POWER WINDOW CONTROL SYSTEM > TERMINALS OF ECU

for Preparation Click here



CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (ON DRIVER DOOR) (POWER WINDOW ECU)

B121517E04

  1. Disconnect the H4*1 or G9*2 motor connector (on the driver side).

  2. Measure the resistance and voltage of the wire harness side connector.

    for LHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    GND (H4-1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    B (H4-2) - GND (H4-1)
    		GR - W-B
    		Battery power supply
    		Always
    		9 to 14 V
    UP (H4-10) - DOWN (H4-7)
    		P - W
    		Driver side door power window regulator motor UP DOWN
    		Always
    		Below 1 Ω

    for RHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    GND (G9-1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    B (G9-2) - GND (G9-1)
    		GR - W-B
    		Battery power supply
    		Always
    		9 to 14 V
    UP (G9-10) - DOWN (G9-7)
    		W - B
    		Driver side door power window regulator motor UP DOWN
    		Always
    		Below 1 Ω
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the H4*1 or G9*2 motor connector (on the driver side).

  4. Measure the voltage of the connector.

    for LHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    LED (H4-5) - GND (H4-1)
    		SB - W-B
    		Ignition power supply
    		Ignition switch on (IG)
    		9 to 14 V

    for RHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    LED (G9-5) - GND (G9-1)
    		LG - W-B
    		Ignition power supply
    		Ignition switch on (IG)
    		9 to 14 V
    If the result is not as specified, the motor may have a malfunction.

CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

B112771E16

  1. Disconnect the H2*1 or G8*2 switch connector.

  2. Measure the resistance and voltage of the wire harness side connector.

    for LHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E (H2-1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    B (H2-6) - Body ground
    		L - Body ground
    		Ignition power supply
    		Ignition switch on (IG)
    		9 to 14 V
    B (H2-6) - Body ground
    		L - Body ground
    		Ignition power supply
    		Ignition switch off
    		Below 1 V

    for RHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E (G8-9) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    B (G8-6) - Body ground
    		L - Body ground
    		Ignition power supply
    		Ignition switch on (IG)
    		9 to 14 V
    B (G8-6) - Body ground
    		L - Body ground
    		Ignition power supply
    		Ignition switch off
    		Below 1 V
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the H2*1 or G8*2 switch connector.

  4. Reset the power window regulator motor.

  5. Measure the voltage of the connector.

    for LHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    U (H2-8) - E (H2-1)
    		P - W-B
    		Driver side door power window regulator motor UP output
    		Ignition switch on (IG), driver power window regulator switch off
    		9 to 14 V
    U (H2-8) - E (H2-1)
    		P - W-B
    		Driver side door power window regulator motor UP output
    		Ignition switch on (IG), driver side power window regulator switch UP (manual operation)
    		9 to 14 V → Below 1 V
    U (H2-8) - E (H2-1)
    		P - W-B
    		Driver side door power window regulator motor UP output
    		Ignition switch on (IG), driver side power window fully open → driver side power window regulator switch UP (AUTO operation) → driver side power window fully closed
    		Below 1 V → 9 to 14 V → Below 1 V
    D (H2-5) - E (H2-1)
    		W - W-B
    		Driver side door power window regulator motor DOWN output
    		Ignition switch on (IG), driver side power window regulator switch DOWN (manual operation)
    		Below 1 V → 9 to 14 V
    D (H2-5) - E (H2-1)
    		 W - W-B
    		Driver side door power window regulator motor DOWN output
    		Ignition switch on (IG), driver side power window fully closed → driver side power window regulator switch DOWN (AUTO operation) → driver side power window fully open
    		Below 1 V → 9 to 14 V → Below 1 V

    for RHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    U (G8-1) - E (G8-9)
    		W - W-B
    		Driver side door power window regulator motor UP output
    		Ignition switch on (IG), driver power window regulator switch off
    		9 to 14 V
    U (G8-1) - E (G8-9)
    		W - W-B
    		Driver side door power window regulator motor UP output
    		Ignition switch on (IG), driver side power window regulator switch UP (manual operation)
    		9 to 14 V → Below 1 V
    U (G8-1) - E (G8-9)
    		W - W-B
    		Driver side door power window regulator motor UP output
    		Ignition switch on (IG), driver side power window fully open → driver side power window regulator switch UP (AUTO operation) → driver side power window fully closed
    		Below 1 V → 9 to 14 V → Below 1 V
    D (G8-5) - E (G8-9)
    		B - W-B
    		Driver side door power window regulator motor DOWN output
    		Ignition switch on (IG), driver side power window regulator switch off → DOWN (manual operation)
    		Below 1 V → 9 to 14 V
    D (G8-5) - E (G8-9)
    		B - W-B
    		Driver side door power window regulator motor DOWN output
    		Ignition switch on (IG), driver side power window fully closed → driver side power window regulator switch DOWN (AUTO operation) → driver side power window fully open
    		Below 1 V → 9 to 14 V → Below 1 V

CHECK POWER WINDOW REGULATOR SWITCH (for Passenger Side)

B121518E04

  1. Disconnect the G3*1 or H8*2 switch connector.

  2. Measure the voltage of the wire harness side connector.

    for LHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    B (G3-3) - Body ground
    		L - Body ground
    		Ignition power supply
    		Ignition switch on (IG)
    		9 to 14 V

    for RHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    B (H8-3) - Body ground
    		L - Body ground
    		Ignition power supply
    		Ignition switch on (IG)
    		9 to 14 V
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the G3*1 or H8*2 switch connector.

  4. Measure the voltage of the wire harness side connector.

    for LHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    B (G3-3) - D (G3-1)
    		L - B
    		Passenger side door power window regulator motor UP output
    		Ignition switch on (IG), front passenger window regulator switch off
    		Below 1 V
    B (G3-3) - D (G3-1)
    		L - B
    		Passenger side door power window regulator motor UP output
    		Ignition switch on (IG), front passenger window regulator switch UP
    		9 to 14 V
    B (G3-3) - U (G3-4)
    		L - Y
    		Passenger side door power window regulator motor DOWN output
    		Ignition switch on (IG), front passenger window regulator switch off
    		Below 1 V
    B (G3-3) - U (G3-4)
    		L - Y
    		Passenger side door power window regulator motor DOWN output
    		Ignition switch on (IG), front passenger window regulator switch DOWN
    		9 to 14 V

    for RHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    B (H8-3) - D (H8-1)
    		L - W
    		Passenger side door power window regulator motor UP output
    		Ignition switch on (IG), front passenger window regulator switch off
    		Below 1 V
    B (H8-3) - D (H8-1)
    		L - W
    		Passenger side door power window regulator motor UP output
    		Ignition switch on (IG), front passenger window regulator switch UP
    		9 to 14 V
    B (H8-3) - U (H8-4)
    		L - P
    		Passenger side door power window regulator motor DOWN output
    		Ignition switch on (IG), front passenger window regulator switch off
    		Below 1 V
    B (H8-3) - U (H8-4)
    		L - P
    		Passenger side door power window regulator motor DOWN output
    		Ignition switch on (IG), front passenger window regulator switch DOWN
    		9 to 14 V
    If the result is not as specified, there may be a malfunction.

CHECK POWER WINDOW REGULATOR SWITCH (for Rear Door Side)

B121518E07

  1. Disconnect the J1 or I1 switch connectors.

  2. Measure the voltage of the wire harness side connector.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    B (3) - Body ground
    		L - Body ground
    		Ignition power supply
    		Ignition switch off
    		Below 1 V
    B (3) - Body ground
    		L - Body ground
    		Ignition power supply
    		Ignition switch on (IG)
    		10 to 14 V
    U (4) - Body ground
    		R - Body ground
    		Power window motor UP output
    		Ignition switch on (IG), power window switch off → UP
    		Below 1 V → 10 to 14 V
    D (1) - Body ground
    		G - Body ground
    		Power window motor DOWN output
    		Ignition switch on (IG), power window switch off → DOWN
    		Below 1 V → 10 to 14 V
    SU (5) - Body ground
    		G - Body ground
    		Power window motor UP input (Remote)
    		Ignition switch on (IG), power window master switch off → UP (Remote)
    		Below 1 V → 10 to 14 V
    SD (2) - Body ground
    		BR - Body ground
    		Power window motor DOWN input (Remote)
    		Ignition switch on (IG), power window master switch off → UP (Remote)
    		Below 1 V → 10 to 14 V
    If the result is not as specified, there may be a malfunction on the wire harness side.

CHECK INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)

E124616E01

  1. Disconnect the IA, IB and IE junction block connectors.

  2. Disconnect the E18 ECU connector.

  3. Measure the voltage and resistance of the wire harness side connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    BECU (IB-30) - GND1 (IE-17)
    		R - W-B
    		Battery (power supply)
    		Always
    		9 to 14 V
    IG (IM-9) - GND1 (IE-17)
    		W - W-B
    		Ignition power supply
    		Ignition switch on (IG)
    		9 to 14 V
    IG (IM-9) - GND1 (IE-17)
    		W - W-B
    		Ignition power supply
    		Ignition switch off
    		Below 1 V
    DCTY (IA-21) - Body ground*1
    		W - Body ground
    		Driver side door courtesy light switch input
    		Driver side door closed
    		10 kΩ or higher
    DCTY (IA-21) - Body ground*1
    		W - Body ground
    		Driver side door courtesy light switch input
    		Driver side door open
    		Below 1 Ω
    PCTY (IC-14) - Body ground*1
    		BR - Body ground
    		Front passenger side door courtesy light switch input
    		Front passenger side door closed
    		10 kΩ or higher
    PCTY (IC-14) - Body ground*1
    		BR - Body ground
    		Front passenger side door courtesy light switch input
    		Front passenger side door open
    		Below 1 Ω
    DCTY (IC-6) - Body ground*2
    		BR - Body ground
    		Driver side door courtesy light switch input
    		Driver side door closed
    		10 kΩ or higher
    DCTY (IC-6) - Body ground*2
    		BR - Body ground
    		Driver side door courtesy light switch input
    		Driver side door open
    		Below 1 Ω
    PCTY (IA-24) - Body ground*2
    		W - Body ground
    		Front passenger side door courtesy light switch input
    		Front passenger side door closed
    		10 kΩ or higher
    PCTY (IA-24) - Body ground*2
    		W - Body ground
    		Front passenger side door courtesy light switch input
    		Front passenger side door open
    		Below 1 Ω
    LIN2 (E18-23) - Body ground
    		V - Body ground
    		LIN communication
    		Always
    		10 kΩ or higher
    GND1 (IE-17) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    *1: for LHD
    *2: for RHD
    If the result is not as specified, there may be a malfunction on the wire harness side.