SMART ENTRY AND START SYSTEM TERMINALS OF ECU


  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. Disconnect the D36 certification ECU (smart key ECU assembly) connector.

      A017DQOE13

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      D36-1 (+B) - Body ground B - Body ground +B power supply Always 11 to 14 V
      D36-3 (TSW1) - Body ground LG - Body ground Entry lock switch (driver side) signal Front lock switch not pushed 10 kΩ or higher
      D36-3 (TSW1) - Body ground LG - Body ground Entry lock switch (driver side) signal Front lock switch pushed Below 1 Ω
      D36-4 (TSW2) - Body ground GR - Body ground Entry lock switch (front passenger side) signal Front lock switch not pushed 10 kΩ or higher
      D36-4 (TSW2) - Body ground GR - Body ground Entry lock switch (front passenger side) signal Front lock switch pushed Below 1 Ω
      D36-7 (TSW5) - Body ground BR - Body ground Back door entry lock switch signal Lock switch OFF 10 kΩ or higher
      D36-7 (TSW5) - Body ground BR - Body ground Back door entry lock switch signal Lock switch ON Below 1 Ω
      D36-10 (LIN) - Body ground L - Body ground LIN line Always 10 kΩ or higher
      D36-17 (E) - Body ground B - Body ground Ground Always Below 1 Ω
      D36-18 (IG) - Body ground G - Body ground Ignition power supply Engine switch off Below 1 V
      D36-18 (IG) - Body ground G - Body ground Ignition power supply Engine switch on (IG) 11 to 14 V
      D36-19 (ACC) - Body ground SB - Body ground ACC power supply Engine switch off Below 1 V
      D36-19 (ACC) - Body ground SB - Body ground ACC power supply Engine switch on (ACC) 11 to 14 V
      D36-27 (CANH) - Body ground GR - Body ground CAN line Always 10 kΩ or higher
      D36-28 (CANL) - Body ground W - Body ground CAN line Always 10 kΩ or higher
      D36-40 (AGND) - Body ground V - Body ground Ground Always Below 1 Ω

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

    3. Reconnect the D36 certification ECU (smart key ECU assembly) connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      D36-5 (SEL1) - D36-17 (E) P - B Touch sensor (driver side) activation control signal The key is moved more than 5 m (16.4 ft.) away from the front door. 11 to 14 V
      D36-5 (SEL1) - D36-17 (E) P - B Touch sensor (driver side) activation control signal The key is moved to the door outside handle. Below 1 V
      D36-6 (SEL2) - D36-17 (E) Y - B Touch sensor (front passenger side) activation control signal The key is moved more than 5 m (16.4 ft.) away from the front passenger door. 11 to 14 V
      D36-6 (SEL2) - D36-17 (E) Y - B Touch sensor (front passenger side) activation control signal The key is moved to the door outside handle. Below 1 V
      D36-8 (TXCT) - Body ground O - Body ground Transponder key amplifier output signal Electrical key is not in the cabin. Below 1 V
      D36-8 (TXCT) - Body ground O - Body ground Transponder key amplifier output signal Electrical key is outside the cabin and the driver's door is open. Pulse generation (see waveform 1)
      D36-9 (CODE) - Body ground GR - Body ground Transponder key amplifier communication signal Electrical key is not in the cabin. Below 1 V
      D36-9 (CODE) - Body ground GR - Body ground Transponder key amplifier communication signal Electrical key is outside the cabin and the driver's door is open. Electrical key is held close to the engine switch with the brake pedal depressed. Pulse generation (see waveform 2)
      D36-11 (CLG5) - D36-12 (CG5B) R - W Indoor electrical key oscillator (front) sensor signal Within 30 seconds after driver side door opened and closed, engine switch off Alternating between 5 V and below -5 V
      D36-11 (CLG5) - D36-12 (CG5B) R - W Indoor electrical key oscillator (front) sensor signal Engine switch on (IG) Below 1 V
      D36-13 (CLG6) - D36-14 (CG6B) R - SB Indoor electrical key oscillator (center) sensor signal Within 30 seconds after driver side door opened and closed, engine switch off Alternating between 5 V and below -5 V
      D36-13 (CLG6) - D36-14 (CG6B) R - SB Indoor electrical key oscillator (center) sensor signal Engine switch on (IG) Below 1 V
      D36-15 (CLG7) - D36-16 (CG7B) G - O 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 -5 V
      D36-15 (CLG7) - D36-16 (CG7B) G - O Indoor electrical key oscillator (rear) sensor signal Engine switch on (IG) Below 1 V
      D36-21 (BZR) - Body ground R - Body ground Wireless door lock buzzer signal Wireless door lock buzzer OFF Below 1 V
      D36-21 (BZR) - Body ground R - Body ground Wireless door lock buzzer signal Wireless door lock buzzer ON Pulse generation
      D36-22 (SEN1) - D36-17 (E) O - B Touch sensor (driver side) detection signal Door outside handle touched Below 1 V
      D36-22 (SEN1) - D36-17 (E) O - B Touch sensor (driver side) detection signal Door outside handle not touched (the electrical key is outside the cabin) 11 to 14 V
      D36-23 (SEN2) - D36-17 (E) W - B Touch sensor (front passenger side) detection signal Door outside handle touched Below 1 V
      D36-23 (SEN2) - D36-17 (E) W - B Touch sensor (front passenger side) detection signal Door outside handle not touched (the electrical key is outside the cabin) 11 to 14 V
      D36-29 (RC0) - D36-17 (E) V - B Entry door control receiver power source Engine switch off, all doors closed and electrical key switch on 4.5 to 5.5 V
      D36-29 (RC0) - D36-17 (E) V - B Entry door control receiver power source Engine switch off, all doors closed and electrical key switch off Below 1 V
      D36-30 (VC5) - Body ground G - Body ground Transponder key amplifier power supply Electrical key is not in the cabin. Below 1 V
      D36-30 (VC5) - Body ground G - Body ground Transponder key amplifier power supply Electrical key is outside the cabin and the driver's door is open. 4.5 to 5.5 V
      D36-31 (CLG8) - D36-32 (CG8B) LG - P Outside electrical key oscillator (back door) sensor signal Back door opener switch ON Alternating between 5 V and below -5 V
      D36-31 (CLG8) - D36-32 (CG8B) LG - P Outside electrical key oscillator (back door) sensor signal Back door opener switch OFF Below 1 V
      D36-33 (CLG1) - D36-17 (E) GR - B Door electrical key oscillator (driver side) sensor signal All doors closed and locked and engine switch off Alternating between 5 V and below 1 V
      D36-33 (CLG1) - D36-17 (E) GR - B Door electrical key oscillator (driver side) sensor signal Door unlocked or open Below 1 V
      D36-35 (CLG2) - D36-17 (E) LG - B Door electrical key oscillator (front passenger side) sensor signal All doors closed and locked and engine switch off Alternating between 5 V and below 1 V
      D36-35 (CLG2) - D36-17 (E) LG - B Door electrical key oscillator (front passenger side) sensor signal Door unlocked or open Below 1 V
      D36-38 (RDA) - D36-17 (E) Y - B Entry door control receiver data input signal Engine switch off, all doors closed and electrical key switch off

      11 to 14 V

      (Pulse generation)
      D36-38 (RDA) - D36-17 (E) Y - B Entry door control receiver data input signal Engine switch off, all doors closed and electrical key switch on Pulse generation
      D36-38 (RDA) - Body ground Y - Body ground Tuner input signal Engine switch off, all doors closed, and the electrical key is not in the detection area.

      11 to 14 V

      (Pulse generation)
      D36-38 (RDA) - Body ground Y - Body ground Tuner input signal The electrical key is in the detection area. Pulse generation
      D36-39 (RSSI) - D36-17 (E) B - B Entry door control receiver electric wave existence signal Engine switch off, all doors closed, and the electrical key is not in the detection area. 11 to 14 V
      D36-39 (RSSI) - D36-17 (E) B - B Entry door control receiver electric wave existence signal Engine switch off, all doors closed, and the electrical key is in the detection area. Below 1 V

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

    5. A017F26E01

      Inspect using an oscilloscope.

      Waveform 1 (Reference):
      Tester Connection D36-8 (TXCT) - Body ground
      Tool Setting 2 V/DIV., 50 ms./DIV.
      Condition The electrical key is outside the cabin and the driver's door is open.
    6. A017DJBE01

      Inspect using an oscilloscope.

      Waveform 2 (Reference):
      Tester Connection D36-9 (CODE) - Body ground
      Tool Setting 2 V/DIV., 50 ms./DIV.
      Condition The electrical key is outside the cabin and the driver's door is open. The electrical key is held close to the engine switch with the brake pedal depressed.

  2. MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)


    1. Disconnect the 1M and 1F junction block connectors.

    2. Disconnect the D8 main body ECU (instrument panel junction block) connector.

      A017BEHE15

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      1M-9 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      1F-10 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      D8-15 (CANN) - Body ground W - Body ground CAN line Always 10 kΩ or higher
      D8-16 (CANP) - Body ground Y - Body ground CAN line Always 10 kΩ or higher

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

    4. Reconnect the 1M and 1F junction block connectors.

    5. Reconnect the D8 main body ECU (instrument panel junction block ) connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      1M-7 (STP) - Body ground GR - Body ground Stop light switch signal Brake pedal depressed 11 to 14 V
      1M-7 (STP) - Body ground GR - Body ground Stop light switch signal Brake pedal released Below 1 V

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