TRANSFER SYSTEM TERMINALS OF ECU


  1. CHECK 4 WHEEL DRIVE CONTROL ECU

    A01DS59E11

    1. Measure the voltage and resistance according to the value(s) in the table below.

      for 1GR-FE, 1KD-FTV:
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G53-1 (HL1) - G54-4 (GND) GR - W-B High-low transfer shift actuator limit switch

      Ignition switch ON

      Transfer position switch H4

      		 10.5 to 14 V

      Ignition switch ON

      Transfer position switch L4

      		 Below 1.5 V
      G53-2 (HL2) - G54-4 (GND) LG - W-B High-low transfer shift actuator limit switch

      Ignition switch ON

      Transfer position switch H4

      		 Below 1.5 V

      Ignition switch ON

      Transfer position switch L4

      		 10.5 to 14 V
      G53-7 (TL2) - G54-4 (GND) V - W-B Multi mode transfer shift actuator limit switch

      Ignition switch ON

      Center differential lock switch Lock

      		 Below 1.5 V

      Ignition switch ON

      Center differential lock switch Free

      		 10.5 to 14 V
      G53-8 (TL3) - G54-4 (GND) G - W-B Multi mode transfer shift actuator limit switch

      Ignition switch ON

      Center differential lock switch Lock

      		 10.5 to 14 V

      Ignition switch ON

      Center differential lock switch Free

      		 Below 1.5 V
      G53-13 (LO) - G54-4 (GND) GR - W-B Transfer position switch

      Ignition switch ON

      Transfer position switch H4

      		 10.5 to 14 V

      Ignition switch ON

      Transfer position switch L4

      		 Below 1.5 V
      G53-14 (P1) - G54-4 (GND) W - W-B

      Multi mode transfer shift actuator

      Center differential lock position detection switch

      Ignition switch ON

      Center differential lock switch Free

      		 9.5 to 14 V

      Ignition switch ON

      Center differential lock switch Lock

      		 Below 1.5 V
      G53-16 (DL) - G54-4 (GND) W - W-B Center differential lock switch

      Ignition switch ON

      Center differential lock switch ON

      		 Below 1.5 V

      Ignition switch ON

      Center differential lock switch OFF

      		 9.5 to 14 V
      G53-17 (MTN)*1 - G54-4 (GND) B - W-B Clutch start switch

      Ignition switch ON

      Clutch start switch ON

      		 Below 1.5 V

      Ignition switch ON

      Clutch start switch OFF

      		 9.5 to 14 V
      G53-19 (CANH) - G54-4 (GND) G - W-B CAN communication line Ignition switch ON Pulse generation (see waveform 1)
      G53-20 (CANL) - G54-4 (GND) W - W-B CAN communication line Ignition switch ON Pulse generation (see waveform 2)
      G53-21 (L4) - G54-4 (GND) R - W-B Transfer L4 signal

      Ignition switch ON

      Transfer position switch H4

      		 10 to 14 V

      Ignition switch ON

      Transfer position switch L4

      		 Below 1.5 V
      G54-2 (HM1) - G54-4 (GND) B - W-B High-low transfer shift actuator motor

      Ignition switch ON

      Transfer position switch H4 → L4 (During operation of high-low transfer shift actuator motor from HIGH to LOW)

      		 10 to 14 V

      Ignition switch ON

      Transfer position switch H4 → L4 (High-low transfer shift actuator motor stopped)

      		 Below 1.5 V
      G54-3 (IG) - G54-4 (GND) R - W-B IG power Ignition switch ON 11 to 14 V
      G54-4 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G54-6 (HM2) - G54-4 (GND) W - W-B High-low transfer shift actuator motor

      Ignition switch ON

      Transfer position switch L4 → H4 (During operation of high-low transfer shift actuator motor from LOW to HIGH)

      		 10 to 14 V

      Ignition switch ON

      Transfer position switch L4 → H4 (High-low transfer shift actuator motor stopped)

      		 Below 1.5 V
      G54-7 (TM2) - G54-4 (GND) V - W-B Multi mode transfer shift actuator motor

      Ignition switch ON

      Center differential lock switch LOCK → FREE (During operation of multi mode transfer shift actuator motor from LOCK to FREE)

      		 10 to 14 V

      Ignition switch ON

      Center differential lock switch LOCK → FREE (Multi mode transfer shift actuator motor stopped)

      		 Below 1.5 V
      G54-8 (TM1) - G54-4 (GND) P - W-B Multi mode transfer shift actuator motor

      Ignition switch ON

      Center differential lock switch FREE → LOCK (During operation of multi mode transfer shift actuator motor from FREE to LOCK)

      		 10 to 14 V

      Ignition switch ON

      Center differential lock switch FREE → LOCK (Multi mode transfer shift actuator motor stopped)

      		 Below 1.5 V

      *1: for Manual Transmission

      for 2TR-FE, 5L-E:
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G53-1 (HL1) - G54-4 (GND) GR - W-B High-low transfer shift actuator limit switch

      Ignition switch ON

      Transfer position switch H4F or H4L

      		 10.5 to 14 V

      Ignition switch ON

      Transfer position switch L4L

      		 Below 1.5 V
      G53-2 (HL2) - G54-4 (GND) LG - W-B High-low transfer shift actuator limit switch

      Ignition switch ON

      Transfer position switch H4F or H4L

      		 Below 1.5 V

      Ignition switch ON

      Transfer position switch L4L

      		 10.5 to 14 V
      G53-6 (TL1) - G54-4 (GND) W-B - W-B Transfer operating switch mode selection signal Always Below 1 Ω
      G53-7 (TL2) - G54-4 (GND) V - W-B Multi mode transfer shift actuator limit switch

      Ignition switch ON

      Transfer position switch H4L or L4L

      		 Below 1.5 V

      Ignition switch ON

      Transfer position switch H4F

      		 10.5 to 14 V
      G53-8 (TL3) - G54-4 (GND) G - W-B Multi mode transfer shift actuator limit switch

      Ignition switch ON

      Transfer position switch H4L or L4L

      		 10.5 to 14 V

      Ignition switch ON

      Transfer position switch H4F

      		 Below 1.5 V
      G53-11 (2-4) - G54-4 (GND) R - W-B Transfer position switch

      Ignition switch ON

      Transfer position switch H4F or H4L

      		 Below 1.5 V

      Ignition switch ON

      Transfer position switch L4L

      		 10.5 to 14 V
      G53-13 (LO) - G54-4 (GND) GR - W-B Transfer position switch

      Ignition switch ON

      Transfer position switch H4F

      		 10.5 to 14 V

      Ignition switch ON

      Transfer position switch H4L or L4L

      		 Below 1.5 V
      G53-14 (P1) - G54-4 (GND) W - W-B

      Multi mode transfer shift actuator

      Center differential lock position detection switch

      Ignition switch ON

      Transfer position switch H4F

      		 9.5 to 14 V

      Ignition switch ON

      Transfer position switch H4L or L4L

      		 Below 1.5 V
      G53-17 (MTN)*1 - G54-4 (GND) B - W-B Clutch start switch

      Ignition switch ON

      Clutch start switch ON

      		 Below 1.5 V

      Ignition switch ON

      Clutch start switch OFF

      		 9.5 to 14 V
      G53-19 (CANH) - G54-4 (GND) G - W-B CAN communication line Ignition switch ON Pulse generation (see waveform 1)
      G53-20 (CANL) - G54-4 (GND) W - W-B CAN communication line Ignition switch ON Pulse generation (see waveform 2)
      G53-21 (L4) - G54-4 (GND) R - W-B Transfer L4 signal

      Ignition switch ON

      Transfer position switch H4F or H4L

      		 10 to 14 V

      Ignition switch ON

      Transfer position switch L4L

      		 Below 1.5 V
      G54-2 (HM1) - G54-4 (GND) B - W-B High-low transfer shift actuator motor

      Ignition switch ON

      Transfer position switch H4L → L4L (During operation of high-low transfer shift actuator motor from HIGH to LOW)

      		 10 to 14 V

      Ignition switch ON

      Transfer position switch H4L → L4L (High-low transfer shift actuator motor stopped)

      		 Below 1.5 V
      G54-3 (IG) - G54-4 (GND) R - W-B IG power Ignition switch ON 11 to 14 V
      G54-4 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G54-6 (HM2) - G54-4 (GND) W - W-B High-low transfer shift actuator motor

      Ignition switch ON

      Transfer position switch L4L → H4L (During operation of high-low transfer shift actuator motor from LOW to HIGH)

      		 10 to 14 V

      Ignition switch ON

      Transfer position switch L4L → H4L (High-low transfer shift actuator motor stopped)

      		 Below 1.5 V
      G54-7 (TM2) - G54-4 (GND) V - W-B Multi mode transfer shift actuator motor

      Ignition switch ON

      Transfer position switch H4L → H4F (During operation of multi mode transfer shift actuator motor from LOCK to FREE)

      		 10 to 14 V

      Ignition switch ON

      Transfer position switch H4L → H4F (Multi mode transfer shift actuator motor stopped)

      		 Below 1.5 V
      G54-8 (TM1) - G54-4 (GND) P - W-B Multi mode transfer shift actuator motor

      Ignition switch ON

      Transfer position switch H4F → H4L (During operation of multi mode transfer shift actuator motor from FREE to LOCK)

      		 10 to 14 V

      Ignition switch ON

      Transfer position switch H4F → H4L (Multi mode transfer shift actuator motor stopped)

      		 Below 1.5 V

      *1: for Manual Transmission

    2. A01DSS4E52
      Text in Illustration
      *1 Waveform 1

      Using an oscilloscope, check waveform 1.

      Waveform 1 (Reference)
      Item Content
      Terminal No. (Symbol) G53-19 (CANH) - G54-4 (GND)
      Tool setting 1 V/DIV., 10 μsec./DIV.
      Condition Engine stopped and ignition switch ON

      Tech Tips

      The waveform varies depending on the CAN communication signal.

    3. A01DQ02E01
      Text in Illustration
      *1 Waveform 2

      Using an oscilloscope, check waveform 2.

      Waveform 2 (Reference)
      Item Content
      Terminal No. (Symbol) G53-20 (CANL) - G54-4 (GND)
      Tool setting 1 V/DIV., 10 μsec./DIV.
      Condition Engine stopped and ignition switch ON

      Tech Tips

      The waveform varies depending on the CAN communication signal.