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Terminals Of Ecu

  1. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 
    Fig 1: Identifying Power Window Regulator Master Switch ECU Connector Terminals
    G05391243Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E4 power window regulator master switch assembly connector.
    2. Measure the voltage and resistance of the wire harness side connector.

      Standard: 

      TERMINALS VOLTAGE REFERENCE

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      E4-6 (B) - Body ground L - Body ground Ignition power supply Ignition switch OFF Below 1 V
      E4-6 (B) - Body ground L - Body ground Ignition power supply Ignition switch ON 11 to 14 V
      E4-1 (E) - 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 E4 power window regulator master switch assembly connector.
    4. Measure the voltage of the connector.

      Standard voltage: 

      TERMINALS VOLTAGE REFERENCE

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      E4-3 (U) - E4-1 (E) P - W-B Power window motor UP output (driver side) Ignition switch ON, driver side power window switch OFF → UP (manual operation) Below 1 V → 11 to 14 V
      E4-4 (D) - E4-1 (E) W - W-B Power window motor DOWN output (driver side) Ignition switch ON, driver side power window switch OFF → DOWN (manual operation) Below 1 V → 11 to 14 V
      E4-4 (D) - E4-1 (E) W - W-B Power window motor DOWN output (driver side) Ignition switch ON, driver side power window fully closed → driver side power window switch DOWN (AUTO operation) → driver side power window fully open Below 1 V → 11 to 14 V → Below 1 V
      E4-16 (U) - E4-1 (E) G - W-B Power window motor UP output (passenger side) Ignition switch ON, passenger side power window switch OFF → UP Below 1 V → 11 to 14 V
      E4-15 (D) - E4-1 (E) BR- W-B Power window motor DOWN output (passenger side) Ignition switch ON, passenger side power window switch OFF → DOWN Below 1 V → 11 to 14 V
      E4-12 (U) - E4-1 (E) R - W-B Power window motor UP output (rear LH) Ignition switch ON, rear LH side power window switch OFF → UP Below 1 V → 11 to 14 V
      E4-13 (D) - E4-1 (E) L - W-B Power window motor DOWN output (rear LH) Ignition switch ON, rear LH side power window switch OFF → DOWN Below 1 V → 11 to 14 V
      E4-10 (U) - E4-1 (E) G - W-B Power window motor UP output (rear RH) Ignition switch ON, rear RH side power window switch OFF → UP Below 1 V → 11 to 14 V
      E4-18 (D) - E4-1 (E) BR - W-B Power window motor DOWN output (rear RH) Ignition switch ON, rear RH side power window switch OFF → DOWN Below 1V → 11 to 14 V

      If the result is not as specified, the master switch may have a malfunction.

    5. Check the AUTO light illumination.
      1. After turning the ignition switch ON, check that the AUTO light illuminates (green).
  2. CHECK FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RH 
    Fig 2: Identifying Front Power Window Regulator Switch RH Connector Terminals
    G05391244Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D3 front power window regulator switch assembly RH connector.
    2. Measure the voltage of the wire harness side connector.

      Standard voltage: 

      TERMINALS VOLTAGE REFERENCE

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      D3-3 (B) - Body ground L - Body ground Ignition power supply Ignition switch OFF Below 1 V
      D3-3 (B) - Body ground L - Body ground Ignition power supply Ignition switch ON 11 to 14 V
      D31-1 (D) - Body ground B - Body ground Power window motor DOWN output Ignition switch ON, power window switch OFF → DOWN Below 1 V → 11 to 14 V
      D3-2 (SD) - Body ground BR - Body ground Power window motor DOWN input (Remote) Ignition switch ON, power window master switch OFF → DOWN (Remote) Below 1 V → 11 to 14 V
      D3-4 (U) - Body ground Y - Body ground Power window motor UP output Ignition switch ON, power window switch OFF → UP Below 1 V → 11 to 14 V
      D3-5 (SU) - Body ground G - Body ground Power window motor UP input (Remote) Ignition switch ON, power window master switch OFF → UP (Remote) Below 1 V → 11 to 14 V

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

    3. Reconnect the D3 front power window regulator switch assembly RH connector.
  3. CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH 
    Fig 3: Identifying Rear Power Window Regulator Switch LH Connector Terminals
    G05391245Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the G1 rear power window regulator switch assembly LH connector.
    2. Measure the voltage of the wire harness side connector.

      Standard voltage: 

      TERMINALS VOLTAGE REFERENCE

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      G1-3 (B) - Body ground P - Body ground Ignition power supply Ignition switch OFF Below 1 V
      G1-3 (B) - Body ground P - Body ground Ignition power supply Ignition switch ON 11 to 14 V
      G1-4 (U) - Body ground G - Body ground Power window motor UP output Ignition switch ON, power window switch OFF → UP Below 1 V → 11 to 14 V
      G1-1 (D) - Body ground Y - Body ground Power window motor DOWN output Ignition switch ON, power window switch OFF → DOWN Below 1 V → 11 to 14 V
      G1-5 (SU) - Body ground R - Body ground Power window motor UP intput (Remote) Ignition switch ON, power window master switch OFF → UP (Remote) Below 1 V → 11 to 14 V
      G1-2 (SD) - Body ground L - Body ground Power window motor DOWN input (Remote) Ignition switch ON, power window master switch OFF → DOWN (Remote) Below 1 V → 11 to 14 V

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

    3. Reconnect the G1 rear power window regulator switch assembly LH connector.
  4. CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RH 
    Fig 4: Identifying Rear Power Window Regulator Switch RH Connector Terminals
    G05391246Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the F1 rear power window regulator switch assembly RH connector.
    2. Measure the voltage of the wire harness side connector.

      Standard voltage: 

      TERMINALS VOLTAGE REFERENCE

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      F1-3 (B) - Body ground L - Body ground Ignition power supply Ignition switch OFF Below 1 V
      F1-3 (B) - Body ground L - Body ground Ignition power supply Ignition switch ON 11 to 14 V
      F1-4 (U) - Body ground R - Body ground Power window motor UP output Ignition switch ON, power window switch OFF → UP Below 1 V → 11 to 14 V
      F1-1 (D) - Body ground G - Body ground Power window motor DOWN output Ignition switch ON, power window switch OFF → DOWN Below 1 V → 11 to 14 V
      F1-5 (SU) - Body ground G - Body ground Power window motor UP input (Remote) Ignition switch ON, power window master switch OFF → UP (Remote) Below 1 V → 11 to 14 V
      F1-2 (SD) - Body ground BR - Body ground Power window motor DOWN input (Remote) Ignition switch ON, power window master switch OFF → DOWN (Remote) Below 1 V → 11 to 14 V

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

    3. Reconnect the F1 rear power window regulator switch assembly RH connector.
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