POWER WINDOW CONTROL SYSTEM(w/o Jam Protection Function) TERMINALS OF ECU

  1. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

    B318850E02
    1. Disconnect the J5 power window regulator master switch assembly connector.

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

      Tip:

      Measure the values on the wire harness side with the connector disconnected.

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      J5-1 (E) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      J5-6 (B) - J5-1 (E)

      L - W-B

      IG power supply

      Ignition switch ON

      11 to 14 V

      Ignition switch off

      Below 1 V

    3. Reconnect the J5 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

      J5-3 (U) - J5-1 (E)

      R - W-B

      Driver door power window motor UP output

      Ignition switch ON, driver door power window switch off

      11 to 14 V

      Ignition switch ON, driver door power window switch up (Manual operation)

      Below 1 V

      J5-4 (D) - J5-1 (E)

      GR - W-B

      Driver door power window motor DOWN output

      Ignition switch ON, driver door power window switch off

      11 to 14 V

      Ignition switch ON, driver door power window switch down (Manual operation)

      Below 1 V

      J5-16 (U) - J5-1 (E)

      G - W-B

      Front passenger power window motor UP output

      Ignition switch ON, front passenger door power window switch off

      Below 1 V

      Ignition switch ON, front passenger door power window switch up (Manual operation)

      11 to 14 V

      J5-15 (D) - J5-1 (E)

      BR - W-B

      Front passenger power window motor DOWN output

      Ignition switch ON, front passenger door power window switch off

      Below 1 V

      Ignition switch ON, front passenger door power window switch down (Manual operation)

      11 to 14 V

      J5-12 (U) - J5-1 (E)

      R - W-B

      Rear door LH power window motor UP output

      Ignition switch ON, rear door LH power window switch off

      Below 1 V

      Ignition switch ON, rear door LH power window switch up (Manual operation)

      11 to 14 V

      J5-13 (D) - J5-1 (E)

      BE - W-B

      Rear door LH power window motor DOWN output

      Ignition switch ON, rear door LH power window switch off

      Below 1 V

      Ignition switch ON, rear door LH power window switch down (Manual operation)

      11 to 14 V

      J5-10 (U) - J5-1 (E)

      G - W-B

      Rear door RH power window motor UP output

      Ignition switch ON, rear door RH power window switch off

      Below 1 V

      Ignition switch ON, rear door RH power window switch up (Manual operation)

      11 to 14 V

      J5-18 (D) - J5-1 (E)

      BR - W-B

      Rear door RH power window motor DOWN output

      Ignition switch ON, rear RH door power window switch off

      Below 1 V

      Ignition switch ON, rear RH door power window switch down (Manual operation)

      11 to 14 V

  2. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    C278789E03
    C278790C06

    *A

    Main Body ECU (Multiplex Network Body ECU) with 1 Connector

    *B

    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).

      Click here

    2. Connect the instrument panel junction block assembly connectors.

    3. 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-11 (GND1) - Body ground

      None - Body ground

      Ground

      Always

      Below 1 Ω

      A-30 (BECU) - Body ground

      None - Body ground

      Battery power supply

      Always

      11 to 14 V

      A-29 (ACC) - Body ground

      None - Body ground

      ACC power supply

      Ignition switch ACC

      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

    4. Install the main body ECU (multiplex network body ECU).

      Click hereClick here

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

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      3C-44 - Body ground

      R - Body ground

      Power window relay operation signal

      Ignition switch ON

      11 to 14 V

      Ignition switch off

      Below 1 V