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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 AND NAVIGATION ASSEMBLY 
    Fig 1: Identifying Radio And Navigation Assembly Connector Terminals
    G04387643Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    RADIO AND NAVIGATION ASSEMBLY CONNECTOR TERMINALS VOLTAGE SPECIFICATIONS

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    SPD (R5-3) - GND (R7-20) V-W - BR Speed signal from combination meter See "Vehicle Signal Check Mode" (See DISPLAY CHECK MODE  ) -
    REV (R5-5) - GND (R7-20) R-B - BR Reverse signal from combination meter See "Vehicle Signal Check Mode" (See DISPLAY CHECK MODE  ) -
    SWG (R6-6) - Body ground Y ((1), P-L (2) - Body ground Steering pad switch ground Always Below 1V
    SW1 (R6-7) - SWG (R6-6) LG-B - Y (1)
    P-B - P-L (2)
    Steering pad switch signal Steering pad switch not operated --> SEEK+ switch pushed
    -->SEEK- switch pushed
    -->VOL+ switch pushed
    -->VOL- switch pushed
    4 V or more
    --> Approx. 0.5 V
    --> Approx. 0.9 V
    --> Approx. 2.0 V
    --> Approx. 3.4 V
    SW2 (R6-8) - SWG (R6-6) L - Y (1)
    P-B - P-L (2)
    Steering pad switch signal Steering pad switch not operated --> MODE switch pushed 4 V or more
    --> Below 2.5 V
    IVO+ (R6-11) - SLD1 (R6-13) V - BR Voice guidance signal Voice guidance -
    IVO- (R6-12) - SLD1 (R6-13) LG - BR Voice guidance signal Voice guidance -
    SLD1 (R6-13) - Body ground BR - Body ground Voice sound signal shielded ground Always Below 1.0 V
    B (R7-1) - GND (R7-20) L-Y - BR Battery Always 10 to 14 V
    ILL+ (R7-2) - GND (R7-20) G - BR Illumination signal Turn ignition switch ON
    Light control switch OFF --> TAIL or ON
    Below 1.0 V --> 10 to 14 V
    ATX+ (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 -
    L+ (R7-9) - GND (R7-20) G - BR Sound signal (Left) Audio system is playing -
    SLD (R7-10) - Body ground Shielded - Body ground Shielded ground Always Below 1 V
    ACC (R7-11) - GND (R7-20) GR (1), G-R (2) - BR Accessory (ON) Turn ignition switch OFF
    --> ACC or ON
    Below 1 V --> 10 to 14 V
    ILL- (R7-12) - GND (R7-20) W-G - BR Illumination signal Turn ignition switch ON
    Light control switch OFF --> TAIL or ON
    Below 1.0 V --> 10 to 14 V
    ANT (R7-13) - GND (R7-20) B-R - BR Power source of antenna Radio switch ON and AM or FM 10 to 14 V
    ATX- (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 -
    L- (R7-19) - GND (R7-20) R - BR Sound signal (Left) Audio system is playing -
    GND (R7-20) - Body ground BR - Body ground Ground Always Below 1 V
    (1) Coupe
    (2) Convertible
  2. STEREO COMPONENT AMPLIFIER ASSEMBLY 
    Fig 2: Identifying Stereo Component Amplifier Assembly Connector Terminals
    G04387644Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    STEREO COMPONENT AMPLIFIER ASSEMBLY CONNECTOR TERMINALS VOLTAGE SPECIFICATIONS

    Symbols (Terminal No.) 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 -
    WF2+ (S10-2) (3) - GND (S10-16) G-W (3) - BR Sound signal (Woofer Box) Audio system is playing -
    TWR+ (S10-3) (1) - GND (S10-16) L-B (1) - BR Sound signal (Front Right) Audio system is playing -
    WF1+ (S10-3) (3) - GND (S10-16) L-R (3) - BR Sound signal (Woofer Box) Audio system is playing -
    RL+ (S10-4) - GND (S10-16) B - BR Sound signal (Rear Left) Audio system is playing -
    RR+ (S10-5) - GND (S10-16) R - BR Sound signal (Rear Right) Audio system is playing -
    FL+ (S10-6) - GND (S10-16) P - BR Sound signal (Front Left) Audio system is playing -
    FR+ (S10-7) - GND (S10-16) LG - BR Sound signal (Front Right) Audio system is playing -
    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 -
    WF2- (S10-11) (3) - GND (S10-16) BR (3) - BR Sound signal (Woofer Box) Audio system is playing -
    TWR- (S10-12) (1) - GND (S10-16) L-R (1) - BR Sound signal (Front Right) Audio system is playing -
    WF1- (S10-12) (3) - GND (S10-16) L-B (3) - BR Sound signal (Woofer Box) Audio system is playing -
    RL- (S10-13) - GND (S10-16) Y - BR Sound signal (Rear Left) Audio system is playing -
    RR- (S10-14) - GND (S10-16) W - BR Sound signal (Rear Right) Audio system is playing -
    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 -
    FR- (S10-18) - GND (S10-16) L - BR Sound signal (Front Right) Audio system is playing -
    MUTE (S11-1) - GND (S10-16) BR-B (1), L (2) - BR Mute signal from radio receiver Audio system is playing 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 -
    L+ (S11-3) - GND (S10-16) G - BR Sound signal from radio receiver (Left) Audio system is playing -
    R- (S11-4) - GND (S10-16) B (1), W (2) - BR Sound signal from radio receiver (Right) Audio system is playing -
    R+ (S11-5) - GND (S10-16) W (1), B (2) - BR Sound signal from radio receiver (Right) Audio system is playing -
    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 Ω
    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
    INT- (S11-22) - Body ground LG - Body ground Voice guidance signal Voice guidance -
    INT+ (S11-23) - Body ground V - Body ground Voice guidance signal Voice guidance -
    (1) Coupe
    (2) Convertible
    (3) Convertible (only w/woofer box speaker assembly No.1)