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Terminals Of Ecu

WARNING: This page is about a different car, the 2006 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
  1. RADIO RECEIVER ASSEMBLY (SEPARATE TYPE AMPLIFIER) 
    Fig 1: Identifying Terminals Of Radio Receiver Assembly (Separate Type Amplifier)
    G04387514Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    STEREO COMPONENT AMPLIFIER ASSEMBLY VOLTAGE SPECIFICATIONS STEREO COMPONENT AMPLIFIER ASSEMBLY VOLTAGE SPECIFICATIONS

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    B (R7-1) - GND (R7-20) L-Y - BR Battery Always 10 to 14 V
    ILL+ (R7-2) - GND (R7-20) G - BR Illumination (rheostat) signal Light control switch OFF --> TAIL or HEAD Below 1 V --> 10 to 14 V
    TX+ (R7-5) - GND (R7-20) B (1), R (2) - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    MUTE (R7-7) - GND (R7-20) BR-B (1), L (2) - BR MUTE signal Audio system is playing --> changing Above 3.5 V --> Below 1 V
    R+ (R7-8) - GND (R7-20) W (1), B (2) - BR Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
    L+ (R7-9) - GND (R7-20) G - BR Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
    SLD (R7-10) - Body ground Shielded - Body ground Shield ground Always Below 1Ω
    ACC (R7-11) - GND (R7-20) GR (1), G-R (2) - BR Accessory (ON) Turn ignition switch OFF --> ACC 10 to 14 V
    ILL- (R7-12) - GND (R7-20) W-G - BR Illumination (rheostat) signal Light control switch TAIL Below 1 V --> 10 to 14 V
    ANT+B (R7-13) - GND (R7-20) B-R - BR Power source of antenna Radio switch ON and AM or FM 10 to 14 V
    TX- (R7-15) - GND (R7-20) Y (1), W (2) - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    R- (R7-18) - GND (R7-20) B (1), W (2) - BR Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
    L- (R7-19) - GND (R7-20) R - BR Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
    GND (R7-20) - Body ground BR - Body ground Ground Always Below 1V
    GND (R6-6) - GND (R7-20) Y (1), P-L (2) - BR Steering pad switch ground Always Below 1V
    SW1 (R6-7) - GND (R7-20) LG-B (1), P-G (2) - BR Steering pad switch signal Steering pad switch not operated 4V or more
    --> SEEK+ switch pushed --> Approx. 0.5V
    --> SEEK- switch pushed --> Approx. 0.9V
    --> VOL+ switch pushed --> Approx. 2.0V
    --> VOL- switch pushed --> Approx. 3.4V
    SW2 (R6-8) - GND (R7-20) L (1), P-B (2) - BR Steering pad switch signal Steering pad switch not operated --> MODE switch pushed 4V or more --> Below 2.5V

    (1) Coupe

    (2) Convertible

  2. RADIO RECEIVER ASSEMBLY (BUILT-IN TYPE AMPLIFIER) 
    Fig 2: Identifying Terminals Of Radio Receiver Assembly (Built-In Type Amplifier)
    G04387515Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMS MEANING TERMS MEANING

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    GND (R2-6) - Body ground Y (1), P-L (2) - Body ground Steering pad switch ground Always Below 1 V
    SW1 (R2-7) - GND (R3-7) LG-B (1), P-G (2) - 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 (R2-8) - GND (R3-7) L (1), P-B (2) - BR Steering pad switch signal Steering pad switch not operated --> MODE switch pushed 4 V or more --> Approx. 2.5 V
    FR+ (R3-1) - GND (R3-7) LG - BR Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
    FL+ (R3-2) - GND (R3-7) P - BR Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
    ACC (R3-3) - GND (R3-7) GR (1), G-R (2) - BR Accessory (ON) Turn ignition switch OFF --> ACC Below 1 V --> 10 to 14 V
    +B (R3-4) - GND (R3-7) L-Y - BR Battery Always 10 to 14 V
    FR- (R3-5) - GND (R3-7) L - BR Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
    FL- (R3-6) - GND (R3-7) V - BR Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
    GND (R3-7) - Body ground BR - Body ground Ground Always Below 1 V
    ANT+ (R3-8) - GND (R3-7) B-R - BR Power source of antenna Radio switch ON and AM or FM 10 to 14 V
    ILL+ (R3-10) - GND (R3-7) G - BR Illumination (rheostat) signal Light control switch OFF --> TAIL or HEAD Below 1 V --> 10 to 14 V
    RR+ (R4-1) - GND (R3-7) R - BR Sound signal (Rear Right) Audio system is playing A waveform synchronized with sounds is output
    RL+ (R4-2) - GND (R3-7) B - BR Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
    RR- (R4-3) - GND (R3-7) W - BR Sound signal (Rear Right) Audio system is playing A waveform synchronized with sounds is output
    ILL- (R4-5) - GND (R3-7) W-G - BR Illumination (rheostat) signal Light control switch OFF --> TAIL or HEAD Below 1 V --> 10 to 14 V
    RL- (R4-6) - GND (R3-7) Y - BR Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output

    (1) Coupe

    (2) Convertible

  3. STEREO COMPONENT AMPLIFIER ASSEMBLY 
    Fig 3: Identifying Terminals Of Stereo Component Amplifier Assembly
    G04387516Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    CODE NO. (PHYSICAL ADDRESS) LIST CODE NO. (PHYSICAL ADDRESS) LIST

    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specification
    B+ (S10-1) - GND (S10-16) L-R (1), L-Y (2) - BR Battery Always 10 to 14 V
    TWL+ (S10-2) (1) - GND (S10-16) G (1) - BR Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
    WF2+ (S10-2) (3) - GND (S10-16) G-W (3) - BR Sound signal (Woofer Box) Audio system is playing A waveform synchronized with sounds is output
    TWR+ (S10-3) (1) - GND (S10-16) L-B (1) - BR Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
    WF1+ (S10-3) (3) - GND (S10-16) L-R (3) - BR Sound signal (Woofer Box) Audio system is playing A waveform synchronized with sounds is output
    RL+ (S10-4) - GND (S10-16) B - BR Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
    RR+ (S10-5) - GND (S10-16) R - BR Sound signal (Rear Right) Audio system is playing A waveform synchronized with sounds is output
    FL+ (S10-6) - GND (S10-16) P - BR Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
    FR+ (S10-7) - GND (S10-16) LG - BR Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
    B2+ (S10-10) - GND (S10-16) L-R (1), L-Y (2) - BR Battery Always 10 to 14 V
    TWL- (S10-11) (1) - GND (S10-16) G-B (1) - BR Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
    WF2- (S10-11) (3) - GND (S10-16) BR (3) - BR Sound signal (Woofer Box) Audio system is playing A waveform synchronized with sounds is output
    TWR- (S10-12) (1) - GND (S10-16) L-R (1) - BR Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
    WF1- (S10-12) (3) - GND (S10-16) L-B (3) - BR Sound signal (Woofer Box) Audio system is playing A waveform synchronized with sounds is output
    RL- (S10-13) - GND (S10-16) Y - BR Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
    RR- (S10-14) - GND (S10-16) W - BR Sound signal (Rear Right) Audio system is playing A waveform synchronized with sounds is output
    GND2 (S10-15) (1) - Body ground BR - Body ground Ground Always Below 1 V
    E (S10-15) (2) - Body ground BR - Body ground Ground Always Below 1 V
    GND (S10-16) - Body ground BR - Body ground Ground Always Below 1 V
    FL- (S10-17) - GND (S10-16) V - BR Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
    FR- (S10-18) - GND (S10-16) L - BR Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
    MUTE (S11-1) - GND (S10-16) BR-B (1), L (2) - BR Mute signal from radio receiver Audio system is changing Above 3.5 V --> Below 3.5 V
    L- (S11-2) - GND (S10-16) R - BR Sound signal from radio receiver (Left) Audio system is playing A waveform synchronized with sounds is output
    L+ (S11-3) - GND (S10-16) G - BR Sound signal from radio receiver (Left) Audio system is playing A waveform synchronized with sounds is output
    R- (S11-4) - GND (S10-16) B (1), W (2) - BR Sound signal from radio receiver (Right) Audio system is playing A waveform synchronized with sounds is output
    R+ (S11-5) - GND (S10-16) W (1), B (2) - BR Sound signal from radio receiver (Right) Audio system is playing A waveform synchronized with sounds is output
    TX- (S11-7) (1) - GND (S10-16) Y (1) - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    TX+ (S11-8) (1) - GND (S10-16) B (1) - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    TSSW (S11-9) (2) - GND (S10-16) L-W (2) - BR Convertible top open/close signal Convertible top is open Below 1 V
    ACC (S11-12) - GND (S10-16) GR (1), G-R (2) - BR Accessory (ON) Turn ignition switch OFF --> ACC Below 1 V --> 10 to 14 V
    TX- (S11-19) (2) - GND (S10-16) W (2) - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    TX+ (S11-20) (2) - GND (S10-16) R (2) - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V

    (1) Coupe

    (2) Convertible

    (3) Convertible (w/Woofer box speaker assembly No.1)

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