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


  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    B000VQOE23

    1. Disconnect the P66 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
      P66-18 (E) - Body ground W-B - Body ground - Ground Always Below 1 Ω -
      P66-4 (+B) - P66-18 (E) W - W-B Input Power supply Always 11 to 14 V -
      P66-15 (CUTB) - P66-18 (E) P - 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 P66 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
      P66-17 (IG1D) - P66-18 (E) B - W-B Output IG1 signal Engine switch on (ACC) → on (IG) 1 V or less → 9 V or higher

        Power source control

      • IG Relay Monitor (Outside)
      P66-16 (ACCD) - P66-18 (E) SB - W-B Output ACC signal Engine switch off → on (ACC) 1 V or less → 8.5 V or higher

        Power source control

      • ACC Relay Monitor
      X23-17 (CLG1) - P66-18 (E) V - W-B Output

      Output to driver door electrical key antenna assembly

      (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)
      X23-16 (CG1B) - P66-18 (E) B - W-B Output Output to driver door electrical key antenna assembly (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 3)

      		 -

      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 4)
      X23-15 (CLG2) - P66-18 (E) GR - W-B Output

      Output to front passenger door electrical key antenna assembly

      (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)
      X23-14 (CG2B) - P66-18 (E) R - W-B Output Output to front passenger door electrical key antenna assembly (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 3)

      		 -

      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 4)
      X23-11 (CLG7) - P66-18 (E) P - W-B Output Output to No. 1 indoor electrical key antenna assembly (inside luggage compartment)

      Procedure:


      1. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. Driver door outside handle back end not pressed → pressed

      Pulse generation

      (See waveform 5)

      		 -
      X23-10 (CG7B) - P66-18 (E) W - 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. Engine switch off

      2. Electrical key transmitter sub-assembly not inside vehicle

      3. Driver door outside handle back end not pressed → pressed

      Pulse generation

      (See waveform 5)

      		 -
      X23-13 (CLG8) - P66-18 (E) LG - 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 6)

      		 -
      X23-12 (CG8B) - P66-18 (E) G - 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 6)

      		 -
      X23-26 (TSW5) - P66-18 (E) G - W-B Input Luggage electrical key switch signal input Luggage electrical key switch off → on

      Pulse generation

      (See waveform 7)

        Entry&Start

      • Tr/B-Door Unlock SW
      X23-18 (RCO) - P66-18 (E) G - 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 8)

      		 -
      X23-19 (RDAM) - P66-18 (E) BE - 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 9)

      		 -
      X23-20 (CSEL) - P66-18 (E) P - 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. Using an oscilloscope, check waveform of the ECU.

      Note

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


      1. B000VV5N01

        Waveform 1

        Item Content
        Tester Connection

        X23-17 (CLG1) - P66-18 (E)

        X23-15 (CLG2) - P66-18 (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

      2. B000WR6N01

        Waveform 2

        Item Content
        Tester Connection

        X23-17 (CLG1) - P66-18 (E)

        X23-15 (CLG2) - P66-18 (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

      3. B000XLMN01

        Waveform 3

        Item Content
        Tester Connection

        X23-16 (CG1B) - P66-18 (E)

        X23-14 (CG2B) - P66-18 (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

      4. B000VGYN01

        Waveform 4

        Item Content
        Tester Connection

        X23-16 (CG1B) - P66-18 (E)

        X23-14 (CG2B) - P66-18 (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

      5. B000XC5C05
        *a Driver door outside handle back end not pressed
        *b Driver door outside handle back end pressed

        Waveform 5

        Item Content
        Tester Connection

        X23-11 (CLG7) - P66-18 (E)

        X23-10 (CG7B) - P66-18 (E)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition

        Procedure:


        1. Engine switch off

        2. Electrical key transmitter sub-assembly not inside vehicle

        3. Driver door outside handle back end not pressed → pressed
      6. B000TWON01

        Waveform 6

        Item Content
        Tester Connection

        X23-13 (CLG8) - P66-18 (E)

        X23-12 (CG8B) - P66-18 (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
      7. B000VREC09
        *a Checking for switch ON signal at short intervals

        Waveform 7

        Item Content
        Tester Connection X23-26 (TSW5) - P66-18 (E)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Luggage electrical key switch off → on
      8. B000XU4C12
        *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

        Waveform 8

        Item Content
        Tester Connection X23-18 (RCO) - P66-18 (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
      9. B000X61C12
        *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

        Waveform 9

        Waveform 9 (Reference)
        Item Content
        Tester Connection X23-19 (RDAM) - P66-18 (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. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    B000YCPC14
    *1 Main Body ECU (Multiplex Network Body ECU) - -

    1. Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly.

      Click here

    2. Connect the driver side junction block assembly connectors.

    3. 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
      A-11 (GND1) - Body ground None - Body ground - Ground Always Below 1 Ω -
      A-31 (BECU) - Body ground None - Body ground Input Battery power supply (for CPU) Always 11 to 14 V -

  3. CHECK FRONT MULTIPLEX NETWORK DOOR ECU LH

    B000U5JN07

    1. Disconnect the S9 front multiplex network door ECU LH connector.

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

      Terminal No. (Symbol) Wiring Color Input/Output Terminal Description Condition Specified Condition Related Data List Item
      S9-1 (GND) - Body ground W-B - Body ground - Body ground Always Below 1 Ω -
      S9-4 (CPUB) - Body ground LA-LG - Body ground Input Battery power supply Always 11 to 14 V -
      S9-6 (BDR) - Body ground R - Body ground Input Battery power supply Always 11 to 14 V -

    3. Reconnect the S9 front multiplex network door ECU LH connector.

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

      Terminal No. (Symbol) Wiring Color Input/Output Terminal Description Condition Specified Condition Related Data List Item
      S8-10 (PS1G) - Body ground G - Body ground - Door outside handle sub-assembly LH (detection switch) ground Always Below 1 Ω -
      S8-13 (LSW) - S8-10 (PS1G) BE - G Input Door outside handle sub-assembly LH (lock request detection switch) input signal Door outside handle sub-assembly LH depression pressed (lock request detection switch ON) Below 1 V Smart Lock Switch
      Door outside handle sub-assembly LH not operated (lock request detection switch OFF) 11 to 14 V
      S8-14 (USW) - S8-10 (PS1G) SB - G Input Door outside handle sub-assembly LH (unlock request detection switch) input signal Door outside handle sub-assembly LH back end pressed (unlock request detection switch ON) Below 1 V Smart Unlock Switch
      Door outside handle sub-assembly LH not operated (unlock request detection switch OFF) 11 to 14 V

  4. CHECK FRONT MULTIPLEX NETWORK DOOR ECU RH

    B000U5JN08

    1. Disconnect the R9 front multiplex network door ECU RH connector.

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

      Terminal No. (Symbol) Wiring Color Input/Output Terminal Description Condition Specified Condition Related Data List Item
      R9-1 (GND) - Body ground W-B - Body ground - Body ground Always Below 1 Ω -
      R9-4 (CPUB) - Body ground LA-LG - Body ground Input Battery power supply Always 11 to 14 V -
      R9-6 (BDR) - Body ground R - Body ground Input Battery power supply Always 11 to 14 V -

    3. Reconnect the R9 front multiplex network door ECU RH connector.

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

      Terminal No. (Symbol) Wiring Color Input/Output Terminal Description Condition Specified Condition Related Data List Item
      R8-10 (PS1G) - Body ground G - Body ground - Door outside handle sub-assembly RH (detection switch) ground Always Below 1 Ω -
      R8-13 (LSW) - R8-10 (PS1G) BE - G Input Door outside handle sub-assembly RH (lock request detection switch) input signal Door outside handle sub-assembly RH depression pressed (lock request detection switch ON) Below 1 V Smart Lock Switch
      Door outside handle sub-assembly RH not operated (lock request detection switch OFF) 11 to 14 V
      R8-14 (USW) - R8-10 (PS1G) SB - G Input Door outside handle sub-assembly RH (unlock request detection switch) input signal Door outside handle sub-assembly RH back end pressed (unlock request detection switch ON) Below 1 V Smart Unlock Switch
      Door outside handle sub-assembly RH not operated (unlock request detection switch OFF) 11 to 14 V