METER / GAUGE SYSTEM TERMINALS OF ECU


  1. COMBINATION METER ASSEMBLY

    A01CJF2E01

    Terminal No.

    (Symbols)

    		 Wiring Color Terminal Description Condition Specified Condition
    C5-2 (+) - Body ground LG - Body ground Beam indicator light signal Ignition switch ON, beam indicator light OFF Below 2 V
    Ignition switch ON, beam indicator light ON 20 to 28 V
    C5-4 (B) - Body ground L - Body ground Exhaust brake indicator light signal Ignition switch ON, exhaust brake indicator light OFF Below 2 V
    Ignition switch ON, exhaust brake indicator light ON 20 to 28 V
    C5-9 (+) - Body ground Y - Body ground Rear fog indicator light signal Ignition switch ON, rear fog indicator light OFF Below 2 V
    Ignition switch ON, rear fog indicator light ON 20 to 28 V
    C5-14 (S) - Body ground P-L - Body ground Engine oil pressure warning light signal Ignition switch ON, oil pressure warning light OFF 20 to 28 V
    Ignition switch ON, oil pressure warning light ON Below 2 V
    C5-16 (PKB) - Body ground B-Y - Body ground Brake warning light signal (Brake fluid level warning switch) Ignition switch ON, brake warning light OFF 20 to 28 V
    Ignition switch ON, brake warning light ON Below 2 V
    C5-17 (B) - Body ground G-Y - Body ground Turn signal flasher Ignition switch ON, turn signal RH indicator light OFF Below 2 V
    Ignition switch ON, turn signal RH indicator light ON 20 to 28 V
    C5-19 (PKBI) - Body ground P-B - Body ground Parking brake warning light signal and parking brake switch signal Ignition switch ON, parking brake warning light OFF and parking brake switch OFF Below 2 V
    Ignition switch ON, parking brake warning light ON and parking brake switch ON 20 to 28 V
    C5-24 (B) - Body ground G-B - Body ground Turn signal flasher Ignition switch ON, turn signal LH indicator light OFF Below 2 V
    Ignition switch ON, turn signal LH indicator light ON 20 to 28 V
    C5-25 (EI) - Body ground W-B - Body ground Ground (Signal ground) Always Below 2 V
    C5-26 (L) - Body ground G-W - Body ground Fuel level signal Ignition switch ON, fuel level low 15 to 21 V
    Ignition switch ON, fuel level full 20 to 28 V
    C5-27 (B) - Body ground L-Y - Body ground Battery Always 20 to 28 V
    C5-28 (IG+) - Body ground R-L - Body ground Ignition switch signal Ignition switch OFF Below 2 V
    Ignition switch ON 20 to 28 V
    C5-29 (ILL+) - Body ground G - Body ground Illumination signal Ignition switch ON, light control switch OFF Below 2 V
    Ignition switch ON, light control switch TAIL/HEAD position 20 to 28 V
    C5-30 (ILL-) - Body ground W-B - Body ground Ground (Illumination ground) Always Below 2 V
    C5-31 (SE) - Body ground BR - Body ground Ground (Signal ground) Always Below 2 V
    C5-34 (HI) - Body ground L - Body ground Engine coolant temperature signal Ignition switch ON, engine coolant temperature low 2 to 3 V
    Ignition switch ON, engine coolant temperature high 3.5 to 4 V
    C5-35 (S) - Body ground P - Body ground Tachometer signal Ignition switch ON, engine idle speed

    Pulse generation

    (See waveform 1)
    C5-36 (SI) - Body ground B - Body ground Speed signal (Input) Ignition switch ON, wheel turned slowly

    Pulse generation

    (See waveform 2)
    C5-40 (ESC) - Body ground R-Y - Body ground ABS warning light signal Ignition switch ON, ABS warning light OFF Below 2 V
    Ignition switch ON, ABS warning light ON 20 to 28 V
    C6-7 (CHG-) - Body ground V - Body ground Charge warning light signal Ignition switch OFF Below 2 V
    Ignition switch ON 20 to 28 V
    C6-8 (CHG+) - Body ground GR - Body ground Charge warning light signal Ignition switch ON, charge warning light OFF 20 to 28 V
    Ignition switch ON, charge warning light comes ON Below 2 V
    C6-10 (DPNR) - Body ground B - Body ground DPF warning light signal Ignition switch ON, DPF warning light OFF 20 to 28 V
    Ignition switch ON, DPF warning light ON Below 2 V
    C6-12 (EGW) - Body ground R - Body ground Sedimenter warning light signal Ignition switch ON, sedimenter warning light OFF 20 to 28 V
    Ignition switch ON, sedimenter warning light ON Below 2 V
    C6-23 (WRN) - Body ground Y-R - Body ground Check engine warning light signal Ignition switch ON, check engine warning light OFF 20 to 28 V
    Ignition switch ON, check engine warning light ON Below 2 V

    1. A01CIE6E04

      Waveform 1 (Reference): Using an oscilloscope:

      OK:
      Item Condition
      Tool setting 10 V/DIV., 10 ms./DIV.
      Vehicle condition Engine idle speed
    2. A01CGR1E07

      Waveform 2 (Reference): Using an oscilloscope:

      OK:
      Item Condition
      Tool setting 10 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.

  2. COMBINATION METER ASSEMBLY INNER CIRCUIT

    A01CGSFE02
    A01CILIE03
    Terminal No. (Symbols) Wire Harness Side
    C5 1 -
    2 (+) Light Control Switch
    3 -
    4 (B) ECM
    5 -
    6 -
    7 -
    8 -
    9 (S) Rear Fog Light Switch
    10 -
    11 -
    12 -
    13 -
    14 (S) Engine Oil Pressure Switch
    15 -
    16 (PKB) Parking Brake Switch
    17 Turn Signal Flasher (B)
    18 -
    19 (PKBI) Skid Control ECU
    20 -
    21 -
    22 -
    23 -
    24 (B) Turn Signal Flasher
    25 (E1) Ground
    26 (L) Fuel Sender Gauge Assembly
    27 (B) ECU+B Fuse
    28 (IG+) GAUGE Fuse
    29 (ILL+) TAIL Fuse
    30 (ILL-) Ground (Illumination Ground)
    31 (SE) Vehicle Speed Sensor
    32 -
    33 -
    34 (HI) Engine Coolant Temperature Sensor
    35 (TAC) ECM
    36 (SI) Tachograph
    37 -
    38 -
    39 -
    40 (ESC) Skid Control ECU
    C6 1 -
    2 -
    3 -
    4 -
    5 -
    6 -
    7 (CHG-) Generator
    8 (B) Generator
    9 -
    10 (DPNR) ECM
    11 -
    12 (EGW) Fuel Sedimenter Warning Switch
    13 -
    14 -
    15 -
    16 -
    17 -
    18 -
    19 -
    20 -
    21 -
    22 -
    23 (WRN) ECM
    24 -