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VEHICLE PROXIMITY NOTIFICATION SYSTEM TERMINALS OF ECU

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  1. A0005YUN01

    CHECK VEHICLE APPROACHING SPEAKER CONTROLLER


    1. Disconnect the H216 vehicle approaching speaker controller connector.

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      H216-1 (IG) - Body ground P - Body ground IG power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      H216-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the H216 vehicle approaching speaker controller connector.

    4. Measure the voltage and check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      H216-2 (STP) - H216-7 (GND) R - W-B Stop light signal input Power switch off, brake pedal depressed 8 V or higher
      Power switch off, brake pedal released Below 1 V
      H216-3 (SP+) - H216-8 (SP-) LG - P Vehicle approaching speaker output Vehicle approaching speaker operating

      A waveform synchronized with the sound is output

      (See Waveform 1)
      H216-5 (SW) - H216-7 (GND) L - W-B Vehicle approaching speaker switch signal input Power switch on (IG), vehicle approaching speaker switch pressed 6 V or higher
      Power switch on (IG), vehicle approaching speaker switch not pressed Below 1 V
      H216-6 (SPD) - H216-7 (GND) W - W-B Speed signal input Power switch on (IG), wheel being rotated

      Pulse generation

      (See Waveform 2)
      H216-9 (PRST) - H216-7 (GND) GR - W-B SIL communication system Power switch on (IG), during transmission

      Pulse generation

      (See Waveform 3)
      H216-10 (IND) - H216-7 (GND) L - W-B Warning signal output Power switch on (IG), vehicle proximity notification system is normal 11 to 14 V
      Power switch on (IG), vehicle proximity notification system malfunctioning Below 1.8 V
      H216-11 (SFTP) - H216-7 (GND) R - W-B Transmission shift main switch signal input Power switch on (IG), shift lever in P Below 2.5 V
      Power switch on (IG), shift lever not in P 8 V or higher
      H216-12 (OPSW) - H216-7 (GND) B - W-B Engine oil pressure switch signal input Idling* 8 V or higher
      Power switch on (IG) Below 2 V

      *: Put the engine in inspection mode (Click here).


      1. A0007IS

        Waveform 1

        Item Condition
        Tester Connection H216-3 (SP+) - H216-8 (SP-)
        Tool setting 1 V/DIV., 200 ms./DIV.
        Vehicle condition Vehicle approaching speaker operating
      2. A00046RN09

        Waveform 2

        Item Condition
        Tester Connection H216-6 (SPD) - H216-7 (GND)
        Tool setting 5 V/DIV., 20 ms./DIV.
        Vehicle condition Power switch on (IG), wheel being rotated
        Tip:

        When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.

      3. A0004RMN04

        Waveform 3

        Item Condition
        Tester Connection H216-9 (PRST) - H216-7 (GND)
        Tool setting 5 V/DIV., 10 ms./DIV.
        Vehicle condition Power switch on (IG), during transmission