VEHICLE PROXIMITY NOTIFICATION SYSTEM TERMINALS OF ECU


  1. CHECK VEHICLE APPROACHING SPEAKER CONTROLLER

    A01O8RME17

    1. Disconnect the A67 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
      A67-1 (IG) - Body ground L - Body ground IG power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      A67-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the A67 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
      A67-2 (STP) - A67-7 (GND) B - 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
      A67-3 (SP+) - A67-8 (SP-) GR - LG Vehicle approaching speaker output Vehicle approaching speaker operating A waveform synchronized with the sound is output.
      A67-5 (SW) - A67-7 (GND) SB - W-B No. 2 combination switch assembly (vehicle approaching speaker switch) signal Power switch on (IG), No. 2 combination switch assembly (vehicle approaching speaker switch) on 6 V or higher
      Power switch on (IG), No. 2 combination switch assembly (vehicle approaching speaker switch) off Below 1 V
      A67-6 (SPD) - A67-7 (GND) V - W-B Speed signal input Driving at approximately 20 km/h (12 mph)

      Pulse generation

      (See Waveform 1)
      A67-9 (PRST) - A67-7 (GND) R - W-B SIL communication signal Power switch on (IG), during transmission

      Pulse generation

      (See Waveform 2)
      A67-10 (IND) - A67-7 (GND) W - W-B No. 2 combination switch assembly (vehicle approaching speaker switch) indicator signal Power switch on (IG), No. 2 combination switch assembly (vehicle approaching speaker switch) on Below 2.8 V
      Power switch on (IG), No. 2 combination switch assembly (vehicle approaching speaker switch) off 11 to 14 V
      A67-11 (KOK) - A67-7 (GND) V - W-B Permission signal Power switch on (READY), shift lever in P Below 2.3 V
      Power switch on (READY), engine stopped and shift lever not in P 8 V or higher

      1. A01O86CN04

        Waveform 1

        Item Condition
        Tester Connection A67-6 (SPD) - A67-7 (GND)
        Tool Setting 5 V/DIV, 20 ms./DIV
        Vehicle Condition Driving at approximately 20 km/h (12 mph)

        Tech Tips

        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.

      2. A01O8Q9N02

        Waveform 2

        Item Condition
        Tester Connection A67-9 (PRST) - A67-7 (GND)
        Tool Setting 5 V/DIV, 10 ms./DIV
        Vehicle Condition Power switch on (IG), during transmission

  2. CHECK HYBRID VEHICLE CONTROL ECU

    B002HBHN01

    1. Disconnect the A60, I115 and I116 hybrid vehicle control ECU connectors.

    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
      I116-3 (BATT) - I115-6 (E1) R - W-B Power supply Power switch off 11 to 14 V
      A60-3 (IG2) - I115-6 (E1) B - W-B IG power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      I115-6 (E1) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the A60, I115 and I116 hybrid vehicle control ECU connectors.

    4. Measure the voltage according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I115-7 (KOK) - I115-6 (E1) V - W-B Permission signal Power switch on (READY), shift lever in P Below 2.3 V
      Power switch on (READY), engine stopped and shift lever not in P 8 V or higher