CRUISE CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK POWER MANAGEMENT CONTROL ECU

    A01UZQ8E02
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A27-7 (ST1-) - F55-6 (E1) BR - BR Stop light switch signal Ignition switch ON (IG), Brake pedal released 11 to 14 V
    A27-7 (ST1-) - F55-6 (E1) BR - BR Stop light switch signal Ignition switch ON (IG), Brake pedal depressed Below 1 V
    A27-23 (STP) - F55-6 (E1) G - BR Stop light switch signal Brake pedal released Below 1 V
    A27-23 (STP) - F55-6 (E1) G - BR Stop light switch signal Brake pedal depressed 11 to 14 V
    F55-6 (E1) - Body ground BR - Body ground Earth (ground) circuit of power management control ECU Always Below 1 Ω
    F55-11 (TC) - F55-6 (E1) L - BR Terminal TC of DLC3 Ignition switch ON (IG) 11 to 14 V
    F55-11 (TC) - F55-6 (E1) L - BR Terminal TC of DLC3 Terminals TC and CG of DLC3 connected Below 1 V
    F55-14 (SPDI) - F55-6 (E1) L - BR Vehicle speed signal Driving at 20 km/h (12 mph)

    Pulse generation

    (see waveform 1)
    F56-22 (CCS) - F55-6 (E1) BE - BR Cruise control switch circuit Ignition switch ON (IG) 1 MΩ or higher
    F56-22 (CCS) - F55-6 (E1) BE - BR Cruise control switch circuit Ignition switch ON (IG), Cruise control switch on Below 2.5 Ω
    F56-22 (CCS) - F55-6 (E1) BE - BR Cruise control switch circuit Ignition switch ON (IG), +/RES switch on 235 to 245 Ω
    F56-22 (CCS) - F55-6 (E1) BE - BR Cruise control switch circuit Ignition switch ON (IG), -/SET switch on 617 to 643 Ω
    F56-22 (CCS) - F55-6 (E1) BE - BR Cruise control switch circuit Ignition switch ON (IG), CANCEL switch on 1509 to 1571 Ω
    F56-24 (CA1L) - F55-6 (E1) W - BR CAN communication line Ignition switch ON (IG)

    Pulse generation

    (see waveform 2)
    F56-25 (CA1H) - F55-6 (E1) BE - BR CAN communication line Ignition switch ON (IG)

    Pulse generation

    (see waveform 3)

    1. A01V0V2E02
      *a 5 V/DIV.
      *b 20 ms./DIV.

      WAVEFORM 1


      1. Vehicle speed signal

        Power Management Control ECU Terminal Name Between F55-14 (SPDI) and F55-6 (E1)
        Tester Range 5 V/DIV., 20 ms./DIV.
        Condition Driving at 20 km/h (12 mph)

        Tech Tips


        • The wavelength becomes shorter as the vehicle speed increases.

        • Depending on the vehicle, the output waveform voltage may rise to 12 V if influenced by optionally installed systems.

    2. A01UZZ7E02
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 2


      1. CAN communication signal

        Power Management Control ECU Terminal Name Between F56-24 (CA1L) and F55-6 (E1)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Ignition switch ON (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

    3. A01V1ELE02
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 3


      1. CAN communication signal

        Power Management Control ECU Terminal Name Between F56-25 (CA1H) and F55-6 (E1)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Ignition switch ON (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.