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Terminals Of Ecu [08/2019 -]

  1. COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE) 
    GTY541354Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      F6-1 (MSM+) - Body ground LG - Body ground Steering pad switch signal Power switch on (IG), enter, back and trip switches on steering pad switch not pushed 4.8 to 5.2 V
      F6-2 (MSTI) - Body ground L - Body ground Steering pad switch signal Power switch on (IG), up, down, right and left switches on steering pad switch not pushed 4.8 to 5.2 V
      F6-3 (E2) - Body ground*2 P - Body ground Ground Always Below 1 V
      F6-6 (INT) - Body ground LG - Body ground Tire pressure warning reset signal
      • Power switch on (IG)
      • Steering pad switch operated, "TPMS" selected on the multi-information display and enter switch on steering pad switch pressed and held
      		 Below 1.5 V
      • Power switch on (IG)
      • Enter switch on steering pad switch not pushed
      		 8 to 15 V
      F6-8 (S) - Body ground GR - Body ground Engine oil pressure signal Engine started 11 to 14 V
      Engine not started Below 1 V
      F6-9 (E3) - Body ground*5 W-B - Body ground Ground Always Below 1 V
      F6-10 (RRSB) - Body ground P - Body ground Rear seat belt buckle switch RH signal Power switch on (IG), rear seat belt RH unfastened Below 1 V
      Power switch on (IG), rear seat belt RH fastened 11 to 14 V
      F6-11 (RCSB) - Body ground R - Body ground Rear seat belt buckle switch center signal Power switch on (IG), rear seat belt center unfastened Below 1 V
      Power switch on (IG), rear seat belt center fastened 11 to 14 V
      F6-12 (RLSB) - Body ground GR - Body ground Rear seat belt buckle switch LH signal Power switch on (IG), rear seat belt LH unfastened Below 1 V
      Power switch on (IG), rear seat belt LH fastened 11 to 14 V
      F6-15 (OIL) - Body ground P - Body ground Engine oil level signal Power switch on (IG), engine oil level not low 11 to 14 V
      Power switch on (IG), engine oil level low Below 1 V
      F6-16 (WLVL) - Body ground*4 BE - Body ground Washer fluid level signal Power switch on (IG), washer fluid level not low 11 to 14 V
      Power switch on (IG), washer fluid level low Below 1 V
      F6-19 (+S) - Body ground B - Body ground Speed signal for other systems (Output) Power switch on (IG), wheel being rotated Pulse generation (See waveform 1)
      F6-20 (SI) - Body ground LG - Body ground Speed signal for other system (Input) Power switch on (IG), wheel being rotated Pulse generation (See waveform 1)
      F6-21 (IG+) - Body ground G - Body ground Power switch signal Power switch off Below 1 V
      Power switch on (IG) 11 to 14 V
      F6-22 (B) - Body ground W - Body ground Auxiliary battery Power switch off 11 to 14 V
      F6-23 (TWS3) - Body ground*2 SB - Body ground Engine coolant temperature sensor signal Power switch on (IG), engine coolant temperature below 113°C (235°F) 0.2 to 4.8 V
      Power switch on (IG), engine coolant temperature 120°C (248°F) or more Below 0.15 V
      F6-24 (TR) - Body ground L - Body ground Light control rheostat switch signal Power switch on (IG), light control rheostat up switch and light control rheostat down switch not pushed 4.6 to 5.3 V
      Power switch on (IG), light control rheostat up switch pushed Below 1 V
      Power switch on (IG), light control rheostat down switch pushed 2 to 3.6 V
      F6-26 (CANH) V CAN communication line - -
      F6-27 (CANL) W CAN communication line - -
      F6-28 (ES) - Body ground W-B - Body ground Ground Always Below 1 Ω
      F6-29 (FR) - F6-30 (FE&B) L - BE Fuel level signal Power switch on (IG), fuel level full → low (fuel level warning light on) Pulse generation (See waveform 3)
      F6-31 (FV) - Body ground V - Body ground Fuel sender gauge (Power source) Power switch on (IG) Pulse generation (See waveform 2)
      F6-32 (IND) - Body ground*3 L - Body ground Heated steering wheel indicator light signal Power switch on (IG), heated steering wheel system on Below 3 V
      Power switch on (IG), heated steering wheel system off 11 to 14 V
      F6-33 (MSCH)*1 B Local bus communication line - -
      F6-34 (MSCL)*1 W Local bus communication line - -
      F6-37 (LST1) - Body ground R - Body ground Fuel lid operation signal "Please Wait Now Opening" displayed on multi-information display Pulse generation (See waveform 4)
      "Close Fuel Lid" displayed on multi-information display Pulse generation (See waveform 5)
      "Refuel Ready" displayed on multi-information display Pulse generation (See waveform 6)
      Power switch on (IG) 11 to 14 V
      F6-39 (ILL-) - Body ground L - Body ground Illumination signal Taillights off Below 1 V
      Taillights on Pulse generation
      F6-40 (EP) - Body ground W-B - Body ground Ground Always Below 1 Ω
      F7-1 (B) - Body ground G - Body ground Auxiliary battery Power switch off 11 to 14 V
      F7-2 (LP) - Body ground R - Body ground Security indicator light signal Security indicator light off 11 to 14 V
      Security indicator light blinking Below 1 V ←→ 11 to 14 V
      F7-3 (PAON) - Body ground W - Body ground Passenger airbag ON indicator light signal Passenger airbag ON indicator light on Below 1 V
      Passenger airbag ON indicator light off 11 to 14 V
      F7-4 (P-AB) - Body ground B - Body ground Passenger airbag OFF indicator light signal Passenger airbag OFF indicator light on Below 1 V
      Passenger airbag OFF indicator light off 11 to 14 V
      F7-5 (ER) - Body ground GR - Body ground RH turn switch signal Power switch on (IG), RH turn switch off 11 to 14 V
      Power switch on (IG), RH turn switch on Below 1 V
      F7-6 (LR) - Body ground G - Body ground RH turn indicator light signal RH turn indicator light off Below 1 V
      RH turn indicator light blinking 11 to 14 V ←→ Below 1 V
      F7-7 (TRNR) - Body ground SB - Body ground RH turn indicator light signal RH turn indicator light off Below 1 V
      RH turn indicator light blinking 11 to 14 V ←→ Below 1 V
      F7-9 (SW) - Body ground BE - Body ground Turn switch signal Power switch on (IG), LH and RH turn switch off 11 to 14 V
      Power switch on (IG), LH or RH turn switch on Below 1 V
      F7-10 (HAZ) - Body ground L - Body ground Hazard warning signal switch signal Hazard warning signal switch not pressed 11 to 14 V
      Hazard warning signal switch pressed Below 1 V
      F7-11 (EL) - Body ground W - Body ground LH turn switch signal Power switch on (IG), LH turn switch off 11 to 14 V
      Power switch on (IG), LH turn switch on Below 1 V
      F7-12 (LL) - Body ground V - Body ground LH turn indicator light signal LH turn indicator light off Below 1 V
      LH turn indicator light blinking 11 to 14 V ←→ Below 1 V
      F7-13 (TRNL) - Body ground BE - Body ground LH turn indicator light signal LH turn indicator light off Below 1 V
      LH turn indicator light blinking 11 to 14 V ←→ Below 1 V
      1. *1: for Navigation Receiver Type
      2. *2: w/ Exhaust Heat Recirculation System
      3. *3: w/ Heated Steering Wheel System
      4. *4: w/ Washer Fluid Level Warning
      5. *5: w/o Exhaust Heat Recirculation System
      1. Waveform 1:
        Fig 1: Waveform 1
        GTY436923Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        Item Condition
        Tester Connection
        • F6-19 (+S) - Body ground
        • F6-20 (SI) - Body ground
        Tool setting 5 V/DIV., 20 ms./DIV.
        Vehicle condition Power switch on (IG), wheel being rotated

        HINT: 

        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. Waveform 2:
        Fig 2: Waveform 2
        GTY801514Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        Item Condition
        Tester connection F6-31 (FV) - Body ground
        Tool setting 2.5 V/DIV., 20 ms./DIV.
        Condition Power switch on (IG)
        Specified Condition 4.5 to 5.5 V
      3. Waveform 3:
        Item Condition
        Tester connection F6-29 (FR) - F6-30 (FE&B)
        Tool setting 2.5 V/DIV., 20 ms./DIV.
        Condition Power switch on (IG), fuel level full → low (fuel level warning light on)
        GTY776691Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT: 

        (A) varies depending on the fuel level.

        for 43 Liters (45.4 US qts, 37.8 Imp. qts) Total Tank Capacity Type: 

        • Fuel level full: 4.2 to 4.6 V
        • Fuel level low (fuel level warning light on): 0.4 to 1.0 V

        for 40 Liters (42.3 US qts, 35.2 Imp. qts) Total Tank Capacity Type: 

        • Fuel level full: 4.0 to 4.6 V
        • Fuel level low (fuel level warning light on): 0.4 to 1.0 V
      4. Waveform 4:
        Item Condition
        Tester Connection F6-37 (LST1) - Body ground
        Tester Range 5 V/DIV., 20 ms./DIV.
        Condition "Please Wait Now Opening" displayed on multi-information display
        Fig 3: Waveform 5
        GTY552000Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. Waveform 5:
        Item Condition
        Tester Connection F6-37 (LST1) - Body ground
        Tester Range 5 V/DIV., 20 ms./DIV.
        Condition "Close Fuel Lid" displayed on multi-information display
        Fig 4: Waveform 6
        GTY558736Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      6. Waveform 6:
        Item Condition
        Tester Connection F6-37 (LST1) - Body ground
        Tester Range 5 V/DIV., 20 ms./DIV.
        Condition "Refuel Ready" displayed on multi-information display
        GTY561477Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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