LIGHTING SYSTEM(for 5L-E) TERMINALS OF ECU


  1. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    B001H5NC01
    *A for LHD *B for RHD
    *1 Main Body ECU (Multiplex Network Body ECU) - -

    1. Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly.

      Click here

    2. Connect the driver side 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-32 (IG) - Body ground None - Body ground Ignition power supply Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      A-31 (BECU) - Body ground None - Body ground Battery power supply Always 11 to 14 V
      A-30 (ACC) - Body ground None - Body ground ACC power supply Ignition switch ACC 11 to 14 V
      Ignition switch off Below 1 V
      A-11 (GND1) - Body ground None - Body ground Ground Always Below 1 Ω

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

      Click here

    5. Measure the voltage and check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G64-1 (GCTY) - 2D-4 (GND1)*1 V - W-B Glass hatch courtesy light switch signal Glass hatch open Below 1 V
      Glass hatch closed

      Pulse generation

      (See waveform 1 or 2)
      G64-6 (RCTY) - 2D-4 (GND1) R - W-B Rear door courtesy light switch RH signal Rear door RH open Below 1 V
      Rear door RH closed 11 to 14 V
      G64-19 (BCTY) - 2D-4 (GND1) G - W-B Back door courtesy light switch signal Back door open Below 1 V
      Back door closed

      Pulse generation

      (See waveform 3 or 4)
      G65-3 (LCTY) - 2D-4 (GND1) V - W-B Rear door courtesy light switch LH signal Rear door LH open Below 1 V
      Rear door LH closed 11 to 14 V

      2D-15 (FRCY) - 2D-4 (GND1)*2

      2H-26 (FRCY) - 2D-4 (GND1)*3

      		 B - W-B Front door courtesy light switch RH signal Front door RH open Below 1 V
      Front door RH closed 11 to 14 V

      2I-27 (FLCY) - 2D-4 (GND1)*2

      2D-31 (FLCY) - 2D-4 (GND1)*3

      		 R - W-B Front door courtesy light switch LH signal Front door LH open Below 1 V
      Front door LH closed 11 to 14 V
      2D-18 (ILE) - 2D-4 (GND1) G - W-B Interior light signal Interior light on Below 1 V
      Interior light off 11 to 14 V
      G64-2 (DOMR) - 2D-4 (GND1) GR - W-B Battery saving control (interior light auto cut function) signal Battery saving control (interior light auto cut function) not operating Below 1 V
      Battery saving control (interior light auto cut function) operating 11 to 14 V

      *1: w/ Glass Hatch Opener System

      *2: for LHD

      *3: for RHD


      1. B001DE0E01

        Waveform 1

        Item Content
        Terminal No. (Symbol) G64-1 (GCTY) - 2D-4 (GND1)
        Tool setting 5 V/DIV., 20 ms./DIV.
        Condition Glass hatch closed
      2. B001H4LE01

        Waveform 2

        Item Content
        Terminal No. (Symbol) G64-1 (GCTY) - 2D-4 (GND1)
        Tool setting 5 V/DIV., 20 ms./DIV.
        Condition Glass hatch closed
      3. B001DE0E01

        Waveform 3

        Item Content
        Terminal No. (Symbol) G64-19 (BCTY) - 2D-4 (GND1)
        Tool setting 5 V/DIV., 20 ms./DIV.
        Condition Back door closed
      4. B001H4LE01

        Waveform 4

        Item Content
        Terminal No. (Symbol) G64-19 (BCTY) - 2D-4 (GND1)
        Tool setting 5 V/DIV., 20 ms./DIV.
        Condition Back door closed