ENTRY AND START SYSTEM (for Entry Function) TERMINALS OF ECU


  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A01ES71E14

    1. Disconnect the E29 ECU connector.

    2. Measure the resistance and voltage of the wire harness side connector.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E29-17 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      E29-1 (+B) - Body ground B - Body ground +B power supply Always 11 to 14 V
      E29-18 (IG) - Body ground B - Body ground Ignition power supply Engine switch off Below 1 V
      Engine switch on (IG) 11 to 14 V
      E29-3 (TSW1) - E29-17 (E) G - W-B Door outside handle (driver side) lock switch signal Switch released 10 kΩ or higher
      Switch pressed in Below 1 Ω
      E29-4 (TSW2) - E29-17 (E) BR - W-B Door outside handle (front passenger side) lock switch signal Switch released 10 kΩ or higher
      Switch pressed in Below 1 Ω
      E30-25 (TSW3) - E29-17 (E) G - W-B

      • Door outside handle (rear LH) lock switch signal*1

      • Door outside handle (rear RH) lock switch signal*2

      		 Switch released 10 kΩ or higher
      Switch pressed in Below 1 Ω
      E30-26 (TSW4) - E29-17 (E) G - W-B

      • Door outside handle (rear RH) lock switch signal*1

      • Door outside handle (rear LH) lock switch signal*2

      		 Switch released 10 kΩ or higher
      Switch pressed in Below 1 Ω
      E29-7 (TSW5) - E29-17 (E) L - W-B Back door lock switch signal Switch released 10 kΩ or higher
      Switch pressed in Below 1 Ω

      *1: for LHD

      *2: for RHD


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

    3. Reconnect the E29 ECU connector.

    4. Measure the voltage of the connector.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E29-33 (CLG1) - E29-34 (CG1B) L - W Door electrical key oscillator (driver side) sensor signal All doors closed, all doors locked and engine switch off Alternating between 5 V and below 1 V
      Door unlocked or door open Below 1 V
      E29-22 (SEN1) - E29-17 (E) R - W-B Touch sensor detection signal Door outside handle touched 11 to 14 V
      Door outside handle not touched Below 1 V
      E29-5 (SEL1) - E29-17 (E) Y - W-B Touch sensor activation control signal Key at least 5 m (16.4 ft.) away from door 11 to 14 V
      Key moved near outside door handle Below 1 V
      E29-35 (CLG2) - E29-36 (CG2B) L - R Door electrical key oscillator (front passenger side) sensor signal All doors closed, all doors locked and engine switch off Alternating between 5 V and below 1 V
      Door unlocked or door open Below 1 V
      E29-23 (SEN2) - E29-17 (E) R - W-B Touch sensor detection signal Door outside handle touched 11 to 14 V
      Door outside handle not touched Below 1 V
      E29-6 (SEL2) - E29-17 (E) Y - W-B Touch sensor activation control signal Key at least 5 m (16.4 ft.) away from door 11 to 14 V
      Key moved near outside door handle Below 1 V
      E30-8 (CLG3) - E30-9 (CG3B) L - W

      • Door electrical key oscillator (rear LH) sensor signal*1

      • Door electrical key oscillator (rear RH) sensor signal*2

      		 All doors closed, all doors locked and engine switch off Alternating between 5 V and below 1 V
      Door unlocked or door open Below 1 V
      E30-28 (SEN3) - E29-17 (E) R - W-B Touch sensor detection signal Door outside handle touched 11 to 14 V
      Door outside handle not touched Below 1 V
      E30-1 (SEL3) - E29-17 (E) Y - W-B Touch sensor activation control signal Key at least 5 m (16.4 ft.) away from door 11 to 14 V
      Key moved near outside door handle Below 1 V
      E30-10 (CLG4) - E30-11 (CG4B) L - W

      • Door electrical key oscillator (rear RH) sensor signal*1

      • Door electrical key oscillator (rear LH) sensor signal*2

      		 All doors closed, all doors locked and engine switch off Alternating between 5 V and below 1 V
      Door unlocked or door open Below 1 V
      E30-27 (SEN4) - E29-17 (E) R - W-B Touch sensor detection signal Door outside handle touched 11 to 14 V
      Door outside handle not touched Below 1 V
      E30-2 (SEL4) - E29-17 (E) Y - W-B Touch sensor activation control signal Key at least 5 m (16.4 ft.) away from door 11 to 14 V
      Key moved near outside door handle Below 1 V
      E29-11 (CLG5) - E29-12 (CG5B) SB - V Indoor electrical key antenna (for front floor) sensor signal 30 seconds after driver side door opened and closed, engine switch off Alternating between 5 V and below 1 V
      Within 30 seconds after driver side door opened and closed, engine switch off Below 1 V
      E29-13 (CLG6) - E29-14 (CG6B) R - SB Indoor electrical key antenna (for rear floor) sensor signal 30 seconds after driver side door opened and closed, engine switch off Alternating between 5 V and below 1 V
      Within 30 seconds after driver side door opened and closed, engine switch off Below 1 V
      E29-15 (CLG7) - E29-16 (CG7B) GR - W Indoor electrical key antenna (for luggage compartment) sensor signal 30 seconds after driver side door opened and closed, engine switch off Alternating between 5 V and below 1 V
      Within 30 seconds after driver side door opened and closed, engine switch off Below 1 V
      E29-31 (CLG8) - E29-32 (CG8B) G - GR Back door electrical key antenna (for outside luggage compartment) sensor signal Back door opener switch off Alternating between 5 V and below 1 V
      Back door opener switch on Below 1 V
      E29-29 (RCO) - E29-17 (E) B - W-B Door control receiver power source Engine switch off, all doors closed and transmitter switch not pressed → pressed Below 1 V → 4.6 to 5.4 V → Below 1 V
      E29-39 (RSSI) - E29-17 (E) L - W-B Door control receiver electric wave existence signal Engine switch off, all doors closed and transmitter switch not pressed → pressed 11 to 14 V → Below 1 V
      E29-38 (RDA) - E29-17 (E) LG - W-B Door control receiver data input signal Engine switch off, all doors closed and transmitter switch not pressed → pressed Below 1 V → 11 to 14 V → Below 1 V
      E29-21 (BZR) - E29-17 (E) LG - W-B Wireless door lock buzzer signal Answer-back on Pulse generation
      Answer-back off Below 1 V

      *1: for LHD

      *2: for RHD


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

  2. CHECK MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

    A01EOYJE03

    1. Disconnect the E1, E2, E3, 2A, 2B and 2D ECU connectors.

    2. Measure the resistance and voltage of the wire harness side connectors.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      2D-62 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      E3-1 (GND3) - Body ground BR - Body ground Ground Always Below 1 Ω
      2A-1 (ALTB) - Body ground B - Body ground ALTB power supply Always 11 to 14 V
      2B-20 (BATB) - Body ground L - Body ground BATB power supply Always 11 to 14 V
      E1-6 (AM1) - Body ground W - Body ground AM1 power supply Always 11 to 14 V
      E2-1 (AM2) - Body ground W - Body ground AM2 power supply Always 11 to 14 V
      2A-1 (IG) - Body ground B - Body ground IG1 signal Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      2A-1 (ACC) - Body ground B - Body ground ACC signal Engine switch on (ACC) 11 to 14 V
      Engine switch off Below 1 V

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

    3. Reconnect the E1, E2, E3, 2A, 2B and 2D ECU connectors.

    4. Measure the voltage of the connectors.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E1-24 (DCTY) - Body ground

      L - Body ground*1

      P - Body ground*2

      		 Driver side door courtesy switch input Driver side door open Below 1 V
      Engine switch off, and driver side door courtesy switch off Pulse generation (see waveform 1 or 2)
      E2-21 (PCTY) - Body ground

      P - Body ground*1

      L - Body ground*2

      		 Front passenger side door courtesy switch input Front passenger side door open Below 1 V
      Engine switch off, and passenger side door courtesy switch off Pulse generation (see waveform 3 or 4)
      2C-2 (LCTY) - Body ground W - Body ground Rear door LH courtesy light switch input Rear door LH open Below 1 V
      Engine switch off, and rear LH side door courtesy switch off Pulse generation (see waveform 5 or 6)
      E2-7 (RCTY) - Body ground G - Body ground Rear door RH courtesy light switch input Rear door RH open Below 1 V
      Engine switch off, and rear RH side door courtesy switch off Pulse generation (see waveform 7 or 8)
      E2-25 (BCTY) - Body ground W - Body ground Back door courtesy light switch input Back door open Below 1 V
      Engine switch off, and back door closed Pulse generation (see waveform 9 or 10)
      E3-7 (HZSW) - Body ground BE - Body ground Hazard warning light signal Answer-back on Below 1 V
      Answer-back off 11 to 14 V
      E1-26 (BDSU) - Body ground L - Body ground Back door opener switch input Back door lock opener switch off Below 1 V
      Back door lock opener switch on Pulse generation (see waveform 11 or 12)

      *1: for LHD

      *2: for RHD

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

    5. A01ENKBE01

      Using an oscilloscope, check waveform 1.

      Waveform 1 (Reference)
      Item Content
      Terminal No. (Symbol) E1-24 (DCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and driver side door courtesy switch off
    6. A01EP42E01

      Using an oscilloscope, check waveform 2.

      Waveform 2 (Reference)
      Item Content
      Terminal No. (Symbol) E1-24 (DCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and driver side door courtesy switch off
    7. A01EQ08E01

      Using an oscilloscope, check waveform 3.

      Waveform 3 (Reference)
      Item Content
      Terminal No. (Symbol) E2-21 (PCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and passenger side door courtesy switch off
    8. A01EROTE01

      Using an oscilloscope, check waveform 4.

      Waveform 4 (Reference)
      Item Content
      Terminal No. (Symbol) E2-21 (PCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and passenger side door courtesy switch off
    9. A01ENKBE01

      Using an oscilloscope, check waveform 5.

      Waveform 5 (Reference)
      Item Content
      Terminal No. (Symbol) 2C-2 (LCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and rear LH side door courtesy switch off
    10. A01EP42E01

      Using an oscilloscope, check waveform 6.

      Waveform 6 (Reference)
      Item Content
      Terminal No. (Symbol) 2C-2 (LCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and rear LH side door courtesy switch off
    11. A01ENKBE01

      Using an oscilloscope, check waveform 7.

      Waveform 7 (Reference)
      Item Content
      Terminal No. (Symbol) E2-7 (RCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and rear RH side door courtesy switch off
    12. A01EP42E01

      Using an oscilloscope, check waveform 8.

      Waveform 8 (Reference)
      Item Content
      Terminal No. (Symbol) E2-7 (RCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and rear RH side door courtesy switch off
    13. A01ENKBE01

      Using an oscilloscope, check waveform 9.

      Waveform 9 (Reference)
      Item Content
      Terminal No. (Symbol) E2-25 (BCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and back door closed
    14. A01EP42E01

      Using an oscilloscope, check waveform 10.

      Waveform 10 (Reference)
      Item Content
      Terminal No. (Symbol) E2-25 (BCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and back door closed
    15. A01EQ08E01

      Using an oscilloscope, check waveform 11.

      Waveform 11 (Reference)
      Item Content
      Terminal No. (Symbol) E1-26 (BDSU) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and back door lock opener switch on
    16. A01EROTE01

      Using an oscilloscope, check waveform 12.

      Waveform 12 (Reference)
      Item Content
      Terminal No. (Symbol) E1-26 (BDSU) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and back door lock opener switch on

  3. CHECK POWER BACK DOOR UNIT (w/ Power Back Door)

    A01ERGSE09

    1. Disconnect the L36 unit connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      L36-10 (ECUB) - Body ground R - Body ground ECUB power supply Always 11 to 14 V
      L36-11 (GND) - Body ground W-B - Body ground Body ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the L36 unit connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      L36-2 (DC+) - L36-1 (DC-) R - B Power back door lock motor circuit Back door lock motor is operating 11 to 14 V
      L36-2 (DC+) - L36-1 (DC-) R - B Power back door lock motor circuit Back door lock motor is stopped Below 1 V

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