FOUR WHEEL DRIVE CONTROL SYSTEM TERMINALS OF ECU

Tech Tips

Inspect the connector from the back side while connector is connected.


  1. CHECK 4WD ECU ASSEMBLY

    A01FDRCE09
    Text in Illustration
    *a

    Component with harness connected

    (4WD ECU Assembly)

    		 - -
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A33-11 (IG1) - A33-23 (GND) LG - W-B Power source voltage Engine switch on (IG) 11 to 14 V
    A33-13 (SLC+) - A33-32 (SLC-) B - R Transfer control solenoid signal D position, idling

    Pulse generation

    (see waveform 1)
    A33-14 (CANH) - A33-16 (CANL) V - LG CAN communication line Engine switch off 54 to 69 Ω
    A33-23 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    1. A01FF1XE01

      Waveform 1 (Reference):

      Item Contents
      Tool setting 2 V/DIV, 1 ms/DIV
      Vehicle condition D position, idling