METER / GAUGE SYSTEM TERMINALS OF ECU

  1. COMBINATION METER ASSEMBLY

    E235640N05

    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

      G16-1 (RLMT) - Body ground*10

      B - Body ground

      Rear left seat belt warning indicator signal (Output)

      Ignition switch ON, Rear left seat belt warning indicator off

      Below 1 V

      Ignition switch ON, Rear left seat belt warning indicator on

      11 to 14 V

      G16-2 (ILL-) - Body ground*12

      LG - Body ground

      Ground

      Always

      Below 1 Ω

      G16-2 (RCMT) - Body ground*10*14

      G - Body ground

      Rear center seat belt warning indicator signal (Output)

      Ignition switch ON, Rear center seat belt warning indicator off

      Below 1 V

      Ignition switch ON, Rear center seat belt warning indicator on

      11 to 14 V

      G16-3 (RRMT) - Body ground*10

      L - Body ground

      Rear right seat belt warning indicator signal (Output)

      Ignition switch ON, Rear right seat belt warning indicator off

      Below 1 V

      Ignition switch ON, Rear right seat belt warning indicator on

      11 to 14 V

      G16-4 (EP) - Body ground

      BR - Body ground

      Ground

      Always

      Below 1 Ω

      G16-5 (SI) - Body ground

      V - Body ground

      Speed signal for other systems (Input)

      Driving at approximately 20 km/h (12 mph)

      Pulse generation

      (See waveform 1)

      G16-6 (+S) - Body ground

      LG - Body ground

      Speed signal for other systems (Output)

      Driving at approximately 20 km/h (12 mph)

      Pulse generation

      (See waveform 1)

      G16-7 (P/SB) - Body ground

      L - Body ground

      Passenger side seat belt signal

      Ignition switch ON, Passenger side seat belt buckle switch off or passenger seat occuparent switch off

      11 to 14 V

      Ignition switch ON, Passenger side seat belt buckle switch on and passenger seat occuparent switch on

      Below 1 V

      G16-8 (S) - Body ground*8,*9

      R - Body ground

      Sedimenter warning signal

      Ignition switch ON, Level warning switch off

      11 to 14 V

      Ignition switch ON, Level warning switch on

      Below 1 V

      G16-9 (S) - Body ground*9

      L - Body ground

      Engine oil pressure switch signal

      Ignition switch ON, engine oil pressure switch off

      11 to 14 V

      Ignition switch ON, engine oil pressure switch on

      Below 1 V

      G16-10 (WLVL) - Body ground*15

      LG - Body ground

      Level warning switch signal

      Ignition switch ON, washer level indicator light off

      11 to 14 V

      Ignition switch ON, washer level indicator light on

      Below 1 V

      G16-11 (CHK) - Body ground

      R - Body ground

      MIL signal

      Ignition switch ON, MIL off

      11 to 14 V

      Ignition switch ON, MIL on

      Below 1 V

      G16-12 (SW) - Body ground

      Y - Body ground

      Brake fluid level warning switch signal

      Ignition switch ON, brake fluid level warning switch off

      11 to 14 V

      Ignition switch ON, brake fluid level warning switch on

      Below 1 V

      G16-13 (CHG-) - Body ground*4

      L - Body ground

      Charge warning light signal

      Ignition switch ON, charge warning light off

      11 to 14 V

      Ignition switch ON, charge warning light on

      Below 1 V

      G16-14 (-) - Body ground

      BR - Body ground

      High beam indicator light ground

      Always

      Below 1 Ω

      G16-15 (E) - Body ground

      GR - Body ground

      Fuel sender gauge ground

      Always

      Below 1 Ω

      G16-16 (L) - Body ground

      SB - Body ground

      Fuel sender gauge signal

      Fuel level F

      Below 1 V

      Fuel level E

      4.5 to 9 V

      G16-17 (TC) - Body ground

      G - Body ground

      Tail cancel switch signal

      Tail cancel switch off

      1 MΩ or higher

      Tail cancel switch on

      Below 1 Ω

      G16-18 (MSTI) - Body ground

      BE - Body ground

      Steering pad switch assembly ground*2

      Always

      Below 1 Ω

      Steering pad switch assembly signal*3

      Ignition switch ON, Left, Up, Down and Right switches on steering pad switch assembly not pushed

      4.8 to 5.2 V

      Ignition switch ON, up, down, right, and left switches on steering pad switch assembly not pushed

      Below 1 V

      G16-19 (+) - Body ground*5

      R - Body ground

      High beam indicator light signal

      Ignition switch ON, high beam indicator light off

      Below 1 V

      Ignition switch ON, high beam indicator light on

      11 to 14 V

      G16-21 (ET) - Body ground

      BR - Body ground

      Ground

      Always

      Below 1 Ω

      G16-22 (OILW) - Body ground*2*8

      G - Body ground

      Engine oil level signal

      Ignition switch ON, Engine oil level not low

      11 to 14 V

      Ignition switch ON, Engine oil level low

      Below 1 V

      G16-22 (MSCL) - Body ground

      SB - Body ground

      CAN communication line

      -

      -

      G16-23 (MSCH) - Body ground

      V - Body ground

      CAN communication line

      -

      -

      G16-24 (RLSB) - Body ground*10

      G - Body ground

      Rear left seat belt buckle switch signal

      Ignition switch ON, Rear left seat belt buckle switch off

      11 to 14 V

      Ignition switch ON, Rear right seat belt buckle switch on

      Below 1 V

      G16-25 (RCSB) - Body ground*10

      B - Body ground

      Rear center seat belt buckle switch signal

      Ignition switch ON, Rear center seat belt buckle switch off

      11 to 14 V

      Ignition switch ON, Rear center seat belt buckle switch on

      Below 1 V

      G16-26 (RRSB) - Body ground*10

      W - Body ground

      Rear right seat belt buckle switch signal

      Ignition switch ON, Rear right seat belt buckle switch off

      11 to 14 V

      Ignition switch ON, Rear right seat belt buckle switch on

      Below 1 V

      G16-27 (OILW) - Body ground*3*8

      G - Body ground

      Engine oil level signal

      Ignition switch ON, Engine oil level not low

      11 to 14 V

      Ignition switch ON, Engine oil level low

      Below 1 V

      G16-28 (MSM+) - Body ground*3

      L - Body ground

      Steering pad switch assembly signal

      Ignition switch ON, Enter, Trip and Back switches on steering pad switch assembly not pushed

      4.8 to 5.2 V

      Ignition switch ON, Enter, Trip and Back switches on steering pad switch assembly pushed

      Below 1 V

      G16-29 (HAZ) - Body ground

      BE - Body ground

      Turn signal switch (full turn) signal

      Ignition switch ON, turn signal switch (full turn) off

      4.4 to 5.6 V

      Ignition switch ON, turn signal switch (full turn) on

      Below 1 V

      G16-31 (CANL) - Body ground

      W - Body ground

      CAN communication line

      -

      -

      G16-32 (CANH) - Body ground

      G - Body ground

      CAN communication line

      -

      -

      G16-33 (SW3) - Body ground

      P - Body ground

      Ground

      Always

      Below 1 Ω

      G16-34 (TX1-) - Body ground

      W - Body ground

      Thermistor signal ground

      Always

      Below 1 V

      G16-35 (TX1+) - Body ground

      G - Body ground

      Thermistor signal

      Ignition switch ON

      4.4 to 5.6 V

      G16-36 (SW2) - Body ground

      GR - Body ground

      Light control rheostat signal

      Ignition switch ON, light control rheostat position (min.)

      Below 1 V

      Ignition switch ON, light control rheostat position (max.)

      4 to 6 V

      G16-37 (SW1) - Body ground

      V - Body ground

      Light control rheostat signal

      Always

      4 to 6 V

      G16-39 (IG+) - Body ground

      B - Body ground*6

      P - Body ground*7

      Ignition switch signal

      Ignition switch off

      Below 1 V

      Ignition switch ON

      11 to 14 V

      G16-40 (B) - Body ground

      Y - Body ground

      Battery

      Always

      11 to 14 V

      G17-1 (B) - Body ground

      L - Body ground

      Battery

      Always

      11 to 14 V

      G17-3 (HAZ) - Body ground

      GR - Body ground

      Hazard warning switch signal

      Ignition switch ON, hazard warning switch not pressed

      11 to 14 V

      Ignition switch ON, hazard warning switch pressed

      Below 1 V

      G17-4 (LVWG) - Body ground*10

      LG - Body ground

      Automatic High Beam indicator light

      Ignition switch ON, Headlight beam level control system indicator light off

      11 to 14 V

      Ignition switch ON, Headlight beam level control system indicator light on

      Below 1 V

      G17-7 (LR) - Body ground

      L - Body ground

      Turn signal light (RH) signal

      Ignition switch ON, turn signal light (RH) off

      Below 1 V

      Ignition switch ON, turn signal light (RH) on

      11 to 14 V

      G17-9 (ER) - Body ground

      SB - Body ground

      Turn signal switch (RH) signal

      Ignition switch ON, turn signal switch (RH) off

      11 to 14 V

      Ignition switch ON, turn signal switch (RH) on

      Below 1 V

      G17-10 (EL) - Body ground

      LG - Body ground

      Turn signal switch (LH) signal

      Ignition switch ON, turn signal switch (LH) off

      11 to 14 V

      Ignition switch ON, turn signal switch (LH) on

      Below 1 V

      G17-11 (S) - Body ground*11

      GR - Body ground

      Rear fog light

      Ignition switch ON, turn rear fog light off

      Below 1 V

      Ignition switch ON, turn rear fog light on

      11 to 14 V

      G17-12 (FOG) - Body ground*1

      Y - Body ground

      Front fog indicator light signal

      Ignition switch ON, front fog indicator light off

      Below 1 V

      Ignition switch ON, front fog indicator light on

      11 to 14 V

      G17-13 (LL) - Body ground

      Y - Body ground

      Turn signal light (LH) signal

      Ignition switch ON, turn signal light (LH) off

      Below 1 V

      Ignition switch ON, turn signal light (LH) on

      11 to 14 V

      • *1: w/ Front Fog Light

      • *2: for Segment Display Type

      • *3: for TFT Display Type

      • *4: for 4WD/AWD

      • *5: for Halogen Head Light

      • *6: w/o Stop and Start System

      • *7: w/ Stop and Start System

      • *8: for 2AD-FTV, 2AD-FHV

      • *9: for 2WW

      • *10: w/ Rear Seat Belt Warning

      • *11: w/ Rear Fog Light

      • *12: w/o Canister Pump Module

      • *13: w/ Automatic Headlight Beam Level Control System

      • *14: w/ Canister Pump Module

      • *15: w/ Wahser Fluid Warning System

    2. E251775N01

      Using an oscilloscope, check waveform 1.

      Table 1. Waveform 1 (Reference)

      Item

      Condition

      Tester Connection

      G16-5 (SI) - Body ground

      G16-6 (+S) - Body ground

      Tool Setting

      5 V/DIV., 20 ms./DIV.

      Vehicle Condition

      Driving 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.