Click here

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

Click here
Click here
Click here
  1. B006YKKN67

    CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. Disconnect the K62 certification ECU (smart key ECU assembly) connector.

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

      Tester Connection Wiring Color Input/Output Terminal Description Condition Specified Condition Related Data List Item
      K62-18 (E) - Body ground W-B - Body ground - Ground Always Below 1 Ω -
      K62-4 (+B) - K62-18 (E) W - W-B Input Power supply Always 11 to 14 V -
      K62-15 (CUTB) - K62-18 (E) R - W-B Input Dark current cut pin* Always 11 to 14 V -

      • *: 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 installed 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 radio waves every 0.25 seconds, which form the detection area, stops).

    3. Reconnect the K62 certification ECU (smart key ECU assembly) connector.

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

      Tester Connection Wiring Color Input/Output Terminal Description Condition Specified Condition Related Data List Item
      K62-17 (IG1D) - K62-18 (E) R - W-B Output IG power supply Engine switch off → on (IG) Below 1 V → 10 V or higher
      • Power source control

      • IG Relay Monitor (Outside)
      K62-16 (ACCD) - K62-18 (E) LG - W-B Output ACC power supply Engine switch off → on (ACC) Below 1 V → 10 V or higher
      • Power source control

      • ACC Relay Monitor
      R8-17 (CLG1) - K62-18 (E) R - W-B Output

      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. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought inside detection area*)

      Pulse generation

      (See waveform 1)

      		 -

      Procedure:


      1. Engine switch off

      2. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought outside detection area*)

      Pulse generation

      (See waveform 2)

      		 -
      R8-17 (CLG1) - K62-18 (E) R - W-B Input

      Input to driver door lock sensor

      (front door outside handle assembly (for driver door) lock sensor on signal is sent to the certification ECU (smart key ECU assembly))

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought outside detection area*)

      5. Driver door lock sensor touched

      Pulse generation

      (See waveform 3)

      		 -
      R8-17 (CLG1) - K62-18 (E) R - W-B Input

      Input to driver door unlock sensor

      (when system is in unlock standby mode and unlock sensor is touched, door electrical key antenna sends unlock 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 near the vehicle

      5. Driver door unlock sensor touched

      Pulse generation

      (See waveform 4)

      		 -
      R8-16 (CG1B) - K62-18 (E) GR - W-B Output Output to driver door electrical key antenna (terminal on opposite side of component from CLG1 output terminal)

      Procedure:


      1. Engine switch off

      2. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought inside detection area*)

      Pulse generation

      (See waveform 5)

      		 -

      Procedure:


      1. Engine switch off

      2. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought outside detection area*)

      Pulse generation

      (See waveform 6)

      		 -
      R8-15 (CLG2) - K62-18 (E) R - W-B Output

      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. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought inside detection area*)

      Pulse generation

      (See waveform 1)

      		 -

      Procedure:


      1. Engine switch off

      2. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought outside detection area*)

      Pulse generation

      (See waveform 2)

      		 -
      R8-15 (CLG2) - K62-18 (E) R - W-B Input

      Input to front passenger door lock sensor

      (front door outside handle assembly (for front passenger door) lock sensor on signal is sent to the certification ECU (smart key ECU assembly))

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought outside detection area*)

      5. Front passenger door lock sensor touched

      Pulse generation

      (See waveform 3)

      		 -
      R8-15 (CLG2) - K62-18 (E) R - W-B Input

      Input to front passenger door unlock sensor

      (when system is in unlock standby mode and unlock sensor is touched, door electrical key antenna sends unlock 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 near the vehicle

      5. Front passenger door unlock sensor touched

      Pulse generation

      (See waveform 4)

      		 -
      R8-14 (CG2B) - K62-18 (E) W - W-B Output Output to front passenger door electrical key antenna (terminal on opposite side of component from CLG2 output terminal)

      Procedure:


      1. Engine switch off

      2. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought inside detection area*)

      Pulse generation

      (See waveform 5)

      		 -

      Procedure:


      1. Engine switch off

      2. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

      Pulse generation

      (See waveform 6)

      		 -
      R8-11 (CLG7) - K62-18 (E) GR - W-B Output Output to No. 1 indoor electrical key antenna assembly (inside luggage compartment)

      Procedure:


      1. Door is closed

      2. Engine switch off

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. Driver door lock sensor touched

      Pulse generation

      (See waveform 7)

      		 -
      R8-10 (CG7B) - K62-18 (E) R - W-B Output Output to No. 1 indoor electrical key antenna assembly (inside luggage compartment) (terminal on opposite side of component from CLG7 output terminal)

      Procedure:


      1. Door is closed

      2. Engine switch off

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. Driver door lock sensor touched

      Pulse generation

      (See waveform 7)

      		 -
      R8-13 (CLG8) - K62-18 (E) G - W-B Output Output to electrical key antenna (outside luggage compartment)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Luggage electrical key switch off → on

      Pulse generation

      (See waveform 8)

      		 -
      R8-12 (CG8B) - K62-18 (E) L - W-B Output Output to electrical key antenna (outside luggage compartment) (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 off → on

      Pulse generation

      (See waveform 8)

      		 -
      R8-26 (TSW5) - K62-18 (E) LG - W-B Input Luggage electrical key switch signal input Luggage electrical key switch off → on

      Pulse generation

      (See waveform 9)
      • Entry&Start

      • Tr/B-Door Unlock SW
      R8-18 (RCO) - K62-18 (E) B - W-B Output

      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 detection area but kept inside wireless function operational area

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

      Pulse generation

      (See waveform 10)

      		 -
      R8-19 (RDAM) - K62-18 (E) G - W-B Input

      Door control receiver verifies data received from electrical key transmitter sub-assembly.

      Door control receiver sends data from electrical key transmitter sub-assembly to certification ECU (smart key ECU assembly) (Door control receiver 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 not inside vehicle

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

      5. Lock or unlock switch of electrical key transmitter sub-assembly not pressed → pressed

      Pulse generation

      (See waveform 11)

      		 -
      R8-20 (CSEL) - K62-18 (E) BE - W-B Output Communication channel switching circuit

      Procedure:


      1. Engine switch off

      2. All doors closed

      		 Below 1 V → Pulse generation -

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

        Click here

    5. B006YZ3N01

      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.

      Table 1. Waveform 1 (Reference)
      Item Content
      Tester Connection

      R8-17 (CLG1) - K62-18 (E)

      R8-15 (CLG2) - K62-18 (E)
      Tool Setting 5 V/DIV., 500 ms/DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought inside detection area*)

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

        Click here

    6. B0071UEN01

      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.

      Table 2. Waveform 2 (Reference)
      Item Content
      Tester Connection

      R8-17 (CLG1) - K62-18 (E)

      R8-15 (CLG2) - K62-18 (E)
      Tool Setting 5 V/DIV., 100 ms/DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought outside detection area*)

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

        Click here

    7. B007075C02
      *a Lock sensor not touched
      *b Lock sensor touched

      Using an oscilloscope, check waveform 3.

      Note:

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

      Table 3. Waveform 3 (Reference)
      Item Content
      Tester Connection

      R8-17 (CLG1) - K62-18 (E)

      R8-15 (CLG2) - K62-18 (E)
      Tool Setting 5 V/DIV., 40 ms/DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought outside detection area*)

      5. Lock sensor not touched → touched

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

        Click here

    8. B0070WKC02
      *a Unlock sensor not touched
      *b Unlock sensor touched

      Using an oscilloscope, check waveform 4.

      Note:

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

      Table 4. Waveform 4 (Reference)
      Item Content
      Tester Connection

      R8-17 (CLG1) - K62-18 (E)

      R8-15 (CLG2) - K62-18 (E)
      Tool Setting 5 V/DIV., 50 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 near the vehicle

      5. Unlock sensor not touched → touched
    9. B006XUEN01

      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.

      Table 5. Waveform 5 (Reference)
      Item Content
      Tester Connection

      R8-16 (CG1B) - K62-18 (E)

      R8-14 (CG2B) - K62-18 (E)
      Tool Setting 5 V/DIV., 500 ms/DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought inside detection area*)

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

        Click here

    10. B0071DEN01

      Using an oscilloscope, check waveform 6.

      Note:

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

      Table 6. Waveform 6 (Reference)
      Item Content
      Tester Connection

      R8-16 (CG1B) - K62-18 (E)

      R8-14 (CG2B) - K62-18 (E)
      Tool Setting 5 V/DIV., 100 ms/DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. All doors closed

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. All doors locked through wireless operation

        (electrical key transmitter sub-assembly brought outside detection area*)

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

        Click here

    11. B006X8FC06
      *a Driver door lock sensor not touched
      *b Driver door lock sensor touched

      Using an oscilloscope, check waveform 7.

      Note:

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

      Table 7. Waveform 7 (Reference)
      Item Content
      Tester Connection

      R8-11 (CLG7) - K62-18 (E)

      R8-10 (CG7B) - K62-18 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition

      Procedure:


      1. Door is closed

      2. Engine switch off

      3. Electrical key transmitter sub-assembly not inside vehicle

      4. Driver door lock sensor touched
    12. B006Z9ON01

      Using an oscilloscope, check waveform 8.

      Note:

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

      Table 8. Waveform 8 (Reference)
      Item Content
      Tester Connection

      R8-13 (CLG8) - K62-18 (E)

      R8-12 (CG8B) - K62-18 (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. Luggage electrical key switch off → on
    13. B006XZ6C09
      *a Checking for switch on signal at short intervals

      Using an oscilloscope, check waveform 9.

      Note:

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

      Table 9. Waveform 9 (Reference)
      Item Content
      Tester Connection R8-26 (TSW5) - K62-18 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Luggage electrical key switch off → on
    14. B006XT8C12
      *a Before lock or unlock switch of electrical key transmitter sub-assembly pressed
      *b After lock or unlock switch of electrical key transmitter sub-assembly pressed

      Using an oscilloscope, check waveform 10.

      Note:

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

      Table 10. Waveform 10 (Reference)
      Item Content
      Tester Connection R8-18 (RCO) - K62-18 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition

      Procedure:


      1. Engine switch off

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

      3. Lock or unlock switch of electrical key transmitter sub-assembly not pressed → pressed
    15. B00706BC12
      *a Before lock or unlock switch of electrical key transmitter sub-assembly pressed
      *b After lock or unlock switch of electrical key transmitter sub-assembly pressed

      Using an oscilloscope, check waveform 11.

      Note:

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

      Table 11. Waveform 11 (Reference)
      Item Content
      Tester Connection R8-19 (RDAM) - K62-18 (E)
      Tool Setting 5 V/DIV., 500 ms/DIV.
      Condition

      Procedure:


      1. Engine switch off

      2. All doors locked

      3. Electrical key transmitter sub-assembly not inside vehicle

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

      5. Lock or unlock switch of electrical key transmitter sub-assembly not pressed → pressed
  2. B0070ETC10
    *A for LHD *B for RHD

    CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


    1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

      Click here

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

      Tester Connection Wiring Color Input/Output Terminal Description Condition Specified Condition
      MB-11 (GND1) - Body ground - - Ground Always Below 1 Ω
      MB-31 (BECU) - Body ground - Input Battery power supply (for CPU) Always 11 to 14 V