Terminals Of Ecu

WARNING: This page is about a different car, the 2008 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

MULTI-DISPLAY

Fig 1: Identifying Multi-Display ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

ECU TERMINAL REFERENCE TABLE

Symbols (Terminal No.)

Wiring Color

Terminal Description

Condition

Specification

GND (M5-1) - Body ground

W-B - Body ground

Ground

Always

Below 1 V

ACC (M5-2) - GND (M5-1)

W - W-B

Accessory (ON)

Turn ignition switch off

Below 1 V

ACC (M5-2) - GND (M5-1)

W - W-B

Accessory (ON)

Turn ignition switch to the ACC position

10 to 14 V

+B1 (M5-3) - GND (M5-1)

B - W-B

Battery

Always

10 to 14 V

TX1+ (M5-4) - GND (M5-1)

GR - W-B

AVC-LAN communication signal

Turn ignition switch to the ACC position

2 to 3 V

TX1- (M5-5) - GND (M5-1)

G - W-B

AVC-LAN communication signal

Turn ignition switch to the ACC position

2 to 3 V

TC (M5-7) - GND (M5-1)

P - W-B

Diagnosis ON signal

Turn ignition switch to the ON position

9 to 14 V

PKB (M5-8) - GND (M5-1)

W - W-B

Parking brake signal

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

IG (M5-10) - GND (M5-1)

LG - W-B

Ignition (ON)

Turn ignition switch off

Below 1 V

IG (M5-10) - GND (M5-1)

LG - W-B

Ignition (ON)

Turn ignition switch to the ON position

10 to 14 V

ILL- (M5-11) - GND (M5-1)

Y - W-B

Illumination signal

Turn light control switch OFF

Below 1 V

ILL- (M5-11) - GND (M5-1)

Y - W-B

Illumination signal

Turn light control switch ON

10 to 14 V

ILL+ (M5-12) - GND (M5-1)

R - W-B

Illumination signal

Turn light control switch OFF

Below 1 V

ILL+ (M5-12) - GND (M5-1)

R - W-B

Illumination signal

Turn light control switch ON

10 to 14 V

HAZ (M5-13) - GND (M5-1)

V - W-B

Hazard signal

Turn hazard switch OFF

Below 1 V

HAZ (M5-13) - GND (M5-1)

V - W-B

Hazard signal

Turn hazard switch ON

Pulse generation

AIR (M5-14) - GND (M5-1)

Y - W-B

Passenger airbag off signal

Ignition switch ON, passenger airbag off indicator light off condition

10 to 14 V

ARON (M5-15) - GND (M5-1)

SB - W-B

Passenger airbag on signal

Ignition switch ON, passenger airbag off indicator light on condition

10 to 14 V

PBEW (M5-16) - GND (M5-1)

O - W-B

Passenger seat belt warning signal

Ignition switch ON, front passenger seat and front seat buckle switch ON (Belt unfastened)

10 to 14 V

PBEW (M5-16) - GND (M5-1)

O - W-B

Passenger seat belt warning signal

Ignition switch ON, front passenger seat and front seat buckle switch OFF (Belt fastened)

Below 1 V

DR (M5-17) - GND (M5-1)

L - W-B

Audio dimmer signal

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

Above 9 V

TX2+ (M5-18) - GND (M5-1) (⁽¹⁾)

B - W-B

AVC-LAN communication signal

Turn ignition switch to the ACC position

2 to 3 V

TX2- (M5-19) - GND (M5-1) (⁽¹⁾)

W - W-B

AVC-LAN Communication signal

Turn ignition switch to the ACC position

2 to 3 V

SPD (M5-20) - GND (M5-1)

R - W-B

Speed signal from combination meter

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

REV (M5-21) - GND (M5-1)

V - W-B

Reverse signal

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

SGND (M4-1) - GND (M5-1)

LG - W-B

Signal ground

Always

Below 1 V

MIN+ (M4-2) - GND (M5-1)

G - W-B

Microphone voice signal

See "Microphone & Voice Recognition Check" (See DISPLAY CHECK MODE )

MIN- (M4-3) - GND (M5-1)

R - W-B

Microphone voice signal

See "Microphone & Voice Recognition Check" (See DISPLAY CHECK MODE )

MACC (M4-4) - GND (M5-1)

GR - W-B

Microphone AMP power supply

Turn ignition switch off

Below 1 V

MACC (M4-4) - GND (M5-1)

GR - W-B

Microphone AMP power supply

Turn ignition- switch to the ON position

5 V

M+ (M4-5) - GND (M5-1)

L - W-B

Voice guidance signal

Voice guidance is provided

A waveform synchronized with sounds is output

M- (M4-6) - GND (M5-1)

P - W-B

Voice guidance signal

Voice guidance is provided

A waveform synchronized with sounds is output

N.C (M4-8) - GND (M5-1)

LG - W-B

Telephone relation switch signal

Always

Below 1 V

TX+ (M4-9) - GND (M5-1)

O - W-B

AVC-LAN communication signal

Turn ignition switch to the ON position

2 to 3 V

TX- (M4-10) - GND (M5-1)

SB - W-B

AVC-LAN communication signal

Turn ignition switch to the ON position

2 to 3 V

SGND (M4-21) - GND (M5-1)

Shielded - W-B

Signal ground

Always

Below 1 V

MCO+ (M4-22) - GND (M5-1)

BR - W-B

Microphone voice signal

See "Microphone & Voice Recognition Check" (See NAVIGATION CHECK MODE )

MCO- (M4-23) - GND (M5-1)

Y - W-B

Microphone voice signal

See "Microphone & Voice Recognition Check" (See NAVIGATION CHECK MODE )

SLD (M4-24) - GND (M5-1)

Shielded - W-B

Shielded ground

Always

Below 1 V

IVO+ (M4-25) - GND (M5-1)

SB - W-B

Voice guidance signal

Voice guidance is provided

A waveform synchronized with sounds is output

IVO- (M4-26) - GND (M5-1)

V - W-B

Voice guidance signal

Voice guidance is provided

A waveform synchronized with sounds is output

V+ (M4-27) - CGND (M4-30)

W-R

Television camera image signal

Turn ignition switch to the ON position, shift lever in R position

Pulse generation (Refer to awaveform 1)

V- (M4-28) - CGND (M4-30)

Shielded - R

Shielded ground

Always

Below 1 V

CA+ (M4-29) - GND (M5-1)

B - W-B

Television camera power supply

Turn ignition switch to the ON position, shift lever in R position

Approx. 6 V

CGND (M4-30) - Body ground

R - Body ground

Ground

Always

Below 1 V

W+ (M3-1) - GND (M5-1)

R - W-B

DVD image signal

DVD is played

Pulse generation (Refer to bwaveform 2)

TX4+ (M3-3) - GND (M5-1)

B - W-B

AVC-LAN communication signal

Turn ignition switch to the ON position

2 to 3 V

W- (M3-4) - GND (M5-1)

G - W-B

Signal ground

Always

Below 1 V

SGND (M3-5) - Body ground

Shielded - Body ground

Shielded ground

Always

Below 1 V

TX4- (M3-6) - GND (M5-1)

W - W-B

AVC-LAN communication signal

Turn ignition switch to the ON position

2 to 3 V

HSY (M7-1) - GND (M5-1)

P - W-B

Security indicator signal

Insert ignition key

Below 1 V

HSY (M7-1) - GND (M5-1)

P - W-B

Security indicator signal

Remove key from ignition key cylinder

Pulse generation

HILL (M7-5) - GND (M5-1)

B - W-B

Illumination signal

Turn light control switch OFF

Below 1 V

HILL (M7-5) - GND (M5-1)

B - W-B

Illumination signal

Turn light control switch ON

10 to 14 V

GVIF+ (M13-1) - GVG (M13-3)

B - B

Digital image signal

Navigation display is on

Pulse generation

GVIF- (M13-2) - GVG (M13-3)

B - B

Digital image signal

Navigation display is on

Pulse generation

GVG (M13-3) - Body ground

B - Body ground

Ground

Always

Below 1 V

⁽¹⁾	with Rear Seat Entertainment System

Reference: waveform 1
HINT:
- Terminal: V+ - CGND
- Gauge set: 0.2 V/DIV., 0.2 μs/DIV.
- Condition: Ignition switch: ON, shift lever: R position
  
  Fig 2: Identifying Waveform 1
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Reference: waveform 2
HINT:
- Terminal: W+ - Body ground
- Gauge set: 200 mV/DIV, 10 μs/DIV.
- Condition: DVD is played on multi-display
  
  Fig 3: Identifying Waveform 2
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NAVIGATION ECU

Fig 4: Identifying Navigation ECU Connector Terminals

NAVIGATION ECU TERMINAL REFERENCE TABLE

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specification
+B (N3-1) - GND1 (N3-15)	SB - W-B	Battery	Always	10 to 14 V
SPD (N3-4) - GND1 (N3-15)	BR - W-B	Speed signal	See "Vehicle Sensors" (See NAVIGATION CHECK MODE )	-
SLD1 (N3-7) - GND1 (N3-15)	Shielded - W-B	Shielded ground	Always	Below 1 V
VOI-(N3-8) - GND1 (N3-15)	G - W-B	Voice guidance signal	Voice guidance is provided	A waveform synchronized with sounds is output
VOI+ (N3-9) - GND1 (N3-15)	R - W-B	Voice guidance signal	Voice guidance is provided	A waveform synchronized with sounds is output
ACC (N3-13) - GND1 (N3-15)	P - W-B	Accessory (ON)	Turn ignition switch off	Below 1 V
ACC (N3-13) - GND1 (N3-15)	P - W-B	Accessory (ON)	Turn ignition switch to the ACC position	10 to 14 V
GND1 (N3-15) - Body ground	W-B - Body ground	Ground	Always	Below 1 V
TX- (N3-18) - GND1 (N3-15)	P - W-B	AVC-LAN communication signal	Turn ignition switch to the ACC position	2 to 3 V
TX+ (N3-19) - GND1 (N3-15)	L - W-B	AVC-LAN communication	Turn ignition switch to the ACC position	2 to 3 V
REV (N3-20) - GND1 (N3-15)	V - W-B	Reverse signal	See "Vehicle Sensors" (See NAVIGATION CHECK MODE )	-
MIC+ (N6-3) - GND1 (N3-15)	BR - W-B	Microphone voice signal	See "Microphone & Voice Recognition Check" (See NAVIGATION CHECK MODE )	-
MIC- (N6-5) - GND1 (N3-15)	Y - W-B	Microphone voice signal	See "Microphone & Voice Recognition Check" (See NAVIGATION CHECK MODE )	-
GVI+ (N8-1) - GND2 (N8-3)	B - B	Digital image signal	Navigation display is on	Pulse generation
GVI- (N8-2) - GND2 (N8-3)	B - B	Digital image signal	Navigation display is on	Pulse generation
GND2 (N8-3) - Body ground	B - Body ground	Ground	Always	Below 1 V

GATEWAY ECU

Fig 5: Identifying Gateway ECU Connector Terminals

GATEWAY ECU TERMINAL REFERENCE TABLE

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specification
IG (G3-1) - GND (G3-24)	G - W-B	Ignition (ON)	Turn ignition switch off	Below 1 V
IG (G3-1) - GND (G3-24)	G - W-B	Ignition (ON)	Turn ignition switch to the ON position	10 to 14 V
ACC (G3-2) - GND (G3-24)	L - W-B	Accessory (ON)	Turn ignition switch off	Below 1 V
ACC (G3-2) - GND (G3-24)	L - W-B	Accessory (ON)	Turn ignition switch to the ACC position	10 to 14 V
GTX- (G3-21) - GND (G3-24)	B - W-B	AVC-LAN communication signal	Turn ignition switch to the ACC position	2 to 3 V
GTX+ (G3-6) - GND (G3-24)	R - W-B	AVC-LAN communication signal	Turn ignition switch to the ACC position	2 to 3 V
BATT (G3-10) - GND (G3-24)	Y - W-B	Battery	Always	10 to 14 V
GND (G3-24) - Body ground	W-B - Body ground	Ground	Always	Below 1 V

RADIO RECEIVER (See TERMINALS OF ECU )
STEREO COMPONENT AMPLIFIER (See TERMINALS OF ECU )
TELEVISION DISPLAY ASSEMBLY (with Rear Seat Entertainment System) (See TERMINALS OF ECU )