NAVIGATION SYSTEM - TERMINALS OF ECU

MULTI-DISPLAY

*1: without Parking Assist Monitor System
*2: with Parking Assist Monitor System

Navigation System - Terminals Of Ecu. NAVIGATION. Lexus IS250 IS220d GSE20 ALE20

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specification
+B1 (J50-1) - GND1 (J50-10)	Y - W-B	Battery	Always	10 to 14 V
ACC (J50-2) - GND1 (J50-10)	O - W-B	Accessory (ON)	Turn engine switch off	Below 1 V
ACC (J50-2) - GND1 (J50-10)	O - W-B	Accessory (ON)	Turn engine switch on (ACC or IG)	10 to 14 V
IG (J50-3) - GND1 (J50-10)	B - W-B	Ignition (ON)	Turn engine switch off	Below 1 V
IG (J50-3) - GND1 (J50-10)	B - W-B	Ignition (ON)	Turn engine switch on (IG)	10 to 14 V
TC (J50-7) - GND1 (J50-10)	V - W-B	Diagnosis ON signal	Turn engine switch on (IG)	9 to 14 V
GND1 (J50-10) - Body ground	W-B - Body ground	Ground	Always	Below 1 V
ILL- (J50-11) - GND1 (J50-10)	W - W-B	Illumination signal	Turn light control switch OFF	Below 1 V
ILL- (J50-11) - GND1(J50-10)	W - W-B	Illumination signal	Turn light control switch ON	10 to 14 V
ILL+ (J50-12) - GND1 (J50-10)	G - W-B	Illumination signal	Turn light control switch OFF	Below 1 V
ILL+ (J50-12) - GND1 (J50-10)	G - W-B	Illumination signal	Turn light control switch ON	10 to 14 V
REV (J50-13) - GND1 (J50-10)	L - W-B	Reverse signal	See "Vehicle Signal Check" Mode	-
SPD (J50-14) - GND1 (J50-10)	P - W-B	Speed signal from combination meter	See "Vehicle Signal Check" Mode ( )	-
CMP- (J50-15) - CMP+ (J50-16)	W - B	RDS-TMC signal	RDS-TMC function is ON	Pulse generation (100 mVrms +- 5dB)
SLD (J50-17) - Body ground	Shielded - Body ground	Shielded ground	Always	Below 1 V
PKB (J50-23) - GND1 (J50-10)	R - W-B	Parking brake signal	See "Vehicle Signal Check" Mode	-
TX2- (J51-3) - GND1(J50-10)	LG - W-B	AVC-LAN communication signal	Turn engine switch on (ACC)	2 to 3 V
TX2+ (J51-4) - GND1 (J50-10)	P - W-B	AVC-LAN communication signal	Turn engine switch on (ACC)	2 to 3 V
TSW- (J51-5) - GND1 (J50-10)	W-B - W-B	Telephone relation switch signal	Always	Below 1 V
MACC (J51-9) - GND1 (J50-10)	V - W-B	Microphone AMP power supply	Turn engine switch off	Below 1 V
MACC (J51-9) - GND1 (J50-10)	V - W-B	Microphone AMP power supply	Turn engine switch on (IG)	5 V
MIN- (J51-10) - GND1 (J50-10)	BR - W-B	Microphone voice signal	See "Microphone & Voice Recognition Check"	-
MIN+ (J51-11) - GND1 (J50-10)	Y - W-B	Microphone voice signal	See "Microphone & Voice Recognition Check"	-
SGND (J51-12) - GND1 (J50-10)	W-B - W-B	Signal ground	Always	Below 1 V
TX1- (J51-15) - GND1 (J50-10)	R - W-B	AVC-LAN communication signal	Turn engine switch on (ACC)	2 to 3 V
TX1+ (J51-16) - GND1 (J50-10)	BR - W-B	AVC-LAN communication signal	Turn engine switch on (ACC)	2 to 3 V
TX3- (J51-17) - GND1 (J50-10)	O - W-B	AVC-LAN communication signal	Turn engine switch on (ACC)	2 to 3 V
TX3+ (J51-18) - GND1 (J51-10)	SB - W-B	AVC-LAN communication signal	Turn engine switch on (ACC)	2 to 3 V
IVO- (J51-21) - GND1(J50-10)	BR - W-B	Voice guidance signal	Voice guidance is provided	A waveform synchronized with sounds is output
IVO+ (J51-22) - GND1(J51-10)	Y - W-B	Voice guidance signal	Voice guidance is provided	A waveform synchronized with sounds is output
SLD (J51-23) - GND1 (J50-10)	Shielded - W-B	Shielded ground	Always	Below 1 V
NTSC (J52-1) - GND1 (J50-10)	R - W-B	DVD image signal	DVD is played on radio receiver	Pulse generation (Refer to waveform 2)
SGD1 (J52-4) - GND1 (J50-10)	G - W-B	Signal ground	Always	Below 1 V
SGND (J52-5) - Body ground	Shielded - Body ground	Shielded ground	Always	Below 1 V
TX4- (p1-1) - GND2 (p1-6)	W-B - B	AVC-LAN communication signal	Turn engine switch on (ACC)	2 to 3 V
TX4+ (p1-2) - GND2 (p1-6)	W-R - B	AVC-LAN communication signal	Turn engine switch on (ACC)	2 to 3 V
SGND (p1-3) - GND2 (p1-61)	Shielded - B	Shielded ground	Always	Below 1 V
MCO- (p1-4) - GND2 (p1-6)	L - B	Microphone voice signal	See "Microphone & Voice Recognition Check"	-
MCO+ (p1-5) - GND2 (p1-6)	R - B	Microphone voice signal	See "Microphone & Voice Recognition Check"	-
GND2 (p1-6) - Body ground	B - Body ground	Ground	Always	Below 1 V
ACC2 (p1-7) - GND2 (p1-6)	O - B	Accessory (ON)	Turn engine switch off	Below 1 V
ACC2 (p1-7) - GND2 (p1-6)	O - B	Accessory (ON)	Turn engine switch on (ACC)	10 to 14 V
+B (p1-8) - GND2 (p1-6)	R - B	Battery	Always	10 to 14 V
SI- (p1-10) - GND2 (p1-6)	L - B	Voice guidance signal	Voice guidance is provided	A waveform synchronized with sounds is output
SI+ (p1-11) - GND2 (p1-6)	R - B	Voice guidance signal	Voice guidance is provided	A waveform synchronized with sounds is output
CMO- (p1-12) - CMO+ (p1-13)	L - R	RDS-TMC signal	See "RDS-TMC Information" Mode	-
REV2 (p1-15) - GND2 (p1-6)	GR - B	Reverse signal	See "Vehicle Sensors" Mode	-
SPD2 (p1-16) - GND2 (p1-6)	W - B	Speed signal	See "Vehicle Sensors" Mode	-
GVI+ (q1-1) - GND2 (p1-6) (*1)	-	Digital image signal	Navigation display is on	Pulse generation
GVI- (q1-2) - GND2 (p1-6) (*1)	-	Digital image signal	Navigation display is on	Pulse generation
GVG1 (q1-3) - Body ground (*1)	-	Ground	Always	Below 1 V
GVI+ (w1-1) - GND2 (p1-6) (*2)	-	Digital image signal	Navigation display is on	Pulse generation
GVI- (w1-2) - GND2 (p1-6) (*2)	-	Digital image signal	Navigation display is on	Pulse generation
GVG1 (w1-3) - Body ground (*2)	-	Ground	Always	Below 1 V

Reference: waveform 1

HINT:

Terminal: NTSC - Body ground

Gauge set: 200 mV/DIV., 10 μs/DIV.

Condition: DVD is played on multi-display

NAVIGATION ECU

Navigation System - Terminals Of Ecu. NAVIGATION. Lexus IS250 IS220d GSE20 ALE20

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specification
+B (p2-1) - GND1 (p2-15)	R - B	Battery	Always	10 to 14 V
SPD (p2-4) - GND1 (p2-15)	W - B	Speed signal	See "Vehicle Sensors" Mode	-
SLD1 (p2-7) - GND1 (p2-15)	Shielded - B	Shielded ground	Always	Below 1 V
VOI- (p2-8) - GND1 (p2-15)	L - B	Voice guidance signal	Voice guidance is provided	A waveform synchronized with sounds is output
VOI+ (p2-9) - GND1 (p2-15)	R - B	Voice guidance signal	Voice guidance is provided	A waveform synchronized with sounds is output
CMP- (p2-10) - CMP+ (p2-11)	L - R	RDS-TMC signal	See "RDS-TMC Information" Mode	-
RSG (p2-12) - GND1 (p2-15)	Shielded - B	Shielded ground	Always	Below 1 V
ACC (p2-13) - GND1 (p2-15)	O - B	Accessory (ON)	Turn engine switch off	Below 1 V
ACC (p2-13) - GND1 (p2-15)	O - B	Accessory (ON)	Turn engine switch on (ACC)	10 to 14 V
GND1 (p2-15) - Body ground	B - Body ground	Ground	Always	Below 1 V
TX- (p2-18) - GND1 (p2-15)	W-B - B	AVC-LAN communication signal	Turn engine switch on (ACC)	2 to 3 V
TX+ (p2-19) - GND1 (p2-15)	W-R - B	AVC-LAN communication signal	Turn engine switch on (ACC)	2 to 3 V
REV (p2-20) - GND1 (p2-15)	GR - B	Reverse signal	See "Vehicle Sensors" Mode	-
MIC+ (p3-3) - GND1 (p2-15)	R - B	Microphone voice signal	See "Microphone & Voice Recognition Check"	-
MIC- (p3-5) - GND1 (p2-15)	L - B	Microphone voice signal	See "Microphone & Voice Recognition Check"	-
GVI+ (q1-1) - GND2 (p1-6)	-	Digital image signal	Navigation display is on	Pulse generation
GVI- (q1-2) - GND2 (p1-6)	-	Digital image signal	Navigation display is on	Pulse generation
GVG1 (q1-3) - Body ground	-	Ground	Always	Below 1 V

GATEWAY ECU

Navigation System - Terminals Of Ecu. NAVIGATION. Lexus IS250 IS220d GSE20 ALE20

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specification
IG (J76-1) - GND (J76-24)	B - W-B	Ignition (ON)	Turn engine switch off	Below 1 V
IG (J76-1) - GND (J76-24)	B - W-B	Ignition (ON)	Turn engine switch on (IG)	10 to 14 V
ACC (J76-2) - GND (J76-24)	O - W-B	Accessory (ON)	Turn engine switch off	Below 1 V
ACC (J76-2) - GND (J76-24)	O - W-B	Accessory (ON)	Turn engine switch on (ACC)	10 to 14 V
GTX- (J76-21) - GND (J76-24)	O - W-B	AVC-LAN communication signal	Turn engine switch on (ACC)	2 to 3 V
GTX+ (J76-6) - GND (J76-24)	SB - W-B	AVC-LAN communication signal	Turn engine switch on (ACC)	2 to 3 V
BATT (J76-10) - GND (J76-24)	LG - W-B	Battery	Always	10 to 14 V
GND (J76-24) - Body ground	W-B - Body ground	Ground	Always	Below 1 V

RADIO RECEIVER

STEREO COMPONENT AMPLIFIER

TELEVISION CAMERA ECU

LEXUS IS250, IS220d / GSE20 ALE20

NAVIGATION

Lexus IS250 IS220d GSE20 ALE20

NAVIGATION SYSTEM