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Terminals Of Ecu

  1. CHECK CERTIFICATION ECU 
    Fig 1: Identifying Certification ECU Connector Terminal Identification
    GTY126519Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E13 ECU connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      +B1 (E13-1) - Body ground W - Body ground +B power supply Always 10 to 14 V
      IG (E13-18) - Body ground B - Body ground Ignition power supply Engine switch off Below 1 V
      IG (E13-18) - Body ground B - Body ground Ignition power supply Engine switch on (IG) 10 to 14 V
      E (E13-17) - Body ground W-B - Body ground Ground Always Below 1 Ω
      ACC (E13-19) - Body ground L - Body ground ACC power supply Engine switch off Below 1 V
      ACC (E13-19) - Body ground L - Body ground ACC power supply Engine switch on (ACC) 10 to 14 V
      TSW1 (E13-3) - Body ground GR - Body ground Entry lock switch signal Front lock switch LH not pushed 10 kΩ or higher
      TSW1 (E13-3) - Body ground GR - Body ground Entry lock switch signal Front lock switch LH pushed Below 1 Ω
      TSW2 (E13-4) - Body ground LG - Body ground Entry lock switch signal Front lock switch RH not pushed 10 kΩ or higher
      TSW2 (E13-4) - Body ground LG - Body ground Entry lock switch signal Front lock switch RH pushed Below 1 Ω
      TSW3 (E14-25) - Body ground LG - Body ground Entry lock switch signal Rear lock switch LH not pushed 10 kΩ or higher
      TSW3 (E14-25) - Body ground LG - Body ground Entry lock switch signal Rear lock switch LH pushed Below 1 Ω
      TSW4 (E14-26) - Body ground BR - Body ground Entry lock switch signal Rear lock switch RH not pushed 10 kΩ or higher
      TSW4 (E14-26) - Body ground BR - Body ground Entry lock switch signal Rear lock switch RH pushed Below 1 Ω
      LIN (E13-10) - Body ground BE - Body ground LIN line Always 10 kΩ or higher
      CANH (E13-27) - Body ground R - Body ground CAN line Always 10 kΩ or higher
      CANL (E13-28) - Body ground W - Body ground CAN line Always 10 kΩ or higher
      AGND (E13-40) - Body ground V - Body ground Ground Always Below 1 Ω
      TSW5 (E13-7) - Body ground G - Body ground Luggage compartment opener switch signal Opener switch OFF 10 kΩ or higher
      TSW5 (E13-7) - Body ground G - Body ground Luggage compartment opener switch signal Opener switch ON Below 1 Ω

      If the result is not as specified, the wire harness side may have a malfunction.

    3. Reconnect the E13 ECU connector.
    4. Measure the voltage according to the value(s) in the table below.
      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      CLG1 (E13-33) - CG1B (E13-34) LG - L Door electrical key oscillator (front LH) sensor signal All doors closed, all doors locked and engine switch off Alternating between 5 V and below 1 V
      CLG1 (E13-33) - CG1B (E13-34) LG - L Door electrical key oscillator (front LH) sensor signal Door unlocked or door open Below 1 V
      SEN1 (E13-22) - E (E13-17) B - W-B Touch sensor detection signal Outside door handle touched Below 1 V
      SEN1 (E13-22) - E (E13-17) B - W-B Touch sensor detection signal Outside door handle not touched (Have the electrical key outside the cabin) 10 to 14 V
      SEL1 (E13-5) - E (E13-17) V - W-B Touch sensor activation control signal Move the key more than 5 m (16.4 ft) away from the front door LH 10 to 14 V
      SEL1 (E13-5) - E (E13-17) V - W-B Touch sensor activation control signal Bring key to the outside handle Below 1 V
      CLG2 (E13-35) - CG2B (E13-36) W - B Door electrical key oscillator (front RH) sensor signal All doors closed, all doors locked and engine switch off Alternating between 5 V and below 1 V
      CLG2 (E13-35) - CG2B (E13-36) W - B Door electrical key oscillator (front RH) sensor signal Door unlocked or door open Below 1 V
      SEN2 (E13-23) - E (E13-17) BE - W-B Touch sensor detection signal Outside door handle touched Below 1 V
      SEN2 (E13-23) - E (E13-17) BE - W-B Touch sensor detection signal Outside door handle not touched (Have the electrical key outside the cabin) 10 to 14 V
      SEL2 (E13-6) - E (E13-17) P - W-B Touch sensor activation control signal Move the key more than 5 m (16.4 ft) away from the front door RH 10 to 14 V
      SEL2 (E13-6) - E (E13-17) P - W-B Touch sensor activation control signal Bring key to the outside handle Below 1 V
      CLG3 (E14-8) - CG3B (E14-9) R - G Door electrical key oscillator (rear LH) sensor signal All door closed, all doors locked and engine switch off Alternating between 5 V and below 1 V
      CLG3 (E14-8) - CG3B (E14-9) R - G Door electrical key oscillator (rear LH) sensor signal Door unlocked or door open Below 1 V
      SEN3 (E14-28) - E (E13-17) BE - W-B Touch sensor detection signal Outside door handle touched Below 1 V
      SEN3 (E14-28) - E (E13-17) BE - W-B Touch sensor detection signal Outside door handle not touched (Have the electrical key outside the cabin) 10 to 14 V
      SEL3 (E14-1) - E (E13-17) W - W-B Touch sensor activation control signal Make the key more than 5 m (16.4 ft) away from the rear door LH 10 to 14 V
      SEL3 (E14-1) - E (E13-17) W - W-B Touch sensor activation control signal Bring key to the outside handle Below 1 V
      CLG4 (E14-10) - CG4B (E14-11) G - R Door electrical key oscillator (rear RH) sensor signal All door closed, all doors locked and engine switch off Alternating between 5 V and below 1 V
      CLG4 (E14-10) - CG4B (E14-11) G - R Door electrical key oscillator (rear RH) sensor signal Door unlocked or door open Below 1 V
      SEN4 (E14-27) - E (E13-17) G - W-B Touch sensor detection signal Outside door handle touched Below 1 V
      SEN4 (E14-27) - E (E13-17) G - W-B Touch sensor detection signal Outside door handle not touched (Have the electrical key outside the cabin) 10 to 14 V
      SEL4 (E14-2) - E (E13-17) GR - W-B Touch sensor activation control signal Make the key more than 5 m (16.4 ft) away from the rear door RH 10 to 14 V
      SEL4 (E14-2) - E (E13-17) GR - W-B Touch sensor activation control signal Bring key to the outside handle Below 1 V
      CLG5 (E13-11) - CG5B (E13-12) R - W Indoor electrical key oscillator (front) sensor signal Within 30 seconds driver side door opened and closed, engine switch off Alternating between 5 V and below 1 V
      CLG5 (E13-11) - CG5B (E13-12) R - W Indoor electrical key oscillator (front) sensor signal Engine switch on (IG) Below 1 V
      CLG6 (E13-13) - CG6B (E13-14) Y - B Indoor electrical key oscillator (rear) sensor signal Within 30 seconds after driver side door opened and closed, engine switch off Alternating between 5 V and below 1 V
      CLG6 (E13-13) - CG6B (E13-14) Y - B Indoor electrical key oscillator (rear) sensor signal Engine switch on (IG) Below 1 V
      CLG7 (E13-15) - CG7B (E13-16) G - R Luggage electrical key oscillator (inner) sensor signal Luggage compartment door opening switch ON Alternating between 5 V and below 1 V
      CLG7 (E13-15) - CG7B (E13-16) G - R Luggage electrical key oscillator (inner) sensor signal Luggage compartment door opening switch OFF Below 1 V
      CLG8 (E13-31) - CG8B (E13-32) LG - L Luggage electrical key oscillator (outer) sensor signal Luggage compartment door opening switch ON Alternating between 5 V and below 1 V
      CLG8 (E13-31) - CG8B (E13-32) LG - L Luggage electrical key oscillator (outer) sensor signal Luggage compartment door opening switch OFF Below 1 V
      RC0 (E13-29) - E (E13-17) G - W-B Entry door control receiver power source Engine switch off, all doors closed and electrical key switch on 4.5 to 5.5 V
      RC0 (E13-29) - E (E13-17) G - W-B Entry door control receiver power source Engine switch off, all doors closed and electrical key switch off Below 1 V
      RSSI (E13-39) - E (E13-17) R - W-B Entry door control receiver electric wave existence signal Engine switch off, all doors closed, the electrical key is not in the action area 10 to 14 V
      RSSI (E13-39) - E (E13-17) R - W-B Entry door control receiver electric wave existence signal Engine switch off, all doors closed, the electrical key is in the action area Below 1 V
      RDA (E13-38) - E (E13-17) Y - W-B Entry door control receiver data input signal Engine switch off, all doors closed and electrical key switch off 10 to 14 V
      (Pulse generation)
      RDA (E13-38) - E (E13-17) Y - W-B Entry door control receiver data input signal Engine switch off, all doors closed and electrical key switch on Pulse generation
      RDA (E13-38) - Body ground Y - Body ground Tuner input signal Engine switch off, all doors closed, the electrical key is not in the action area 10 to 14 V
      (Pulse generation)
      RDA (E13-38) - Body ground Y - Body ground Tuner input signal The electrical key is in the action area. Pulse generation
      VC5 (E13-30) - Body ground BE - Body ground Transponder key amplifier power supply Electrical key is not in the cabin. Below 1 V
      VC5 (E13-30) - Body ground BE - Body ground Transponder key amplifier power supply Have the electrical key outside the cabin and open the driver's door. 4.5 to 5.5 V
      TXCT (E13-8) - Body ground GR - Body ground Transponder key amplifier output signal Electrical key is not in the cabin. Below 1 V
      TXCT (E13-8) - Body ground GR - Body ground Transponder key amplifier output signal Have the electrical key outside the cabin and open the driver's door. Pulse generation (see waveform 1)
      CODE (E13-9) - Body ground W - Body ground Transponder key amplifier communication signal Electrical key is not in the cabin. Below 1 V
      CODE (E13-9) - Body ground W - Body ground Transponder key amplifier communication signal Have the electrical key outside the cabin and open the driver's door. Hold the electrical key close to the engine switch with the brake pedal depressed. Pulse generation (see waveform 2)
      BZR (E13-21) - Body ground BE - Body ground Wireless door lock buzzer signal Wireless door lock buzzer OFF Below 1 V
      BZR (E13-21) - Body ground BE - Body ground Wireless door lock buzzer signal Wireless door lock buzzer ON Pulse generation

      If the result is not as specified, the ECU may have a malfunction.

    5. Inspect using an oscilloscope.
      Fig 2: Oscilloscope Waveform Graph 1
      GTY121524Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 1 (REFERENCE):

      Terminal TXCT - Body ground
      Tool Setting 2 V/DIV., 10 ms./DIV.
      Condition Have the electrical key outside the cabin and open the driver's door.
    6. Inspect using an oscilloscope.
      Fig 3: Oscilloscope Waveform Graph 2
      GTY126654Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 2 (REFERENCE):

      Terminal CODE - Body ground
      Tool Setting 2 V/DIV., 20 ms./DIV.
      Condition Have the electrical key outside the cabin and open the driver's door. Hold the electrical key close to the engine switch with the brake pedal depressed.
  2. MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK) 
    1. Measure the voltage and resistance according to the value(s) in the table below.
      Fig 4: Identifying Main Body ECU Connector Terminal Identification (Instrument Panel Junction Block)
      GTY116123Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      CANN (E59-15) - Body ground W - Body ground CAN Line Always 10 kΩ or higher
      CANP (E59-16) - Body ground B - Body ground CAN Line Always 10 kΩ or higher
      STP (DL-7) - Body ground W - Body ground Stop light switch signal Brake pedal depressed 10 to 14 V
      STP (DL-7) - Body ground W - Body ground Stop light switch signal Brake pedal not depressed Below 1 V

      If the result is not as specified, the junction block may have a malfunction.

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