Transfer System Terminals Of Ecu

  1. CHECK 4 WHEEL DRIVE CONTROL ECU

Transfer System -- Terminals Of Ecu



CHECK 4 WHEEL DRIVE CONTROL ECU

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Vf4Bm Transfer 4Wd Awd.Transfer System.Transfer System Terminals Of Ecu

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

    for 1GR-FE, 1KD-FTV, 1GD-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. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Vf4Bm Transfer 4Wd Awd.Transfer System.Transfer System Terminals Of Ecu

  2. 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
    Text in Illustration
    *1
    		Waveform 1
    HINT:
    The waveform varies depending on the CAN communication signal.


    3. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Vf4Bm Transfer 4Wd Awd.Transfer System.Transfer System Terminals Of Ecu

  3. 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
    Text in Illustration
    *1
    		Waveform 2
    HINT:
    The waveform varies depending on the CAN communication signal.