CLOCK SYSTEM TERMINALS OF ECU


  1. CLOCK ASSEMBLY (w/o Multi-information Display)

    Tech Tips

    Measure the voltage with the connector still connected.

    A017CJKE01
    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    E20-1 (B) - Body ground Y - Body ground Battery Always 11 to 14 V
    E20-2 (E) - Body ground BR - Body ground Ground Always Below 1 V
    E20-3 (ILL+) - Body ground GR - Body ground Illumination signal Ignition switch on (IG), light control switch OFF Below 1 V
    Ignition switch on (IG), light control switch TAIL/HEAD 11 to 14 V
    E20-4 (ACC) - Body ground L - Body ground Ignition switch signal (Accessory) Ignition switch off Below 1 V
    Ignition switch on (ACC) 11 to 14 V

    1. A017EKZE01

      Waveform (Reference): Using oscilloscope:

      Item Condition
      Tool setting 2 V/DIV., 1 ms./DIV.
      Vehicle condition Ignition switch on (IG), light control switch TAIL/HEAD

      Tech Tips

      Duty ratio changes as the illumination becomes darker (the period "A" shown in the illustration becomes longer).

  2. CLOCK ASSEMBLY (w/ Multi-information Display)

    Tech Tips

    Measure the voltage with the connector still connected.

    A017DDSE04
    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    E9-1 (IG) - Body ground P - Body ground Ignition switch signal Ignition switch off Below 1 V
    Ignition switch on (IG) 11 to 14 V
    E9-5 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
    E9-6 (+B) - Body ground Y - Body ground Battery Always 11 to 14 V
    E9-9 (CLK) - Body ground R - Body ground Multi-information display signal Ignition switch on (IG) Pulse generation
    E9-10 (DATA) - Body ground Y - Body ground Multi-information display signal Ignition switch on (IG) Pulse generation
    E9-11 (SYNC) - Body ground L - Body ground Multi-information display signal Ignition switch on (IG) Pulse generation
    E9-16 (SGND) - Body ground BR - Body ground Ground (Signal Ground) Always Always