is on

SYNC (M6-27) - GND1 (M5-3)

G - BR

Display signal (synchronize)

Navigation display is on

VG (M6-28) - Body ground

BR - Body ground

Shielded ground

Always

Below 1 V

ILL+ (M5-1) - GND1 (M5-3)

G - BR

Illumination signal

Light control switch OFF --> TAIL or ON

Below 1 V --> 10 to 14 V

ILL- (M5-2) - Body ground

W-B - Body ground

Illumination signal

Light control switch OFF --> TAIL or ON (Light intensity is not max. or min.)

Below 1 V --> Pulse generation

GND1 (M5-3) - Body ground

BR - Body ground

Ground

Always

Below 1 V

TC (M5-7) - GND1 (M5-3)

P-L - BR

Diagnosis ON signal

Turn ignition switch to ON

9 to 14 V

IG (M5-10) - GND1 (M5-3)

B-R - BR

Ignition (ON)

Turn ignition switch OFF --> ON

Below 1 V --> 10 to 14 V

ACC (M5-11) - GND1 (M5-3)

GR - BR

Accessory (ON)

Turn ignition switch OFF --> ACC or ON

Below 1 V --> 10 to 14 V

+B1 (M5-12) - GND1 (M5-3)

R-L - BR

Battery

Always

10 to 14 V

PKB (M5-16) - GND1 (M5-3)

LG - BR

Parking brake signal

Turn parking brake switch ON --> OFF

Below 1 V --> 10 to 14 V

DR (M5-17) - GND1 (M5-3)

G-R - BR

Illumination (auto dimmer) signal

Ignition switch ON, light control switch TAIL or ON and automatic light control sensor covered by hand

Above 9 V

TX1+ (M5-18) - GND1 (M5-3)

B - BR

AVC-LAN communication signal

Turn ignition switch to ON

2 to 3 V

TX1- (M5-19) - GND1 (M5-3)

W- BR

AVC-LAN communication signal

Turn ignition switch to ON

2 to 3 V

SPD (M5-25) - GND1 (M5-3)

V-R - BR

Speed signal from combination meter

See "Vehicle Signal Check Mode" (see DISPLAY CHECK MODE (VEHICLE SIGNAL CHECK) )

⁽¹⁾	Any vehicle except those equipped with only the rear seat entertainment system (w/o back monitor system)

⁽²⁾	w/ Rear Seat Entertainment System

NAVIGATION ECU:

Fig 2: Identifying Navigation ECU Connectors Terminals

TERMINAL NUMBER AND CONDITION TERMINAL DESCRIPTION

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specification
VR (N5-1) - GND (N4-17)	Y - BR	Video return signal	Turn ignition switch OFF	Below 1 V
R (N5-2) - GND (N4-17)	B - BR	Display signal (red)	Navigation display is on	-
B (N5-3) - GND (N4-17)	R - BR	Display signal (blue)	Navigation display is on	-
TX+ (N5-5) - GND (N4-17)	P - BR	AVC-LAN communication signal	Turn ignition switch to ACC	2 to 3 V
VG (N5-6) - Body ground	BR - Body ground	Shielded ground	Always	Below 1 V
G (N5-7) - GND (N4-17)	W - BR	Display signal (green)	Navigation display is on	-
SYNC (N5-8) - GND (N4-17)	G - BR	Display signal (synchronize)	Navigation display is on	-
TX- (N5-10) - GND (N4-17)	L - BR	AVC-LAN communication signal	Turn ignition switch to ACC	2 to 3 V
AUI+ (N4-1) - GND (N4-17)	L - BR	Sound signal (input)	Audio system is playing	-
AUO+ (N4-2) - GND (N4-17)	LG - BR	Sound signal (output)	Audio system is playing	-
SLD1 (N4-3) - Body ground	Shielded - Body ground	Shielded ground	Always	Below 1 V
SPD (N4-5) - GND (N4-17)	V-R - BR	Speed signal from combination meter	See "Vehicle Signal Check Mode" (see NAVIGATION CHECK MODE (VEHICLE SENSORS) )	-
+B (N4-9) - GND (N4-17)	L-Y - BR	Battery	Always	10 to 14 V
AUI- (N4-10) - GND (N4-17)	LG - BR	Sound signal (input)	Audio system is playing	-
AUO- (N4-11) - GND (N4-17)	L - BR	Sound signal (output)	Audio system is playing	-
VOI+ (N4-12) - GND (N4-17)	G - BR	Telephone voice signal (bluetooth)	See "microphone check" (see NAVIGATION CHECK MODE (MICROPHONE CHECK) )	-
VOI- (N4-13) - GND (N4-17)	R - BR	Telephone voice signal (bluetooth)	See "microphone check" (see NAVIGATION CHECK MODE (MICROPHONE CHECK) )	-
REV (N4-14) - GND (N4-17)	R-B - BR	Reverse signal from combination meter	See "Vehicle Signal Check Mode" (see NAVIGATION CHECK MODE (VEHICLE SENSORS) )	-
MUTE (N4-15) - GND (N4-17)	P - BR	Mute signal	Audio system is playing --> Changing mode	Above 3.5 V --> Below 1 V
GND (N4-17) - Body ground	BR - Body ground	Ground	Always	Below 1 V
ACC (N4-18) - GND (N4-17)	GR - BR	Accessory (ON)	Turn ignition switch OFF --> ACC or ON	Below 1 V --> 10 to 14 V
MIC+ (N6-3) - GND (N4-17)	BR - BR	Microphone voice signal	See "microphone check" (see NAVIGATION CHECK MODE (MICROPHONE CHECK) )	-
MIC- (N6-5) - GND (N4-17)	Y - BR	Microphone voice signal	See "microphone check" (see NAVIGATION CHECK MODE (MICROPHONE CHECK) )	-
SNSE (N6-7) - Body ground	BR - Body ground	Microphone connection detection signal	Always	Below 1 V

NETWORK GATEWAY ECU:

Fig 3: Identifying Network Gateway ECU Connectors Terminals

TERMINAL NUMBER AND CONDITION TERMINAL DESCRIPTION

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specification
IG (G3-2) - GND (G3-14)	B-R - W-B	Ignition (ON)	Turn ignition switch OFF --> ON	Below 1 V --> 10 to 14 V
MPD1 (G3-4)	W-G	BEAN signal	See "Diagnosis Check of Multiplex Communication System" (See TERMINALS OF ECU )	-
GTX+ (G3-5) - GND (G3-14)	G - W-B	AVC-LAN communication signal	Turn ignition switch to ACC	2 to 3 V
CG (G3-7) - Body ground	W-B - Body ground	Ground	Always	Below 1 V
BATT (G3-8) - GND (G3-14)	W-R - W-B	Battery	Always	10 to 14 V
ACC (G3-9) - GND (G3-14)	GR - W-B	Accessory (ON)	Turn ignition switch OFF --> ACC or ON	Below 1 V --> 10 to 14 V
MPD2 (G3-11)	B	BEAN signal	See "Diagnosis Check of Multiplex Communication System" (See TERMINALS OF ECU )	-
GTX- (G3-12) - GND (G3-14)	R - W-B	AVC-LAN communication signal	Turn ignition switch to ACC	2 to 3 V
GND (G3-14) - Body ground	W-B - Body ground	Ground	Always	Below 1 V

HINT:

When trouble occurs in the network gateway ECU, the following symptoms are also confirmed simultaneously

"Outside temperature" is not indicated on the multi-display.
"Vehicle information" is not indicated on the multi-display.
Unable to operate the air conditioner system.

RADIO RECEIVER ASSY (SEE TERMINALS OF ECU )
STEREO COMPONENT AMPLIFIER ASSY (SEE TERMINALS OF ECU )
TELEVISION CAMERA ECU (SEE TERMINALS OF ECU )
MULTI-DISPLAY CONTROLLER SUB-ASSY (SEE TERMINALS OF ECU )
STEREO COMPONENT CONTROLLER ASSY (SEE TERMINALS OF ECU )