Lexus IS250 IS220d GSE20 ALE20 - AUDIO / VISUAL
AUDIO AND VISUAL SYSTEM - TERMINALS OF ECU
| RADIO RECEIVER |
*1: with Navigation System
*2: for CD Changer Models
*3: for DVD Changer Models
*4: without Navigation System
| Symbols (Terminal No.) | Wiring Color | Terminal Description | Condition | Specification |
| B (J66-1) - GND (J66-20) | G - W-B | Battery | Always | 10 to 14 V |
| ILL+ (J66-2) - GND (J66-20) | G - W-B | Illumination signal | Light control switch OFF | Below 1 V |
| ILL+ (J66-2) - GND (J66-20) | G - W-B | Illumination signal | Light control switch TAIL | 10 to 14 V |
| ATX+ (J66-5) - GND(J66-20) | V - W-B | AVC-LAN communication signal | Turn engine switch on (ACC) | 2 to 3 V |
| MUTE (J66-7) - GND (J66-20) | BR - W-B | Mute signal | Audio system is playing | Above 3.5 V |
| MUTE (J66-7) - GND (J66-20) | BR - W-B | Mute signal | Audio system is changing | Below 1 V |
| R+ (J66-8) - GND (J66-20) | R - W-B | Sound signal (Right) | Audio system is playing | A waveform synchronized with sounds is output |
| L+ (J66-9) - GND (J66-20) | B - W-B | Sound signal (Left) | Audio system is playing | A waveform synchronized with sounds is output |
| SLD (J66-10) - Body ground | Shielded - Body ground | Shielded ground | Always | Below 1 V |
| ACC (J66-11) - GND (J66-20) | O - W-B | Accessory (ON) | Turn engine switch off | Below 1 V |
| ACC (J66-11) - GND (J66-20) | O - W-B | Accessory (ON) | Turn engine switch on (ACC) | 10 to 14 V |
| ILL- (J66-12) - GND (J66-20) | W - W-B | Illumination signal | Light control switch OFF | Below 1 V |
| ILL- (J66-12) - GND (J66-20) | W - W-B | Illumination signal | Light control switch TAIL | 10 to 14 V |
| ANT (J66-13) - GND (J66-20) | Y - W-B | Power source of antenna | Radio switch ON and AM or FM | 10 to 14 V |
| ATX- (J66-15) - GND (J66-20) | P - W-B | AVC-LAN communication signal | Turn engine switch on (ACC) | 2 to 3 V |
| R- (J66-18) - GND (J66-20) | G - W-B | Sound signal (Right) | Audio system is playing | A waveform synchronized with sounds is output |
| L- (J66-19) - GND (J66-20) | W - W-B | Sound signal (Left) | Audio system is playing | A waveform synchronized with sounds is output |
| GND (J66-20) - Body ground | W-B - Body ground | Ground | Always | Below 1 V |
| CMP+ (J63-4) - CMP- (J63-5) (*1) | B - W | RDS-TMC signal | RDS-TMC function is ON | Pulse generation (100 mVrms +-5dB) |
| SWG (J63-6) - GND (J66-20) | GR - W-B | Steering pad switch ground | Always | Below 1 V |
| SW1 (J63-7) - GND (J66-20) | SB - W-B | Steering pad switch signal | Steering pad switch not operated | 4 V or more |
| SW1 (J63-7) - GND (J66-20) | SB - W-B | Steering pad switch signal | SEEK+ switch pushed | Approx. 0.5 V |
| SW1 (J63-7) - GND (J66-20) | SB - W-B | Steering pad switch signal | SEEK- switch pushed | Approx. 0.9 V |
| SW1 (J63-7) - GND (J66-20) | SB - W-B | Steering pad switch signal | VOL+ switch pushed | Approx. 2.0 V |
| SW1 (J63-7) - GND (J66-20) | SB - W-B | Steering pad switch signal | VOL- switch pushed | Approx. 3.4 V |
| SW2 (J63-8) - GND (J66-20) | L - W-B | Steering pad switch signal | Steering pad switch not operated | 4 V or more |
| SW2 (J63-8) - GND (J66-20) | L - W-B | Steering pad switch signal | MODE switch pushed | Approx. 0.5 V |
| SW2 (J63-8) - GND (J66-20) (*1) | L - W-B | Steering pad switch signal | ON HOOK switch pushed | Approx. 0.9 V |
| SW2 (J63-8) - GND (J66-20) (*1) | L - W-B | Steering pad switch signal | OFF HOOK switch pushed | Approx. 2.0 V |
| SW2 (J63-8) - GND (J66-20) (*1) | L - W-B | Steering pad switch signal | VOICE switch pushed | Approx. 3.4 V |
| TX+ (J63-9) - GND (J66-20) (*4) | SB - W-B | AVC-LAN communication signal | Turn engine switch on (ACC) | 2 to 3 V |
| TX- (J63-10) - GND (J66-20) (*4) | O - W-B | AVC-LAN communication signal | Turn engine switch on (ACC) | 2 to 3 V |
| TX+ (J63-9) - GND (J66-20) (*1) | P - W-B | AVC-LAN communication signal | Turn engine switch on (ACC) | 2 to 3 V |
| TX- (J63-10) - GND (J66-20) (*1) | LG - W-B | AVC-LAN communication signal | Turn engine switch on (ACC) | 2 to 3 V |
| ARI (J63-15) - GND (J66-20) (*2) | R - W-B | Sound signal (Right) | External device is playing (When stereo jack adapter is used) | A waveform synchronized with sounds is output |
| ASGN (J63-16) - GND (J66-20) (*2) | B - W-B | Ground | Always | Below 1 V |
| ALI (J63-17) - GND (J66-20) (*2) | G - W-B | Sound signal (Left) | External device is playing (When stereo jack adapter is used) | A waveform synchronized with sounds is output |
| AUXI (J63-19) - GND (J66-20) (*2) | L - W-B | External device connection detection signal | External device is connected | Below 1 V |
| ARI (J61-2) - GND (J66-20) (*3) | R - W-B | Sound signal (Right) | External device is playing (When stereo jack adapter is used) | A waveform synchronized with sounds is output |
| ASGN (J61-5) - GND (J66-20) (*3) | B - W-B | Ground | Always | Below 1 V |
| ALI (J61-3) - GND (J66-20) (*3) | G - W-B | Sound signal (Left) | External device is playing (When stereo jack adapter is used) | A waveform synchronized with sounds is output |
| AUXI (J61-6) - GND (J66-20) (*3) | L - W-B | External device connection detection signal | External device is connected | Below 1 V |
| NTSC (J62-1) - GND (J66-20) (*1, *3) | R - W-B | DVD image signal | DVD played on multi-display | Pulse generation Refer to waveform 1 |
| GND (J62-2) - Body ground (*1, *3) | G - Body ground | Ground | Always | Below 1 V |
| SLD (J62-3) - Body ground (*1, *3) | Shielded - Body ground | Shielded - Body ground | Always | Below 1 V |
| TXM+ (J65-9) - GND (J66-20) (*4) | BR - W-B | AVC-LAN communication signal | Turn engine switch on (ACC) | 2 to 3 V |
| TXM- (J65-10) - GND (J66-20) (*4) | R - W-B | AVC-LAN communication signal | Turn engine switch on (ACC) | 2 to 3 V |
| DVD (s1-1) - GND (J66-20) (*3) | B - W-B | Digital sound signal | DVD played on multi-display | Pulse generation |
Reference: waveform 1
- HINT:
Terminal: NTSC - Body ground
Setting: 200 mV/DIV, 10 μs/DIV
Condition: DVD display is ON.
| INTEGRATION CONTROL & PANEL ASSEMBLY (WITHOUT NAVIGATION SYSTEM) |
| Symbols (Terminal No.) | Wiring Color | Terminal Description | Condition | Specification |
| TX- (J54-1) - E (J54-8) | R - W-B | AVC-LAN communication signal | Turn engine switch on (ACC) | 2 to 3 V |
| TX+ (J54-2) - E (J54-8) | BR - W-B | AVC-LAN communication signal | Turn engine switch on (ACC) | 2 to 3 V |
| IG+ (J54-4) - E (J54-8) | B - W-B | Ignition switch (ON) | Turn engine switch on (IG) | 10 to 14 V |
| IG+ (J54-4) - E (J54-8) | B - W-B | Ignition switch (OFF) | Turn engine switch off | Below 1 V |
| ACC (J54-5) - E (J54-8) | O - W-B | Accessory (OFF) | Turn engine switch off | Below 1 V |
| ACC (J54-5) - E (J54-8) | O - W-B | Accessory (ON) | Turn engine switch on (ACC) | 10 to 14 V |
| E (J54-8) - Body ground | W-B - Body ground | Ground | Always | Below 1 V |
| B (J54-14) - E (J54-8) | LG - W-B | Battery | Always | 10 to 14 V |
| STEREO COMPONENT AMPLIFIER |
*1: without Front Center Speaker
*2: with Front Center Speaker
*3: with Navigation System
*4: for DVD Changer Models
| Symbols (Terminal No.) | Wiring Color | Terminal Description | Condition | Specification |
| +B (P27-1) - GND (P27-2) | R - W-B | Battery | Always | 10 to 14 V |
| GND (P27-2) - Body ground | W-B - Body ground | Ground | Always | Below 1 V |
| +B2 (P27-3) - GND (P27-2) | O - W-B | Battery | Always | 10 to 14 V |
| GND2 (P27-6) - Body ground | W-B - Body ground | Ground | Always | Below 1 V |
| WF1+ (P28-1) - GND (P27-2) | BR - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| WF2+ (P28-2) - GND (P27-2) (*1) | P - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| SR+ (P28-2) - GND (P27-2) (*2) | SB - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| MR+ (P28-3) - GND (P27-2) (*1) | SB - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| CTR+ (P28-3) - GND (P27-2) (*2) | Y - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| WFL+ (P28-4) - GND (P27-2) | W - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| WF1- (P28-5) - GND (P27-2) | LG - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| WF2- (P28-6) - GND (P27-2) (*1) | SB - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| SR- (P28-6) - GND (P27-2) (*2) | R - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| ML- (P28-7) - GND (P27-2) (*1) | L - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| SL- (P28-7) - GND (P27-2) (*2) | L - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| ML+ (P28-8) - GND (P27-2) (*1) | LG - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| SL+ (P28-8) - GND (P27-2) (*2) | LG - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| MR- (P28-9) - GND (P27-2) (*1) | R - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| CTR- (P28-9) - GND (P27-2) (*2) | B - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| WFL- (P28-10) - GND (P27-2) | R - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| WFR+ (P29-1) - GND (P27-2) | BR - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| FL+ (P29-2) - GND (P27-2) | SB - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| RL+ (P29-3) - GND (P27-2) | P - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| RR+ (P29-4) - GND (P27-2) | R - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| WFR- (P29-5) - GND (P27-2) | P - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| FL- (P29-6) - GND (P27-2) | O - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| FR- (P29-7) - GND (P27-2) | GR - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| FR+ (P29-8) - GND (P27-2) | B - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| RL- (P29-9) - GND (P27-2) | V - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| RR- (P29-10) - GND (P27-2) | W - W-B | Sound signal | Audio system is playing | A waveform synchronized with sounds is output |
| MUTE (P30-1) - GND (P27-2) | SB - W-B | Mute signal | Audio system is playing | Above 3.5 V |
| MUTE (P30-1) - GND (P27-2) | SB - W-B | Mute signal | Audio system is changing | Below 1 V |
| L- (P30-2) - GND (P27-2) | W - W-B | Sound signal (Left) | Audio system is playing | A waveform synchronized with sounds is output |
| L+ (P30-3) - GND (P27-2) | B - W-B | Sound signal (Left) | Audio system is playing | A waveform synchronized with sounds is output |
| R- (P30-4) - GND (P27-2) | G - W-B | Sound signal (Right) | Audio system is playing | A waveform synchronized with sounds is output |
| R+ (P30-5) - GND (P27-2) | R - W-B | Sound signal (Right) | Audio system is playing | A waveform synchronized with sounds is output |
| SLD (P30-6) - Body ground | Shielded - Body ground | Shielded ground | Always | Below 1 V |
| TX- (P30-7) - GND (P27-2) | V - W-B | AVC-LAN communication signal | Turn engine switch on (ACC) | 2 to 3 V |
| TX+ (P30-8) - GND (P27-2) | O - W-B | AVC-LAN communication signal | Turn engine switch on (ACC) | 2 to 3 V |
| SPD (P30-11) - GND (P27-2) | L - W-B | Speed signal | Turn engine switch on (IG), drive wheels are turned slowly | Pulse generation |
| ACC (P30-12) - GND (P27-2) | O - W-B | Accessory (ON) | Turn engine switch off | Below 1 V |
| ACC (P30-12) - GND (P27-2) | O - W-B | Accessory (ON) | Turn engine switch on (ACC) | 10 to 14 V |
| II1- (P30-14) - GND (P27-2) (*3) | BR - W-B | Voice guidance signal | Voice guidance is provided | A waveform synchronized with sounds is output |
| II1+ (P30-15) - GND (P27-2) (*3) | Y - W-B | Voice guidance signal | Voice guidance is provided | A waveform synchronized with sounds is output |
| DVD (t1-1) - GND (P27-2) (*4) | B - W-B | Digital sound signal | DVD played on multi-display | Pulse generation |
| GATEWAY ECU |
LEXUS IS250, IS220d / GSE20 ALE20