METER / GAUGE SYSTEM TERMINALS OF ECU


  1. COMBINATION METER ASSEMBLY

    A01NF7GE06

    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
      F15-1 (B) - Body ground V - Body ground Turn indicator light signal Power switch on (IG), turn LH indicator light off Below 1 V
      Power switch on (IG), turn LH indicator light blinks Below 1 V ←→ 11 to 14 V
      F15-3 (+S) - Body ground LG - Body ground Speed signal for other systems (Output) Power switch on (IG), front wheel turns slowly

      Pulse generation

      (See waveform 1)
      F15-4 (SI) - Body ground BR - Body ground Speed signal for other systems (Input) Power switch on (IG), front wheel turns slowly

      Pulse generation

      (See waveform 1)
      F15-5 (S) - Body ground Y - Body ground Oil pressure switch signal Power switch on (IG), oil pressure warning display off 11 to 14 V
      Power switch on (IG), oil pressure warning display comes on Below 1 V
      F15-6 (OIL)*1 - Body ground R - Body ground Oil level sensor signal Power switch on (IG), oil level warning display off 11 to 14 V
      Power switch on (IG), oil level warning display comes on Below 1 V
      F15-7 (WLVL) - Body ground L - Body ground Washer level warning switch signal Power switch on (IG), washer level warning display off 11 to 14 V
      Power switch on (IG), washer level warning display comes on Below 1 V
      F15-10 (P/SB) - Body ground GR - Body ground Front passenger side seat belt buckle switch signal Power switch on (IG), sit on the front passenger seat, and front passenger side seat belt unfastened Below 1 V ←→ 11 to 14 V
      Power switch on (IG), sit on the front passenger seat, and front passenger side seat belt fastened Below 1 V
      F15-12 (RRSB)*2 - Body ground P - Body ground Rear RH passenger seat belt buckle switch signal Power switch on (IG), rear RH passenger seat belt unfastened Below 1 V
      Power switch on (IG), rear RH passenger seat belt fastened 11 to 14 V
      F15-13 (RCSB)*2 - Body ground SB - Body ground Rear center passenger seat belt buckle switch signal Power switch on (IG), rear center passenger seat belt unfastened Below 1 V
      Power switch on (IG), rear center passenger seat belt fastened 11 to 14 V
      F15-14 (RLSB)*2 - Body ground B - Body ground Rear left passenger seat belt buckle switch signal Power switch on (IG), rear left passenger seat belt unfastened Below 1 V
      Power switch on (IG), rear left passenger seat belt fastened 11 to 14 V
      F15-15 (ILL-) - Body ground BE - Body ground Illumination signal Light control switch in tail or head position Pulse generation
      F15-16 (E2) - Body ground W-B - Body ground Ground (Signal ground) Always Below 1 V
      F16-1 (IG+) - Body ground GR - Body ground Power switch signal Power switch off Below 1 V
      Power switch on (IG) 11 to 14 V
      F16-2 (B) - Body ground LG - Body ground Turn indicator light signal Power switch on (IG), turn RH indicator light off Below 1 V
      Power switch on (IG), turn RH indicator light blinks Below 1 V ←→ 11 to 14 V
      F16-4 (MSSL) - Body ground Y - Body ground Steering pad switch assembly signal (Menu, ENTER, Up, or Down switch) Power switch on (IG), Menu, ENTER, Up, or Down switch pressed Below 1 V
      Power switch on (IG), Menu, ENTER, Up, or Down switch not pressed 4 to 6 V
      F16-5 (ET) - Body ground V - Body ground Ground Always Below 1 V
      F16-6 (ES) - Body ground W-B - Body ground Ground Always Below 1 V
      F16-7 (RHUP) - Body ground GR - Body ground Light control rheostat signal (Light control rheostat up switch) Power switch on (IG), up switch pressed Below 1 V
      Power switch on (IG), up switch not pressed 11 to 14 V
      F16-8 (RHDW) - Body ground Y - Body ground Light control rheostat signal (Light control rheostat down switch) Power switch on (IG), down switch pressed Below 1 V
      Power switch on (IG), down switch not pressed 11 to 14 V
      F16-9 (A/B) - Body ground W - Body ground Light control rheostat signal (ODO/TRIP change switch) Power switch on (IG), ODO/TRIP change switch pressed Below 1 V
      Power switch on (IG), ODO/TRIP change switch not pressed 11 to 14 V
      F16-12 (PBLT) - Body ground L - Body ground Front passenger side seat belt warning light signal Power switch on (IG), front passenger side seat belt warning light off 11 to 14 V
      Power switch on (IG), front passenger side seat belt warning light blinks Below 1 V ←→ 11 to 14 V
      F16-13 (B) - Body ground SB - Body ground Power switch signal Power switch off 11 to 14 V
      F16-16 (FR) - Body ground G - Body ground Fuel level signal Power switch on (IG), fuel level warning light off Below 1 V
      Power switch on (IG), fuel level warning light on 4 to 9 V
      F16-17 (FE) - Body ground SB - Body ground Ground (Fuel ground) Always Below 1 V
      F16-18 (TX+)*3 - Body ground W - Body ground Headup display (combination meter mirror ECU) communication signal Always Pulse generation
      F16-20 (CS)*3 - Body ground BE - Body ground (combination meter mirror ECU) communication signal Always Pulse generation
      F16-21 (CHK) - Body ground BR - Body ground MIL (Check Power warning light) signal Power switch on (IG), MIL (Check Power warning light) off 11 to 14 V
      Power switch on (IG), slip indicator light comes on Below 1 V
      F16-22 (TWS2) - Body ground B - Body ground Coolant temperature sensor signal Power switch on (IG), coolant temperature below 113°C (235°F) 4 V or more
      Power switch on (IG), coolant temperature below 120°C (248°F) Below 1 V
      F16-23 (CANH) - Body ground P - Body ground CAN communication signal Power switch off 200 Ω or higher
      F16-24 (CANL) - Body ground R - Body ground CAN communication signal Power switch off 200 Ω or higher

      • *1: w/ Oil Level Sensor

      • *2: w/ Rear Seat Belt Warning

      • *3: w/ Headup Display

    2. A01NHVCE03

      Waveform 1 (Reference): Using an oscilloscope:

      Item Condition
      Tool setting 5 V/DIV., 20 ms./DIV.
      Vehicle condition Driving at approx. 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.

      Terminal No. (Symbol) Wire Harness Side
      F15 1 (B) Turn Signal Flasher
      2 -
      3 (+S) Each part that uses the vehicle speed signal
      4 (SI) Skid Control ECU
      5 (S) Oil Pressure Switch
      6 (OIL) Oil Level Sensor*1
      7 (WLVL) Washer Fluid Level Warning Switch
      8 -
      9 -
      10 (P/SB) Front Passenger Side Seat Belt Buckle Switch
      11 -
      12 (RRSB) Rear RH Passenger Seat Belt Buckle Switch*2
      13 (RCSB) Rear Center Passenger Seat Belt Buckle Switch*2
      14 (RLSB) Rear LH Passenger Seat Belt Buckle Switch*2
      15 (ILL-) Each part that uses the illumination signal
      16 (E2) Ground
      F16 1 (IG+) GAUGE NO. 2 Fuse
      2 (B) Turn Signal Flasher
      3 -
      4 (MSSL) Multi-information Switch (Steering Pad Switch Assembly)
      5 (ET) Ground
      6 (ES) Ground
      7 (RHUP) Light Control Rheostat (Light Control Rheostat Up Switch)
      8 (RHDW) Light Control Rheostat (Light Control Rheostat Down Switch)
      9 (A/B) Light Control Rheostat (ODO/TRIP Switch)
      10 -
      11 -
      12 (PBLT) Accessory Meter Assembly or Radio Receiver Assembly
      13 (B) ECU-B NO. 1 Fuse
      14 -
      15 -
      16 (FR) Fuel Sender Gauge Assembly
      17 (FE) Fuel Sender Gauge Assembly
      18 (TX+) Headup Display (Combination Meter Mirror ECU)*3
      19 -
      20 (CS) Headup Display (Combination Meter Mirror ECU)*3
      21 (CHK) ECM
      22 (TWS2) Coolant Temperature Sensor
      23 (CANH) CAN Communication Line
      24 (CANL) CAN Communication Line

      • *1: w/ Oil Level Sensor

      • *2: w/ Rear Seat Belt Warning

      • *3: w/ Headup Display

  2. ACCESSORY METER ASSEMBLY (w/o Navigation System)

    A01NCWJE02

    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
      G1-1 (IG+) - Body ground V - Body ground Power switch signal Power switch off Below 1 V
      Power switch on (IG) 11 to 14 V
      G1-2 (IG2) - Body ground LG - Body ground Power switch signal Power switch off Below 1 V
      Power switch on (IG) 11 to 14 V
      G1-3 (ACC) - Body ground W - Body ground Power switch signal Power switch off Below 1 V
      Power switch on (IG) 11 to 14 V
      G1-6 (PBEW) - Body ground L - Body ground Front passenger side seat belt warning light signal Power switch on (IG), front passenger side seat belt warning light off 11 to 14 V
      Power switch on (IG), front passenger side seat belt warning light blinks Below 1 V ←→ 11 to 14 V
      G1-7 (P-AB) - Body ground BR - Body ground Front passenger side airbag OFF indicator light signal Power switch on (IG), front passenger side airbag OFF indicator light off Below 1 V
      Power switch on (IG), front passenger side airbag OFF indicator light on 11 to 14 V
      G1-8 (PAON) - Body ground G - Body ground Front passenger side airbag ON indicator light signal Power switch on (IG), front passenger side airbag ON indicator light off Below 1 V
      Power switch on (IG), front passenger side airbag ON indicator light on 11 to 14 V
      G1-10 (TX2+) - Body ground P - Body ground AVC-LAN (Heater control panel communication signal) Always Below 1 V
      G1-12 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G1-13 (+B) - Body ground GR - Body ground Battery Power switch off 11 to 14 V
      G1-14 (ADIM) - Body ground P - Body ground Auto dimmer signal Power switch on (IG), light control switch off Below 1 V
      Power switch on (IG), light control switch in tail, head, or AUTO position at night 4 to 6 V
      G1-17 (CLK2) - Body ground R - Body ground Clock adjust switch signal H, M or light control adjust switch not pressed 11 to 14 V
      H, M or light control adjust switch pressed Below 1 V
      G1-18 (CLK4) - Body ground B - Body ground Clock adjust switch signal H, M or light control adjust switch not pressed 11 to 14 V
      H, M or light control adjust switch pressed Below 1 V
      G1-20 (LIN1) - Body ground SB - Body ground LIN communication signal Power switch on (IG) Pulse generation
      G1-22 (TX2-) - Body ground L - Body ground AVC-LAN (Heater control panel communication) signal Power switch off 11 to 14 V
      G1-24 (ILL-) - Body ground R - Body ground Illumination signal Light control switch off Below 1 V
      Light control switch in tail or head position 11 to 14 V
      Terminal No. (Symbol) Wire Harness Side
      G1 1 (IG+) GAUGE NO. 1 Fuse
      2 (IG2) ECU-IG2 Fuse
      3 (ACC) ECU-ACC Fuse
      4 -
      5 -
      6 (PBEW) Combination Meter Assembly
      7 (P-AB) Center Airbag Sensor Assembly
      8 (PAON) Center Airbag Sensor Assembly
      9 -
      10 (TX2+) Radio Receiver Assembly
      11 -
      12 (GND1) Ground
      13 (+B) Battery
      14 (ADIM) Main Body ECU (Multiplex Network Body ECU)
      15 -
      16 -
      17 (CLK2) Radio Receiver Assembly
      18 (CLK4) Radio Receiver Assembly
      19 -
      20 (LIN1) Air Conditioning Amplifier
      21 -
      22 (TX2-) Radio Receiver Assembly
      23 -
      24 (ILL-) Combination Meter Assembly

  3. HEADUP DISPLAY (COMBINATION METER MIRROR ECU) (w/ Headup Display)


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

      A01NCQIE05
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      H1-1 (IG) - Body ground W- Body ground Power switch signal Power switch off Below 1 V
      Power switch on (IG) 11 to 14 V
      H1-2 (B) - Body ground SB - Body ground Battery Power switch off 11 to 14 V
      H1-3 (ACC) - Body ground GR - Body ground Power switch signal Power switch off Below 1 V
      Power switch on (ACC) 11 to 14 V
      H1-5 (ES) - Body ground W-B - Body ground Ground Always Below 1 Ω
      H1-6 (TX-) - Body ground B - Body ground AVC-LAN (Heater control panel communication) signal Always Pulse generation
      H1-8 (CS) - Body ground BR - Body ground LIN communication signal Always Pulse generation
      H1-10 (MPX1) - Body ground G - Body ground Multiplex communication signal Power switch on (IG) Pulse generation
      H1-11 (MPX2) - Body ground R - Body ground Multiplex communication signal Power switch on (IG) Pulse generation
      H1-12 (ILU) - Body ground LG - Body ground Satellite switch set signal (Display contrast up switch) Power switch on (IG), headup display (combination meter mirror ECU) contrast up switch not pressed 11 to 14 V
      Power switch on (IG), headup display (combination meter mirror ECU) contrast up switch pressed Below 1 V
      H1-13 (ILD) - Body ground L - Body ground Satellite switch set signal (Display contrast down switch) Power switch on (IG), headup display (combination meter mirror ECU) contrast down switch not pressed 11 to 14 V
      Power switch on (IG), headup display (combination meter mirror ECU) contrast down switch pressed Below 1 V
      H1-14 (HUDO) - Body ground Y - Body ground Satellite switch set signal (Headup display (combination meter mirror ECU) on switch) Power switch on (IG), headup display (combination meter mirror ECU) on switch not pressed 11 to 14 V
      Power switch on (IG), headup display (combination meter mirror ECU) on switch pressed Below 1 V
      H1-15 (HUDU) - Body ground V - Body ground Satellite switch set signal (Headup display (combination meter mirror ECU) position up switch) Power switch on (IG), headup display (combination meter mirror ECU) position up switch not pressed 11 to 14 V
      Power switch on (IG), headup display (combination meter mirror ECU) position up switch pressed Below 1 V
      H1-16 (HUDD) - Body ground P - Body ground Satellite switch set signal (Headup display (combination meter mirror ECU) position down switch) Power switch on (IG), headup display (combination meter mirror ECU) position down switch not pressed 11 to 14 V
      Power switch on (IG), headup display (combination meter mirror ECU) position down switch pressed Below 1 V
      Terminal No. (Symbol) Wire Harness Side
      H1 1 (IG) GAUGE NO. 1 Fuse
      2 (B) ECU-B NO. 1 Fuse
      3 (ACC) ECU-ACC Fuse
      4 -
      5 (ES) Ground
      6 (TX-) Combination Meter Assembly
      7 -
      8 (CS) Combination Meter Assembly
      9 -
      10 (MPX1) Display and Navigation Module Display
      11 (MPX2) Display and Navigation Module Display
      12 (ILU) Satellite Switch Set (Headup display (combination meter mirror ECU) contrast up switch)
      13 (ILD) Satellite Switch Set (Headup display (combination meter mirror ECU) contrast down switch)
      14 (HUDO) Satellite Switch Set (Headup display (combination meter mirror ECU) on switch)
      15 (HUDU) Satellite Switch Set (Headup display (combination meter mirror ECU) position up switch)
      16 (HUDD) Satellite Switch Set (Headup display (combination meter mirror ECU) position down switch)