TRANSFER SYSTEM TERMINALS OF ECU


  1. CHECK 4 WHEEL DRIVE CONTROL ECU

    B001I9JC01
    *a

    Component with harness connected

    (4 Wheel Drive Control ECU)

    		 - -

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

      3 Drive Mode (H4F, H4L, or L4L) (for 2TR-FE or 5L-E)
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G53-3 (P1) - G54-10 (GND) W - W-B Center differential lock detection switch input

      Ignition switch ON

      Center differential free

      		 9.5 to 14 V

      Ignition switch ON

      Center differential lock

      		 Below 1.5 V
      G53-7 (HL2) - G54-10 (GND) LG - W-B High-low transfer limit switch input

      Ignition switch ON

      Shift lever in neutral*1

      Shift lever in N*2

      Transfer high

      		 Below 1.5 V

      Ignition switch ON

      Shift lever in neutral*1

      Shift lever in N*2

      Switching between transfer high and low

      		 Below 1.5 V ←→ 10.5 to 14 V

      Ignition switch ON

      Shift lever in neutral*1

      Shift lever in N*2

      Transfer low

      		 10.5 to 14 V
      G53-8 (HL1) - G54-10 (GND) GR - W-B High-low transfer limit switch input

      Ignition switch ON

      Shift lever in neutral*1

      Shift lever in N*2

      Transfer high

      		 10.5 to 14 V

      Ignition switch ON

      Shift lever in neutral*1

      Shift lever in N*2

      Switching between transfer high and low

      		 10.5 to 14 V ←→ Below 1.5 V

      Ignition switch ON

      Shift lever in neutral*1

      Shift lever in N*2

      Transfer low

      		 Below 1.5 V
      G53-9 (TL3) - G54-10 (GND) G - W-B Center differential lock limit switch input

      Ignition switch ON

      Center differential free

      		 Below 1.5 V

      Ignition switch ON

      Switching center differential between free and lock

      		 Below 1.5 V

      Ignition switch ON

      Center differential lock

      		 10.5 to 14 V
      G53-10 (TL2) - G54-10 (GND) V - W-B Center differential lock limit switch input

      Ignition switch ON

      Center differential free

      		 10.5 to 14 V

      Ignition switch ON

      Switching center differential between free and lock

      		 Below 1.5 V

      Ignition switch ON

      Center differential lock

      		 Below 1.5 V
      G53-13 (LO) - G54-10 (GND) GR - W-B Transfer position switch input

      Ignition switch ON

      Transfer position switch H4F

      		 10.5 to 14 V

      Ignition switch ON

      Transfer position switch H4L

      		 Below 1.5 V

      Ignition switch ON

      Transfer position switch L4L

      		 Below 1.5 V
      G53-14 (2-4) - G54-10 (GND) P - W-B Transfer position switch input

      Ignition switch ON

      Transfer position switch H4F

      		 Below 1.5 V

      Ignition switch ON

      Transfer position switch H4L

      		 Below 1.5 V

      Ignition switch ON

      Transfer position switch L4L

      		 10.5 to 14 V
      G53-16 (L4) - G54-10 (GND) R - W-B L4 output signal

      Ignition switch ON

      Transfer high

      		 10 to 14 V

      Ignition switch ON

      Transfer low

      		 Below 1.5 V
      G53-18 (MTN) - G54-10 (GND)*1 B - W-B Clutch start switch input

      Ignition switch ON

      Clutch pedal released

      		 9.5 to 14 V

      Ignition switch ON

      Clutch pedal depressed

      		 Below 1.5 V
      G53-20 (CANH) - G53-40 (CANL) G - W CAN communication line

      Ignition switch off

      Cable disconnected from negative (-) battery terminal

      		 54 to 69 Ω
      G53-21 (+B) - G54-10 (GND) W - W-B ECU power supply Always 11 to 14 V
      G54-2 (HM1) - G54-10 (GND) B - W-B High-low transfer shift motor output

      Ignition switch ON

      Clutch pedal depressed*1

      Shift lever in N*2

      Transfer position switch switched from H4L to L4L

      (Switching from transfer high to low)

      		 Below 1.5 V

      Ignition switch ON

      Clutch pedal depressed*1

      Shift lever in N*2

      Transfer position switch switched from L4L to H4L

      (Switching from transfer low to high)

      		 10 to 14 V
      G54-4 (IG) - G54-10 (GND) R - W-B ECU and actuator power supply Ignition switch ON 11 to 14 V
      G54-6 (HM2) - G54-10 (GND) W - W-B High-low transfer shift motor output

      Ignition switch ON

      Clutch pedal depressed*1

      Shift lever in N*2

      Transfer position switch switched from H4L to L4L

      (Switching from transfer high to low)

      		 10 to 14 V

      Ignition switch ON

      Clutch pedal depressed*1

      Shift lever in N*2

      Transfer position switch switched from L4L to H4L

      (Switching from transfer low to high)

      		 Below 1.5 V
      G54-7 (TM2) - G54-10 (GND) V - W-B Center differential lock shift motor output

      Ignition switch ON

      Transfer position switch switched from H4F to H4L

      (Switching center differential from free to lock)

      		 Below 1.5 V

      Ignition switch ON

      Transfer position switch switched from H4L to H4F

      (Switching center differential from lock to free)

      		 10 to 14 V
      G54-8 (TM1) - G54-10 (GND) P - W-B Center differential lock shift motor output

      Ignition switch ON

      Transfer position switch switched from H4F to H4L

      (Switching center differential from free to lock)

      		 10 to 14 V

      Ignition switch ON

      Transfer position switch switched from H4L to H4F

      (Switching center differential from lock to free)

      		 Below 1.5 V
      G54-10 (GND) - Body ground W-B - Body ground GND Always Below 1 Ω

      • *1: for Manual Transmission

      • *2: for Automatic Transmission

      4 Drive Mode (H4F, H4L, L4F or L4L) (for 1GR-FE, 1GD-FTV or 1KD-FTV)
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G53-3 (P1) - G54-10 (GND) W - W-B Center differential lock detection switch input

      Ignition switch ON

      Center differential free

      		 9.5 to 14 V

      Ignition switch ON

      Center differential lock

      		 Below 1.5 V
      G53-6 (DL) - G54-10 (GND) W - W-B Center differential lock switch input

      Ignition switch ON

      Center differential lock switch not pressed

      		 9.5 to 14 V

      Ignition switch ON

      Center differential lock switch pressed and held

      		 Below 1.5 V
      G53-7 (HL2) - G54-10 (GND) LG - W-B High-low transfer limit switch input

      Ignition switch ON

      Shift lever in neutral*1

      Shift lever in N*2

      Transfer high

      When transfer is in neutral*1

      		 Below 1.5 V

      Ignition switch ON

      Shift lever in neutral*1

      Shift lever in N*2

      Switching between transfer high and low

      		 Below 1.5 V ←→ 10.5 to 14 V

      Ignition switch ON

      Shift lever in neutral*1

      Shift lever in N*2

      Transfer low

      		 10.5 to 14 V
      G53-8 (HL1) - G54-10 (GND) GR - W-B High-low transfer limit switch input

      Ignition switch ON

      Shift lever in neutral*1

      Shift lever in N*2

      Transfer high

      		 10.5 to 14 V

      Ignition switch ON

      Shift lever in neutral*1

      Shift lever in N*2

      Switching between transfer high and low

      		 10.5 to 14 V ←→ Below 1.5 V

      Ignition switch ON

      Shift lever in neutral*1

      Shift lever in N*2

      Transfer low

      		 Below 1.5 V
      G53-9 (TL3) - G54-10 (GND) G - W-B Center differential lock limit switch input

      Ignition switch ON

      Center differential free

      		 Below 1.5 V

      Ignition switch ON

      Switching center differential between free and lock

      		 Below 1.5 V

      Ignition switch ON

      Center differential lock

      		 10.5 to 14 V
      G53-10 (TL2) - G54-10 (GND) V - W-B Center differential lock limit switch input

      Ignition switch ON

      Center differential free

      		 10.5 to 14 V

      Ignition switch ON

      Switching center differential between free and lock

      		 Below 1.5 V

      Ignition switch ON

      Center differential lock

      		 Below 1.5 V
      G53-13 (LO) - G54-10 (GND) GR - W-B Transfer position switch input

      Ignition switch ON

      Transfer position switch H4

      		 10 to 14 V

      Ignition switch ON

      Transfer position switch L4

      		 Below 1.5 V
      G53-16 (L4) - G54-10 (GND) R - W-B L4 output signal

      Ignition switch ON

      Transfer high

      		 10 to 14 V

      Ignition switch ON

      Transfer low

      		 Below 1.5 V
      G53-18 (MTN) - G54-10 (GND)*1 B - W-B Clutch start switch input

      Ignition switch ON

      Clutch pedal released

      		 9.5 to 14 V

      Ignition switch ON

      Clutch pedal depressed

      		 Below 1.5 V
      G53-20 (CANH) - G53-40 (CANL) G - W CAN communication line

      Ignition switch off

      Cable disconnected from negative (-) battery terminal

      		 54 to 69 Ω
      G53-21 (+B) - G54-10 (GND) W - W-B ECU power supply Always 11 to 14 V
      G54-2 (HM1) - G54-10 (GND) B - W-B High-low transfer shift motor output

      Ignition switch ON

      Clutch pedal depressed*1

      Shift lever in N*2

      Transfer position switch switched from H4 to L4

      (Switching from transfer high to low)

      		 Below 1.5 V

      Ignition switch ON

      Clutch pedal depressed*1

      Shift lever in N*2

      Transfer position switch switched from L4 to H4

      (Switching from transfer low to high)

      		 10 to 14 V
      G54-4 (IG) - G54-10 (GND) R - W-B ECU and actuator power supply Ignition switch ON 11 to 14 V
      G54-6 (HM2) - G54-10 (GND) W - W-B High-low transfer shift motor output

      Ignition switch ON

      Clutch pedal depressed*1

      Shift lever in N*2

      Transfer position switch switched from H4 to L4

      (Switching from transfer high to low)

      		 10 to 14 V

      Ignition switch ON

      Clutch pedal depressed*1

      Shift lever in N*2

      Transfer position switch switched from L4 to H4

      (Switching from transfer low to high)

      		 Below 1.5 V
      G54-7 (TM2) - G54-10 (GND) V - W-B Center differential lock shift motor output

      Ignition switch ON

      Center differential lock switch pressed to switch from free to lock

      (Switching center differential from free to lock)

      		 Below 1.5 V

      Ignition switch ON

      Center differential lock switch pressed to switch from lock to free

      (Switching center differential from lock to free)

      		 10 to 14 V
      G54-8 (TM1) - G54-10 (GND) P - W-B Center differential lock shift motor output

      Ignition switch ON

      Center differential lock switch pressed to switch from free to lock

      (Switching center differential from free to lock)

      		 10 to 14 V

      Ignition switch ON

      Center differential lock switch pressed to switch from lock to free

      (Switching center differential from lock to free)

      		 Below 1.5 V
      G54-10 (GND) - Body ground W-B - Body ground GND Always Below 1 Ω

      • *1: for Manual Transmission

      • *2: for Automatic Transmission