POWER WINDOW CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

    A01WR0ZE02

    1. Disconnect the I12 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
      I12-2 (B) - I12-1 (GND) L - W-B Battery power supply Always 11 to 14 V
      I12-1 (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 I12 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
      I12-10 (UP) - I12-1 (GND) L - W-B Power window up operation Engine switch on (IG), multiplex network master switch off → up 11 to 14 V → Below 1 V
      I12-10 (UP) - I12-1 (GND) L - W-B Power window up operation Engine switch on (IG), door glass fully open → power window auto up operation → door glass fully closed 11 to 14 V → Below 1 V → 11 to 14 V
      I12-7 (DOWN) - I12-1 (GND) B - W-B Power window down operation Engine switch on (IG), multiplex network master switch off → down 11 to 14 V → Below 1 V
      I12-7 (DOWN) - I12-1 (GND) B - W-B Power window down operation Engine switch on (IG), 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

    A01WTVYE02

    1. Disconnect the I4 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
      I4-2 (B) - I4-1 (GND) L - W-B Battery power supply Always 11 to 14 V
      I4-1 (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 I4 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
      I4-10 (UP) - I4-1 (GND) L - W-B Power window up operation Engine switch on (IG), power window regulator switch off → up 11 to 14 V → Below 1 V
      I4-10 (UP) - I4-1 (GND) L - W-B Power window up operation Engine switch on (IG), door glass fully open → power window auto up operation → door glass fully closed 11 to 14 V → Below 1 V → 11 to 14 V
      I4-7 (DOWN) - I4-1 (GND) B - W-B Power window down operation Engine switch on (IG), power window regulator switch off → down 11 to 14 V → Below 1 V
      I4-7 (DOWN) - I4-1 (GND) B - W-B Power window down operation Engine switch on (IG), 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.

  3. CHECK REAR POWER WINDOW REGULATOR MOTOR LH

    A01WW0IE02

    1. Disconnect the J11 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
      J11-2 (B) - J11-1 (GND) L - W-B Battery power supply Always 11 to 14 V
      J11-1 (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 J11 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
      J11-10 (UP) - J11-1 (GND) L - W-B Power window up operation Engine switch on (IG), power window regulator switch off → up 11 to 14 V → Below 1 V
      J11-10 (UP) - J11-1 (GND) L - W-B Power window up operation Engine switch on (IG), door glass fully open → power window auto up operation → door glass fully closed 11 to 14 V → Below 1 V → 11 to 14 V
      J11-7 (DOWN) - J11-1 (GND) B - W-B Power window down operation Engine switch on (IG), power window regulator switch off → down 11 to 14 V → Below 1 V
      J11-7 (DOWN) - J11-1 (GND) B - W-B Power window down operation Engine switch on (IG), 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.

  4. CHECK REAR POWER WINDOW REGULATOR MOTOR RH

    A01WUCNE02

    1. Disconnect the J4 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
      J4-2 (B) - J4-1 (GND) L - W-B Battery power supply Always 11 to 14 V
      J4-1 (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 J4 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
      J4-10 (UP) - J4-1 (GND) L - W-B Power window up operation Engine switch on (IG), power window regulator switch off → up 11 to 14 V → Below 1 V
      J4-10 (UP) - J4-1 (GND) L - W-B Power window up operation Engine switch on (IG), door glass fully open → power window auto up operation → door glass fully closed 11 to 14 V → Below 1 V → 11 to 14 V
      J4-7 (DOWN) - J4-1 (GND) B - W-B Power window down operation Engine switch on (IG), power window regulator switch off → down 11 to 14 V → Below 1 V
      J4-7 (DOWN) - J4-1 (GND) B - W-B Power window down operation Engine switch on (IG), 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.

  5. CHECK MULTIPLEX NETWORK MASTER SWITCH

    A01WVWCE02

    1. Disconnect the I11*1 or I22*2 master switch connector.

    2. Measure the resistance and voltage according to the value(s) in the table below.

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I11-11 (B) - I11-12 (GND) R - W-B Battery power supply Always 11 to 14 V
      I11-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I22-11 (B) - I22-12 (GND) R - W-B Battery power supply Always 11 to 14 V
      I22-12 (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 I11*1 or I22*2 master switch connector.

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

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I11-20 (UP) - I11-12 (GND) L - W-B Power window up operation Engine switch on (IG), driver door power window regulator switch not pushed or pulled 11 to 14 V
      I11-20 (UP) - I11-12 (GND) L - W-B Power window up operation Engine switch on (IG), driver door power window moving, driver door power window regulator switch pulled halfway up (Manual operation) Below 1 V
      I11-15 (DOWN) - I11-12 (GND) B - W-B Power window down operation Engine switch on (IG), driver door power window regulator switch not pushed or pulled 11 to 14 V
      I11-15 (DOWN) - I11-12 (GND) B - W-B Power window down operation Engine switch on (IG), driver door power window moving, driver door power window regulator switch pushed halfway down (Manual operation) Below 1 V
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I22-20 (UP) - I22-12 (GND) L - W-B Power window up operation Engine switch on (IG), driver door power window regulator switch not pushed or pulled 11 to 14 V
      I22-20 (UP) - I22-12 (GND) L - W-B Power window up operation Engine switch on (IG), driver door power window moving, driver door power window regulator switch pulled halfway up (Manual operation) Below 1 V
      I22-15 (DOWN) - I22-12 (GND) B - W-B Power window down operation Engine switch on (IG), driver door power window regulator switch not pushed or pulled 11 to 14 V
      I22-15 (DOWN) - I22-12 (GND) B - W-B Power window down operation Engine switch on (IG), driver door power window moving, driver door power window regulator switch pushed halfway down (Manual operation) Below 1 V

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

  6. CHECK FRONT PASSENGER SIDE POWER WINDOW REGULATOR SWITCH

    A01WU88E01

    1. Disconnect the I3*1 or I43*2 switch connector.

    2. Measure the resistance according to the value(s) in the table below.

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I3-5 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I43-5 (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 I3*1 or I43*2 switch connector.

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

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I3-2 (UP) - I3-5 (GND) L - W-B Power window up operation Engine switch on (IG), power window regulator switch off → up 11 to 14 V → Below 1 V
      I3-10 (DOWN) - I3-5 (GND) B - W-B Power window down operation Engine switch on (IG), power window regulator switch off → down 11 to 14 V → Below 1 V
      I3-4 (AUTO) - I3-5 (GND) R - W-B Power window up operation Engine switch on (IG)and door glass fully open → power window auto up operation → door glass fully closed 11 to 14 V → Below 1 V → 11 to 14 V
      I3-4 (AUTO) - I3-5 (GND) R - W-B Power window down operation Engine switch on (IG), door glass fully closed → power window auto down operation → door glass fully open 11 to 14 V → Below 1 V → 11 to 14 V
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I43-2 (UP) - I43-5 (GND) L - W-B Power window up operation Engine switch on (IG), power window regulator switch off → up 11 to 14 V → Below 1 V
      I43-10 (DOWN) - I43-5 (GND) B - W-B Power window down operation Engine switch on (IG), power window regulator switch off → down 11 to 14 V → Below 1 V
      I43-4 (AUTO) - I43-5 (GND) R - W-B Power window up operation Engine switch on (IG)and door glass fully open → power window auto up operation → door glass fully closed 11 to 14 V → Below 1 V → 11 to 14 V
      I43-4 (AUTO) - I43-5 (GND) R - W-B Power window down operation Engine switch on (IG), 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 switch may be malfunctioning.

  7. CHECK REAR POWER WINDOW REGULATOR SWITCH LH

    A01WR6RE02

    1. Disconnect the J20 switch connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      J20-5 (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 J20 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
      J20-2 (UP) - J20-5 (GND) L - W-B Power window up operation Engine switch on (IG), power window regulator switch off → up 11 to 14 V → Below 1 V
      J20-10 (DOWN) - J20-5 (GND) B - W-B Power window down operation Engine switch on (IG), power window regulator switch off → down 11 to 14 V → Below 1 V
      J20-4 (AUTO) - J20-5 (GND) R - W-B Power window up operation Engine switch on (IG), door glass fully open → power window auto up operation → door glass fully closed 11 to 14 V → Below 1 V → 11 to 14 V
      J20-4 (AUTO) - J20-5 (GND) R - W-B Power window down operation Engine switch on (IG), 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 switch may be malfunctioning.

  8. CHECK REAR POWER WINDOW REGULATOR SWITCH RH

    A01WSRCE02

    1. Disconnect the J19 switch connector.

    2. Measure the resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      J19-5 (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 J19 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
      J19-2 (UP) - J19-5 (GND) L - W-B Power window up operation Engine switch on (IG), power window regulator switch off → up 11 to 14 V → Below 1 V
      J19-10 (DOWN) - J19-5 (GND) B - W-B Power window down operation Engine switch on (IG), power window regulator switch off → down 11 to 14 V → Below 1 V
      J19-4 (AUTO) - J19-5 (GND) R - W-B Power window up operation Engine switch on (IG), door glass fully open → power window auto up operation → door glass fully closed 11 to 14 V → Below 1 V → 11 to 14 V
      J19-4 (AUTO) - J19-5 (GND) R - W-B Power window down operation Engine switch on (IG), 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 switch may be malfunctioning.

  9. CHECK MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

    A01WQ2DE02

    1. Remove the main body ECU (multiplex network body ECU) from the cowl side junction block LH Click here

    2. Measure the resistance and voltage according to value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      A-11 (GND1) - Body ground None - Body ground Ground Always Below 1 Ω
      A-31 (BECU) - Body ground None - Body ground Ground Always Below 1 Ω
      E118-6 (FLCY) - Body ground V - Body ground

      Driver side door courtesy light switch input*1

      Front passenger side door courtesy light switch input*2

      Driver side door open*1

      Front passenger side door open*2

      		 Below 1 Ω

      Driver side door closed*1

      Front passenger side door closed*2

      		 10 kΩ or higher
      E118-27 (FRCY) - Body ground V - Body ground

      Driver side door courtesy light switch input*2

      Front passenger side door courtesy light switch input*21

      Driver side door open*2

      Front passenger side door open*1

      		 Below 1 Ω

      Driver side door closed*2

      Front passenger side door closed*1

      		 10 kΩ or higher
      E118-29 (L2) - Body ground G - Body ground Driver door key-linked lock input Driver door key cylinder turned to lock Below 1 V
      Driver door key cylinder off Pulse generation
      E118-2 (UL3) - Body ground P - Body ground Driver door key-linked unlock input Driver door key cylinder turned to unlock Below 1 V
      Driver door key cylinder off Pulse generationr

      Tech Tips


      • *1: for LHD

      • *2: for RHD


      • If the result is not as specified, the wire harness side may have a malfunction.