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Terminals Of Ecu

  1. RADIO RECEIVER (SEPARATE TYPE AMPLIFIER) 
    Fig 1: Identifying Radio Receiver Connector Terminals (Separate Type Amplifier)
    G05196137Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    RADIO RECEIVER (SEPARATE TYPE AMPLIFIER)

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    +B (R19-1) - GND (R19-20) L-W - BR Battery Always 10 to 14 V
    ILL+ (R19-2) - GND (R19-20) G - BR Illumination (rheostat) signal Light control switch OFF → TAIL or HEAD (Light intensity is max.) Below 1 V → 10 to 14 V
    TX+ (R19-5) - GND (R19-20) P - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    MUTE (R19-7) - GND (R19-20) W - BR MUTE signal Audio system is playing → changing Above 3.5 V → Below 1 V
    R+ (R19-8) - GND (R19-20) R - BR Sound signal (Right) Audio system is playing A wave form synchronized with sounds is output
    L+ (R19-9) - GND (R19-20) B - BR Sound signal (Left) Audio system is playing A wave form synchronized with sounds is output
    SLD (R19-10) - Body ground Shielded - Body ground Shield ground Always Below 1 V
    ACC (R19-11) - GND (R19-20) GR - BR Accessory (ON) Turn ignition switch OFF → ACC Below 1 V → 10 to 14 V
    ILL- (R19-12) - GND (R19-20) W-B - BR Illumination (rheostat) signal Light control switch OFF → TAIL or HEAD (Light intensity is not max. or min.) Below 1 V → Pulse generation
    ANT (R19-13) - GND (R19-20) B - BR Power source of antenna Radio switch ON and AM or FM 10 to 14 V
    TX- (R19-15) - GND (R19-20) V - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    R- (R19-18) - GND (R19-20) W - BR Sound signal (Right) Audio system is playing A wave form synchronized with sounds is output
    L- (R19-19) - GND (R19-20) G - BR Sound signal (Left) Audio system is playing A wave form synchronized with sounds is output
    GND (R19-20) - Body ground BR - Body ground Ground Always Below 1 V
  2. RADIO RECEIVER (BUILT-IN TYPE AMPLIFIER) 
    Fig 2: Identifying Radio Receiver Connector Terminals (Built-In Type Amplifier)
    G05196138Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    RADIO RECEIVER (BUILT-IN TYPE AMPLIFIER)

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    FR+ (R3-1) - GND (R3-7) LG - BR Sound signal (Front Right) Audio system is playing A wave form synchronized with sounds is output
    FL+ (R3-2) - GND (R3-7) P - BR Sound signal (Front Left) Audio system is playing A wave form synchronized with sounds is output
    ACC (R3-3) - GND (R3-7) GR - BR Accessory (ON) Turn ignition switch OFF → ACC Below 1 V → 10 to 14 V
    +B (R3-4) - GND (R3-7) L-W - BR Battery Always 10 to 14 V
    FR- (R3-5) - GND (R3-7) L - BR Sound signal (Front Right) Audio system is playing A wave form synchronized with sounds is output
    FL- (R3-6) - GND (R3-7) V - BR Sound signal (Front Left) Audio system is playing A wave form 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 - 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 (Light intensity is max.) Below 1V → 10 to 14 V
    RR+ (R4-1) - GND (R3-7) R - BR Sound signal (Rear Right) Audio system is playing A wave form synchronized with sounds is output
    RL+ (R4-2) - GND (R3-7) B - BR Sound signal (Rear Left) Audio system is playing A wave form synchronized with sounds is output
    RR- (R4-3) - GND (R3-7) W - BR Sound signal (Rear Right) Audio system is playing A wave form synchronized with sounds is output
    ILL- (R4-5) - GND (R3-7) W-B - BR Illumination (rheostat) signal Light control switch OFF → TAIL HEAD (Light intensity is not max. min.) Below 1 V → Pulse generation
    RL- (R4-6) - GND (R3-7) Y - BR Sound signal (Rear Left) Audio system is playing A wave form synchronized with sounds is output
  3. STEREO COMPONENT AMPLIFIER 
Fig 3: Identifying Stereo Component Amplifier Connector Terminals
G05196139Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
STEREO COMPONENT AMPLIFIER

Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
B+ (S15-1) - GND (S15-15) L-R - W-B Battery Always 10 to 14 V
TWL+ (S15-2) - GND (S15-15) R-W - W-B Sound signal (Front Left) Audio system is playing A wave form synchronized with sounds is output
TWR+ (S15-3) - GND (S15-15) G-W - W-B Sound signal (Front Right) Audio system is playing A wave form synchronized with sounds is output
RL+ (S15-4) - GND (S15-15) B - W-B Sound signal (Rear Left) Audio system is playing A wave form synchronized with sounds is output
RR+ (S15-5) - GND (S15-15) R - W-B Sound signal (Rear Right) Audio system is playing A wave form synchronized with sounds is output
FL+ (S15-6) - GND (S15-15) P - W-B Sound signal (Front Left) Audio system is playing A wave form synchronized with sounds is output
FR+ (S15-7) - GND (S15-15) LG - W-B Sound signal (Front Right) Audio system is playing A wave form synchronized with sounds is output
B2+ (S15-10) - GND (S15-15) L-R - W-B Battery Always 10 to 14 V
TWL- (S15-11) - GND (S15-15) L-W - W-B Sound signal (Front Left) Audio system is playing A wave form synchronized with sounds is output
TWR- (S15-12) - GND (S15-15) BR - W-B Sound signal (Front Right) Audio system is playing A wave form synchronized with sounds is output
RL- (S15-13) - GND (S15-15) Y - W-B Sound signal (Rear Left) Audio system is playing A wave form synchronized with sounds is output
RR- (S15-14) - GND (S15-15) W - W-B Sound signal (Rear Right) Audio system is playing A wave form synchronized with sounds is output
GND (S15-15) - Body ground W-B - Body ground Ground Always Below 1 V
GND2 (S15-16) - Body ground W-B - Body ground Ground Always Below 1 V
FL- (S15-17) - GND (S15-15) V - W-B Sound signal (Front Left) Audio system is playing A wave form synchronized with sounds is output
FR- (S15-18) - GND (S15-15) L - W-B Sound signal (Front Right) Audio system is playing A wave form synchronized with sounds is output
MUTE (S16-1)- GND (S15-15) W - W-B Mute signal from radio receiver Audio system is playing → changing Above 3.5 V → Below 3.5 V
L- (S16-2) - GND (S15-15) G - W-B Sound signal from radio receiver (Left) Audio system is playing A wave form synchronized with sounds is output
L+ (S16-3) - GND (S15-15) B - W-B Sound signal from radio receiver (Left) Audio system is playing A wave form synchronized with sounds is output
R- (S16-4) - GND (S15-15) W - W-B Sound signal from radio receiver (Right) Audio system is playing A wave form synchronized with sounds is output
R+ (S16-5) - GND (S15-15) R - W-B Sound signal from radio receiver (Right) Audio system is playing A wave form synchronized with sounds is output
ACC (S16-12) - GND (S15-15) GR - W-B Accessory (ON) Turn ignition switch OFF → ACC Below 1 V → 10 to 14 V
TX- (S16-19) - GND (S15-15) V - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
TX+ (S16-20) - GND (S15-15) P - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
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