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Home >> Lexus >> 2018 >> LS 500h AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 127 (Smart Access System (For Entry, W/O Front Lidar Sensor) - Diagnostics - Introduction) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function, without Front LiDAR Sensor) >> Terminals Of Ecu [10/2023 - ] >> Terminals Of Ecu [10/2023 - ]

Terminals Of Ecu [10/2023 - ]

WARNING: This page is about a different car, the 2024 Lexus LS 500h. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 
    GTY1237017Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A124 and G212 certification ECU (smart key ECU assembly) connectors.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Tester Connection Terminal Description Condition Specified Condition Related Data List Item
      G212-29 (E) - Body ground Ground Always Below 1 Ω -
      G212-6 (+B) - G212-29 (E) Power supply Ignition switch off 11 to 14 V -
      A124-22 (CUTB) - G212-29 (E) Dark current cut pin* Ignition switch off 11 to 14 V -
      1. *: In order to prevent the vehicle auxiliary 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 auxiliary 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 A124 and G212 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 Terminal Description Condition Specified Condition Related Data List Item
      A124-24 (IGPD) - G212-29 (E) IG power supply Ignition switch off → ON Below 1 V → 9 V or higher Power Source Control 
      1. IGP Relay Circuit (Outside) Monitor
      A124-11 (IGRD) - G212-29 (E) IG power supply Ignition switch off → ON Below 1 V → 9 V or higher Power Source Control 
      1. IGR Relay Circuit (Outside) Monitor
      G212-21 (ACCD) - G212-29 (E) ACC power supply Ignition switch off → ACC Below 1 V → 8.5 V or higher Power Source Control 
      1. ACC Relay Monitor
      G212-16 (CLG1) - G212-29 (E) 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. Ignition 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. Ignition 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)      		 -
      G212-16 (CLG1) - G212-29 (E) 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. Ignition 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)      		 Smart Access 
      1. Driver Side Lock Sensor
      G212-16 (CLG1) - G212-29 (E) 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. Ignition 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)      		 Smart Access 
      1. Driver Side Unlock Sensor
      G212-15 (CG1B) - G212-29 (E) Output to driver door electrical key antenna (terminal on opposite side of component from CLG1 output terminal) Procedure:
      1. Ignition 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. Ignition 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)      		 -
      G212-10 (CLG2) - G212-29 (E) 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. Ignition 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. Ignition 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)      		 -
      G212-10 (CLG2) - G212-29 (E) 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. Ignition 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)      		 Smart Access 
      1. Passenger Side Lock Sensor
      G212-10 (CLG2) - G212-29 (E) 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. Ignition 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)      		 Smart Access 
      1. Passenger Side Unlock Sensor
      G212-9 (CG2B) - G212-29 (E) Output to front passenger door electrical key antenna (terminal on opposite side of component from CLG2 output terminal) Procedure:
      1. Ignition 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. Ignition 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)      		 -
      L285-27 (CLG3) - G212-29 (E) Output to rear door electrical key antenna (for driver side)
      (request signal (challenge) is sent to door electrical key antenna from certification ECU (smart key ECU assembly) to form detection area)      		 Procedure:
      1. Ignition 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. Ignition 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)      		 -
      L285-27 (CLG3) - G212-29 (E) Input to rear door lock sensor (for driver side)
      (rear door outside handle assembly (for driver side) lock sensor on signal is sent to the certification ECU (smart key ECU assembly))      		 Procedure:
      1. Ignition 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. Rear door (for driver side) lock sensor touched
      		 Pulse generation
      (See waveform 3)      		 Smart Access 
      1. Rear Driver Side Lock Sensor
      L285-27 (CLG3) - G212-29 (E) Input to rear door unlock sensor (for driver side)
      (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. Ignition 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. Rear door (for driver side) unlock sensor touched
      		 Pulse generation
      (See waveform 4)      		 Smart Access 
      1. Rear Driver Side Unlock Sensor
      L285-26 (CG3B) - G212-29 (E) Output to rear door (for driver side) electrical key antenna (terminal on opposite side of component from CLG3 output terminal) Procedure:
      1. Ignition 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. Ignition 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)      		 -
      L285-14 (CLG4) - G212-29 (E) Output to rear door electrical key antenna (for front passenger side)
      (request signal (challenge) is sent to door electrical key antenna from certification ECU (smart key ECU assembly) to form detection area)      		 Procedure:
      1. Ignition 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. Ignition 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)      		 -
      L285-14 (CLG4) - G212-29 (E) Input to rear door lock sensor (for front passenger side)
      (rear door outside handle assembly (for front passenger side) lock sensor on signal is sent to the certification ECU (smart key ECU assembly))      		 Procedure:
      1. Ignition 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. Rear door (for front passenger side) lock sensor touched
      		 Pulse generation
      (See waveform 3)      		 Smart Access 
      1. Rear Passenger Side lock Sensor
      L285-14 (CLG4) - G212-29 (E) Input to rear door unlock sensor (for front passenger side)
      (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. Ignition 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. Rear door (for front passenger side) unlock sensor touched
      		 Pulse generation
      (See waveform 4)      		 Smart Access 
      1. Rear Passenger Side Unlock Sensor
      L285-13 (CG4B) - G212-29 (E) Output to rear door (for front passenger side) electrical key antenna (terminal on opposite side of component from CLG4 output terminal) Procedure:
      1. Ignition 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. Ignition 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)      		 -
      L285-10 (CLG7) -G212-29 (E) Output to No. 3 indoor electrical key antenna assembly (inside luggage compartment) Procedure:
      1. Ignition switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Within 30 seconds of closing any door
      		 Pulse generation
      (See waveform 12)      		 -
      L285-9 (CG7B) -G212-29 (E) Output to No. 3 indoor electrical key antenna assembly (inside luggage compartment) (terminal on opposite side of component from CLG7 output terminal) Procedure:
      1. Ignition switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Within 30 seconds of closing any door
      		 Pulse generation
      (See waveform 12)      		 -
      L285-4 (CLG8) - G212-29 (E) Output to electrical key antenna (outside luggage compartment) Procedure:
      1. Ignition 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 7)      		 -
      L285-3 (CG8B) - G212-29 (E) Output to electrical key antenna (outside luggage compartment) (terminal on opposite side of component from CLG8 output terminal) Procedure:
      1. Ignition 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)      		 -
      L285-16 (TSW5) - G212-29 (E) Luggage electrical key switch signal input Luggage electrical key switch off → on Pulse generation
      (See waveform 9)      		 Smart Access 
      1. Trunk Lid/Back Door Unlock Switch
      L285-21 (RCO) - G212-29 (E) Output to electrical key and tire pressure monitoring system receiver assembly
      (Power supply for electrical key and tire pressure monitoring system receiver assembly. Certification ECU (smart key ECU assembly) outputs 5 V when receiver starts operating.)      		 Procedure:
      1. Ignition 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)      		 -
      L285-11 (RDAM) - G212-29 (E) Electrical key and tire pressure monitoring system receiver assembly verifies data received from electrical key transmitter sub-assembly.
      Electrical key and tire pressure monitoring system receiver assembly sends data from electrical key transmitter sub-assembly to certification ECU (smart key ECU assembly) (Electrical key and tire pressure monitoring system receiver assembly intermittently grounds 12 V signal from certification ECU (smart key ECU assembly)).      		 Proceed:
      1. Ignition 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)      		 -
      L285-12 (CSEL) - G212-29 (E) Communication channel switching circuit Procedure:
      1. Ignition switch off
      2. All doors closed
      		 Below 1 V → Pulse generation -
      1. *: For details about the entry function detection area, refer to Operation Check.

        Refer to OPERATION CHECK [10/2023 - ] 

    5. 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.

      GTY1009052Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 1 (REFERENCE)

      Item Content
      Tester Connection G212-16 (CLG1) - G212-29 (E)
      G212-10 (CLG2) - G212-29 (E)
      L285-27 (CLG3) - G212-29 (E)
      L285-14 (CLG4) - G212-29 (E)
      Tool Setting 5 V/DIV., 500 ms./DIV.
      Condition Procedure:
      1. Ignition 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*)
      1. *: For details about the entry function detection area, refer to Operation Check.

        Refer to OPERATION CHECK [10/2023 - ] 

    6. 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.

      GTY1009615Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 2 (REFERENCE)

      Item Content
      Tester Connection G212-16 (CLG1) - G212-29 (E)
      G212-10 (CLG2) - G212-29 (E)
      L285-27 (CLG3) - G212-29 (E)
      L285-14 (CLG4) - G212-29 (E)
      Tool Setting 5 V/DIV., 500 ms./DIV.
      Condition Procedure:
      1. Ignition 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*)
      1. *: For details about the entry function detection area, refer to Operation Check.

        Refer to OPERATION CHECK [10/2023 - ] 

    7. 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.

      GTY1010165Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Lock sensor not touched
      *b Lock sensor touched
      WAVEFORM 3 (REFERENCE)

      Item Content
      Tester Connection G212-16 (CLG1) - G212-29 (E)
      Tool Setting 5 V/DIV., 100 ms./DIV.
      Condition Procedure:
      1. Ignition 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 not touched → touched
      Item Content
      Tester Connection G212-10 (CLG2) - G212-29 (E)
      Tool Setting 5 V/DIV., 100 ms./DIV.
      Condition Procedure:
      1. Ignition 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 not touched → touched
      Item Content
      Tester Connection L285-27 (CLG3) - G212-29 (E)
      Tool Setting 5 V/DIV., 100 ms./DIV.
      Condition Procedure:
      1. Ignition 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. Rear door (for driver side) lock sensor not touched → touched
      Item Content
      Tester Connection L285-14 (CLG4) - G212-29 (E)
      Tool Setting 5 V/DIV., 100 ms./DIV.
      Condition Procedure:
      1. Ignition 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. Rear door (for front passenger side) lock sensor not touched → touched
      1. *: For details about the entry function detection area, refer to Operation Check.

        Refer to OPERATION CHECK [10/2023 - ] 

    8. 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.

      GTY1009086Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Unlock sensor not touched
      *b Unlock sensor touched
      WAVEFORM 4 (REFERENCE)

      Item Content
      Tester Connection G212-16 (CLG1) - G212-29 (E)
      Tool Setting 5 V/DIV., 100 ms./DIV.
      Condition Procedure:
      1. Ignition 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 not touched → touched
      Item Content
      Tester Connection G212-10 (CLG2) - G212-29 (E)
      Tool Setting 5 V/DIV., 100 ms./DIV.
      Condition Procedure:
      1. Ignition 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 not touched → touched
      Item Content
      Tester Connection L285-27 (CLG3) - G212-29 (E)
      Tool Setting 5 V/DIV., 100 ms./DIV.
      Condition Procedure:
      1. Ignition 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. Rear door (for driver side) unlock sensor not touched → touched
      Item Content
      Tester Connection L285-14 (CLG4) - G212-29 (E)
      Tool Setting 5 V/DIV., 100 ms./DIV.
      Condition Procedure:
      1. Ignition 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. Rear door (for front passenger side) unlock sensor not touched → touched
    9. 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.

      GTY1010037Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 5 (REFERENCE)

      Item Content
      Tester Connection G212-15 (CG1B) - G212-29 (E)
      G212-9 (CG2B) - G212-29 (E)
      L285-26 (CG3B) - G212-29 (E)
      L285-13 (CG4B) - G212-29 (E)
      Tool Setting 5 V/DIV., 500 ms./DIV.
      Condition Procedure:
      1. Ignition 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*)
      1. *: For details about the entry function detection area, refer to Operation Check.

        Refer to OPERATION CHECK [10/2023 - ] 

    10. 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.

      GTY1009520Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 6 (REFERENCE)

      Item Content
      Tester Connection G212-15 (CG1B) - G212-29 (E)
      G212-9 (CG2B) - G212-29 (E)
      L285-26 (CG3B) - G212-29 (E)
      L285-13 (CG4B) - G212-29 (E)
      Tool Setting 5 V/DIV., 500 ms./DIV.
      Condition Procedure:
      1. Ignition 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*)
      1. *: For details about the entry function detection area, refer to Operation Check.

        Refer to OPERATION CHECK [10/2023 - ] 

    11. 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.

      GTY1009967Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 7 (REFERENCE)

      Item Content
      Tester Connection L285-4 (CLG8) - G212-29 (E)
      Tool Setting 5 V/DIV., 50 ms./DIV.
      Condition Procedure:
      1. Ignition switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Luggage Electrical Key Switch off → on
    12. 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.

      GTY1009226Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 8 (REFERENCE)

      Item Content
      Tester Connection L285-3 (CG8B) - G212-29 (E)
      Tool Setting 5 V/DIV., 50 ms./DIV.
      Condition Procedure:
      1. Ignition switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Luggage electrical key switch → on
    13. 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.

      GTY1006310Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Checking for switch on signal at short intervals
      *b Before luggage electrical key switch pressed
      *c After luggage electrical key switch pressed
      WAVEFORM 9 (REFERENCE)

      Item Content
      Tester Connection L285-16 (TSW5) - G212-29 (E)
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition Luggage electrical key switch off → on
    14. 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.

      GTY376258Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *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 10 (REFERENCE)

      Item Content
      Tester Connection L285-21 (RCO) - G212-29 (E)
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition Procedure:
      1. Ignition 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. 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.

      GTY367752Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *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 11 (REFERENCE)

      Item Content
      Tester Connection L285-11 (RDAM) - G212-29 (E)
      Tool Setting 5 V/DIV., 500 ms./DIV.
      Condition Procedure:
      1. Ignition 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
    16. Using an oscilloscope, check waveform 12.
      NOTE:

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

      GTY1145167Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 12 (REFERENCE)

      Item Content
      Tester Connection L285-10 (CLG7) - G212-29 (E)
      L285-9 (CG7B) - G212-29 (E)
      Tool Setting 5 V/DIV., 500 ms./DIV.
      Condition Procedure:
      1. Ignition switch off
      2. All doors is closed
      3. Electrical key transmitter sub-assembly not inside vehicle
      4. Driver door lock sensor off → on
  2. CHECK POWER DISTRIBUTION BOX ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 
    GTY1236153Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *1 Power Distribution Box Assembly *2 Main Body ECU (Multiplex Network Body ECU)
    1. Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.

      Refer to REMOVAL [10/2023 - ]

    2. Measure the voltage and resistance according to the value(s) in the table below.
      Tester Connection Terminal Description Condition Specified Condition
      A-13 (GND1) - Body ground Ground Always Below 1 Ω
      A-26 (BECU) - Body ground Auxiliary battery power supply Ignition switch off 11 to 14 V
    3. Install the main body ECU (multiplex network body ECU) to the power distribution box assembly.

      Refer to INSTALLATION [10/2023 - ]

    4. Measure the voltage and check for pulses according to the value(s) in the table below.
      Tester Connection Input/Output Terminal Description Condition Specified Condition Related Data List Item
      8E-7 (BZR) - Body ground Output Wireless door lock buzzer output Active Test Wireless Buzzer on Pulse generation
      (frequency: 2 kHz, high voltage: 11 to 14 V, low voltage: below 1 V)      		 -
      Active Test Wireless Buzzer off Below 1 V
  3. SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function) 

    Refer to TERMINALS OF ECU [10/2023 - ]

  4. POWER DOOR LOCK CONTROL SYSTEM 

    Refer to TERMINALS OF ECU [10/2023 - ]

  5. WIRELESS DOOR LOCK CONTROL SYSTEM 

    Refer to TERMINALS OF ECU [10/2023 - ]

  6. POWER TRUNK LID SYSTEM 

    Refer to TERMINALS OF ECU [10/2023 - ]

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