METER / GAUGE SYSTEM TERMINALS OF ECU


  1. CHECK COMBINATION METER ASSEMBLY

    A004HHEE03

    1. Measure the voltage and resistance of the wire harness side connector.

      Terminals No.

      (Symbol)

      Wiring Color Terminal Description Condition Specified Condition
      D7-1 (B) - Body ground R-W - Body ground Battery Always 11 to 14 V
      D7-2 (IG+) - Body ground W-G - Body ground Ignition switch signal Ignition switch off → ON Below 1 V → 11 to 14 V
      D7-6 (CANH) - Body ground BR - Body ground CAN communication line Ignition switch ON Pulse generation
      D7-7 (CANL) - Body ground BR-W - Body ground CAN communication line Ignition switch ON Pulse generation
      D7-9 (ILL-) - Body ground B-W - Body ground Light control rheostat output signal

      Ignition switch ON

      Light control rheostat all top open → all bottom open

      Below 1 V → 11 to 14 V
      D7-13 (P/SB) - Body ground BR-R - Body ground Front passenger seat inner belt output signal Front passenger seat is occupied and its seat belt unfastened → fastened Below 1 V → 11 to 14 V
      D7-14 (S) - Body ground LG - Body ground Engine oil pressure signal Engine oil pressure warning light ON → OFF Below 1 V → 11 to 14 V
      D7-15 (CHG-) - Body ground G - Body ground Charge warning light signal

      Engine start

      Charge warning light ON → OFF

      Below 1 V → 11 to 14 V
      D7-17 (LBL) - Body ground W-L - Body ground Brake fluid level warning light signal

      Ignition switch ON

      Brake fluid level warning light ON → OFF

      Below 1 V → 11 to 14 V
      D7-18 (ILL+) - Body ground V - Body ground Security warning light signal

      Ignition switch ON

      Security warning light blink → OFF

      Below 1 V ←→11 to 14 V→ 11 to 14 V
      D7-19 (LVWG) - Body ground*1 Y - Body ground Head light level warning light signal

      Ignition switch ON

      Head light level warning light ON → OFF

      Below 1 V → 11 to 14 V
      D7-20 (ES1) - Body ground B-Y - Body ground Ground Always Below 1 Ω
      D7-21 (LR) - Body ground GR - Body ground Right turn signal

      Ignition switch ON

      Right turn indicator light blink → OFF

      Below 1 V ←→11 to 14 V→ 11 to 14 V
      D7-22 (LL) - Body ground W-R - Body ground Left turn signal

      Ignition switch ON

      Left turn indicator light blink → OFF

      Below 1 V ←→11 to 14 V→ 11 to 14 V
      D7-24 (TAM) - D7-25 (SG-) L - W Ambient temperature sensor signal

      Ignition switch ON

      at 25°C (77°F)

      1.35 to 1.75 V
      D7-27 (L) - D7-28 (FS-) LG - L Fuel level signal Fuel level is FULL → EMPTY Below 1 V → 4.5 to 9.0 V
      D7-30 (E) - Body ground L-R - Body ground Light control rheostat ground Always Below 1 Ω
      D7-31 (TR) - Body ground Y - Body ground Light control rheostat input signal Light control rheostat all top open → all bottom open 510 Ω → 100 Ω
      D7-32 (T) - Body ground G-W - Body ground Ignition switch signal Ignition switch off → ON Below 1 V → 3.6 to 4.6 V
      D7-33 (TC) - Body ground BR - Body ground Light control rheostat signal Light control rheostat all top open → Light control rheostat (cancel switch) ON 10 kΩ or higher → Below 1 Ω
      D7-34 (DISP) - Body ground R - Body ground DISP switch signal DISP switch ON → OFF Below 1 Ω → 10 kΩ or higher
      D7-35 (CS) - Body ground*2 O - Body ground km/h / MPH switch signal km/h / MPH switch ON → OFF Below 1 Ω → 10 kΩ or higher
      D7-36 (TRIP) - Body ground P - Body ground ODO/TRIP switch signal ODO/TRIP switch ON → OFF Below 1 Ω → 10 kΩ or higher
      D7-37 (DBKL) - Body ground R-B - Body ground Driver seat inner belt input signal Driver seat is seat belt unfastened → fastened Below 1 V → 11 to 14 V
      D7-38 (PBKL) - Body ground R-G - Body ground Front passenger seat inner belt input signal Front passenger seat is occupied and its seat belt unfastened → fastened Below 1 V → 11 to 14 V
      D7-40 (ES2) - Body ground B-Y - Body ground Ground Always Below 1 Ω

      • *1: for HID Headlight

      • *2: w/ km/h / MPH Switch

      If the result is not as specified, the combination meter assembly may have a malfunction.