METER / GAUGE SYSTEM (for General Countries) TERMINALS OF ECU


  1. COMBINATION METER ASSEMBLY

    A01KG6NE01
    A01KIMLE01
    Terminal No. Wire harness side
    C6 2 Headlight LH/RH
    3 Emission Control ECU
    5 Speed Sensor
    14 Low Oil Pressure Warning Switch
    16 Parking Brake Switch
    17 Turn Signal Flasher Relay
    24 Turn Signal Flasher Relay
    25 GND
    26 Fuel Sender Gauge
    27 DOME Fuse
    28 GAUGE Fuse
    29 TAIL Fuse
    30 GND
    31 GND
    34 E.F.I Engine Coolant Temperature Sensor
    35 Emission Control ECU
    36 Speed Sensor
    37 4P-OUT
    38 4P-OUT
    39 Low Oil Level Warning Switch
    C7 7 Alternator
    8 GAUGE Fuse
    10 GND
    12 Fuel Filter
    A01KHXFE01
    Symbols (Terminals No.) Wiring Color Terminal Description Condition Specified Condition
    BEAM (C9-2) - Body ground R-G - Body ground Hi-Beam signal Headlight dimmer switch Lo → Hi 10 to 14 V → Below 1 V
    GLOW (C6-3) - Body ground G-W Body ground GLOW signal GLOW indicator ON → OFF Below 1 V → 10 to 14 V
    SP EARTH (C6-5) - Body ground BR - Body ground Ground (Speed sensor) Always Below 1 Ω
    OIL-P (C6-14) - Body ground P-L - Body ground OIL pressure signal OIL/P warning light ON → OFF Below 1 V → 10 to 14 V
    BRAKE (C6-16) - Body ground B-Y - Body ground Brake signal Ignition switch ON, BRAKE warning light ON → OFF Below 1 V → 10 to 14 V
    TURN R (C6-17) - Body ground G-Y - Body ground Turn signal R Ignition switch ON, turn signal RH indicator OFF → ON Below 1 V → 10 to 14 V
    TURN L (C6-24) - Body ground G-B - Body ground Turn signal L Ignition switch ON, turn signal LH indicator OFF → ON Below 1 V → 10 to 14 V
    GND (C6-25) - Body ground W-B - Body ground Ground Always Below 1 Ω
    FUEL (C6-26) - Body ground Y - Body ground Fuel signal Ignition switch ON, fuel level is FULL → EMPTY Below 1 V → 4 to 7 V
    +BATT (C6-27) - Body ground L-Y - Body ground Battery Always 10 to 14 V
    IGN (C6-28) - Body ground R-L - Body ground Ignition switch signal Ignition switch OFF → ON Below 1 V → 10 to 14 V
    ILL+ (C6-29) - Body ground G - Body ground Illumination signal Tail light OFF → ON Below 1 V → 10 to 14 V
    ILL- (C6-30) - Body ground W-B - Body ground Ground Always Below 1 Ω
    GND (FUEL) (C6-31) - Body ground BR - Body ground Ground (FUEL) Always Below 1 Ω
    TEMP (C6-34) - Body ground R-L - Body ground Water temperature signal Ignition switch ON, Coolant temperature is 90°C (194°F) Below 1 V → 10 to 14 V
    TM (C6-35) - Body ground B - Body ground Tacho meter signal (Input) Engine running

    Puls generation

    (See waveform 1)
    SP (C6-36) - Body ground V-Y - Body ground Speed signal (Input) Ignition switch ON and turn the wheel slowly

    Puls generation

    (See waveform 2)
    4P-OUT (C6-37) - Body ground V-W - Body ground Speed signal (Output) Ignition switch ON and turn the wheel slowly

    Puls generation

    (See waveform 2)
    OIL LVL (C6-39) - Body ground B-R - Body ground Engine oil level signal Ignition switch ON, engine oil level warning light ON → OFF Below 1 V → 10 to 14 V
    CHG- (C7-7) - Body ground Y - Body ground Charge signal Engine running → Stopped Below 1 V → 10 to 14 V
    CHG+ (C7-8) - Body ground R-L - Body ground Charge signal Ignition switch OFF → ON Below 1 V → 10 to 14 V
    GND (ENGINE) (C7-10) - Body ground BR - Body ground Ground (Engine) Always Below 1 Ω
    FILTER (C7-12) - Body ground W - Body ground Fuel filter signal Fuel filter indicator ON → OFF Below 1 V → 10 to 14 V

    1. A01KIG3E01

      Waveform 1

      Waveform 1 (Reference):
      Item Contents
      Tool setting 5 V/DIV, 10 ms/DIV
      Vehicle condition Engine idle speed
    2. A01KIP0E01

      Waveform 2

      Waveform 2 (Reference):
      Item Contents
      Tool setting 5 V/DIV, 20 ms/DIV
      Vehicle condition Driving at approx. 20 km/h (12 mph)

      Tech Tips

      As vehicle speed increases, the cycle of the signal waveform narrows.