METER / GAUGE SYSTEM TERMINALS OF ECU

  1. CHECK COMBINATION METER ASSEMBLY

    U123708E03

    1. Measure the resistance voltage and waveform 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)

      H62-6 (TRNR) - Body ground

      G - Body ground

      RH turn indicator light signal (Input)

      Ignition switch ON, RH turn indicator light off

      11 to 14 V

      Ignition switch ON, RH turn indicator light blinking

      Below 1 V

      H62-8 (TRNL) - Body ground

      LG - Body ground

      LH turn indicator light signal (Input)

      Ignition switch ON, LH turn indicator light off

      11 to 14 V

      Ignition switch ON, LH turn indicator light blinking

      Below 1 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 (PKBI) - 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

      H62-17 (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

      H62-28 (S) - Body ground*2

      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 1WW

      • *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

    2. E355167E01

      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. CHECK COMBINATION METER ASSEMBLY INNER CIRCUIT

    E343426E02
    E293055E02
    E315885E03
    E315886E02
    E343427E02

    • *1: w/ Rear No. 1 Seat

    • *2: w/ Rear No. 2 Seat

    • *3: for LHD

    • *4: for RHD

    • *5: for 1WW

    • *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: except 1WW

    • *16: w/ Speed Limiter System

    • *17: w/ Pre-collision System

    • *18: w/ Automatic High Beam System

    • *19: w/ Lane Departure Alert System

    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

    -

    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

    -

    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

    -

    27

    -

    28*3

    Level warning switch

    29

    ECM

    30

    -

    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 1WW

    • *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