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Home >> Toyota >> 2013 >> Prius Three >> Repair and Diagnosis (Single Page) >> External Pages >> Different variant/trim >> Section 84 (Dynamic Radar Cruise Control System (Diagnostics - Introduction) (Plug-In)) >> Dynamic Radar Cruise Control System >> Terminals Of Ecu >> Terminals Of Ecu
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Terminals Of Ecu

WARNING: This page is about a different variant/trim than selected.
  1. CHECK DRIVING SUPPORT ECU 
    Fig 1: Driving Support ECU Connector Terminal Identification
    GTY341894Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    L151-6 (SPSW) - L151-25 (GND) R - W-B Steering pad switch signal
    (distance control signal)    		 Power switch on (IG)
    Distance control switch off    		 11 to 14 V
    L151-6 (SPSW) - L151-25 (GND) R - W-B Steering pad switch signal
    (distance control signal)    		 Power switch on (IG)
    Distance control switch on    		 Below 2 V
    L151-10 (CCHG) - L151-25 (GND) G - W-B Cruise control switch signal Power switch on (IG),
    MODE switch off    		 11 to 14 V
    L151-10 (CCHG) - L151-25 (GND) G - W-B Cruise control switch signal Power switch on (IG),
    MODE switch on    		 Below 1 V
    L151-17 (CA2L) - L151-25 (GND) W - W-B CAN communication signal Power switch on (IG) Pulse generation
    (See waveform 1)
    L151-18 (CA1N) - L151-25 (GND) P - W-B Millimeter wave radar sensor Power switch on (IG) Pulse generation
    (See waveform 1)
    L151-23 (CCS) - L151-25 (GND) V - W-B Cruise control switch signal Power switch on (IG) 1 MΩ or higher
    L151-23 (CCS) - L151-25 (GND) V - W-B Cruise control switch signal CANCEL switch on 1509 to 1571 Ω
    L151-23 (CCS) - L151-25 (GND) V - W-B Cruise control switch signal -/SET switch on 617 to 643 Ω
    L151-23 (CCS) - L151-25 (GND) V - W-B Cruise control switch signal +/RES switch on 235 to 245 Ω
    L151-23 (CCS) - L151-25 (GND) V - W-B Cruise control switch signal Cruise control switch on Below 2.5 Ω
    L151-25 (GND) - Body ground W-B - Body ground Earth (ground circuit of driving support ECU) Always Below 1 Ω
    L151-27 (STP-) - L151-25 (GND) Y - W-B Stop light signal Brake pedal released Below 1 V
    L151-27 (STP-) - L151-25 (GND) Y - W-B Stop light signal Brake pedal depressed 7.5 to 14 V
    L151-28 (ST1-) - L151-25 (GND) R - W-B Stop light signal Power switch on (IG),
    Brake pedal released    		 7.5 to 14 V
    L151-28 (ST1-) - L151-25 (GND) R - W-B Stop light signal Power switch on (IG),
    Brake pedal depressed    		 Below 1 V
    L151-30 (B) - L151-25 (GND) B - W-B Power source Power switch on (IG) 11 to 14 V
    L151-32 (WIP2) - L151-25 (GND) P - W-B Wiper switch signal Power switch on (IG),
    Wiper switch off    		 Below 2 V
    L151-32 (WIP2) - L151-25 (GND) P - W-B Wiper switch signal Power switch on (IG),
    Wiper switch HI position    		 11 to 14 V
    L151-40 (CA1P) - L151-25 (GND) LG - W-B Millimeter wave radar sensor output signal Power switch on (IG) Pulse generation
    (See waveform 2)
    L151-39 (CA2H) - L151-25 (GND) B - W-B CAN communication signal Power switch on (IG) Pulse generation
    (See waveform 2)
    1. WAVEFORM 1
      Fig 2: Identifying Waveform 1
      GTY335000Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. CAN communication signal
        Driving support ECU Terminal Name Between L151-17 (CA2L) and L151-25 (GND)
        Between L151-18 (CA1N) and L151-25 (GND)
        Tester Range 1 V/DIV., 10 msec./DIV.
        Condition Power switch on (IG)

        HINT: 

        The waveform varies depending on the CAN communication signal.

    2. WAVEFORM 2
      Fig 3: Identifying Waveform 2
      GTY332223Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. CAN communication signal
        Driving support ECU Terminal Name Between L151-39 (CA2H) and L151-25 (GND)
        Between L151-40 (CA1P) and L151-25 (GND)
        Tester Range 1 V/DIV., 10 msec./DIV.
        Condition Power switch on (IG)

        HINT: 

        The waveform varies depending on the CAN communication signal.

  2. CHECK POWER MANAGEMENT CONTROL ECU 
    Fig 4: Power Management Control ECU Connector Terminal Identification
    GTY339663Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    L135-6 (E1) - Body ground BR - Body ground Earth (ground) circuit of power management control ECU Always Below 1 Ω
    L135-11 (TC) - L135-6 (E1) P - BR Terminal TC of DLC3 Power switch on (IG) 11 to 14 V
    L135-11 (TC) - L135-6 (E1) P - BR Terminal TC of DLC3 Terminals TC and CG of DLC3 connected Below 1 V
    L135-34 (CA2H) - L135-6 (E1) P - BR CAN communication line Power switch on (IG) Pulse generation
    (see waveform 1)
    L135-35 (CA2L) - L135-6 (E1) V - BR CAN communication line Power switch on (IG) Pulse generation
    (see waveform 2)
    L136-24 (CA1L) - L135-6 (E1) W - BR CAN communication line Power switch on (IG) Pulse generation
    (see waveform 2)
    L136-25 (CA1H) - L135-6 (E1) B - BR CAN communication line Power switch on (IG) Pulse generation
    (see waveform 1)
    1. WAVEFORM 1
      Fig 5: Identifying Waveform 1
      GTY332223Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. CAN communication signal
        Driving support ECU Terminal Name Between L136-25 (CA1H) and L135-6 (E1)
        Between L135-34 (CA2H) and L135-6 (E1)
        Tester Range 1 V/DIV., 10 msec./DIV.
        Condition Power switch on (IG)

        HINT: 

        The waveform varies depending on the CAN communication signal.

    2. WAVEFORM 2
      Fig 6: Identifying Waveform 2
      GTY335000Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. CAN communication signal
        Driving support ECU Terminal Name Between L136-24 (CA1L) and L135-6 (E1)
        Between L135-35 (CA2L) and L135-6 (E1)
        Tester Range 1 V/DIV., 10 msec./DIV.
        Condition Power switch on (IG)

        HINT: 

        The waveform varies depending on the CAN communication signal.

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