AUDIO AND VISUAL SYSTEM TERMINALS OF ECU

Tech Tips

Check from the rear of the connector while it is connected to the components.


  1. RADIO AND DISPLAY RECEIVER ASSEMBLY

    A003M4YN08
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    I97-1 (FR+) - I97-7 (GND1) LA-LG - LA-BR Sound signal (Front right) Audio system playing A waveform synchronized with sound signals is output
    I97-2 (FL+) - I97-7 (GND1) LA-P - LA-BR Sound signal (Front left) Audio system playing A waveform synchronized with sound signals is output
    I97-3 (ACC1) - I97-7 (GND1) GR - LA-BR Power source (ACC) Power switch off Below 1 V
    Power switch on (ACC) 11 to 14 V
    I97-4 (+B1) - I97-7 (GND1) SB - LA-BR Power source (+B) Power switch off 11 to 14 V
    I97-5 (FR-) - I97-7 (GND1) LA-L - LA-BR Sound signal (Front right) Audio system playing A waveform synchronized with sound signals is output
    I97-6 (FL-) - I97-7 (GND1) LA-V - LA-BR Sound signal (Front left) Audio system playing A waveform synchronized with sound signals is output
    I97-7 (GND1) - Body ground LA-BR - Body ground Ground Always Below 1 V
    I97-10 (ILL+) - I97-7 (GND1) G - LA-BR Illumination signal Light control switch in off position Below 1 V

    Power switch off

    Light control switch in tail or head position

    		 11 to 14 V
    I98-1 (RR+) - I97-7 (GND1) R - LA-BR Sound signal (Rear right) Audio system playing A waveform synchronized with sound signals is output
    I98-2 (RL+) - I97-7 (GND1) B - LA-BR Sound signal (Rear left) Audio system playing A waveform synchronized with sound signals is output
    I98-3 (RR-) - I97-7 (GND1) W - LA-BR Sound signal (Rear right) Audio system playing A waveform synchronized with sound signals is output
    I98-5 (ILL-) - I97-7 (GND1) W - LA-BR Illumination signal Light control switch in off position Below 1 V

    Light control switch in tail or head position

    Power switch off

    		 Pulse generation
    I98-6 (RL-) - I97-7 (GND1) Y - LA-BR Sound signal (Rear left) Audio system playing A waveform synchronized with sound signals is output
    I96-1 (IG) - I97-7 (GND1) SB - LA-BR Power source (IG) Power switch off Below 1 V
    Power switch on (IG) 11 to 14 V
    I96-2 (REV) - I97-7 (GND1) G - LA-BR Reverse signal

    See "Check Vehicle Signal" in Operation Check

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    		-
    I96-4 (MACC) - I97-7 (GND1) R - LA-BR Microphone power supply Power switch off Below 1 V
    Power switch on (ACC) 4 to 6 V
    I96-5 (MIN+) - I97-7 (GND1) B - LA-BR Microphone voice signal

    See "Check Microphone" in Operation Check

    Click here

    		-
    I96-6 (SNS2) - I97-7 (GND1) GR - LA-BR Microphone connection detection signal Always Below 1 V
    I96-9 (CANH) L CAN communication signal - -
    I96-10 (CANL) W CAN communication signal - -
    I96-11 (AGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    I96-15 (PKB) - I97-7 (GND1) B - LA-BR Parking brake signal

    See "Check Vehicle Signal" in Operation Check

    Click here

    		-
    I96-17 (SPD) - I97-7 (GND1) LG - LA-BR Vehicle speed signal

    See "Check Vehicle Signal" in Operation Check

    Click here

    		-
    I96-18 (SGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    I96-19 (MIN-) - I97-7 (GND1) W - LA-BR Microphone voice signal

    See "Check Microphone" in Operation Check

    Click here

    		-
    I96-21 (SW1) - I96-23 (SWG) G - B Steering pad switch signal No switch pushed 2.97 to 3.56 V
    Seek+ switch pushed 0.27 to 0.35 V
    Seek- switch pushed 0.86 to 1.03 V
    Volume+ switch pushed 1.51 to 1.79 V
    Volume- switch pushed 2.22 to 2.66 V
    I96-22 (SW2) - I96-23 (SWG) W - B Steering pad switch signal No switch pushed 2.97 to 3.56 V
    MODE switch pushed 0.27 to 0.35 V
    On hook switch pushed 0.86 to 1.03 V
    Off hook switch pushed 1.51 to 1.79 V
    Voice switch pushed 2.22 to 2.66 V
    I96-23 (SWG) - I97-7 (GND1) B - LA-BR Steering pad switch ground Always Below 1 V
    I96-25 (ADPG) - I97-7 (GND1) BE - LA-BR External device connection detection signal External device connected Below 1 V
    External device not connected 2.1 to 3 V
    I96-26 (VAR+) - I96-27 (VA-) R - B Sound signal (Right) External device playing (When stereo jack used) A waveform synchronized with sound signals is output
    I96-27 (VA-) - I97-7 (GND1) B - LA-BR Ground Always Below 1 V
    I96-28 (VAL+) - I96-27 (VA-) W - B Sound signal (Left) External device playing (When stereo jack used) A waveform synchronized with sound signals is output
    I99-3 (CNH1) G Local bus communication signal - -
    I99-4 (CNL1) L Local bus communication signal - -
    I100-1 (USV1) - Power source - -
    I100-2 (US1-) - Data signal - -
    I100-3 (US1+) - Data signal - -
    I100-4 (UGD1) - Ground - -
    I100-5 (USG1) - Shield ground - -
    RA-5 (ANT+) - I97-7 (GND1) - - LA-BR Power source of antenna

    Power switch on (ACC)

    Radio switch on and FM or AM selected

    		 11 to 14 V

  2. METER CIRCUIT PLATE

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  3. COMBINATION METER MIRROR ECU

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