POWER WINDOW CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

    A01EPKFE17

    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

    A01EPKFE18

    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

    A01EPKFE19

    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

    A01EPKFE20

    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

    A01EN8YE20

    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) L - 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) L - 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), multiplex network master switch off → up 11 to 14 V → Below 1 V
      I11-20 (UP) - I11-12 (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
      I11-15 (DOWN) - I11-12 (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
      I11-15 (DOWN) - I11-12 (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
      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), multiplex network master switch off → up 11 to 14 V → Below 1 V
      I22-20 (UP) - I22-12 (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
      I22-15 (DOWN) - I22-12 (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
      I22-15 (DOWN) - I22-12 (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 master switch may be malfunctioning.

  6. CHECK FRONT PASSENGER SIDE POWER WINDOW REGULATOR SWITCH

    A01ES1YE13

    1. Disconnect the I3*1 or I28*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
      I28-5 (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 I28*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
      I28-2 (UP) - I28-5 (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
      I28-10 (DOWN) - I28-5 (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
      I28-4 (AUTO) - I28-5 (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
      I28-4 (AUTO) - I28-5 (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

    A01ES1YE14

    1. Disconnect the J10 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
      J10-5 (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 J10 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
      J10-2 (UP) - J10-5 (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
      J10-10 (DOWN) - J10-5 (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
      J10-4 (AUTO) - J10-5 (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
      J10-4 (AUTO) - J10-5 (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

    A01ES1YE15

    1. Disconnect the J3 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
      J3-5 (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 J3 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
      J3-2 (UP) - J3-5 (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
      J3-10 (DOWN) - J3-5 (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
      J3-4 (AUTO) - J3-5 (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
      J3-4 (AUTO) - J3-5 (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)

    A01EOTKE06

    1. Disconnect the 2A, 2C, E1, E2 and E3 ECU connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E3-1 (GND3) - 2D-62 (GND2) BR - W-B Ground Always Below 1 Ω
      2D-62 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      2A-1 (+B) - Body ground B - Body ground Battery power supply Always 11 to 14 V
      2A-1 (IG) - Body ground B - Body ground IG power supply Always 11 to 14 V
      E2-1 (AM2) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      E1-6 (AM1) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      E1-24 (DCTY) - Body ground

      L - Body ground*1

      P - Body ground*2

      		 Driver side door courtesy light switch input Driver side door open Below 1 Ω
      Driver side door closed 10 kΩ or higher
      E2-21 (PCTY) - Body ground

      P - Body ground*1

      L - Body ground*2

      		 Front passenger side door courtesy light switch input Front passenger side door open Below 1 Ω
      Front passenger side door closed 10 kΩ or higher
      E2-7 (RCTY) - Body ground G - Body ground Rear RH side door courtesy light switch input Rear RH side door open Below 1 Ω
      Rear RH side door closed 10 kΩ or higher
      2C-2 (LCTY) - Body ground W - Body ground Rear LH side door courtesy light switch input Rear LH side door open Below 1 Ω
      Rear LH side door closed 10 kΩ or higher

      Tech Tips


      • *1: for LHD

      • *2: for RHD


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