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Terminals Of Driving Support Ecu Assembly [10/2014 - 10/2015]

  1. CHECK DRIVING SUPPORT ECU ASSEMBLY 
    GTY575140Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    D38-30 (B) - D38-25 (GND) G - W-B Battery Always 11 to 14 V
    D38-39 (CA2H) - D38-25 (GND) SB - W-B CAN communication signal Engine switch on (IG) Pulse generation
    (See waveform 1)
    D38-17 (CA2L) - D38-25 (GND) Y - W-B CAN communication signal Engine switch on (IG) Pulse generation
    (See waveform 2)
    D38-25 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    D38-6 (SPSW) - D38-25 (GND) R - W-B Steering pad switch signal (Distance control switch signal) Engine switch on (IG), Distance control switch on 6 to 7 V
    D38-6 (SPSW) - D38-25 (GND) R - W-B Steering pad switch signal (Distance control switch signal) Engine switch on (IG), Distance control switch off 10 to 14 V
    D38-18 (CA1N) - D38-25 (GND) W - W-B CAN communication signal Engine switch on (IG) Pulse generation
    (See waveform 1)
    D38-40 (CA1P) - D38-25 (GND) R - W-B CAN communication signal Engine switch on (IG) Pulse generation
    (See waveform 2)
    D38-32 (WIP2) - D38-25 (GND) W - W-B Wiper switch signal Engine switch on (IG), wiper switch HI position 11 to 14 V
    D38-32 (WIP2) - D38-25 (GND) W - W-B Wiper switch signal Engine switch on (IG), wiper switch LO position Below 1 V
    1. WAVEFORM 1
      GTY604107Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. CAN communication signal
        Item Content
        Terminal Name Between D38-18 (CA1N) and D38-25 (GND)
        Between D38-39 (CA2H) and D38-25 (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
      GTY609213Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. CAN communication signal
        Item Content
        Terminal Name Between D38-17 (CA2L) and D38-25 (GND)
        Between D38-40 (CA1P) and D38-25 (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 
    GTY544481Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    A18-45 (TC) - B10-49 (E1) P - BR Connected to terminal TC of DLC3 Engine switch on (IG) 11 to 14 V
    A18-45 (TC) - B10-49 (E1) P - BR Connected to terminal TC of DLC3 Terminals TC and CG of DLC3 connected Below 1 V
    A18-51 (STP) - B10-49 (E1) BE - BR Stop light signal Engine switch on (IG), Brake pedal depressed 11 to 14 V
    A18-51 (STP) - B10-49 (E1) BE - BR Stop light signal Engine switch on (IG), Brake pedal released Below 1 V
    A18-47 (CCS) - B10-49 (E1) W - BR Cruise control switch circuit Cruise control switch OFF 1 MΩ or higher
    A18-47 (CCS) - B10-49 (E1) W - BR Cruise control switch circuit Cruise control switch ON Below 2.5 Ω
    A18-47 (CCS) - B10-49 (E1) W - BR Cruise control switch circuit +/RES switch ON 235 to 245 Ω
    A18-47 (CCS) - B10-49 (E1) W - BR Cruise control switch circuit -/SET switch ON 617 to 643 Ω
    A18-47 (CCS) - B10-49 (E1) W - BR Cruise control switch circuit CANCEL switch ON 1509 to 1571 Ω
    A18-36 (ST1-) - B10-49 (E1) GR - BR Stop light signal Engine switch on (IG), Brake pedal depressed Below 1 V
    A18-36 (ST1-) - B10-49 (E1) GR - BR Stop light signal Engine switch on (IG),
    Brake pedal released    		 11 to 14 V
    B10-69 (D) - B10-49 (E1) G - BR D shift position signal Engine switch on (IG),
    Shift lever D or S position    		 11 to 14 V
    B10-69 (D) - B10-49 (E1) G - BR D shift position signal Engine switch on (IG),
    Shift lever except D or S position    		 Below 1 V
    A18-50 (SFTD) - B10-49 (E1) V - BR Down shift switch signal Engine switch on (IG) and shift lever S position 11 to 14 V
    Engine switch on (IG) and shift lever "-" position (Down shift) Below 1 V
    A18-34 (SFTU) - B10-49 (E1) R - BR Up shift switch signal Engine switch on (IG) and shift lever S position 11 to 14 V
    Engine switch on (IG) and shift lever "+" position (Up shift) Below 1 V
    A18-48 (CCHG) - A18-49 (LGND) GR - P Cruise control switch signal Engine switch on (IG)
    MODE switch off    		 10 to 14 V
    A18-48 (CCHG) - A18-49 (LGND) GR - P Cruise control 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.

  3. CHECK MILLIMETER WAVE RADAR SENSOR 
    GTY593244Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    A31-2 (SGND) - Body ground B - Body ground Ground Always Below 1 Ω
    A31-3 (CA1N) - A31-2 (SGND) W - B CAN communication signal Engine switch on (IG) Pulse generation
    (see waveform 1)
    A31-4 (CA1P) - A31-2 (SGND) R - B CAN communication signal Engine switch on (IG) Pulse generation
    (see waveform 2)
    A31-5 (IGB) - A31-2 (SGND) V - B Power source Engine switch on (IG) 11 to 14 V
    A31-1 (LGND) - Body ground P - Body ground Ground Always Below 1 Ω
    1. WAVEFORM 1
      GTY609213Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. CAN communication signal
        Item Content
        Terminal Name Between A31-3 (CA1N) and A31-2 (SGND)
        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
      GTY604107Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. CAN communication signal
        Item Content
        Terminal Name Between A31-4 (CA1P) and A31-2 (SGND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        HINT: 

        The waveform varies depending on the CAN communication signal.

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