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Terminals Of Ecu

  1. CHECK POWER WINDOW REGULATOR MASTER SWITCH (FOR DOUBLE CAB): 
    Fig 1: Identifying Power Window Regulator Master Switch Connector Terminals (For Double Cab)
    G06087579Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the P9 power window regulator master switch connector.
    2. Measure the voltage and resistance of each of the wire harness side connector terminals.

      Standard: 

      CONNECTOR TERMINAL REFERENCE

      Symbol (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      E (P9-1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      B (P9-7) - E (P9-1) R - W-B Regulator motor power supply Always 10 to 14 V
      B (P9-7) - E (P9-1) R - W-B Master switch power supply Ignition switch OFF 0 V
      B (P9-7) - E (P9-1) R - W-B Master switch power supply ignition switch ON 10 to 14 V
      DU (P9-4) - DD (P9-9) L - L-B
      • Power window motor UP output
      • Power window motor DOWN output
      		 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 of the connector terminals.
      CONNECTOR TERMINAL REFERENCE

      Symbol (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      DU (P9-4) - E (P9-1) L - W-B Power window motor UP output Ignition switch ON, driver side power window switch OFF 0 V
      DU (P9-4) - E (P9-1) L - W-B Power window motor UP output Ignition switch ON, driver side power window switch UP 10 to 14 V
      DD (P9-9) - E (P9-1) L-B - W-B Power window motor DOWN output Ignition switch ON, driver side power window switch OFF 0 V
      DD (P9-9) - E (P9-1) L-B - W-B Power window motor DOWN output Ignition switch ON, driver side power window switch DOWN (manual operation) 10 to 14 V
      DD (P9-9) - E (P9-1) L-B - W-B Power window motor DOWN output Ignition switch ON, driver side power window fully closed → driver side power window switch DOWN (AUTO operation) → driver side power window fully open 0 V → 10 to 14 V → 0 V

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

    5. Check the illumination.
      1. When the ignition switch is turned to ON from OFF with the connector connected, check that the illumination (YELLOW) AUTO lights up.
  2. CHECK POWER WINDOW REGULATOR MASTER SWITCH (FOR ACCESS CAB): 
    Fig 2: Identifying Power Window Regulator Master Switch Connector Terminals (For Access Cab)
    G06087580Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the P9 power window regulator master switch connector.
    2. Measure the voltage and resistance of each of the wire harness side connector terminals.

      Standard: 

      CONNECTOR TERMINAL REFERENCE

      Symbol (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      E (P9-1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      B (P9-9) - E (P9-1) R - W-B Regulator motor power Always 10 to 14 V
      B (P9-9) - E (P9-1) R - W-B Master switch power supply Ignition switch OFF 0 V
      B (P9-9) - E (P9-1) R - W-B Master switch power supply ignition switch ON 10 to 14 V
      DU (P9-3) - DD (P9-4) L - L-B
      • Power window motor UP output
      • Power window motor DOWN output
      		 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 of the connector terminals.
      CONNECTOR TERMINAL REFERENCE

      Symbol (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      DU (P9-3) - E (P9-1) L - W-B Power window motor UP output Ignition switch ON, driver side power window switch OFF 0 V
      DU (P9-3) - E (P9-1) L - W-B Power window motor UP output Ignition switch ON, driver side power window switch UP 10 to 14 V
      DD (P9-4) - E (P9-1) L-B - W-B Power window motor DOWN output Ignition switch ON, driver side power window switch OFF 0 V
      DD (P9-4) - E (P9-1) L-B - W-B Power window motor DOWN output Ignition switch ON, driver side power window switch DOWN (manual operation) 10 to 14 V
      DD (P9-4) - E (P9-1) L-B - W-B Power window motor DOWN output Ignition switch ON, driver side power window fully closed → driver side power window switch DOWN (AUTO operation) → driver side power window fully open 0 V → 10 to 14 V → 0 V

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

    5. Check the illumination.
      1. When the ignition switch is turned to ON from OFF with the connector connected, check that the illumination (YELLOW) AUTO lights up.
  3. CHECK DRIVER SIDE J/B ASSEMBLY (MULTIPLEX NETWORK BODY ECU) 
    Fig 3: Identifying Driver Side J/B Assembly (Multiplex Network Body ECU) Connector Terminals
    G06087403Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the 1A, 1C, 1F, 1H, 11 and 1K driver side J/B connectors.
    2. Measure the voltage and resistance between each terminal of the wire harness side connectors and body ground.

      Standard: 

      CONNECTOR TERMINAL REFERENCE

      Symbol (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      ECUB (1C-16) - Body ground R - Body ground +B (ECUB) power supply Always 10 to 14 V
      ALTB (1A-6) - Body ground L - Body ground +B (power system, generator system) power supply Always 10 to 14 V
      PWS (1H-18) - Body ground W-B - Body ground PWR Relay ON signal Ignition switch OFF 0 V
      Ignition switch ON 10 to 14 V
      KSW (1K-10) - Body ground G-B - Body ground Key unlock warning switch Input No key in ignition key cylinder 10 kΩ or higher
      Key inserted ignition key cylinder Below 1 Ω
      DCTY (1F-7) - Body ground G-Y - Body ground Driver side courtesy switch input Driver side door CLOSED 10 kΩ or higher
      Driver side door OPEN Below 1 Ω
      PCTY (11-8) - Body ground R-B - Body ground Passenger side courtesy switch input Passenger side door CLOSED 10 kΩ or higher
      Passenger side door OPEN Below 1 Ω
      GND (1H-18) - 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 driver side J/B connectors.
    4. Measure the voltage between each terminal of the connector and body ground.

      Standard: 

      CONNECTOR TERMINAL REFERENCE

      Symbol (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      KSW (1K-10) - Body ground G-B - Body ground Key unlock warning switch input No key in ignition key cylinder 10 to 14 Vr
      Key inserted ignition key cylinder 0 V

      If the result is not as specified, the driver side J/B assembly (multiplex network body ECU) may have a malfunction.

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