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METER / GAUGE SYSTEM TERMINALS OF ECU

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  1. A01INPOE02

    CHECK COMBINATION METER ASSEMBLY


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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      H62-3 (+S) - Body ground Y - Body ground Speed signal (output) Vehicle being driven approximately 20 km/h (12 mph) Pulse generation (See waveform 1)
      H62-5 (SI) - Body ground V - Body ground Speed signal (input) Vehicle being driven approximately 20 km/h (12 mph) Pulse generation (See waveform 1)
      H62-7 (TC) - Body ground R - Body ground Light control rheostat signal Light control rheostat pushed Below 1 V
      Light control rheostat not pushed 11 to 14 V
      H62-10 (SW) - Body ground SB - Body ground Brake fluid level warning light signal Ignition switch ON, brake system warning light (red indicator) on Below 1 V
      Ignition switch ON, brake system warning light (red indicator) off 11 to 14 V
      H62-11 (PKB1) - Body ground L - Body ground Passenger side seat belt condition signal Ignition switch ON, front passenger side seat belt warning light off 11 to 14 V
      Ignition switch ON, front passenger side seat belt warning light on Below 1 V
      H62-12 (LVWG) - Body ground*6 GR - Body ground LEVELING indicator light signal Ignition switch ON, headlight dimmer switch set to head Below 1 V
      Ignition switch ON, headlight dimmer switch not set to head 11 to 14 V
      H62-13 (MSD) - Body ground*1 R - Body ground Rear seat 3 point type inner belt assembly LH Rear seat inner belt LH unfastened Below 1 V
      Rear seat inner belt LH fastened 11 to 14 V
      H62-14 (MSTI) - Body ground*1 W - Body ground Rear seat inner belt assembly (for LH Side) Rear seat center belt unfastened Below 1 V
      Rear seat center belt fastened 11 to 14 V
      H62-15 (MSFM) - Body ground*1 B - Body ground Rear seat 3 point type inner belt assembly RH Rear seat inner belt RH unfastened Below 1 V
      Rear seat inner belt RH fastened 11 to 14 V
      H62-16 (OILW) - Body ground*2 G - Body ground Engine oil level signal Ignition switch ON, ENGINE OIL LOW displayed Below 1 V
      Ignition switch ON, ENGINE OIL LOW not displayed 11 to 14 V
      H62-17 (S) - Body ground Y - Body ground Engine oil pressure signal Ignition switch ON, ENGINE OIL PRESSURE LOW displayed Below 1 V
      Ignition switch ON, ENGINE OIL PRESSURE LOW not displayed 11 to 14 V
      H62-19 (B) - Body ground L - Body ground Turn signal R Ignition switch ON, turn signal switch neutral position Below 1 V
      Ignition switch ON, turn signal switch turned to right Alternating between below 1 and 11 to 14 V
      H62-20 (B) - Body ground Y - Body ground Turn signal L Ignition switch ON, turn signal switch neutral position Below 1 V
      Ignition switch ON, turn signal switch turned to left Alternating between below 1 and 11 to 14 V
      H62-21 (ET) - Body ground BR - Body ground Ground Always Below 1 V
      H62-22 (CANH) - Body ground SB - Body ground CAN communication signal Ignition switch off 200 Ω or higher
      H62-23 (CANL) - Body ground W - Body ground CAN communication signal Ignition switch off 200 Ω or higher
      H62-24 (E) - Body ground BR - Body ground Fuel sender gauge ground Always Below 1 Ω
      H62-25 (TX1+) - Body ground L - Body ground Cooler thermistor (ambient temperature sensor) ground Always Below 1 Ω
      H62-26 (E1) - Body ground B - Body ground Light control rheostat ground Always Below 1 Ω
      H62-28 (S) - Body ground*2, *7 R - Body ground Fuel sedimenter signal Ignition switch ON, DRAIN WATER FROM FUEL FILTER displayed Below 1 V
      Ignition switch ON, DRAIN WATER FROM FUEL FILTER not displayed 11 to 14 V
      H62-29 (EFI) - Body ground P - Body ground MIL (check engine indicator light) signal Ignition switch ON, MIL on Below 1 V
      Ignition switch ON, MIL off 11 to 14 V
      H62-30 (CHG-) - Body ground Y - Body ground CHARGE warning light Ignition switch ON, CHARGE warning light on Below 1 V
      Ignition switch ON, CHARGE warning light off 11 to 14 V
      H62-32 (SW1) - Body ground B - Body ground Spiral cable signal Ignition switch ON, steering pad DISP switch signal off Below 1 V
      Ignition switch ON, steering pad DISP switch signal on 11 to 14 V
      H62-33 (TEMP) - Body ground W - Body ground Cooler thermistor (ambient temperature sensor) signal Outside temperature 25°C (77°F) 1.6 to 1.8 Ω*4
      H62-34 (MSM+) - Body ground*3 G - Body ground Rear No. 2 seat belt sub-assembly Rear No. 2 seat belt unfastened Below 1 V
      Rear No. 2 seat belt fastened 11 to 14 V
      H62-35 (MS+) - Body ground*3 L - Body ground Rear No. 2 seat belt sub-assembly Rear No. 2 seat belt unfastened Below 1 V
      Rear No. 2 seat belt fastened 11 to 14 V
      H62-36 (TIRE) - Body ground*5 V - 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
      H62-37 (L) - Body ground Y - Body ground Fuel sender gauge signal Fuel F (full tank) to E (empty) 4.5 to 9 V
      H62-39 (IG+) - Body ground P - Body ground Ignition switch signal Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V
      H62-40 (B) - Body ground W - Body ground Battery Always 11 to 14 V

      • *1: w/ Rear No. 1 Seat

      • *2: for AD Series Engine

      • *3: w/ Rear No. 2 Seat

      • *4: The standard value changes according to the outside temperature.

      • *5: w/ Tire Pressure Warning System

      • *6: w/ HID Headlight System

      • *7: for 1WW

    2. A01IQ7DE03

      Using an oscilloscope, check waveform 1.

      Table 1. Measurement Condition
      Item Condition
      Terminal No. (Symbol)

      • H62-3 (+S) - Body ground

      • H62-5 (SI) - Body ground
      Tool setting 5 V/DIV., 20 ms./DIV.
      Condition Being driven at approximately 20 km/h (12 mph)
      Tip:

      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. A01ITPBE01
    A01IQ4SE02
    A01INZ9E01
    A01IS53E01
    A01IOBUE01

    CHECK COMBINATION METER ASSEMBLY INNER CIRCUIT


    • *1: w/ Rear No. 1 Seat

    • *2: w/ Rear No. 2 Seat

    • *3: for LHD

    • *4: for RHD

    • *5: for AD Series Engine

    • *6: w/ Cruise Control System

    • *7: except Manual Transaxle

    • *8: w/ HID Headlight System

    • *9: except CVT

    • *10: w/ Rear Fog Light

    • *11: w/ Front Fog Light

    • *12: w/ Tire Pressure Warning System

    • *13: w/ Stop and Start System

    • *14: w/o Stop and Start System

    • *15: Engine Type Diesel

    • *16: except 1WW

    • *17: for 1WW

    Table 2. Connectors
    Terminal No. Wire Harness Side
    H62 1 -
    2 -
    3 Each part that uses the vehicle speed signal
    4 -
    5 Brake actuator assembly
    6 -
    7 Light control rheostat
    8 -
    9 -
    10 Brake fluid level warning switch
    11 Occupant detection switch
    12*1 Headlight leveling ECU assembly
    13*2 Rear seat 3 point type inner belt assembly LH
    14*2 Rear seat inner belt assembly (for LH Side)
    15*2 Rear seat 3 point type inner belt assembly RH
    16*3 Engine oil level sensor
    17 Engine oil pressure switch assembly
    18 -
    19 Turn signal flasher assembly
    20 Turn signal flasher assembly
    21 Ground
    22 CAN communication line
    23 CAN communication line
    24 Fuel sender gauge assembly
    25 Cooler thermistor (ambient temperature sensor)
    26 Light control rheostat
    27 -
    28*3, *8 Level warning switch
    29 ECM
    30 Generator
    31 -
    32 Steering pad switch assembly
    33 Cooler thermistor (ambient temperature sensor)
    34*4 Rear No. 2 seat belt sub-assembly
    35*4 Rear No. 2 seat belt sub-assembly
    36*5 Tire pressure warning ECU and receiver
    37 Fuel sender gauge assembly
    38 -
    39

    • Engine stop and start ECU*6

    • IG2 relay*7
    40 Battery

    • *1: w/ HID Headlight System

    • *2: w/ Rear No. 1 Seat

    • *3: for AD Series Engine

    • *4: w/ Rear No. 2 Seat

    • *5: w/ Tire Pressure Warning System

    • *6: w/ Stop and Start System

    • *7: w/o Stop and Start System

    • *8: for 1WW