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Terminals Of Ecu

  1. POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 
    Fig 1: Identifying P17 Switch ECU Connector Terminals
    G05541756Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the P17 switch connector.
    2. Measure the voltage and resistance of each terminal according to the value(s) in the table below.
      VOLTAGE AND RESISTANCE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      E (P17-1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      VOLTAGE AND RESISTANCE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      B (P17-3) - E (P17-1) G - W-B Power supply Ignition switch ON 11 to 14 V

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

    3. Reconnect the P17 switch connector and reset the power window motor.
    4. Measure the voltage according to the value(s) in the table below.
      VOLTAGE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      U (P17-5) - E (P17-1) Y - W-B Power window motor UP output Ignition switch ON, driver side power window switch OFF → UP (Manual operation) 0 V → 11 to 14 V
      D (P17-6) - E (P17-1) P - W-B Power window motor DOWN output Ignition switch ON, driver side power window switch OFF → DOWN (Manual operation) 0 V → 11 to 14 V
      SU (P17-10) - E (P17-1) GR - W-B Power window motor UP output Ignition switch ON, front passenger side power window switch OFF → UP (Manual operation) 0 V → 11 to 14 V
      SD (P17-4) - E (P17-1) B - W-B Power window motor DOWN output Ignition switch ON, front passenger side power window switch OFF → DOWN (Manual operation) 0 V → 11 to 14 V

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

  2. CHECK POWER WINDOW REGULATOR SWITCH ASSEMBLY (FRONT PASSENGER) 
    Fig 2: Identifying P15 Switch Connector Terminals
    G05541757Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the P15 switch connector.
    2. Measure the voltage according to the value(s) in the table below.
      VOLTAGE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      B (P15-4) - Body ground P - Body ground Power supply Ignition switch ON 11 to 14 V

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

    3. Reconnect the P15 switch connector and reset the power window motor.
    4. Measure the voltage according to the value(s) in the table below.
      VOLTAGE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      U (P15-3) - Body ground Y - Body ground Power window motor UP output Ignition switch ON, front passenger side power window switch OFF → UP (Manual operation) 0 V → 11 to 14 V
      D (P15-1) - Body ground G - Body ground Power window motor DOWN output Ignition switch ON, front passenger side power window switch OFF → DOWN (Manual operation) 0 V → 11 to 14 V

      If the result is not as specified, the power window regulator switch assembly may have a malfunction.

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