LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2021 >> Tundra Trail, RWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System (W/ Jam Protection Function) - Diagnostics - Introduction >> POWER WINDOW CONTROL SYSTEM (w/ Jam Protection Function) >> Terminals Of Ecu [08/2017 - ] >> Terminals Of Ecu [08/2017 - ]
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Terminals Of Ecu [08/2017 - ]

  1. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH 
    Fig 1: Front Power Window Regulator Motor LH Connector End View
    GTY752283Courtesy 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 P - Body ground Battery power supply Always 11 to 14 V
      N12-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    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) BR - 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) BR - 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: Front Power Window Regulator Motor RH Connector End View
    GTY752282Courtesy 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
      M11-4 (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
    5. Measure the pulse according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      M11-9 (LIN) - M11-1 (GND) L - W-B LIN communication signal Ignition switch ON Pulse generation
  3. CHECK POWER WINDOW REGULATOR MASTER SWITCH 
    Fig 3: Power Window Regulator Master Switch Connector End View
    GTY745893Courtesy 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 R - Body ground Battery power supply Always 11 to 14 V
      N2-13 (B) - Body ground G - 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
    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) BR - 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) BR - 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
  4. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 
    Fig 4: Main Body ECU Connector End Views
    GTY753077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *A Main Body ECU (Multiplex Network Body ECU) with 1 connector - -
    *1 Main Body ECU (Multiplex Network Body ECU) - -
    Fig 5: Main Body ECU Connector End Views
    GTY772097Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *A Main Body ECU (Multiplex Network Body ECU) with 3 connectors - -
    *1 Main Body ECU (Multiplex Network Body ECU) - -
    1. Remove the main body ECU (multiplex network body ECU) from the cowl side junction block LH.

      Refer to REMOVAL [08/2017 - 08/2019] , or refer to REMOVAL [08/2019 - ]

    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
      A-30 (ACC) - Body ground None - Body ground ACC power supply Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      A-32 (IG) - Body ground None - Body ground IG power supply Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      A-11 (GND1) - Body ground None - Body ground Body ground Always Below 1 Ω
      J165-6 (FLCY) - Body ground GR - Body ground Front door courtesy light switch LH signal Front door LH open Below 1 Ω
      Front door LH closed 10 kΩ or higher
      J165-27 (FRCY) - Body ground W - Body ground Front door courtesy light switch RH signal Front door RH open Below 1 Ω
      Front door RH closed 10 kΩ or higher
scientia non olet · About LEMON Manuals