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Terminals Of Ecu

  1. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH 
    Fig 1: Identifying N12 Window Regulator Motor Connector
    GTY178385Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N12 motor 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
      N12-2 (B) - Body ground G - Body ground Battery power supply Always 11 to 14 V
      N12-1 (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 N12 motor connector.
    4. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      N12-10 (UP) - N12-1 (GND) BE - W-B Power window UP operation Ignition switch ON
      Master switch
      OFF → UP      		 11 to 14 V → Below 1 V
      N12-10 (UP) - N12-1 (GND) BE - W-B Power window UP operation Ignition switch ON
      Door glass fully open → power window AUTO UP operation → door glass fully closed      		 11 to 14 V → Below 1 V → 11 to 14 V
      N12-7 (DOWN) - N12-1 (GND) SB - W-B Power window DOWN operation Ignition switch ON
      Master switch
      OFF → DOWN      		 11 to 14 V → Below 1 V
      N12-7 (DOWN) - N12-1 (GND) SB - W-B Power window DOWN operation Ignition switch ON
      Door glass fully closed → power window AUTO DOWN operation → door glass fully open      		 11 to 14 V → Below 1 V → 11 to 14 V

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

  2. CHECK FRONT POWER WINDOW REGULATOR MOTOR RH 
    Fig 2: Identifying M11 Window Regulator Motor Connector
    GTY178386Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the M11 motor 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
      M11-2 (B) - Body ground V - Body ground Battery power supply Always 11 to 14 V
      M11-1 (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 M11 motor connector.
    4. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      M11-10 (UP) - M11-1 (GND) G - W-B Power window UP operation Ignition switch ON
      Power window regulator switch assembly
      OFF → UP      		 11 to 14 V → Below 1 V
      M11-10 (UP) - M11-1 (GND) G - W-B Power window UP operation Ignition switch ON
      Door glass fully open → power window AUTO UP operation → door glass fully closed      		 11 to 14 V → Below 1 V → 11 to 14 V
      M11-7 (DOWN) - M11-1 (GND) P - W-B Power window DOWN operation Ignition switch ON
      Power window regulator switch assembly
      OFF → DOWN      		 11 to 14 V → Below 1 V
      M11-7 (DOWN) - M11-1 (GND) P - W-B Power window DOWN operation Ignition switch ON
      Door glass fully closed → power window AUTO DOWN operation → door glass fully open      		 11 to 14 V → Below 1 V → 11 to 14 V
      M11-9 (LIN) - M11-1 (GND) L - W-B LIN communication signal Ignition switch ON Pulse generation
      M11-4 (AUTO) - M11-1 (GND) B - W-B Power window AUTO UP/DOWN operation Ignition switch ON
      Power window regulator switch assembly
      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 
    Fig 3: Identifying Power Window Regulator Master Switch N2 Connector Terminals
    GTY170179Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N2 master switch 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
      N2-3 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      N2-13 (B) - Body ground P - Body ground Battery power supply Ignition switch ON 11 to 14 V
      N2-1 (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 N2 master switch connector.
    4. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      N2-4 (UP) - N2-1 (E) BE - W-B Driver side door power window UP operation Ignition switch ON, driver side switch of master switch OFF → UP 11 to 14 V → Below 1 V
      N2-4 (UP) - N2-1 (E) BE - W-B 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
      N2-5 (DOWN) - N2-1 (E) SB - W-B Driver side door power window DOWN operation Ignition switch ON, driver side switch of master switch OFF → DOWN 11 to 14 V → Below 1 V
      N2-5 (DOWN) - N2-1 (E) SB - W-B 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
      N2-12 (U) - N2-1 (E) V - W-B Rear LH side door power window UP operation Ignition switch ON, rear LH switch of master switch OFF → UP Below 1 V → 11 to 14 V
      N2-15 (D) - N2-1 (E) B - W-B Rear LH side door power window DOWN operation Ignition switch ON, rear LH switch of master switch OFF → DOWN Below 1 V → 11 to 14 V
      N2-10 (U) - N2-1 (E) BE - W-B Rear RH side door power window UP operation Ignition switch ON, rear RH switch of master switch OFF → UP Below 1 V → 11 to 14 V
      N2-16 (D) - N2-1 (E) LG - W-B Rear RH side door power window DOWN operation Ignition switch ON, rear RH switch of master switch OFF → DOWN Below 1 V → 11 to 14 V

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

  4. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK) 
    Fig 4: Identifying Main Body ECU (Driver Side Junction Block) Connector Terminals
    GTY207748Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the J3, J4, DA and DD ECU connectors.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      DA-1 (ACC) - Body ground B - Body ground ACC power supply Always 11 to 14 V
      DA-1 (IG) - Body ground B - Body ground IG power supply Always 11 to 14 V
      DD-62 (GND1) - Body ground W-B - Body ground Body ground Always Below 1 Ω
      DD-62 (GND2) - Body ground W-B - Body ground Body ground Always Below 1 Ω
      J4-24 (DCTY) - Body ground BR - Body ground Front door courtesy light switch LH signal Front door LH open Below 1 Ω
      Front door LH closed 10 kΩ or higher
      J3-21 (PCTY) - Body ground BE - Body ground Front door courtesy light switch RH signal Front door RH open Below 1 Ω
      Front door RH closed 10 kΩ or higher

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

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