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Terminals Of Ecu

  1. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 
    Fig 1: Identifying Terminals Of ECU (Power Window Regulator Master Switch Assembly)
    G04443737Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage of the switch connector.
      CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      GND (P12-2) - Body ground W-B - Body ground Always Below 1 V
      UP (P12-1) - GND (P12-2) Y - W-B Driver side power window does not operate Below 1 V
      Driver side power window moves upward 10 to 14 V
      KL (P12-4) - KEYEP (15-3) L-W - W-B Door key lock and unlock switch is in LOCK position Below 1 V
      Door key lock and unlock switch is in OFF position 10 to 14 V
      LMT (P12-5) - SGND (P12-13) L-Y - BR-B Except window full-close position Below 1 V
      Window full-close position 10 to 14 V
      WLSW (P12-6) - GND (P12-2) Y-B - W-B Window lock switch OFF 10 to 14 V
      Window lock switch ON Below 1 V
      MPX1 (P12-7) B Multiplex communication circuit -
      CPUB (P12-9) - GND (P12-2) L-W - W-B Always 10 to 14 V
      BDR (P12-10) - GND (P12-2) L - W-B Always 10 to 14 V
      DN (P12-11) - GND (P12-2) G - W-B Driver side power window does not operate Below 1 V
      Driver side power window moves downward 10 to 14 V
      KUL (P12-14) - KEYE (P12-3) G-B - W-B Door key lock and unlock switch is in OFF position 10 to 14 V
      Door key lock and unlock switch is in UNLOCK position Below 1 V
      PLS (P12-15) - SGND (P12-13) L-W - BR-B During power window operation Pulse generation
      Power window is not operated (pulse switch ON) Below 1 V
      Power window is not operated (pulse switch OFF) 10 to 14 V
      LSWD (P12-16) - KEYE (P12-3) L-B - W-B Driver door lock position switch ON 10 to 14 V
      Driver door lock position switch OFF Below 1 V
      SIG (P12-20) - GND (P12-2) B-W - W-B Ignition switch ON 10 to 14 V

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

  2. CHECK FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RH 
    Fig 2: Identifying Terminals Of ECU (Front Power Window Regulator Switch Assembly RH)
    G04443738Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage of the switch connector.
      FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RH

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      GND (P18-7) - Body ground W-B - Body ground Always Below 1 V
      DN (P18-1) - GND (P18-7) G - W-B Front passenger side power window does not operate Below 1 V
      Front passenger side power window moves downward 10 to 14 V
      LMT (P18-3) - SGND (P18-5) L-Y - BR-B Except window full-close position Below 1 V
      Window full-close position 10 to 14 V
      PLS (P18-4) - SGND (P18-5) L-W - BR-B During power window operation Below 1 V
      Power window is not operated (pulse switch ON) 10 to 14 V
      Power window is not operated (pulse switch OFF) Below 1 V
      UP (P18-6) - GND (P18-7) Y - W-B Front passenger side power window is not operating Below 1 V
      Front passenger side power window is moving upward 10 to 14 V
      MPX1 (P18-8) W Multiplex communication circuit -
      SEL1 (P18-9) - GND (P18-7) W-B - W-B Always Below 1 V
      SEL2 (P18-10) - GND (P18-7) W-B - W-B Always Below 1 V
      PCT (P18-11) - GND (P18-7) Y-B - W-B Ignition switch ON, power window lock switch OFF Below 1 V
      Ignition switch ON, power window lock switch ON 10 to 14 V
      BDR (P18-12) - GND (P18-7) L - W-B Always 10 to 14 V

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

  3. CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH 
    Fig 3: Identifying Terminals Of ECU (Rear Power Window Regulator Switch Connector LH)
    G04443739Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage of the switch connector.
      REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      GND (P19-7) - Body ground W-B - Body ground Always Below 1 V
      D (P19-1) - GND (P19-7) G - W-B Rear power window LH does not operate Below 1 V
      Rear power window LH moves downward 10 to 14 V
      LMT (P19-3) - SGND (P19-5) L-Y - BR-B Except window full-closed position Below 1 V
      Window full-closed position 10 to 14 V
      PLS (P19-4) - SGND (P19-5) L-W - BR-B During power window operation Below 1 V
      Power window is not operated (pulse switch ON) 10 to 14 V
      Power window is not operated (pulse switch OFF) Below 1 V
      U (P19-6) - GND (P19-7) Y - W-B Rear power window LH is not operating Below 1 V
      Rear power window LH is moving upward 10 to 14 V
      MPX1 (P19-8) W Multiplex communication circuit -
      SEL1 (P19-9) - GND (P19-7) W-B - W-B Always Below 1 V
      SEL2 (P19-10) - GND (P19-7) W-B - W-B Always Below 1 V
      PCTI (P19-11) - GND (P19-7) Y-B - W-B Ignition switch ON, power window lock switch OFF Below 1 V
      Ignition switch ON, power window lock switch ON 10 to 14 V
      BDR (P19-12) - GND (P19-7) L - W-B Always 10 to 14 V

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

  4. CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RH 
    Fig 4: Identifying Terminals Of ECU (Rear Power Window Regulator Switch Connector Terminal RH)
    G04443740Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage of the switch connector.
      REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RH

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      GND (P20-7) - Body ground W-B - Body ground Always Below 1 V
      D (P20-1) - GND (P20-7) G - W-B Rear power window RH does not operate Below 1 V
      Rear power window RH moves downward 10 to 14 V
      LMT (P20-3) - SGND (P20-5) L-Y - BR-B Except window full-closed position Below 1 V
      Window full-closed position 10 to 14 V
      PLS (P20-4) - SGND (P20-5) L-W - BR-B During power window operation Below 1 V
      Power window is not operated (pulse switch ON) 10 to 14 V
      Power window is not operated (pulse switch OFF) Below 1 V
      U (P20-6) - GND (P20-7) Y - W-B Rear power window RH is not operating Below 1 V
      Rear power window RH is moving upward 10 to 14 V
      MPX1 (P20-8) W Multiplex communication circuit -
      SEL1 (P20-9) - GND (P20-7) W-B - W-B Always Below 1 V
      SEL2 (P20-10) - GND (P20-7) W-B - W-B Always Below 1 V
      PCTI (P20-11) - GND (P20-7) Y-B - W-B Ignition switch ON, power window lock switch OFF Below 1 V
      Ignition switch ON, power window lock switch ON 10 to 14 V
      BDR (P20-12) - GND (P20-7) L - W-B Always 10 to 14 V

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

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