DYNAMIC RADAR CRUISE CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK DRIVING SUPPORT ECU

    A0043HXE31
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    L54-6 (SPSW) - L54-25 (GND) R - W-B

    Steering pad switch signal

    (distance control signal)

    Power switch on (IG)

    Distance control switch off

    		 11 to 14 V
    L54-6 (SPSW) - L54-25 (GND) R - W-B

    Steering pad switch signal

    (distance control signal)

    Power switch on (IG)

    Distance control switch on

    		 Below 2 V
    L54-10 (CCHG) - L54-25 (GND) G - W-B Cruise control switch signal

    Power switch on (IG),

    MODE switch off

    		 11 to 14 V
    L54-10 (CCHG) - L54-25 (GND) G - W-B Cruise control switch signal

    Power switch on (IG),

    MODE switch on

    		 Below 1 V
    L54-17 (CA2L) - L54-25 (GND) W - W-B CAN communication signal Power switch on (IG)

    Pulse generation

    (See waveform 1)
    L54-18 (CA1N) - L54-25 (GND) P - W-B CAN communication signal Power switch on (IG)

    Pulse generation

    (See waveform 1)
    L54-23 (CCS) - L54-25 (GND) V - W-B Cruise control switch signal Power switch on (IG) 1 MΩ or higher
    L54-23 (CCS) - L54-25 (GND) V - W-B Cruise control switch signal CANCEL switch on 1509 to 1571 Ω
    L54-23 (CCS) - L54-25 (GND) V - W-B Cruise control switch signal -/SET switch on 617 to 643 Ω
    L54-23 (CCS) - L54-25 (GND) V - W-B Cruise control switch signal +/RES switch on 235 to 245 Ω
    L54-23 (CCS) - L54-25 (GND) V - W-B Cruise control switch signal Cruise control switch on Below 2.5 Ω
    L54-25 (GND) - Body ground W-B - Body ground Earth (ground circuit of driving support ECU) Always Below 1 Ω
    L54-27 (STP-) - L54-25 (GND) Y - W-B Stop light signal Brake pedal released Below 1 V
    L54-27 (STP-) - L54-25 (GND) Y - W-B Stop light signal Brake pedal depressed 7.5 to 14 V
    L54-28 (ST1-) - L54-25 (GND) R - W-B Stop light signal

    Power switch on (IG),

    Brake pedal released

    		 7.5 to 14 V
    L54-28 (ST1-) - L54-25 (GND) R - W-B Stop light signal

    Power switch on (IG),

    Brake pedal depressed

    		 Below 1 V
    L54-30 (B) - L54-25 (GND) B - W-B Power source Power switch on (IG) 11 to 14 V
    L54-32 (WIP2) - L54-25 (GND) P - W-B Wiper switch signal

    Power switch on (IG),

    Wiper switch off

    		 Below 2 V
    L54-32 (WIP2) - L54-25 (GND) P - W-B Wiper switch signal

    Power switch on (IG),

    Wiper switch HI position

    		 11 to 14 V
    L54-40 (CA1P) - L54-25 (GND) LG - W-B CAN communication signal Power switch on (IG)

    Pulse generation

    (See waveform 2)
    L54-39 (CA2H) - L54-25 (GND) B - W-B CAN communication signal Power switch on (IG)

    Pulse generation

    (See waveform 2)

    1. A00438KE62

      WAVEFORM 1


      1. CAN communication signal

        Driving support ECU Terminal Name

        Between L54-17 (CA2L) and L54-25 (GND)

        Between L54-18 (CA1N) and L54-25 (GND)
        Tester Range 1 V/DIV., 10 msec./DIV.
        Condition Power switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

    2. A0042JXE68

      WAVEFORM 2


      1. CAN communication signal

        Driving support ECU Terminal Name

        Between L54-39 (CA2H) and L54-25 (GND)

        Between L54-40 (CA1P) and L54-25 (GND)
        Tester Range 1 V/DIV., 10 msec./DIV.
        Condition Power switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

  2. CHECK POWER MANAGEMENT CONTROL ECU

    A0042MEE23
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    L5-6 (E1) - Body ground BR - Body ground Earth (ground) circuit of power management control ECU Always Below 1 Ω
    L5-11 (TC) - L5-6 (E1) P - BR Terminal TC of DLC3 Power switch on (IG) 11 to 14 V
    L5-11 (TC) - L5-6 (E1) P - BR Terminal TC of DLC3 Terminals TC and CG of DLC3 connected Below 1 V
    L5-34 (CA2H) - L5-6 (E1) P - BR CAN communication signal Power switch on (IG)

    Pulse generation

    (see waveform 1)
    L5-35 (CA2L) - L5-6 (E1) V - BR CAN communication signal Power switch on (IG)

    Pulse generation

    (see waveform 2)
    L6-24 (CA1L) - L5-6 (E1) W - BR CAN communication signal Power switch on (IG)

    Pulse generation

    (see waveform 2)
    L6-25 (CA1H) - L5-6 (E1) B - BR CAN communication signal Power switch on (IG)

    Pulse generation

    (see waveform 1)

    1. A0042JXE68

      WAVEFORM 1


      1. CAN communication signal

        Driving support ECU Terminal Name

        Between L6-25 (CA1H) and L5-6 (E1)

        Between L5-34 (CA2H) and L5-6 (E1)
        Tester Range 1 V/DIV., 10 msec./DIV.
        Condition Power switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

    2. A00438KE62

      WAVEFORM 2


      1. CAN communication signal

        Driving support ECU Terminal Name

        Between L6-24 (CA1L) and L5-6 (E1)

        Between L5-35 (CA2L) and L5-6 (E1)
        Tester Range 1 V/DIV., 10 msec./DIV.
        Condition Power switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.