DYNAMIC RADAR CRUISE CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK DRIVING SUPPORT ECU ASSEMBLY

    A018JNZE22
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    F84-30 (B) - F84-25 (GND) R - W-B Battery Always 11 to 14 V
    F84-39 (CA2H) - F84-25 (GND) G - W-B CAN communication signal Engine switch on (IG)

    Pulse generation

    (See waveform 1)
    F84-17 (CA2L) - F84-25 (GND) W - W-B CAN communication signal Engine switch on (IG)

    Pulse generation

    (See waveform 2)
    F84-25 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    F84-6 (SPSW) - F84-25 (GND) V - W-B Vehicle-to-vehicle distance control switch signal Engine switch on (IG), Vehicle-to-vehicle distance control switch on Below 1 V
    F84-6 (SPSW) - F84-25 (GND) V - W-B Vehicle-to-vehicle distance control switch signal Engine switch on (IG), Vehicle-to-vehicle distance control switch off 10 to 14 V
    F84-18 (CA1N) - F84-25 (GND) W - W-B CAN communication signal Engine switch on (IG)

    Pulse generation

    (See waveform 3)
    F84-40 (CA1P) - F84-25 (GND) R - W-B CAN communication signal Engine switch on (IG)

    Pulse generation

    (See waveform 4)
    F84-32 (WIP2) - F84-25 (GND) P - W-B Wiper switch signal Engine switch on (IG), wiper switch HI position 11 to 14 V
    F84-32 (WIP2) - F84-25 (GND) P - W-B Wiper switch signal Engine switch on (IG), wiper switch LO position 6 to 10 V

    1. Waveform 1


      1. A018KB5E03

        CAN communication signal

        Item Content
        Terminal Name F84-39 (CA2H) - F84-25 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

    2. A018LNRE03

      Waveform 2


      1. CAN communication signal

        Item Content
        Terminal Name F84-17 (CA2L) - F84-25 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

    3. Waveform 3


      1. A018LNRE03

        CAN communication signal

        Item Content
        Terminal Name F84-18 (CA1N) - F84-25 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

    4. A018KB5E03

      Waveform 4


      1. CAN communication signal

        Item Content
        Terminal Name F84-40 (CA1P) - F84-25 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

  2. CHECK ECM

    A0027PZE61
    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    A43-45 (TC) - C1-49 (E1) G - BR Connected to terminal TC of DLC3 Engine switch on (IG) 11 to 14 V
    A43-45 (TC) - C1-49 (E1) G - BR Connected to terminal TC of DLC3 Terminals TC and CG of DLC3 connected Below 1 V
    A43-51 (STP) - C1-49 (E1) G - BR Stop light signal Engine switch on (IG), Brake pedal depressed 11 to 14 V
    A43-51 (STP) - C1-49 (E1) G - BR Stop light signal Engine switch on (IG), Brake pedal released Below 1 V
    A43-47 (CCS) - C1-49 (E1) R - BR Cruise control main switch circuit Cruise control main switch OFF 1 MΩ or higher
    A43-47 (CCS) - C1-49 (E1) R - BR Cruise control main switch circuit Cruise control main switch ON Below 1.5 Ω
    A43-47 (CCS) - C1-49 (E1) R - BR Cruise control main switch circuit +/RES switch ON 235 to 245 Ω
    A43-47 (CCS) - C1-49 (E1) R - BR Cruise control main switch circuit -/SET switch ON 617 to 643 Ω
    A43-47 (CCS) - C1-49 (E1) R - BR cruise control main switch circuit CANCEL switch ON 1509 to 1571 Ω
    A43-36 (ST1-) - C1-49 (E1) L - BR Stop light signal Engine switch on (IG), Brake pedal depressed Below 1 V
    A43-36 (ST1-) - C1-49 (E1) L - BR Stop light signal

    Engine switch on (IG),

    Brake pedal released

    		 11 to 14 V
    C1-69 (D) - C1-49 (E1) G - BR D shift position signal

    Engine switch on (IG),

    Shift lever in D or S range

    		 11 to 14 V
    C1-69 (D) - C1-49 (E1) G - BR D shift position signal

    Engine switch on (IG),

    Shift lever in other than D or S range

    		 Below 1 V
    A43-50 (SFTD) - C1-49 (E1) SB - BR Down shift switch signal Engine switch on (IG) and shift lever in S range 11 to 14 V
    Engine switch on (IG) and shift lever in "-" position (Down shift) Below 1 V
    A43-34 (SFTU) - C1-49 (E1) V - BR Up shift switch signal Engine switch on (IG) and shift lever in S range 11 to 14 V
    Engine switch on (IG) and shift lever in "+" position (Up shift) Below 1 V
    A43-48 (CCHG) - C1-49 (E1) Y - BR Cruise control main switch signal

    Engine switch on (IG)

    MODE switch off

    		 10 to 14 V
    A43-48 (CCHG) - C1-49 (E1) Y - BR Cruise control main switch signal

    Engine switch on (IG)

    MODE switch on

    		 Below 1 V

    If the value is not within the specified range, the ECM may have a malfunction.