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Terminals Of Ecu

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
  1. RADIO RECEIVER 
    Fig 1: Identifying Radio Receiver Terminals
    G05753285Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    VOLTAGE SPECIFICATION

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    J66-1 (B) - J66-20 (GND) G - W-B Battery Always 11 to 14 V
    J66-2 (ILL+) - J66-20 (GND) G - W-B Illumination signal Light control switch OFF Below 1 V
    J66-2 (ILL+) - J66-20 (GND) G - W-B Illumination signal Light control switch TAIL 11 to 14 V
    J66-5 (ATX+) - J66-15 (ATX-) V - P AVC-LAN communication signal Engine switch on (ACC) 2 to 3 V
    J66-7 (MUTE) - J66-20 (GND) BR - W-B Mute signal Audio system is playing Above 3 5 V
    J66-7 (MUTE) - J66-20 (GND) BR - W-B Mute signal Audio system is changing Below 1 V
    J66-8 (R+) - J66-20 (GND) R - W-B Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
    J66-9 (L+) - J66-20 (GND) B - W-B Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
    J66-10 (SLD) - Body ground Shielded - Body ground Shielded ground Always Below 1 V
    J66-11 (ACC) - J66-20 (GND) O - W-B Accessory (ON) Engine switch off Below 1 V
    J66-11 (ACC) - J66-20 (GND) O - W-B Accessory (ON) Engine switch on (ACC) 11 to 14 V
    J66-12 (ILL-) - J66-20 (GND) W - W-B Illumination signal Light control switch OFF Below 1 V
    J66-12 (ILL-) - J66-20 (GND) W - W-B Illumination signal Light control switch TAIL 11 to 14 V
    J66-13 (ANT) - J66-20 (GND) Y - W-B Power source of antenna Radio switch ON and AM or FM 11 to 14 V
    J66-18 (R-) - J66-20 (GND) G - W-B Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
    J66-19 (L-) - J66-20 (GND) W - W-B Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
    J66-20 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
    J63-6 (SWG) - J66-20 (GND) GR - W-B Steering pad switch ground Always Below 1 V
    J63-7 (SW1) - J66-20 (GND) SB - W-B Steering pad switch signal Steering pad switch not operated 4 5 to 5 5 V
    J63-7 (SW1) - J66-20 (GND) SB - W-B Steering pad switch signal SEEK+ switch pushed Below 0 5V
    J63-7 (SW1) - J66-20 (GND) SB - W-B Steering pad switch signal SEEK- switch pushed 0 86 to 0 95 V
    J63-7 (SW1) - J66-20 (GND) SB - W-B Steering pad switch signal VOL+ switch pushed 1 91 to 2 01 V
    J63-7 (SW1) - J66-20 (GND) SB - W-B Steering pad switch signal VOL- switch pushed 3 23 to 3 57 V
    J63-8 (SW2) - J66-20 (GND) L - W-B Steering pad switch signal Steering pad switch not operated 4 5 to 5 5 V
    J63-8 (SW2) - J66-20 (GND) L - W-B Steering pad switch signal MODE switch pushed Below 0 5V
    J63-8 (SW2) - J66-20 (GND)(1) L - W-B Steering pad switch signal ON HOOK switch pushed 0 86 to 0 95 V
    J63-8 (SW2) - J66-20 (GND)(1) L - W-B Steering pad switch signal OFF HOOK switch pushed 1 91 to 2 01 V
    J63-8 (SW2) - J66-20 (GND)(1) L - W-B Steering pad switch signal VOICE switch pushed 3 23 to 3 57 V
    J63-9 (TX+) - J63-10 (TX-)(4) SB - O AVC-LAN communication signal Engine switch on (ACC) 2 to 3 V
    J63-9 (TX+) - J63-10 (TX-)(1) P - LG AVC-LAN communication signal Engine switch on (ACC) 2 to 3 V
    J63-15 (ARI) - J66-20 (GND)(2) R - W-B Sound signal (Right) External device is playing (When stereo jack adapter is used) A waveform synchronized with sounds is output
    J63-16 (ASGN) - J66-20 (GND)(2) B - W-B Ground Always Below 1 V
    J63-17 (ALI) - J66-20 (GND)(2) W - W-B Sound signal (Left) External device is playing (When stereo jack adapter is used) A waveform synchronized with sounds is output
    J63-19 (AUXI) - J66-20 (GND)(2) L - W-B External device connection detection signal External device is connected Below 1 V
    J61-2 (ARI) - J66-20 (GND)(3) R - W-B Sound signal (Right) External device is playing (When stereo jack adapter is used) A waveform synchronized with sounds is output
    J61-5 (ASGN) - J66-20 (GND)(3) B - W-B Ground Always Below 1 V
    J61-3 (ALI) - J66-20 (GND)(3) W - W-B Sound signal (Left) External device is playing (When stereo jack adapter is used) A waveform synchronized with sounds is output
    J61-6 (AUXI) - J66-20 (GND)(3) L - W-B External device connection detection signal External device is connected Below 1 V
    J62-1 (NTSC) - J66-20 (GND)(1), (3) R - W-B DVD image signal DVD played on multi-display Pulse generation Refer to  awaveform 1
    J62-2 (GND) - Body ground(1), (3) G - Body ground Ground Always Below 1 V
    J62-3 (SLD) - Body ground(1), (3) Shielded - Body ground Shielded - Body ground Always Below 1 V
    J65-9 (TXM+) - J65-10 (TXM-)(4) BR - R AVC-LAN communication signal Engine switch on (ACC) 2 to 3 V
    s1-1 (DVD) - J66-20 (GND)(3) B - W-B Digital sound signal DVD played on multi-display Pulse generation
    (1) w/ Navigation System
    (2) w/o DVD Player
    (3) w/ DVD Player
    (4) w/o Navigation System
    1. Reference: waveform 1

      HINT.

      • Terminal. J62-1 (NTSC) - Body ground
      • Setting. 200 mV/DIV, 10 μs/DIV
      • Condition: DVD display is ON.
        Fig 2: Waveform Graph
        G04945286Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INTEGRATION CONTROL & PANEL ASSEMBLY 
    Fig 3: Identifying Integration Control & Panel Assembly Terminals
    G05753287Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    VOLTAGE SPECIFICATION

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    J54-1 (TX-) - J54-2 (TX+) R - BR AVC-LAN communication signal Engine switch on (ACC) 2 to 3 V
    J54-4 (IG+) - J54-8 (E) B - W-B Ignition switch (ON) Engine switch on (IG) 11 to 14 V
    J54-4 (IG+) - J54-8 (E) B - W-B Ignition switch (OFF) Engine switch off Below 1 V
    J54-5 (ACC) - J54-8 (E) O - W-B Accessory (OFF) Engine switch off Below 1 V
    J54-5 (ACC) - J54-8 (E) O - W-B Accessory (ON) Engine switch on (ACC) 11 to 14 V
    J54-8 (E) - Body ground W-B - Body ground Ground Always Below 1 V
    J54-14 (B) - J54-8 (E) LG - W-B Battery Always 11 to 14 V
  3. STEREO COMPONENT AMPLIFIER 
    Fig 4: Identifying Stereo Component Amplifier Terminals
    G05753288Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL DESCRIPTION AND SPECIFIED CONDITION

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    P27-1 (+B) - P27-2 (GND) R - W-B Battery Always 11 to 14V
    P27-2 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
    P27-3 (+B2) - P27-2 (GND) O - W-B Battery Always 11 to 14 V
    P27-6 (GND2) - Body ground W-B - Body ground Ground Always Below 1 V
    P28-1 (WF1+) - P27-2 (GND) BR - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-2 (WF2+) - P27-2 (GND)(1) P - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-2 (SR+) - P27-2 (GND)(2) SB - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-3 (MR+) - P27-2 (GND)(1) B-W - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-3 (CTR+) - P27-2 (GND)(2) Y - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-4 (WFL+) - P27-2 (GND) W - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-5 (WF1-) - P27-2 (GND) LG - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-6 (WF2-) - P27-2 (GND)(1) SB - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-6 (SR-) - P27-2 (GND)(2) R - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-7 (ML-) - P27-2 (GND)(1) L - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-7 (SL-) - P27-2 (GND)(2) L - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-8 (ML+) - P27-2 (GND)(1) LG - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-8 (SL+) - P27-2 (GND)(2) LG - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-9 (MR-) - P27-2 (GND)(1) R - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-9 (CTR-) - P27-2 (GND)(2) B - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P28-10 (WFL-) - P27-2 (GND) R - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P29-1 (WFR+) - P27-2 (GND) BR - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P29-2 (FL+) - P27-2 (GND) SB - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P29-3 (RL+) - P27-2 (GND) P - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P29-4 (RR+) - P27-2 (GND) R - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P29-5 (WFR-) - P27-2 (GND) P - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P29-6 (FL-) - P27-2 (GND) O - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P29-7 (FR-) - P27-2 (GND) GR - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P29-8 (FR+) - P27-2 (GND) B - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P29-9 (RL-) - P27-2 (GND) V - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P29-10 (RR-) - P27-2 (GND) W - W-B Sound signal Audio system is playing A waveform synchronized with sounds is output
    P30-1 (MUTE) - P27-2 (GND) SB - W-B Mute signal Audio system is playing 3 5 to 5 5 V
    P30-1 (MUTE) - P27-2 (GND) SB - W-B Mute signal Audio system is changing Below 1 V
    P30-2 (L-) - P27-2 (GND) W - W-B Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
    P30-3 (L+) - P27-2 (GND) B - W-B Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
    P30-4 (R-) - P27-2 (GND) G - W-B Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
    P30-5 (R+) - P27-2 (GND) R - W-B Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
    P30-6 (SLD) - Body ground Shielded - Body ground Shielded ground Always Below 1 V
    P30-7 (TX-) - P30-8 (TX+) V - O AVC-LAN communication signal Engine switch on (ACC) 2 to 3 V
    P30-11 (SPD) - P27-2 (GND) L - W-B Speed signal Engine switch on (IG), drive wheels are turned slowly Pulse generation
    P30-12 (ACC) - P27-2 (GND) O - W-B Accessory (ON) Engine switch off Below 1 V
    P30-12 (ACC) - P27-2 (GND) O - W-B Accessory (ON) Engine switch on (ACC) 11 to 14 V
    P30-14 (II1-) - P27-2 (GND)(3) BR - W-B Voice guidance signal Voice guidance is provided A waveform synchronized with sounds is output
    P30-15 (II1+) - P27-2 (GND)(3) Y - W-B Voice guidance signal Voice guidance is provided A waveform synchronized with sounds is output
    t1-1 (DVD) - P27-2 (GND)(4) B - W-B Digital sound signal DVD played on multi-display Pulse generation
    (1) w/o Front Center Speaker
    (2) w/ Front Center Speaker
    (3) w/ Navigation System
    (4) w/ DVD Player
  4. GATEWAY ECU  (See TERMINALS OF ECU )