POWER WINDOW CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY (DRIVER SIDE)

    A01187O

    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.

  2. CHECK FRONT POWER WINDOW REGULATOR MOTOR (PASSENGER SIDE)

    A01187O

    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.

  3. CHECK POWER WINDOW REGULATOR MASTER SWITCH

    A011B7N

    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.

  4. CHECK INSTRUMENT PANEL JUNCTION BLOCK

    A01179UE01
    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: for LHD

      • *2: for RHD

      If the result is not as specified, there may be a malfunction on the wire harness.