DYNAMIC RADAR CRUISE CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK DRIVING SUPPORT ECU

    A019MPJE02
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    C1-30 (B) - C1-25 (GND) P - W-B Battery Always 11 to 14 V
    C1-39 (CA2H) - C1-25 (GND) B - W-B CAN communication signal CAN communication circuit Pulse generation
    C1-17 (CA2L) - C1-25 (GND) W - W-B CAN communication signal CAN communication circuit Pulse generation
    C1-25 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
    C1-7 (MODE) - C1-25 (GND) Y - W-B Steering pad switch signal (Distance control switch signal) Engine switch on (IG), Steering pad switch signal ON 0 to 2 V
    C1-7 (MODE) - C1-25 (GND) Y - W-B Steering pad switch signal (Distance control switch signal) Engine switch on (IG), Steering pad switch signal OFF 11 to 14 V
    C1-16 (LRDD) - C1-25 (GND) GR - W-B Millimeter wave radar sensor input signal Engine switch on (IG)

    Pulse generation

    (See waveform 1)
    C1-38 (LRRD) - C1-25 (GND) LG - W-B Millimeter wave radar sensor output signal Engine switch on (IG)

    Pulse generation

    (See waveform 2)
    C1-32 (WIP2) - C1-25 (GND) BE - W-B Wiper switch signal Engine switch on (IG), wiper switch HI position 11 to 14 V
    C1-32 (WIP2) - C1-25 (GND) BE - W-B Wiper switch signal Engine switch on (IG), wiper switch LO position Below 1 V

    1. A019LSEE01

      Reference: waveform 1

      Tech Tips


      • Terminal: C1-16 (LRDD) - C1-25 (GND)

      • Gauge set: 2 V/DIV., 10 msec./DIV.

      • Condition: Engine switch on (IG)

    2. A019M5JE01

      Reference: waveform 2

      Tech Tips


      • Terminal: C1-38 (LRRD) - C1-25 (GND)

      • Gauge set: 2 V/DIV., 5 msec./DIV.

      • Condition: Engine switch on (IG)

  2. CHECK ECM (for 2GR-FE)

    A019L8VE06
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A43-16 (TC) - D1-81 (E1) L - BR Ground Engine switch on (IG) 11 to 14 V
    A43-16 (TC) - D1-81 (E1) L - BR Ground Terminals TC and CG of DLC3 connected Below 1 V
    A43-35 (ST1-) - D1-81 (E1) BR - BR Stop light signal Engine switch on (IG), Brake pedal depressed (Stop light switch on) Below 1 V
    A43-35 (ST1-) - D1-81 (E1) BR - BR Stop light signal Engine switch on (IG), Brake pedal released (Stop light switch off) 11 to 14 V
    A43-36 (STP) - D1-81 (E1) B - BR Stop light signal Engine switch on (IG), Brake pedal released (Stop light switch off) Below 1 V
    A43-36 (STP) - D1-81 (E1) B - BR Stop light signal Engine switch on (IG), Brake pedal depressed (Stop light switch on) 11 to 14 V
    A43-37 (CCHG) - D1-81 (E1) GR - BR Distance control switch signal Engine switch on (IG), Cruise control main switch on, MODE switch on Below 1 V
    A43-37 (CCHG) - D1-81 (E1) GR - BR Distance control switch signal Engine switch on (IG), Cruise control main switch on, MODE switch off 11 to 14 V
    A43-44 (LGND) - Body ground V - Body ground Ground Always Below 1 V
    A43-45 (CCS) - D1-81 (E1) P - BR Cruise control main switch signal Engine switch on (IG) 11 to 14 V
    A43-45 (CCS) - D1-81 (E1) P - BR Cruise control main switch signal Engine switch on (IG), CANCEL switch on 6.6 to 10.1 V
    A43-45 (CCS) - D1-81 (E1) P - BR Cruise control main switch signal Engine switch on (IG), - SET switch on 4.5 to 7.1 V
    A43-45 (CCS) - D1-81 (E1) P - BR Cruise control main switch signal Engine switch on (IG), + RES switch on 2.3 to 4.0 V
    A43-45 (CCS) - D1-81 (E1) P - BR Cruise control main switch signal Engine switch on (IG), Main switch on Below 1 V
    D1-81 (E1) - Body ground BR - Body ground Ground Always Below 1 V

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