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Terminals Of Ecu

  1. RADIO RECEIVER (10 SPEAKER SYSTEM) 
    Fig 1: Identifying Radio Receiver Connector Terminals (10 Speaker System)
    G05557310Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    RADIO RECEIVER (10 SPEAKER SYSTEM)

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    B (R1-1) - GND (R1-20) L-Y - BR Battery Always 10 to 14 V
    ILL+ (R1-2) - GND (R1-20) G - BR Illumination signal Light control switch OFF → TAIL Below 1V → 10 to 14 V
    ATX+ (R1-5) - GND (R1-20) B - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    MUTE (R1-7) - GND (R1-20) W-R - BR MUTE signal Audio system is playing → Changing Above 3.5 V → Below 1 V
    R+ (R1-8) - GND (R1-20) B - BR Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
    L+ (R1-9) - GND (R1-20) R - BR Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
    SLD (R1-10) - Body ground Shielded - Body ground Shield ground Always Below 1 V
    ACC (R1-11) - GND (R1-20) GR - BR Accessory (ON) Turn ignition switch to ACC 10 to 14 V
    ILL- (R1-12) - GND (R1-20) W-G - BR Illumination (rheostat) signal Light control switch OFF → TAIL Below 1 V → Pulse generation
    ANT (R1-13) - GND (R1-20) B - BR Power source of antenna Radio switch ON and AM or FM 10 to 14 V
    ATX- (R1-15) - GND (R1-20) W - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    R- (R1-18) - GND (R1-20) W - BR Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
    L- (R1-19) - GND (R1-20) G - BR Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
    GND (R1-20) - Body ground BR - Body ground Ground Always Below 1 V
    SWG (R5-6) - GND (R1-20) W-R - BR Steering pad switch ground Always Below 1 V
    SW1 (R5-7) - GND (R1-20) V-W - BR Steering pad switch signal Steering pad switch not operated 4 V or more
    → SEEK+ switch pushed → Approx. 0.5 V
    → SEEK- switch pushed → Approx. 0.9 V
    → VOL+ switch pushed → Approx. 2.0 V
    → VOL- switch pushed → Approx. 3,4 V
    SW2 (R5-8) - GND (R1-20) Y - B - BR Steering pad switch signal Steering pad switch not operated → MODE switch pushed 4 V or more → Below 2.5 V
    ARI (R5-15) - GND (R1-20) G - BR Sound signal (Right) External device is playing (When stereo jack is used) A waveform synchronized with sounds is output
    ASGN (R5-16) - GND (R1-20) Shielded - BR Shield ground Always Below 1 V
    ALI (R5-17) - GND (R1-20) R - BR Sound signal (Left) External device is playing (When stereo jack is used) A waveform synchronized with sounds is output
    AUXI (R5-19) - GND (R1-20) L - BR External device connection detection signal External device is connected Below 1 V
    CSLD (R4-1) - Body ground ((1)) Shielded - Body ground Shielded ground Always Below 1 V
    CDR+ (R4-2) - GND (R1-20) ((1)) B - BR Sound signal from RSE RSE system is playing A waveform synchronized with sounds is output
    CDR- (R4-3) - GND (R1-20) ((1)) W - BR Sound signal from RSE RSE system is playing A waveform synchronized with sounds is output
    CDL+ (R4-4) - GND (R1-20) ((1)) R - BR Sound signal from RSE RSE system is playing A waveform synchronized with sounds is output
    CDL- (R4-5) - GND (R1-20) ((1)) G - BR Sound signal from RSE RSE system is playing A waveform synchronized with sounds is output
    MUTE (R4-6) - GND (R1-20) ((1)) V - BR MUTE signal from RSE RSE system is playing → changing Above 3.5 V → Below 1 V
    TXM+ (R4-9) - GND (R1-20) ((1)) R - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    TXM- (R4-10) - GND (R1-20) ((1)) G - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    (1) with Rear Seat Entertainment System
  2. RADIO RECEIVER (6 SPEAKER SYSTEM) 
    Fig 2: Identifying Radio Receiver Connector Terminals (6 Speaker System)
    G04966644Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    RADIO RECEIVER (6 SPEAKER SYSTEM)

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    FR+ (R2-1) - GND (R2-7) LG - BR Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
    FL+ (R2-2) - GND (R2-7) P - BR Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
    ACC (R2-3) - GND (R2-7) GR - BR Accessory (ON) Turn ignition switch OFF → ACC Below 1 V → 10 to 14 V
    +B (R2-4) - GND (R2-7) L-Y - BR Battery Always 10 to 14 V
    FR- (R2-5) - GND (R2-7) L - BR Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
    FL- (R2-6) - GND (R2-7) V - BR Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
    GND (R2-7) - Body ground BR - Body ground Ground Always Below 1 V
    ANT (R2-8) - GND (R2-7) B - BR Power source of antenna Radio switch ON and AM or FM 10 to 14 V
    ILL+ (R2-10) - GND (R2-7) G - BR Illumination signal Light control switch OFF → TAIL or HEAD Below 1 V → 10 to 14 V
    RR+ (R3-1) - GND (R2-7) R - BR Sound signal (Rear Right) Audio system is playing A waveform synchronized with sounds is output
    RL+ (R3-2) - GND (R2-7) B - BR Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
    RR- (R3-3) - GND (R2-7) W - BR Sound signal (Rear Right) Audio system is playing A waveform synchronized with sounds is output
    ILL- (R3-5) - GND (R2-7) W-G - BR Illumination (rheostat) signal Light control switch OFF → TAIL or HEAD Below 1 V → Pulse generation
    RL- (R3-6) - GND (R2-7) Y - BR Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
    SPD (R5-3) - GND (R2-7) V-R - BR Speed signal from combination meter Turn ignition switch to ON. Turn drive wheels slowly. Pulse generation
    SWG (R5-6) - GND (R2-7) W-R - BR Steering pad switch ground Always Below 1 V
    SW1 (R5-7) - GND (R2-7) V-W - BR Steering pad switch signal Steering pad switch not operated 4 V or more
    → SEEK+ switch pushed → Approx. 0.5 V
    → SEEK- switch pushed → Approx. 0.9 V
    → VOL+ switch pushed → Approx. 2.0 V
    → VOL- switch pushed → Approx. 3.4 V
    SW2 (R5-8) - GND (R2-7) Y - B - BR Steering pad switch signal Steering pad switch not operated → MODE switch pushed 4 V or more → Below 2.5 V
    ARI (R5-15) - GND (R2-7) G - BR Sound signal (Right) External device is playing (When stereo jack is used) A waveform synchronized with sounds is output
    ASGN (R5-16) - GND (R2-7) Shielded - BR Shield ground Always Below 1 V
    ALI (R5-17) - GND (R2-7) R - BR Sound signal (Left) External device is playing (When stereo jack is used) A waveform synchronized with sounds is output
    AUXI (R5-19) - GND (R2-7) L - BR External device connection detection signal External device is connected Below 1 V
    CSLD (R4-1) - Body ground ((1)) Shielded - Body ground Shield ground Always Below 1 V
    CDR+ (R4-2) - GND (R2-7) ((1)) B - BR Sound signal from RSE RSE system is playing A waveform synchronized with sounds is output
    CDR- (R4-3) - GND (R2-7) ((1)) W - BR Sound signal from RSE RSE system is playing A waveform synchronized with sounds is output
    CDL+ (R4-4) - GND (R2-7) ((1)) R - BR Sound signal from RSE RSE system is playing A waveform synchronized with sounds is output
    CDL- (R4-5) - GND (R2-7) ((1)) G - BR Sound signal from RSE RSE system is playing A waveform synchronized with sounds is output
    MUTE (R4-6) - GND (R2-7) ((1)) V - BR MUTE signal from RSE RSE system is playing → changing Above 3.5 V → Below 1 V
    TXM+ (R4-9) - GND (R2-7) ((1)) R - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    TXM- (R4-10) - GND (R2-7) ((1)) G - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    (1) with Rear Seat Entertainment System
  3. STEREO COMPONENT AMPLIFIER 
    Fig 3: Identifying Stereo Component Amplifier Connector Terminals
    G04966645Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    STEREO COMPONENT AMPLIFIER

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    MUTE (S22-1) - GND2 (S23-15) W-R - BR Mute signal from radio receiver Audio system is playing → Changing Above 3.5 V → Below 1 V
    L- (S22-2) - GND2 (S23-15) G - BR Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
    L+ (S22-3) - GND2 (S23-15) R - BR Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
    R- (S22-4) - GND2 (S23-15) W - BR Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
    R+ (S22-5) - GND2 (S23-15) B - BR Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
    SLD (S22-6) - Body ground Shielded - Body ground Shielded ground Always Below 1 V
    TX- (S22-7) - GND2 (S23-15) W - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    TX+ (S22-8) - GND2 (S23-15) B - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    SPD (S22-11) - GND2 (S23-15) V-R - BR Speed signal from combination meter Turn ignition switch to ON. Turn drive wheels slowly. Pulse generation
    ACC (S22-12) - GND2 (S23-15) GR - BR Accessory (ON) Turn ignition switch OFF → ACC Below 1 V → 10 to 14 V
    +B (S23-1) - GND2 (S23-15) W-L - BR Battery Always 10 to 14 V
    DRS+ (S23-2) - GND2 (S23-15) G-W - BR Sound signal (Rear No. 2 Speaker) Audio system is playing A waveform synchronized with sounds is output
    CTR+ (S23-3) - GND2 (S23-15) G - BR Sound signal (Front Center) Audio system is playing A waveform synchronized with sounds is output
    RL+ (S23-4) - GND2 (S23-15) B - BR Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
    RR+ (S23-5) - GND2 (S23-15) R - BR Sound signal (Rear Right) Audio system is playing A waveform synchronized with sounds is output
    FL+ (S23-6) - GND2 (S23-15) P - BR Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
    FR+ (S23-7) - GND2 (S23-15) LG - BR Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
    WFL+ (S23-8) - GND2 (S23-15) BR - BR Sound signal (Woofer Box) Audio system is playing A waveform synchronized with sounds is output
    WFR+ (S23-9) - GND2 (S23-15) L-B - BR Sound signal (Woofer Box) Audio system is playing A waveform synchronized with sounds is output
    +B2 (S23-10) - GND2 (S23-15) W-L - BR Battery Always A waveform synchronized with sounds is output
    DRS- (S23-11) - GND2 (S23-15) BR - BR Sound signal (Rear No. 2 Speaker) Audio system is playing 10 to 14 V
    CTR- (S23-12) - GND2 (S23-15) G-B - BR Sound signal (Front Center) Audio system is playing A waveform synchronized with sounds is output
    RL- (S23-13) - GND2 (S23-15) Y - BR Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
    RR- (S23-14) - GND2 (S23-15) W - BR Sound signal (Rear Right) Audio system is playing A waveform synchronized with sounds is output
    GND2 (S23-15) - Body ground BR - Body ground Ground Always Below 1 V
    GND (S23-16) - Body ground BR - Body ground Ground Always Below 1 V
    FL- (S23-17) - GND2 (S23-15) V - BR Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
    FR- (S23-18) - GND2 (S23-15) L - BR Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
    WFL- (S23-19) - GND2 (S23-15) G-W - BR Sound signal (Woofer Box) Audio system is playing A waveform synchronized with sounds is output
    WFR- (S23-20) - GND2 (S23-15) L-R - BR Sound signal (Woofer Box) Audio system is playing A waveform synchronized with sounds is output
  4. TELEVISION DISPLAY ASSEMBLY (See  TERMINALS OF ECU   ) 
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