AUDIO AND VISUAL SYSTEM (for Radio Receiver Type) TERMINALS OF ECU


  1. CHECK RADIO RECEIVER ASSEMBLY

    A01IQI9E04
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H1-1 (FR+) - H1-7 (E) LG - BR Sound signal (Front right) Audio system playing Waveform synchronized with sound is output
    H1-2 (FL+) - H1-7 (E) P - BR Sound signal (Front left) Audio system playing Waveform synchronized with sound is output
    H1-3 (ACC) - H1-7 (E) GR - BR Accessory (On) Ignition switch off → ACC Below 1 V → 11 to 14 V
    H1-4 (B) - H1-7 (E) SB - BR Battery Always 11 to 14 V
    H1-5 (FR-) - H1-7 (E) L - BR Sound signal (Front right) Audio system playing Waveform synchronized with sound is output
    H1-6 (FL-) - H1-7 (E) V - BR Sound signal (Front left) Audio system playing Waveform synchronized with sound is output
    H1-7 (E) - Body ground BR - Body ground Ground Always Below 1 V
    H1-8 (ANT) - H1-7 (E)*2 BE - BR Power source of antenna Radio switch on and AM or FM radio on 11 to 14 V
    H1-10 (ILL+) - H1-7 (E) G - BR Illumination signal Light control switch off → TAIL or HEAD Below 1 V → 11 to 14 V
    H2-1 (RR+) - H1-7 (E) R - BR Sound signal (Rear right) Audio system playing Waveform synchronized with sound is output
    H2-2 (RL+) - H1-7 (E) Y - BR Sound signal (Rear left) Audio system playing Waveform synchronized with sound is output
    H2-3 (RR-) - H1-7 (E) W - BR Sound signal (Rear right) Audio system playing Waveform synchronized with sound is output
    H2-6 (RL-) - H1-7 (E) B - BR Sound signal (Rear left) Audio system playing Waveform synchronized with sound is output
    H25-3 (SPD) - H1-7 (E) V - BR Speed signal from combination meter

    Ignition switch ON,

    drive wheels turned slowly

    		 Pulse generation
    H25-6 (SWG) - H1-7 (E)

    W-B - BR*1

    P - BR*2

    		 Steering pad switch ground Always Below 1 V
    H25-7 (SW1) - H1-7 (E) W - BR Steering pad switch signal Steering pad switch not operated 3.1 to 3.5 V
    H25-7 (SW1) - H1-7 (E) W - BR Steering pad switch signal Seek+ switch pushed Below 0.5 V
    H25-7 (SW1) - H1-7 (E) W - BR Steering pad switch signal Seek- switch pushed 0.8 to 1.2 V
    H25-7 (SW1) - H1-7 (E) W - BR Steering pad switch signal Volume+ switch pushed 1.5 to 1.9 V
    H25-7 (SW1) - H1-7 (E) W - BR Steering pad switch signal Volume- switch pushed 2.3 to 2.7 V
    H25-8 (SW2) - H1-7 (E) R - BR Steering pad switch signal Steering pad switch not operated 3.1 to 3.5 V
    H25-8 (SW2) - H1-7 (E) R - BR Steering pad switch signal MODE switch pushed Below 0.5 V
    H25-8 (SW2) - H1-7 (E)*3 R - BR Steering pad switch signal On Hook switch pushed 0.8 to 1.2 V
    H25-8 (SW2) - H1-7 (E)*3 R - BR Steering pad switch signal Off Hook switch pushed 1.5 to 1.9 V
    H25-8 (SW2) - H1-7 (E)*3 R - BR Steering pad switch signal Voice switch pushed 2.3 to 2.7 V
    H25-11 (LRHD) - H1-7 (E)*4 W-B - BR Ground Always Below 1 V
    H25-15 (ARI) - H1-7 (E) W - BR Sound signal (Right) External device playing (When stereo jack used) Waveform synchronized with sound is output
    H25-16 (ASGN) - H1-7 (E) R - BR Ground Always Below 1 V
    H25-17 (ALI) - H1-7 (E) B - BR Sound signal (Left) External device playing (When stereo jack used) Waveform synchronized with sound is output
    H25-18 (AGND) - H1-7 (E) Shielded - BR Shield ground Always Below 1 V
    H25-19 (AUXI) - H1-7 (E) L - BR External device connection detection signal External device connected 1.1 to 1.5 V
    External device not connected 2.0 to 2.4 V
    H39-1 (SNS2) - H1-7 (E)*3 L - BR Microphone connection detection signal Always Below 1 Ω
    H39-2 (MIN+) - H1-7 (E)*3 W - BR Microphone voice signal "Bluetooth" handsfree function on Waveform synchronized with sound is output
    H39-3 (MACC) - H1-7 (E)*3 B - BR Telephone microphone power supply Ignition switch off Below 1 V
    H39-3 (MACC) - H1-7 (E)*3 B - BR Telephone microphone power supply Ignition switch ACC 4.75 to 5.25 V
    H39-5 (MIN-) - H1-7 (E)*3 R - BR Microphone voice signal "Bluetooth" handsfree function on Waveform synchronized with sound is output
    H39-6 (SGND) - H1-7 (E)*3 Shielded - BR Shield ground Always Below 1 V
    H103-1 (CSLD) - Body ground Shielded - Body ground Shield ground Always Below 1 V
    H103-2 (CDR+) - H1-7 (E) G - BR USB sound signal Always Waveform synchronized with sound is output
    H103-3 (CDR-) - H1-7 (E) R - BR USB sound signal USB audio system playing Waveform synchronized with sound is output
    H103-4 (CDL+) - H1-7 (E) W - BR USB sound signal USB audio system playing Waveform synchronized with sound is output
    H103-5 (CDL-) - H1-7 (E) B - BR USB sound signal Always Waveform synchronized with sound is output
    H103-6 (MUTE) - H1-7 (E) G - BR Mute signal Audio system playing Above 3.5 V
    Audio system source changed Below 1 V
    USB audio system playing Above 3.5 V
    USB audio system source changed Below 1 V
    H103-7 (GND) - H1-7 (E) BR - BR Ground Always Below 1 V
    H103-9 (TXM+) V AVC-LAN communication signal - -
    H103-10 (TXM-) P AVC-LAN communication signal - -
    H103-11 (ACC) - H1-7 (E) GR - BR Accessory (ON) Ignition switch off Below 1 V
    Ignition switch ACC 11 to 14 V
    H103-12 (+B) - H1-7 (E) SB - BR Battery Always 11 to 14 V

    • *1: for 4 Speakers

    • *2: for 6 Speakers

    • *3: w/ "Bluetooth" Function

    • *4: for RHD

  2. CHECK MULTI-MEDIA INTERFACE ECU

    A01IRSRE01
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H99-1 (USD1) - Body ground Shielded - Body ground Shield ground Always Below 1 V
    H99-2 (URO+) - H99-7 (GND) G - BR USB audio system sound signal USB audio system playing Waveform synchronized with sound is output
    H99-3 (URO-) - H99-7 (GND) R - BR USB audio system sound signal USB audio system playing Waveform synchronized with sound is output
    H99-4 (ULO+) - H99-7 (GND) W - BR USB audio system sound signal USB audio system playing Waveform synchronized with sound is output
    H99-5 (ULO-) - H99-7 (GND) B - BR USB audio system sound signal USB audio system playing Waveform synchronized with sound is output
    H99-6 (MUT1) - H99-7 (GND) G - BR Mute signal from multi-media interface ECU USB audio system playing → Source changed Above 3.5 V → Below 1 V
    H99-7 (GND) - Body ground BR - Body ground Ground Always Below 1 V
    H99-9 (TX1+) V AVC-LAN communication signal - -
    H99-10 (TX1-) P AVC-LAN communication signal - -
    H99-11 (ACC) - H99-7 (GND) GR - BR Accessory (ON) Ignition switch off Below 1 V
    Ignition switch ACC 11 to 14 V
    H99-12 (+B) - H99-7 (GND) SB - BR Battery Always 11 to 14 V
    W1-1 - Body ground # - Body ground Ground Always Below 1 V
    W1-2 - W1-1 # - # Data signal USB device or "iPod" connected -
    W1-3 - W1-1 # - # Data signal USB device or "iPod" connected -
    W1-4 - W1-1 # - # Battery Always 5 V
    W1-5 - Body ground Shielded - Body ground Shield ground Always Below 1 V

    • #: There is no wire color information.