METER / GAUGE SYSTEM TERMINALS OF ECU


  1. COMBINATION METER ASSEMBLY

    B001H84E03

    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
      G6-5 (ET) - Body ground*1 G - Body ground Ground Always Below 1 Ω
      G6-6 (SW1) - Body ground B - Body ground Power source for light control rheostat Ignition switch ON 4.6 to 5.4 V
      G6-7 (SW2) - Body ground GR - Body ground Light control rheostat signal Light control rheostat fully turned right Below 1 Ω
      Light control rheostat fully turned left 8 to 12 kΩ
      G6-8 (L) - Body ground*1 W - Body ground Fuel sender gauge signal Fuel F (full tank) → E (empty) Below 1 V → 4.5 to 9 V
      G6-9 (L) - Body ground B - Body ground Fuel sender gauge signal Fuel F (full tank) → E (empty) Below 1 V → 4.5 to 9 V
      G6-10 (TC) - Body ground*2 W - Body ground TAIL cancel switch signal TAIL cancel switch on Below 1 Ω
      TAIL cancel switch off 1 MΩ or higher
      G6-11 (RSET) - Body ground P - Body ground ODO/TRIP switch signal Ignition switch ON, ODO/TRIP switch on (Pushed) Below 1 Ω
      Ignition switch ON, ODO/TRIP switch off (Not pushed) 1 MΩ or higher
      G6-13 (BLP) - Body ground*3 R - Body ground Back-up light switch signal Ignition switch ON, back-up light switch on 11 to 14 V
      G6-14 (ST) - Body ground*3 W - Body ground Starter signal Clutch start switch on, Cranking 5.5 V or higher
      G6-15 (TCO) - Body ground*4 V - Body ground DLC3 (TC) Ignition switch ON 11 to 14 V
      G6-19 (B) - Body ground Y - Body ground Turn signal LH Ignition switch ON, turn LH indicator light blinks Below 1 V ←→ 11 to 14 V
      Ignition switch ON, turn signal switch neutral position Below 1 V
      G6-20 (B) - Body ground G - Body ground Turn signal RH Ignition switch ON, turn RH indicator light blinks Below 1 V ←→ 11 to 14 V
      Ignition switch ON, turn signal switch neutral position Below 1 V
      G6-21 (E2) - Body ground BR - Body ground Signal ground Always Below 1 V
      G6-22 (SW3) - Body ground LG - Body ground Light control rheostat ground Always Below 1 V
      G6-23 (FE) - Body ground*1 B - Body ground Fuel sender gauge ground Always Below 1 Ω
      G6-24 (E) - Body ground W - Body ground Fuel sender gauge ground Always Below 1 Ω
      G6-26 (B) - Body ground L - Body ground Battery Always 11 to 14 V
      G6-28 (IG+) - Body ground R - Body ground Ignition switch signal Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      G6-30 (CHG-) - Body ground*4, *12, *19 P - Body ground Charge warning light signal Ignition switch ON, charge warning light on Below 1 V
      Ignition switch ON, charge warning light off 11 to 14 V
      G6-31 (SW) - Body ground*4, *18 P - Body ground Fluid level warning switch signal Ignition switch ON, fluid level warning switch on Below 1 V
      Ignition switch ON, fluid level warning switch off 11 to 14 V
      G6-32 (+S) - Body ground R - Body ground Speed signal for other systems (Output) Ignition switch ON, front wheel turns slowly

      Pulse generation

      (See waveform 1)
      G6-33 (SI) - Body ground V - Body ground Speed signal for other systems (Input) Ignition switch ON, front wheel turns slowly

      Pulse generation

      (See waveform 1)
      G6-34 (S) - Body ground*4 P - Body ground Engine speed signal Idling with warm engine

      Pulse generation

      (See waveform 2)
      G6-35 (TEMP) - Body ground*4 L - Body ground Engine coolant temperature signal Idling with warm engine

      Pulse generation

      (See waveform 3)
      G6-37 (LIN) - Body ground*21 GR - Body ground LIN communication signal Ignition switch ON Pulse generation
      G6-39 (CANL) - Body ground W - Body ground CAN communication signal Ignition switch off 200 Ω or higher
      G6-40 (CANH) - Body ground LG - Body ground*6, *7, *8, *15 CAN communication signal Ignition switch off 200 Ω or higher
      V - Body ground*9, *10
      G7-1 (ED) - Body ground*11 W-B - Body ground Vehicle type for 3 door Below 1 V
      for 5 door 4.6 to 5.4 V
      G7-3 (S) - Body ground*17 R - Body ground Fuel sedimenter warning switch signal Ignition switch ON, fuel sedimenter warning switch on Below 1 V
      Ignition switch ON, fuel sedimenter warning switch off 11 to 14 V
      G7-4 (FFTR) - Body ground*12, *16 V - Body ground Fuel filter warning switch signal Ignition switch ON, fuel filter warning switch on Below 1 V
      Ignition switch ON, fuel filter warning switch off 11 to 14 V
      G7-5 (OIL) - Body ground*12, *13, *16 G - Body ground Oil level sensor signal Ignition switch ON, oil level warning light comes on Below 1 V
      Ignition switch ON, oil level warning light off 11 to 14 V
      G7-7 (CHK) - Body ground*20 V - Body ground MIL (Malfunction Indicator Lamp) signal Ignition switch ON, MIL (Malfunction Indicator Lamp) comes on Below 1 V
      Ignition switch ON, MIL (Malfunction Indicator Lamp) off 11 to 14 V
      G7-8 (GLW-) - Body ground*4 R - Body ground GLOW indicator light signal Ignition switch ON, GLOW indicator light comes on Below 1 V
      Ignition switch ON, GLOW indicator light off 11 to 14 V
      G7-15 (P/SB) - Body ground L - Body ground Passenger side seat belt buckle switch Ignition switch ON, sit on the front passenger seat, and front passenger side seat belt unfastened 11 to 14 V
      Ignition switch ON, sit on the front passenger seat, and front passenger side seat belt fastened Below 1 V
      G7-16 (TIRE) - Body ground*14 Y - Body ground Tire pressure warning light signal Ignition switch ON, tire pressure warning light off 3.2 V or higher
      Ignition switch ON, tire pressure warning light on 0.9 to 3.2 V
      G7-17 (EC) - Body ground*14 BR - Body ground Tire pressure warning light ground Always Below 1 Ω
      G7-20 (WLVL) - Body ground*5 W - Body ground Washer level warning signal Ignition switch ON, level warning switch on Below 1 V
      Ignition switch ON, level warning switch off 11 to 14 V
      G7-23 (VCM) - Body ground*4 G - Body ground Vacuum warning switch signal Ignition switch ON, vacuum warning switch on Below 1 V
      Ignition switch ON, vacuum warning switch off 11 to 14 V
      G7-24 (S) - Body ground V - Body ground Oil pressure switch signal Ignition switch ON, oil pressure warning light on Below 1 V
      Ignition switch ON, oil pressure warning light off 11 to 14 V

      • *1: for Double Tank Type

      • *2: w/ TAIL Cancel Switch

      • *3: for Manual Transmission

      • *4: for 5L-E

      • *5: w/ Washer Fluid Level Warning System

      • *6: for RHD

      • *7: for LHD, 1GR-FE

      • *8: for LHD, 1KD-FTV

      • *9: for LHD, 2TR-FE

      • *10: for LHD, 5L-E

      • *11: for 3 Door

      • *12: for 1KD-FTV

      • *13: for 1GR-FE, Europe

      • *14: w/ Tire Pressure Monitor System

      • *15: for LHD, 1GD-FTV

      • *16: for 1GD-FTV

      • *17: for Diesel Engine

      • *18: for 2TR-FE

      • *19: for 1GR-FE

      • *20: except 2TR-FE

      • *21: w/ Multi-function Switch

    2. B001G6PE01

      Using an oscilloscope, check waveform 1.

      Waveform (Reference)
      Item Condition
      Tester Connection

      • G6-32 (+S) - Body ground

      • G6-33 (SI) - Body ground
      Tool Setting 5 V/DIV., 20 ms./DIV.
      Vehicle Condition Driving at approximately 20 km/h (12 mph)

      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.

    3. B001G3OE06

      Using an oscilloscope, check waveform 2.

      Waveform (Reference)
      Item Condition
      Tester Connection G6-34 (S) - Body ground
      Tool Setting 5 V/DIV., 20 ms./DIV.
      Vehicle Condition Idling with warm engine
    4. B001DS1E09

      Using an oscilloscope, check waveform 3.

      Waveform (Reference)
      Item Condition
      Tester Connection G6-35 (TEMP) - Body ground
      Tool Setting 5 V/DIV., 0.1 sec./DIV.
      Vehicle Condition Idling with warm engine