POWER WINDOW CONTROL SYSTEM > TERMINALS OF ECU

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CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY (DRIVER SIDE)

B158006

  1. Disconnect the F4 or E4 power window regulator motor connector.

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

    for LHD 
    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    F4-2 (B) - Body ground
    		W - Body ground
    		Battery power supply
    		Always
    		11 to 14 V
    F4-1 (GND) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω

    for RHD 
    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E4-2 (B) - Body ground
    		W - Body ground
    		Battery power supply
    		Always
    		11 to 14 V
    E4-1 (GND) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the power window regulator motor connector.

  4. Measure the voltage according to the value(s) in the table below.

    for LHD 
    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    F4-10 (UP) - F4-1 (GND)
    		B - W-B
    		Power window UP operation
    		Ignition switch ON
    Power window regulator master switch
    OFF → UP
    		11 to 14 V → Below 1 V
    Ignition switch ON
    door glass fully open → power window AUTO UP operation → the door glass fully closed
    		11 to 14 V → Below 1 V → 11 to 14 V
    F4-7 (DOWN) - F4-1 (GND)
    		W - W-B
    		Power window DOWN operation
    		Ignition switch ON
    Power window regulator master switch
    OFF → DOWN
    		11 to 14 V → Below 1 V
    Ignition switch ON
    door glass fully closed → power window AUTO DOWN operation → the door glass fully closed
    		11 to 14 V → Below 1 V → 11 to 14 V
    F4-9 (LIN) - F4-1 (GND)
    		P - W-B
    		LIN communication signal
    		Ignition switch ON
    		Pulse generation

    for RHD 
    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E4-10 (UP) - E4-1 (GND)
    		B - W-B
    		Power window UP operation
    		Ignition switch ON
    Power window regulator master switch
    OFF → UP
    		11 to 14 V → Below 1 V
    Ignition switch ON
    door glass fully open → power window AUTO UP operation → the door glass fully closed
    		11 to 14 V → Below 1 V → 11 to 14 V
    E4-7 (DOWN) - E4-1 (GND)
    		W - W-B
    		Power window DOWN operation
    		Ignition switch ON
    Power window regulator master switch
    OFF → DOWN
    		11 to 14 V → Below 1 V
    Ignition switch ON
    door glass fully closed → power window AUTO DOWN operation → the door glass fully closed
    		11 to 14 V → Below 1 V → 11 to 14 V
    E4-9 (LIN) - E4-1 (GND)
    		P - W-B
    		LIN communication signal
    		Ignition switch ON
    		Pulse generation
    If the result is not as specified, the motor may be malfunctioning.


CHECK FRONT POWER WINDOW REGULATOR MOTOR (PASSENGER SIDE)

B158006

  1. Disconnect the E4 or F4 power window regulator motor connector.

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

    for LHD 
    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E4-2 (B) - Body ground
    		B - Body ground
    		Battery power supply
    		Always
    		11 to 14 V
    E4-1 (GND) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω

    for RHD 
    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    F4-2 (B) - Body ground
    		B - Body ground
    		Battery power supply
    		Always
    		11 to 14 V
    F4-1 (GND) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the power window regulator motor connector.

  4. Measure the voltage according to the value(s) in the table below.

    for LHD 
    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E4-10 (UP) - E4-1 (GND)
    		B - W-B
    		Power window UP operation
    		Ignition switch ON
    power window regulator switch
    OFF → UP
    		11 to 14 V → Below 1 V
    Ignition switch ON
    door glass fully open → power window AUTO UP operation → the door glass fully closed
    		11 to 14 V → Below 1 V → 11 to 14 V
    E4-7 (DOWN) - E4-1 (GND)
    		W - W-B
    		Power window DOWN operation
    		Ignition switch ON
    power window regulator switch
    OFF → DOWN
    		11 to 14 V → Below 1 V
    Ignition switch ON
    door glass fully closed → power window AUTO DOWN operation → the door glass fully closed
    		11 to 14 V → Below 1 V → 11 to 14 V
    E4-9 (LIN) - E4-1 (GND)
    		P - W-B
    		LIN communication signal
    		Ignition switch ON
    		Pulse generation
    E4-4 (AUTO) - E4-1 (GND)
    		L - W-B
    		Power window AUTO UP/DOWN operation
    		Ignition switch ON
    power window regulator switch
    OFF → AUTO UP/DOWN operation
    		11 to 14 V → Below 1 V

    for RHD 
    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    F4-10 (UP) - F4-1 (GND)
    		B - W-B
    		Power window UP operation
    		Ignition switch ON
    power window regulator switch
    OFF → UP
    		11 to 14 V → Below 1 V
    Ignition switch ON
    door glass fully open → power window AUTO UP operation → the door glass fully closed
    		11 to 14 V → Below 1 V → 11 to 14 V
    F4-7 (DOWN) - F4-1 (GND)
    		W - W-B
    		Power window DOWN operation
    		Ignition switch ON
    power window regulator switch
    OFF → DOWN
    		11 to 14 V → Below 1 V
    Ignition switch ON
    door glass fully closed → power window AUTO DOWN operation → the door glass fully closed
    		11 to 14 V → Below 1 V → 11 to 14 V
    F4-9 (LIN) - F4-1 (GND)
    		P - W-B
    		LIN communication signal
    		Ignition switch ON
    		Pulse generation
    F4-4 (AUTO) - F4-1 (GND)
    		L - W-B
    		Power window AUTO UP/DOWN operation
    		Ignition switch ON
    power window regulator switch
    OFF → AUTO UP/DOWN operation
    		11 to 14 V → Below 1 V
    If the result is not as specified, the motor may be malfunctioning.


CHECK POWER WINDOW REGULATOR MASTER SWITCH

B214278

  1. Disconnect the F1 or E1 power window regulator master switch connector.

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

    for LHD 
    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    F1-11 (B) - Body ground
    		BR - Body ground
    		Battery power supply
    		Always
    		11 to 14 V
    F1-12 (GND) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω

    for RHD 
    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E1-11 (B) - Body ground
    		BR - Body ground
    		Battery power supply
    		Always
    		11 to 14 V
    E1-12 (GND) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the power window regulator master switch connector.

  4. Measure the voltage according to the value(s) in the table below.

    for LHD 
    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    F1-20 (UP) - F1-12 (GND)
    		B - W-B
    		Driver side door power window UP operation
    		Ignition switch ON, driver side door power window regulator switch OFF → UP
    		11 to 14 V → Below 1 V
    Driver side door power window AUTO UP operation
    		Ignition switch ON, driver side door glass fully open → power window AUTO UP operation → driver side door glass fully closed
    		11 to 14 V → Below 1 V → 11 to 14 V
    F1-15 (DOWN) - F1-12 (GND)
    		W - W-B
    		Driver side door power window DOWN operation
    		Ignition switch ON, driver side door power window regulator switch OFF → DOWN
    		11 to 14 V → Below 1 V
    Driver side door power window AUTO DOWN operation
    		Ignition switch ON, driver side door glass fully closed → power window AUTO DOWN operation → driver side door glass fully open
    		11 to 14 V → Below 1 V → 11 to 14 V
    F1-17 (LIN1) - F1-12 (GND)
    		L - W-B
    		LIN communication signal
    		Ignition switch ON
    		Pulse generation

    for RHD 
    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E1-20 (UP) - E1-12 (GND)
    		B - W-B
    		Driver side door power window UP operation
    		Ignition switch ON, driver side door power window regulator switch OFF → UP
    		11 to 14 V → Below 1 V
    Driver side door power window AUTO UP operation
    		Ignition switch ON, driver side door glass fully open → power window AUTO UP operation → driver side door glass fully closed
    		11 to 14 V → Below 1 V → 11 to 14 V
    E1-15 (DOWN) - E1-12 (GND)
    		W - W-B
    		Driver side door power window DOWN operation
    		Ignition switch ON, driver side door power window regulator switch OFF → DOWN
    		11 to 14 V → Below 1 V
    Driver side door power window AUTO DOWN operation
    		Ignition switch ON, driver side door glass fully closed → power window AUTO DOWN operation → driver side door glass fully open
    		11 to 14 V → Below 1 V → 11 to 14 V
    E1-17 (LIN1) - E1-12 (GND)
    		P - W-B
    		LIN communication signal
    		Ignition switch ON
    		Pulse generation
    If the result is not as specified, the power window regulator master switch may be malfunctioning.


CHECK INSTRUMENT PANEL JUNCTION BLOCK

B210280E01


Text in Illustration 
*1
Instrument Panel Junction Block

  1. Remove the main body ECU.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    3F-11 (GND1) - Body ground
    		-
    		Ground
    		Always
    		Below 1 Ω
    3F-29 (ACC)*1 - Body ground
    		-
    		Ignition power supply
    (ACC signal)
    		Ignition switch ACC → off
    		11 to 14 V → Below 1 V
    3F-30 (BECU) - Body ground
    		-
    		+B (power system signal system) power supply
    		Always
    		11 to 14 V
    3F-32 (IG)*1 - Body ground
    		-
    		Ignition power supply (IG signal)
    		Ignition switch ON → off
    		11 to 14 V → Below 1 V
    *1: w/o Smart Entry and Start System
    If the result is not as specified, there may be a malfunction in the wire harness.

  3. Reinstall the main body ECU.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    3E-35 (FRCY) - Body ground
    		B - Body ground
    		Driver side door courtesy light switch signal
    		Driver side door closed → open
    Ignition switch ON
    Tongue plate fastened
    		Pulse generation → Below 1 V
    3C-27 (LIN2) - Body ground
    		P - Body ground
    		LIN communication line
    		Ignition switch ON
    		Pulse generation
    3C-28 (LIN2) - Body ground
    		L*1 - Body ground
    		LIN communication line
    		Ignition switch ON
    		Pulse generation
    Y*2 - Body ground

    1. *1: for LHD
    2. *2: for RHD
    If the result is not as specified, there may be a malfunction on the wire harness.