LEMON Manuals: Even more car manuals for everyone
Home >> Scion >> 2013 >> iQ Base >> Repair and Diagnosis (Single Page) >> Body & Frame >> Windows >> Power Window Control System (Diagnostics Introduction) (Except Electric) >> Power Window Control System >> Terminals Of Ecu >> Terminals Of Ecu

Terminals Of Ecu

  1. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (DRIVER SIDE) 
    Fig 1: Power Window Regulator Motor Assembly LH Connector Terminal Identification
    GTY346307Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the F4 power window regulator motor assembly LH (driver side) connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      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

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

    3. Reconnect the power window regulator motor assembly LH (driver side) connector.
    4. Measure the voltage according to the value(s) in the table below.
      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

      If the result is not as specified, the motor may be malfunctioning.

  2. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (PASSENGER SIDE) 
    Fig 2: Power Window Regulator Motor Assembly RH Connector Terminal Identification
    GTY346308Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E4 power window regulator motor assembly RH (passenger side) connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      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

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

    3. Reconnect the power window regulator motor assembly RH (passenger side) connector.
    4. Measure the voltage according to the value(s) in the table below.
      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

      If the result is not as specified, the motor may be malfunctioning.

  3. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 
    Fig 3: Power Window Regulator Master Switch Assembly Connector Terminal Identification
    GTY346403Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the F1 power window regulator master switch assembly connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      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

      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 assembly connector.
    4. Measure the voltage according to the value(s) in the table below.
      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

      If the result is not as specified, the power window regulator master switch may be malfunctioning.

  4. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 
    Fig 4: Instrument Panel Junction Block Assembly Connector Terminal Identification
    GTY345759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TEXT IN ILLUSTRATION

    *a Instrument Panel Junction Block Assembly - -
    1. Remove the main body ECU from the instrument panel junction block assembly. Refer to REMOVAL - Step 6 .
    2. Measure the voltage and resistance according to the value(s) in the table below.

      HINT: 

      The instrument panel junction block assembly connectors must all be connected.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      3F-11 (GND1) - Body ground - Ground Always Below 1 Ω
      3F-29 (ACC) - 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) - Body ground - Ignition power supply (IG signal) Ignition switch ON → off 11 to 14 V → Below 1 V

      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 according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      3E-24 (FLCY) - Body ground G - 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-28 (LIN2) - Body ground L - Body ground LIN communication line Ignition switch ON Pulse generation

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

scientia non olet · About LEMON Manuals