DYNAMIC TORQUE CONTROL AWD SYSTEM TERMINALS OF ECU


  1. CHECK 4WD ECU ASSEMBLY

    A01HE6VE13

    1. Measure the voltage and resistance of the connector.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I55-10 (4WDS) - I55-4 (GND) R - W-B AWD lock mode switch signal

      Engine switch on (IG)

      AWD lock mode switch released → pressed and held

      		 11 to 14 V → Below 1 V
      I55-6 (CANH) - I55-5 (CANL) GR - W HIGH-level CAN bus wire - LOW-level CAN bus wire Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      I55-4 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      I55-3 (IG1) - I55-4 (GND) B - W-B Power source voltage Engine switch on (IG) 11 to 14 V
      I55-2 (SLC+) - I55-1 (SLC-) W - B 4WD linear solenoid signal Shift lever in D, engine idling Pulse generation (See waveform 1)

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

    2. A01HHUTE01

      Using an oscilloscope, check the waveform 1.

      Waveform 1 (Reference)
      Item Content
      Terminal No. (Symbol) I55-2 (SLC+) - I55-1 (SLC-)
      Tester Range 2 V/DIV., 1 msec./DIV.
      Condition Shift lever in D, engine idling