METER / GAUGE SYSTEM TERMINALS OF ECU

  1. COMBINATION METER ASSEMBLY

    A011U5PE02

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I18-1 (B) - Body ground W - Body ground Battery Always 11 to 14 V
      I18-4 (ILL-) - Body ground SB - Body ground Illumination signal Light control switch off Below 1 V
      Light control switch on TAIL or HEAD position Pulse generation
      I18-6 (EP) - Body Ground W-B - Body ground Ground Always Below 1 Ω
      I18-7 (ES) - Body Ground BR - Body ground Ground Always Below 1 Ω
      I18-8 (SI) - Body ground P - Body ground Speed signal for other system (Input) Ignition switch ON, wheel being rotated

      Pulse generation

      (See waveform 1)
      I18-9 (+S) - Body ground V - Body ground Speed signal for other system (Output) Ignition switch ON, wheel being rotated

      Pulse generation

      (See waveform 1)
      I18-10 (SW) - Body ground G - Body ground Turn switch signal Ignition switch ON, turn LH and RH switch off 11 to 14 V
      Ignition switch ON, turn LH or RH switch on Below 1 V
      I18-11 (S) - Body ground B - Body ground Oil pressure signal Ignition switch ON, oil pressure warning light off 9 to 15 V
      Ignition switch ON, washer warning light on Below 1 V
      I18-12 (LVWG)*1 - Body ground P - Body ground Headlight leveling signal Ignition switch ON, leveling indicator light off 11 to 14 V
      Ignition switch ON, leveling indicator light on Below 1 V
      I18-13 (IG+) - Body ground L - Body ground Ignition switch signal Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V
      I18-15 (CANL) - Body ground W - Body ground CAN communication line - -
      I18-16 (CANH) - Body ground R - Body ground CAN communication line - -
      I18-17 (FE) - I18-18 (FR) V - GR Fuel signal Ignition switch ON, fuel level not low 4 to 14 V
      Ignition switch ON, fuel level low 4 V or less
      I18-19 (SW) - Body ground B - Body ground Brake fluid level signal Ignition switch ON, brake warning light off 11 to 14 V
      Ignition switch ON, brake warning light on Below 1 V
      I18-21 (CHG-) - Body ground SB - Body ground Charge warning light signal Ignition switch ON, charge warning light off 11 to 14 V
      Ignition switch ON, charge warning light on Below 1 V
      I18-22 (CHK) - Body ground R - Body ground MIL (Check engine warning light) signal Ignition switch ON, MIL off 11 to 14 V
      Ignition switch ON, MIL on Below 1 V
      I18-23 (MSSL)*2 - Body ground L - Body ground Steering pad switch assembly (DISP switch) signal Ignition switch ON, DISP switch not pressed 4 to 5 V
      Ignition switch ON, DISP switch pressed Below 1 V
      I18-24 (WLVL) - Body ground LG - Body ground Washer fluid level signal Ignition switch ON, washer fluid level indicator light off 11 to 14 V
      Ignition switch ON, washer fluid level indicator light on Below 1 V
      I17-1 (B) - Body ground R - Body ground Battery Always 11 to 14 V
      I17-3 (ER) - Body ground P - Body ground Turn RH switch signal Ignition switch ON, RH turn switch off 11 to 14 V
      Ignition switch ON, RH turn switch on Below 1 V
      I17-4 (EL) - Body ground L - Body ground Turn LH switch signal Ignition switch ON, LH turn switch off 11 to 14 V
      Ignition switch ON, LH turn switch on Below 1 V
      I17-5 (HAZ) - Body ground W - Body ground Hazard warning switch signal Ignition switch ON, hazard warning switch off 11 to 14 V
      Ignition switch ON, hazard warning switch on Below 1 V
      I17-7 (LL) - Body ground R - Body ground Turn LH indicator light signal Turn LH indicator light off 11 to 14 V
      Turn LH indicator light blinks 11 to 14 V ←→ Below 1 V
      I17-13 (LR) - Body ground G - Body ground Turn RH indicator light signal Turn RH indicator light off 11 to 14 V
      Turn RH indicator light blinks 11 to 14 V ←→ Below 1 V

      • *1: w/ Automatic Headlight Beam Level Control System

      • *2: w/ Multi-information Display

    2. Waveform 1 (Reference):

      A011UGUE03
      Item Condition
      Tool setting 5 V/DIV., 20 ms./DIV.
      Vehicle condition Wheel being rotated

      Tech Tips

      When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.

  2. CLOCK ASSEMBLY

    A011U7TE01

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I59-1 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      I59-5 (ILL+) - Body ground V - Body ground Illumination signal Light control switch off Below 1 V
      Light control switch TAIL or HEAD 11 to 14 V
      I59-6 (ACC) - Body ground P - Body ground Ignition switch signal Ignition switch off Below 1 V
      Ignition switch ACC 11 to 14 V
      I59-7 (B) - Body ground LG - Body ground Battery Always 11 to 14 V

  3. COMBINATION METER ASSEMBLY INNER CIRCUIT

    A011RTRE03
    A011SEFE01
    A011T7CE03