DYNAMIC TORQUE CONTROL 4WD/AWD SYSTEM TERMINALS OF ECU


  1. CHECK 4WD ECU ASSEMBLY

    A01QSP4E02

    1. Measure the voltage and resistance of the connector.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G86-10 (4WDS) - G86-4 (GND) R - W-B 4WD/AWD lock switch signal

      Ignition switch ON

      4WD/AWD lock switch OFF → ON

      		 11 to 14 V → Below 1 V
      G86-11 (EXI)* - G86-4 (GND) GR - W-B Sport mode switch signal

      Ignition switch ON

      Sport mode switch OFF → ON

      		 11 to 14 V → Below 1 V
      G86-6 (CANH) - G86-5 (CANL) GR - W HIGH-level CAN bus wire - LOW-level CAN bus wire Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      G86-4 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G86-3 (IG1) - G86-4 (GND) V - W-B Power source voltage Ignition switch ON 11 to 14 V
      G86-2 (SLC+) - G86-1 (SLC-) W - B 4WD linear solenoid signal D position, Idling Pulse generation (See waveform 1)

      • *: for Manual Transaxle

      If the result is not as specified, the 4WD ECU assembly may have a malfunction.

    2. A01QSWAE01

      Using an oscilloscope, check the waveform 1.

      Waveform 1 (Reference)
      Item Content
      Terminal No. (Symbol) G86-2 (SLC+) - G86-1 (SLC-)
      Tester Range 2 V/DIV., 1 msec./DIV.
      Condition D position, Idling