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


  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    B002EF7C02
    *A for LHD *B for RHD

    1. Disconnect the A21 and K74 certification ECU (smart key ECU assembly) connectors.

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

      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      A21-11 (E) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      A21-2 (+B) - A21-11 (E) Input W - W-B Power supply Always 11 to 14 V -
      K74-6 (IG1D) - Body ground Output L - Body ground IG1 signal 20°C (68°F) 40.74 to 59.49 Ω IG1 Relay Monitor(Outside)
      K74-9 (IG2D) - Body ground Output B - Body ground IG2 signal 20°C (68°F) Approximately 302.97 Ω IG2 Relay Monitor(Outside)
      K74-4 (ACCD) - Body ground Output Y - Body ground ACC signal 20°C (68°F) 81.49 to 118.98 Ω ACC Relay Monitor
      A21-10 (CUTB) - A21-11 (E) Input

      P - W-B*1

      B - W-B*2

      		 Dark current cut pin*3 Always 11 to 14 V -

      • *1: for LHD

      • *2: for RHD

      • *3: In order to prevent the vehicle battery from being depleted when the vehicle is shipped long distances, a fuse that cuts unnecessary electrical load while the vehicle is being shipped is set in the circuit. If the fuse is removed, the circuit becomes open. If the fuse that is between the vehicle battery and terminal CUTB is removed and the circuit is open, the certification ECU (smart key ECU assembly) changes to a certain control mode (example: the transmission of electric waves every 0.25 seconds that form the detection area stops).

    3. Reconnect the A21 and K74 certification ECU (smart key ECU assembly) connectors.

    4. Measure the voltage and check for pulses according to the value(s) in the table below.

      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      K74-5 (IG) - A21-11 (E) Input B - W-B IG power supply Engine switch off → on (IG) Below 1 V → 11 to 14 V Engine Switch
      K74-12 (CLG1) - A21-11 (E) Output

      P - W-B*1

      W - W-B*2

      Output to driver door electrical key antenna

      (request signal (challenge) is sent to door electrical key antenna from certification ECU (smart key ECU assembly) to form detection area)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought inside detection area*3

      6. All doors locked through wireless operation

      		 Pulse generation (See waveform 1) Over Head + Driver Side (key diagnostic mode)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought outside detection area*4

      6. All doors locked through wireless operation

      		 Pulse generation (See waveform 2) Over Head + Driver Side (key diagnostic mode)
      K74-13 (CG1B) - A21-11 (E) Output R - W-B Output to driver door electrical key antenna (terminal on opposite side of component from CLG1 output terminal)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. All doors locked through wireless operation

      		 Pulse generation (See waveform 2) Over Head + Driver Side (key diagnostic mode)
      K74-11 (CLG2) - A21-11 (E) Output

      W - W-B*1

      P - W-B*2

      Output to front passenger door electrical key antenna

      (request signal (challenge) is sent to door electrical key antenna from certification ECU (smart key ECU assembly) to form detection area)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought inside detection area*3

      6. All doors locked through wireless operation

      		 Pulse generation (See waveform 1) Over Head + Passenger Side (key diagnostic mode)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought outside detection area*4

      6. All doors locked through wireless operation

      		 Pulse generation (See waveform 2) Over Head + Passenger Side (key diagnostic mode)
      K74-10 (CG2B) - A21-11 (E) Output R - W-B Output to front passenger door electrical key antenna (terminal on opposite side of component from CLG2 output terminal)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. All doors locked through wireless operation

      		 Pulse generation (See waveform 2) Over Head + Passenger Side (key diagnostic mode)

      T1-12 (CLG3) - A21-11 (E)*1

      U1-12 (CLG3) - A21-11 (E)*2

      		 Output

      P - W-B*1

      W - W-B*2

      Output to rear door LH electrical key antenna

      (request signal (challenge) is sent to door electrical key antenna from certification ECU (smart key ECU assembly) to form detection area)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought inside detection area*3

      6. All doors locked through wireless operation

      		 Pulse generation (See waveform 1) Over Head + Rear LH Side (key diagnostic mode)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought outside detection area*4

      6. All doors locked through wireless operation

      		 Pulse generation (See waveform 2) Over Head + Rear LH Side (key diagnostic mode)

      T1-13 (CG3B) - A21-11 (E)*1

      U1-13 (CG3B) - A21-11 (E)*2

      		 Output R - W-B Output to rear door LH electrical key antenna (terminal on opposite side of component from CLG3 output terminal)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. All doors locked through wireless operation

      		 Pulse generation (See waveform 2) Over Head + Rear LH Side (key diagnostic mode)

      T1-3 (CLG4) - A21-11 (E)*1

      U1-3 (CLG4) - A21-11 (E)*2

      		 Output

      W - W-B*1

      P - W-B*2

      Output to rear door RH electrical key antenna

      (request signal (challenge) is sent to door electrical key antenna from certification ECU (smart key ECU assembly) to form detection area)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought inside detection area*3

      6. All doors locked through wireless operation

      		 Pulse generation (See waveform 1) Over Head + Rear RH Side (key diagnostic mode)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought outside detection area*4

      6. All doors locked through wireless operation

      		 Pulse generation (See waveform 2) Over Head + Rear RH Side (key diagnostic mode)

      T1-4 (CG4B) - A21-11 (E)*1

      U1-4 (CG4B) - A21-11 (E)*2

      		 Output R - W-B Output to rear door RH electrical key antenna (terminal on opposite side of component from CLG4 output terminal)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. All doors locked through wireless operation

      		 Pulse generation (See waveform 2) Over Head + Rear RH Side (key diagnostic mode)
      K74-3 (CLG5) - A21-11 (E) Output GR - W-B Output to No. 1 indoor electrical key antenna assembly (front floor)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. Door is open

      4. Door is closed

      5. Within 30 seconds

      		 Pulse generation (See waveform 3) Over Head + Front Room (key diagnostic mode)
      K74-2 (CG5B) - A21-11 (E) Output B - W-B Output to No. 1 indoor electrical key antenna assembly (front floor) (terminal on opposite side of component from CLG5 output terminal)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. Door is open

      4. Door is closed

      5. Within 30 seconds

      		 Pulse generation (See waveform 3) Over Head + Front Room (key diagnostic mode)
      K74-20 (TSW1) - A21-11 (E) Input

      LG - W-B*1

      Y - W-B*2

      Driver door lock sensor signal input

      (Sends signal from door lock sensor on front door outside handle assembly to certification ECU (smart key ECU assembly)). Certification ECU (smart key ECU assembly) send 12 V pulse waveform every 40 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded.

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Driver door lock sensor not touched → touched

      		 Pulse generation (See waveform 6) D-Door Trigger Switch
      K74-8 (TSW2) - A21-11 (E) Input

      Y - W-B*1

      LG - W-B*2

      Front passenger door lock sensor signal input

      (Sends signal from door lock sensor on front door outside handle assembly to certification ECU (smart key ECU assembly)). Certification ECU (smart key ECU assembly) sends 12 V pulse waveform every 40 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded.

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Front passenger door lock sensor not touched → touched

      		 Pulse generation (See waveform 6) P-Door Trigger Switch

      T1-14 (TSW3) - A21-11 (E)*1

      U1-14 (TSW3) - A21-11 (E)*2

      		 Input

      V - W-B*1

      G - W-B*2

      Rear door LH lock sensor signal input

      (Sends signal from door lock sensor on rear door outside handle assembly to certification ECU (smart key ECU assembly)). Certification ECU (smart key ECU assembly) send 12 V pulse waveform every 40 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded.

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Rear door LH lock sensor not touched → touched

      		 Pulse generation (See waveform 6) Dr-Door Trigger Switch

      T1-16 (TSW4) - A21-11 (E)*1

      U1-16 (TSW4) - A21-11 (E)*2

      		 Input

      GR - W-B*1

      V - W-B*2

      Rear door RH lock sensor signal input

      (Sends signal from door lock sensor on rear door outside handle assembly to certification ECU (smart key ECU assembly)). Certification ECU (smart key ECU assembly) sends 12 V pulse waveform every 40 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded.

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Rear door RH lock sensor not touched → touched

      		 Pulse generation (See waveform 6) Pr-Door Trigger Switch
      K74-22 (SEN1) - A21-11 (E) Input

      B - W-B*1

      V - W-B*2

      Driver door unlock sensor signal input

      (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch sensor input signal (sensing) to certification ECU (smart key ECU assembly))

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors locked

      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle

      5. Driver door unlock sensor not touched → touched

      		 Pulse generation (See waveform 6) D-Door Touch Sensor
      K74-23 (SEN2) - A21-11 (E) Input

      V - W-B*1

      B - W-B*2

      Front passenger door unlock sensor signal input

      (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch sensor input signal (sensing) to certification ECU (smart key ECU assembly))

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors locked

      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle

      5. Front passenger door unlock sensor not touched → touched

      		 Pulse generation (See waveform 6) P-Door Touch Sensor

      T1-25 (SEN3) - A21-11 (E)*1

      U1-25 (SEN3) - A21-11 (E)*2

      		 Input

      L - W-B*1

      R - W-B*2

      Rear door LH unlock sensor signal input

      (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch sensor input signal (sensing) to certification ECU (smart key ECU assembly))

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors locked

      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle

      5. Rear door LH unlock sensor not touched → touched

      		 Pulse generation (See waveform 6) Dr-Door Touch Sensor

      T1-26 (SEN4) - A21-11 (E)*1

      U1-26 (SEN4) - A21-11 (E)*2

      		 Input

      W - W-B*1

      L - W-B*2

      Rear door RH unlock sensor signal input

      (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch sensor input signal (sensing) to certification ECU (smart key ECU assembly))

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors locked

      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle

      5. Rear door RH unlock sensor not touched → touched

      		 Pulse generation (See waveform 6) Pr-Door Touch Sensor

      T1-27 (TSW5) - A21-11 (E)*1

      U1-27 (TSW5) - A21-11 (E)*2

      		 Input SB- W-B Luggage electrical key switch assembly signal input Luggage electrical key switch assembly off → on Pulse generation (See waveform 6) Tr/B-Door Unlock SW

      T1-11 (CLG6) - A21-11 (E)*1

      U1-11 (CLG6) - A21-11 (E)*2

      		 Output Y - W-B Output to No. 2 indoor electrical key antenna assembly (rear floor)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. Door is open

      4. Door is closed

      5. Within 30 seconds

      		 Pulse generation (See waveform 3) Over Head + Rear Room (key diagnostic mode)

      T1-10 (CG6B) - A21-11 (E)*1

      U1-10 (CG6B) - A21-11 (E)*2

      		 Output L - W-B Output to No. 2 indoor electrical key antenna assembly (rear floor) (terminal on opposite side of component from CLG6 output terminal)

      Proceed:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. Door is open

      4. Door is closed

      5. Within 30 seconds

      		 Pulse generation (See waveform 3) Over Head + Rear Room (key diagnostic mode)

      T1-9 (CLG7) - A21-11 (E)*1

      U1-9 (CLG7) - A21-11 (E)*2

      		 Output P - W-B Output to No. 3 indoor electrical key antenna assembly (inside luggage)

      Proceed:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. All doors closed

      4. Driver door lock sensor not touched → touched

      		 Pulse generation (See waveform 4) Over Head + Luggage (inside) (key diagnostic mode)

      T1-8 (CG7B) - A21-11 (E)*1

      U1-8 (CG7B) - A21-11 (E)*2

      		 Output W - W-B Output to No. 3 indoor electrical key antenna assembly (inside luggage) (terminal on opposite side of component from CLG7 output terminal)

      Proceed:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. All doors closed

      4. Driver door lock sensor not touched → touched

      		 Pulse generation (See waveform 4) Over Head + Luggage (inside) (key diagnostic mode)
      K74-19 (POS1) - A21-11 (E) Output

      GR - W-B*1

      W - W-B*2

      		 Driver door unlock sensor power source (12 V (drops when engine switch turned on (IG))) Engine switch off → on (IG) 9 to 14 V → Below 2 V -
      K74-21 (POS2) - A21-11 (E) Output

      W - W-B*1

      GR - W-B*2

      		 Front passenger door unlock sensor power source (12 V (drops when engine switch turned on (IG))) Engine switch off → on (IG) 9 to 14 V → Below 2 V -

      T1-20 (POS3) - A21-11 (E)*1

      U1-20 (POS3) - A21-11 (E)*2

      		 Output

      SB - W-B*1

      P - W-B*2

      		 Rear door LH unlock sensor power source (12 V (drops when engine switch turned on (IG))) Engine switch off → on (IG) 9 to 14 V → Below 2 V -

      T1-22 (POS4) - A21-11 (E)*1

      U1-22 (POS4) - A21-11 (E)*2

      		 Output

      B - W-B*1

      SB - W-B*2

      		 Rear door RH unlock sensor power source (12 V (drops when engine switch turned on (IG))) Engine switch off → on (IG) 9 to 14 V → Below 2 V -

      T1-5 (RCO) - A21-11 (E)*1

      U1-5 (RCO) - A21-11 (E)*2

      		 Output

      SB - W-B*1

      LG - W-B*2

      Output to door control receiver

      (Power supply for door control receiver. Certification ECU (smart key ECU assembly) outputs 5 V when receiver starts operating.)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. Electrical key transmitter sub-assembly brought outside detection area*3 but kept inside wireless function operational area*4

      4. Lock or unlock switches of electrical key transmitter sub-assembly not pressed → pressed

      		 Pulse generation (See waveform 7) -

      T1-17 (RDAM) - A21-11 (E)*1

      U1-17 (RDAM) - A21-11 (E)*2

      		 Input

      LG - W-B*1

      R - W-B*2

      		 Door control receiver verifies data received from electrical key transmitter sub-assembly. Door control receiver sends data to ECU and intermittently grounds 12 V signal from certification ECU (smart key ECU assembly).

      Proceed:


      1. Engine switch off

      2. All doors locked

      3. Electrical key transmitter sub-assembly brought outside detection area*3 but kept inside wireless function operational area*4

      4. Lock or unlock switches of electrical key transmitter sub-assembly not pressed → pressed

      		 Pulse generation (See waveform 8) -

      T1-6 (CSEL) - A21-11 (E)*1

      U1-6 (CSEL) - A21-11 (E)*2

      		 Output P - W-B Communication channel switching circuit.

      Procedure:


      1. Engine switch off

      2. All doors closed

      		 Below 1 V → 4.5 to 6 V → Below 1 V Key diagnostic mode

      T1-7 (ASEL) - A21-11 (E)*1

      U1-7 (ASEL) - A21-11 (E)*2

      		 Output

      B - W-B*1

      L - W-B*2

      		 Communication antenna switching circuit.

      Procedure:


      1. All doors closed

      2. All doors locked

      3. Electrical key transmitter sub-assembly held and then luggage electrical key switch off → on

      		 Below 1 V → 4.5 to 6 V -

      T1-2 (CLG8) - A21-11 (E)*1

      U1-2 (CLG8) - A21-11 (E)*2

      		 Output Y - W-B Output to electrical key antenna (outside luggage)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Luggage electrical key switch assembly off → on

      		 Pulse generation (See waveform 5)

      Over Head + Luggage

      or

      Luggage + Luggage (key diagnostic mode)

      T1-1 (CG8B) - A21-11 (E)*1

      U1-1 (CG8B) - A21-11 (E)*2

      		 Output B - W-B Output to electrical key antenna (outside luggage) (terminal on opposite side of component from CLG8 output terminal)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Luggage electrical key switch assembly off → on

      		 Pulse generation (See waveform 5)

      Over Head + Luggage

      or

      Luggage + Luggage (key diagnostic mode)

      • *1: for LHD

      • *2: for RHD

      • *3: For details about the entry function detection area, refer to Operation Check.

        Click here

      • *4: For details about the areas that are inside the wireless function operation area, refer to Operation Check.

        Click here

    5. B002EXSE11

      Using an oscilloscope, check waveform 1.

      Tech Tips

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Waveform 1 (Reference)
      Item Content
      Tester Connection

      • K74-12 (CLG1) - A21-11 (E)

      • K74-11 (CLG2) - A21-11 (E)

      • T1-12 (CLG3) - A21-11 (E)*1

      • T1-3 (CLG4) - A21-11 (E)*1

      • U1-12 (CLG3) - A21-11 (E)*2

      • U1-3 (CLG4) - A21-11 (E)*2
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought inside detection area*3

      6. All doors locked through wireless operation

      • *1: for LHD

      • *2: for RHD

      • *3: For details about the entry function detection area, refer to Operation Check.

        Click here

    6. B002E5VE11

      Using an oscilloscope, check waveform 2.

      Tech Tips

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Waveform 2 (Reference)
      Item Content
      Tester Connection

      • K74-12 (CLG1) - A21-11 (E)

      • K74-11 (CLG2) - A21-11 (E)

      • T1-12 (CLG3) - A21-11 (E)*1

      • T1-3 (CLG4) - A21-11 (E)*1

      • U1-12 (CLG3) - A21-11 (E)*2

      • U1-3 (CLG4) - A21-11 (E)*2
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought outside detection area*3

      6. All doors locked through wireless operation

      • *1: for LHD

      • *2: for RHD

      • *3: For details about the entry function detection area, refer to Operation Check.

        Click here

      Waveform 2 (Reference)
      Item Content
      Tester Connection

      • K74-13 (CG1B) - A21-11 (E)

      • K74-10 (CG2B) - A21-11 (E)

      • T1-13 (CG3B) - A21-11 (E)*1

      • T1-4 (CG4B) - A21-11 (E)*1

      • U1-13 (CG3B) - A21-11 (E)*2

      • U1-4 (CG4B) - A21-11 (E)*2
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought outside detection area*3

      6. All doors locked through wireless operation

      • *1: for LHD

      • *2: for RHD

      • *3: For details about the entry function detection area, refer to Operation Check.

        Click here

    7. B002ENBC30
      *a Door open
      *b After approximately 30 seconds from when the door is closed

      Using an oscilloscope, check waveform 3.

      Tech Tips

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Waveform 3 (Reference)
      Item Content
      Tester Connection

      • K74-3 (CLG5) - A21-11 (E)

      • K74-2 (CG5B) - A21-11 (E)

      • T1-11 (CLG6) - A21-11 (E)*1

      • T1-10 (CG6B) - A21-11 (E)*1

      • U1-11 (CLG6) - A21-11 (E)*2

      • U1-10 (CG6B) - A21-11 (E)*2
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. Door is open

      4. Door is closed

      5. Within 30 seconds

      • *1: for LHD

      • *2: for RHD

    8. B002CNQC18
      *a Before driver door lock sensor touched
      *b After driver door lock sensor touched

      Using an oscilloscope, check waveform 4.

      Tech Tips

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Waveform 4 (Reference)
      Item Content
      Tester Connection

      • T1-9 (CLG7) - A21-11 (E)*1

      • T1-8 (CG7B) - A21-11 (E)*1

      • U1-9 (CLG7) - A21-11 (E)*2

      • U1-8 (CG7B) - A21-11 (E)*2
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. All doors closed

      4. Driver door lock sensor not touched → touched

      • *1: for LHD

      • *2: for RHD

    9. B002EPAC19
      *a Engine switch off, all doors closed and luggage electrical key switch assembly off → on

      Using an oscilloscope, check waveform 5.

      Note

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Waveform 5 (Reference)
      Item Content
      Tester Connection

      • T1-2 (CLG8) - A21-11 (E)*1

      • T1-1 (CG8B) - A21-11 (E)*1

      • U1-2 (CLG8) - A21-11 (E)*2

      • U1-1 (CG8B) - A21-11 (E)*2
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Luggage electrical key switch assembly off → on

      • *1: for LHD

      • *2: for RHD

    10. B002CVDC24
      *a In actuality, sampling is being performed

      Using an oscilloscope, check waveform 6.

      Tech Tips

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Waveform 6 (Reference)
      Item Content
      Tester Connection K74-20 (TSW1) - A21-11 (E)
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Driver door lock sensor not touched → touched
      Waveform 6 (Reference)
      Item Content
      Tester Connection K74-8 (TSW2) - A21-11 (E)
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Front passenger door lock sensor not touched → touched
      Waveform 6 (Reference)
      Item Content
      Tester Connection

      • T1-14 (TSW3) - A21-11 (E)*1

      • U1-14 (TSW3) - A21-11 (E)*2
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Rear door LH lock sensor not touched → touched

      • *1: for LHD

      • *2: for RHD

      Waveform 6 (Reference)
      Item Content
      Tester Connection

      • T1-16 (TSW4) - A21-11 (E)*1

      • U1-16 (TSW4) - A21-11 (E)*2
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Rear door RH lock sensor not touched → touched

      • *1: for LHD

      • *2: for RHD

      Waveform 6 (Reference)
      Item Content
      Tester Connection K74-22 (SEN1) - A21-11 (E)
      Tool Setting 2 V/DIV., 500 ms./DIV
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors locked

      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle

      5. Driver door unlock sensor not touched → touched
      Waveform 6 (Reference)
      Item Content
      Tester Connection K74-23 (SEN2) - A21-11 (E)
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors locked

      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle

      5. Front passenger door unlock sensor not touched → touched
      Waveform 6 (Reference)
      Item Content
      Tester Connection

      • T1-25 (SEN3) - A21-11 (E)*1

      • U1-25 (SEN3) - A21-11 (E)*2
      Tool Setting 2 V/DIV., 500 ms./DIV
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors locked

      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle

      5. Rear door LH unlock sensor not touched → touched

      • *1: for LHD

      • *2: for RHD

      Waveform 6 (Reference)
      Item Content
      Tester Connection

      • T1-26 (SEN4) - A21-11 (E)*1

      • U1-26 (SEN4) - A21-11 (E)*2
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors locked

      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle

      5. Rear door RH unlock sensor not touched → touched

      • *1: for LHD

      • *2: for RHD

      Waveform 6 (Reference)
      Item Content
      Tester Connection

      • T1-27 (TSW5) - A21-11 (E)*1

      • U1-27 (TSW5) - A21-11 (E)*2
      Tool Setting 2 V/DIV., 500 ms./DIV
      Condition Luggage electrical key switch assembly off → on

      • *1: for LHD

      • *2: for RHD

    11. B002DUGC28
      *a Before lock or unlock switches of electrical key transmitter sub-assembly pressed
      *b After lock or unlock switches of electrical key transmitter sub-assembly pressed

      Using an oscilloscope, check waveform 7.

      Tech Tips

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Waveform 7 (Reference)
      Item Content
      Tester Connection

      • T1-5 (RCO) - A21-11 (E)*1

      • U1-5 (RCO) - A21-11 (E)*2
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. Electrical key transmitter sub-assembly brought outside detection area*3 but kept inside wireless function operational area*4

      4. Lock or unlock switches of electrical key transmitter sub-assembly not pressed → pressed

      • *1: for LHD

      • *2: for RHD

      • *3: For details about the areas that are outside the entry function detection area, refer to Operation Check

        Click here

      • *4: For details about the areas that are inside the wireless function operational area, refer to Operation Check

        Click here

    12. B002DVSC31
      *a Before lock or unlock switches of electrical key transmitter sub-assembly pressed
      *b After lock or unlock switches of electrical key transmitter sub-assembly pressed

      Using an oscilloscope, check waveform 8.

      Tech Tips

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Waveform 8 (Reference)
      Item Content
      Tester Connection

      • T1-17 (RDAM) - A21-11 (E)*1

      • U1-17 (RDAM) - A21-11 (E)*2
      Tool Setting 5 V/DIV., 500 ms./DIV.
      Condition

      Proceed:


      1. Engine switch off

      2. All doors locked

      3. Electrical key transmitter sub-assembly brought outside detection area*3 but kept inside wireless function operational area*4

      4. Lock or unlock switches of electrical key transmitter sub-assembly not pressed → pressed

      • *1: for LHD

      • *2: for RHD

      • *3: For details about the areas that are outside the entry function detection area, refer to Operation Check

        Click here

      • *4: For details about the areas that are inside the wireless function operational area, refer to Operation Check

        Click here

  2. CHECK JUNCTION BLOCK ASSEMBLY LH AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


    1. Remove the main body ECU (multiplex network body ECU) from the cowl side junction block LH.

      Click here

    2. Connect the cowl side junction block LH connectors.

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

      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      MB-11 (GND1) - Body ground - - Ground Always Below 1 Ω -
      MB-29 (ACC) - Body ground Input - ACC power supply Engine switch on (ACC) 11 to 14 V ACC SW
      Engine switch off Below 1 V
      MB-30 (BECU) - Body ground Input - Battery power supply Always 11 to 14 V -
      MB-31 (ALTB) - Body ground Input - Battery power supply Always 11 to 14 V -
      MB-32 (IG) - Body ground Input - IG power supply Engine switch on (IG) 11 to 14 V IG SW
      Engine switch off Below 1 V

    4. Install the main body ECU (multiplex network body ECU) to the cowl side junction block LH.

      Click here

    5. Measure the voltage and check for pulses according to the value(s) in the table below.

      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      5C-30 (LSWL) - Body ground Input B - Body ground Rear door LH unlock detection switch input Engine switch off, all doors closed and rear door LH locked → unlocked

      Pulse generation

      (See waveform 1)

      		 RL-Door Lock Pos SW
      K11-7 (LSFL) - Body ground Input SB - Body ground Driver door unlock detection switch input Engine switch off, all doors closed and driver door locked → unlocked

      Pulse generation

      (See waveform 1)

      		 FL Door Lock Pos
      5A-33 (FRCY) - Body ground Input R - Body ground Front door courtesy light switch RH input Front passenger side door closed → open 11 to 14 V → Below 1 V FR Door Courtesy SW
      5C-44 (FLCY) - Body ground Input R - Body ground Front door courtesy light switch LH input Driver door closed → open

      Pulse generation

      (See waveform 2)

      		 FL Door Courtesy SW
      K10-3 (LCTY) - Body ground Input G- Body ground Rear door courtesy light switch LH input Rear door LH closed → open

      Pulse generation

      (See waveform 2)

      		 RL Door Courtesy SW
      K11-6 (RCTY) - Body ground Input G - Body ground Rear door courtesy light switch RH input Rear door RH closed → open

      Pulse generation

      (See waveform 2)

      		 RR Door Courtesy SW
      K12-2 (LSWR) - Body ground Input B - Body ground Rear door RH unlock detection switch input Engine switch off, all doors closed and rear door RH locked → unlocked

      Pulse generation

      (See waveform 1)

      		 RR-Door Lock Pos SW
      K11-18 (LSFR) - Body ground Input SB - Body ground Front door RH unlock detection switch input Engine switch off, all doors closed and front passenger door locked → unlocked

      Pulse generation

      (See waveform 1)

      		 FR Door Lock Pos
      5D-27 (BZR) - Body ground Output G - Body ground Wireless buzzer signal output

      Procedure:


      1. Engine switch off

      2. All doors closed

      3. Lock switch of electrical key transmitter sub-assembly not pressed → pressed

      		 Below 1 V → pulse generation -
    6. B002ERTC02
      *a Door locked
      *b Door unlocked

      Using an oscilloscope, check waveform 1.

      Note

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Waveform 1 (Reference)
      Item Content
      Tester Connection

      5C-30 (LSWL) - Body ground

      K11-7 (LSFL) - Body ground

      K12-2 (LSWR) - Body ground

      K11-18 (LSFR) - Body ground
      Tool Setting 2 V/DIV., 200 ms./DIV.
      Condition Door locked → unlocked
    7. B002ERTC03
      *a Door closed
      *b Door open

      Using an oscilloscope, check waveform 2.

      Note

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Waveform 2 (Reference)
      Item Content
      Tester Connection

      5C-44 (FLCY) - Body ground

      5A-33 (FRCY) - Body ground

      K10-3 (LCTY) - Body ground

      K11-6 (RCTY) - Body ground
      Tool Setting 2 V/DIV., 200 ms./DIV.
      Condition Door closed → opened