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Terminals Of Driving Support Ecu Assembly [12/2013 - 11/2016]

  1. CHECK DRIVING SUPPORT ECU ASSEMBLY 
    Fig 1: Driving Support ECU Assembly Connector End View F84
    GTY444655Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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. CAN communication signal
        Fig 2: Waveform 1
        GTY440109Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        Item Content
        Terminal Name F84-39 (CA2H) - F84-25 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        HINT: 

        The waveform varies depending on the CAN communication signal.

    2. Waveform 2
      Fig 3: Waveform 2
      GTY440038Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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)

        HINT: 

        The waveform varies depending on the CAN communication signal.

    3. Waveform 3
      1. CAN communication signal
        Fig 4: Waveform 3
        GTY440038Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        Item Content
        Terminal Name F84-18 (CA1N) - F84-25 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        HINT: 

        The waveform varies depending on the CAN communication signal.

    4. Waveform 4
      Fig 5: Waveform 4
      GTY440109Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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)

        HINT: 

        The waveform varies depending on the CAN communication signal.

  2. CHECK ECM 
    Fig 6: ECM Terminal Connector Identification
    GTY453921Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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.

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