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Terminals Of Ecu [10/2014 - ]

  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 
    Fig 1: Certification ECU (Smart Key ECU Assembly) Connector Terminal Identification
    GTY499931Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the I53 certification ECU (smart key ECU assembly) connector.
    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
      I53-11 (E) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      I53-10 (+B) - I53-11 (E) Input W - W-B Power supply Power switch off 11 to 14 V -
    3. Reconnect the I53 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 Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      I51-3 (IG1D) - I53-11 (E) Output W - W-B IG power supply Power switch off → on (IG) Below 1 V → 11 to 14 V -
      I53-4 (CLG1) - I53-11 (E) Output R - W-B 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. Power 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)

      		 Pulse generation
      (See waveform 1)      		 Overhead + Driver Side (key diagnostic mode)
      Procedure:
      1. Power 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)

      		 Pulse generation
      (See waveform 2)
      I53-4 (CLG1) - I53-11 (E) Input R - W-B 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. Power 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*1)

      5. Driver door lock sensor touched
      		 Pulse generation
      (See waveform 10)      		 D-Door Trigger Switch
      I53-4 (CLG1) - I53-11 (E) Input R - W-B 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. Power 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 11)      		 D-Door Touch Sensor
      I53-3 (CG1B) - I53-11 (E) Output W - W-B Output to driver door electrical key antenna (terminal on opposite side of component from CLG1 output terminal) Procedure:
      1. Power 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)

      		 Pulse generation
      (See waveform 3)      		 Overhead + Driver Side (key diagnostic mode)
      Procedure:
      1. Power 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)

      		 Pulse generation
      (See waveform 4)
      I53-2 (CLG2) - I53-11 (E) Output G - W-B 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. Power 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)

      		 Pulse generation
      (See waveform 1)      		 Overhead + Passenger Side (key diagnostic mode)
      Procedure:
      1. Power 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)

      		 Pulse generation
      (See waveform 2)
      I53-2 (CLG2) - I53-11 (E) Input G - W-B 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. Power 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*1)

      5. Front passenger door lock sensor touched
      		 Pulse generation
      (See waveform 10)      		 P-Door Trigger Switch
      I53-2 (CLG2) - I53-11 (E) Input G - W-B 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. Power 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 11)      		 P-Door Touch Sensor
      I53-1 (CG2B) - I53-11 (E) Output W - W-B Output to front passenger door electrical key antenna (terminal on opposite side of component from CLG2 output terminal) Procedure:
      1. Power 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)

      		 Pulse generation
      (See waveform 3)      		 Overhead + Passenger Side (key diagnostic mode)
      Procedure:
      1. Power 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)

      		 Pulse generation
      (See waveform 4)
      I52-8 (CLG3) - I53-11 (E) Output W - W-B 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. Power 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)

      		 Pulse generation
      (See waveform 1)      		 Overhead + Driver Side Rear (key diagnostic mode)
      Procedure:
      1. Power 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)

      		 Pulse generation
      (See waveform 2)
      I52-8 (CLG3) - I53-11 (E) Input W - W-B 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. Power 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*1)

      5. Rear door (for driver side) lock sensor touched
      		 Pulse generation
      (See waveform 10)      		 Dr-Door Trigger Switch
      I52-8 (CLG3) - I53-11 (E) Input W - W-B 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. Power 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 11)      		 Dr-Door Touch Sensor
      I52-7 (CG3B) - I53-11 (E) Output V - W-B Output to rear door (for driver side) electrical key antenna (terminal on opposite side of component from CLG3 output terminal) Procedure:
      1. Power 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)

      		 Pulse generation
      (See waveform 3)      		 Overhead + Driver Side Rear (key diagnostic mode)
      Procedure:
      1. Power 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)

      		 Pulse generation
      (See waveform 4)
      I52-10 (CLG4) - I53-11 (E) Output W - W-B 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. Power 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)

      		 Pulse generation
      (See waveform 1)      		 Overhead + Passenger Side Rear (key diagnostic mode)
      Procedure:
      1. Power 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)

      		 Pulse generation
      (See waveform 2)
      I52-10 (CLG4) - I53-11 (E) Input W - W-B 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. Power 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*1)

      5. Rear door (for front passenger side) lock sensor touched
      		 Pulse generation
      (See waveform 10)      		 Pr-Door Trigger Switch
      I52-10 (CLG4) - I53-11 (E) Input W - W-B 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. Power 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 11)      		 Pr-Door Touch Sensor
      I52-9 (CG4B) - I53-11 (E) Output L - W-B Output to rear door (for front passenger side) electrical key antenna (terminal on opposite side of component from CLG4 output terminal) Procedure:
      1. Power 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)

      		 Pulse generation
      (See waveform 3)      		 Overhead + Passenger Side Rear (key diagnostic mode)
      Procedure:
      1. Power 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)

      		 Pulse generation
      (See waveform 4)
      I53-21 (CLG5) - I53-11 (E) Output R - W-B Output to No. 1 indoor electrical key antenna assembly (front floor) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Within 30 seconds of closing any door using the door outside handle
      		 Pulse generation
      (See waveform 5)      		 Overhead + Front Room (key diagnostic mode)
      I53-20 (CG5B) - I53-11 (E) Output G - 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. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Within 30 seconds of closing any door using the door outside handle
      		 Pulse generation
      (See waveform 5)      		 Overhead + Front Room (key diagnostic mode)
      I52-5 (TSW5) - I53-11 (E) Input Y - W-B Back door opener switch assembly (open switch) signal input Back door opener switch assembly (open switch) off → on Pulse generation
      (See waveform 7)      		 Tr/B-Door Unlock SW
      I52-13 (TSW6) - I53-11 (E) Input L - W-B Back door opener switch assembly (lock switch) signal input Back door opener switch assembly (lock switch) off → on Pulse generation
      (See waveform 7)      		 Tr/B-Door Lock SW
      I52-15 (CLG6) - I53-11 (E) Output W - W-B Output to No. 2 indoor electrical key antenna assembly (rear floor) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Within 30 seconds of closing any door using the door outside handle
      		 Pulse generation
      (See waveform 5)      		 Overhead + Rear Room (key diagnostic mode)
      I52-14 (CG6B) - I53-11 (E) Output B - W-B Output to No. 2 indoor electrical key antenna assembly (rear floor) (terminal on opposite side of component from CLG6 output terminal) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Within 30 seconds of closing any door using the door outside handle
      		 Pulse generation
      (See waveform 5)      		 Overhead + Rear Room (key diagnostic mode)
      I52-4 (CLG7) - I53-11 (E) Output W - W-B Output to No. 3 indoor electrical key antenna assembly (inside luggage) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Within 30 seconds of closing any door using the door outside handle
      		 Pulse generation
      (See waveform 5)      		 Overhead + Back Door (inside) (key diagnostic mode)
      I52-3 (CG7B) - I53-11 (E) Output LG - W-B Output to No. 3 indoor electrical key antenna assembly (inside luggage) (terminal on opposite side of component from CLG7 output terminal) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Within 30 seconds of closing any door using the door outside handle
      		 Pulse generation
      (See waveform 5)      		 Overhead + Back Door (inside) (key diagnostic mode)
      I52-18 (RCO) - I53-11 (E) Output R - W-B 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. Power 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)      		 -
      I52-19 (CSEL) - I53-11 (E) Output B - W-B Communication channel switching circuit Procedure:
      1. Power switch off
      2. All doors closed
      		 Below 1 V → pulse generation -
      I52-20 (RDAM) - I53-11 (E) Input L - W-B 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. Power 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)      		 -
      I52-21 (ASEL) - I53-11 (E)*2 Output LG - W-B Output to wireless charger system Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly inside vehicle
      3. Power switch off → on (ACC)
      		 Below 1 V → 4.5 to 6 V
      (For 1 second after power switch on (ACC))      		 -
      I52-2 (CLG8) - I53-11 (E) Output B - W-B Output to electrical key antenna (outside luggage compartment) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Back door opener switch assembly off → on
      		 Pulse generation
      (See waveform 6)      		 Overhead + Back Door (key diagnostic mode)
      I52-1 (CG8B) - I53-11 (E) Output W - W-B Output to electrical key antenna (outside luggage compartment) (terminal on opposite side of component from CLG8 output terminal) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Back door opener switch assembly off → on
      		 Pulse generation
      (See waveform 6)      		 Overhead + Back Door (key diagnostic mode)
      1. *1: For details about the entry function detection area, refer to Operation Check.

        Refer to OPERATION CHECK [10/2014 - 09/2017] , or refer to OPERATION CHECK [09/2017 - ] 

      2. *2: w/ Wireless Charging System
    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.

      Fig 2: Waveform 1
      GTY448796Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 1 (REFERENCE)

      Item Content
      Tester Connection I53-4 (CLG1) - I53-11 (E)
      I53-2 (CLG2) - I53-11 (E)
      I52-8 (CLG3) - I53-11 (E)
      I52-10 (CLG4) - I53-11 (E)
      Tool Setting 5 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power 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 [10/2014 - 09/2017] , or refer to OPERATION CHECK [09/2017 - ] 

    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.

      Fig 3: Waveform 2
      GTY427636Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 2 (REFERENCE)

      Item Content
      Tester Connection I53-4 (CLG1) - I53-11 (E)
      I53-2 (CLG2) - I53-11 (E)
      I52-8 (CLG3) - I53-11 (E)
      I52-10 (CLG4) - I53-11 (E)
      Tool Setting 5 V/DIV., 100 ms/DIV.
      Condition Procedure:
      1. Power 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 [10/2014 - 09/2017] , or refer to OPERATION CHECK [09/2017 - ] 

    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.

      Fig 4: Waveform 3
      GTY504760Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 3 (REFERENCE)

      Item Content
      Tester Connection I53-3 (CG1B) - I53-11 (E)
      I53-1 (CG2B) - I53-11 (E)
      I52-7 (CG3B) - I53-11 (E)
      I52-9 (CG4B) - I53-11 (E)
      Tool Setting 5 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power 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 [10/2014 - 09/2017] , or refer to OPERATION CHECK [09/2017 - ] 

    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.

      Fig 5: Waveform 4
      GTY499393Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 4 (REFERENCE)

      Item Content
      Tester Connection I53-3 (CG1B) - I53-11 (E)
      I53-1 (CG2B) - I53-11 (E)
      I52-7 (CG3B) - I53-11 (E)
      I52-9 (CG4B) - I53-11 (E)
      Tool Setting 5 V/DIV., 100 ms/DIV.
      Condition Procedure:
      1. Power 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 [10/2014 - 09/2017] , or refer to OPERATION CHECK [09/2017 - ] 

    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.

      Fig 6: Waveform 5
      GTY426276Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a For 30 seconds after closing any door using the door outside handle
      *b 30 seconds or more have elapsed after closing any door using the door outside handle
      WAVEFORM 5 (REFERENCE)

      Item Content
      Tester Connection I53-21 (CLG5) - I53-11 (E)
      I53-20 (CG5B) - I53-11 (E)
      I52-15 (CLG6) - I53-11 (E)
      I52-14 (CG6B) - I53-11 (E)
      I52-4 (CLG7) - I53-11 (E)
      I52-3 (CG7B) - I53-11 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Within 30 seconds of closing any door using the door outside handle
    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.

      Fig 7: Waveform 6
      GTY432845Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 6 (REFERENCE)

      Item Content
      Tester Connection I52-2 (CLG8) - I53-11 (E)
      I52-1 (CG8B) - I53-11 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Back door opener switch assembly off → on
    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.

      Fig 8: Waveform 7
      GTY379040Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Checking for switch on signal at short intervals
      WAVEFORM 7 (REFERENCE)

      Item Content
      Tester Connection I52-5 (TSW5) - I53-11 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Back door opener switch assembly (open switch) off → on
      WAVEFORM 7 (REFERENCE)

      Item Content
      Tester Connection I52-13 (TSW6) - I53-11 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Back door opener switch assembly (lock 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.

      Fig 9: Waveform 8
      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 8 (REFERENCE)

      Item Content
      Tester Connection I52-18 (RCO) - I53-11 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power 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
    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.

      Fig 10: Waveform 9
      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 9 (REFERENCE)

      Item Content
      Tester Connection I52-20 (RDAM) - I53-11 (E)
      Tool Setting 5 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power 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
    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.

      Fig 11: Waveform 10
      GTY430392Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Lock sensor not touched
      *b Lock sensor touched
      WAVEFORM 10 (REFERENCE)

      Item Content
      Tester Connection I53-4 (CLG1) - I53-11 (E)
      I53-2 (CLG2) - I53-11 (E)
      I52-8 (CLG3) - I53-11 (E)
      I52-10 (CLG4) - I53-11 (E)
      Tool Setting 5 V/DIV., 40 ms/DIV.
      Condition Procedure:
      1. Power 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
      1. *: For details about the entry function detection area, refer to Operation Check.

        Refer to OPERATION CHECK [10/2014 - 09/2017] , or refer to OPERATION CHECK [09/2017 - ] 

    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.

      Fig 12: Waveform 11
      GTY438196Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Unlock sensor not touched
      *b Unlock sensor touched
      WAVEFORM 11 (REFERENCE)

      Item Content
      Tester Connection I53-4 (CLG1) - I53-11 (E)
      I53-2 (CLG2) - I53-11 (E)
      I52-8 (CLG3) - I53-11 (E)
      I52-10 (CLG4) - I53-11 (E)
      Tool Setting 5 V/DIV., 50 ms/DIV.
      Condition Procedure:
      1. Power 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
  2. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 
    Fig 13: Instrument Panel Junction Block Assembly And Main Body ECU Connector End View
    GTY500852Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *1 Main Body ECU (Multiplex Network Body ECU) - -
    1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

      Refer to REMOVAL [10/2014 - 05/2019] , or refer to REMOVAL [05/2019 - ]

    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
      A-11 (GND1) - Body ground - - Ground Always Below 1 Ω -
      A-31 (BECU) - Body ground Input - Battery power supply (for CPU) Power switch off 11 to 14 V -
      I48-6 (FLCY) - Body ground Input G - Body ground Front door LH courtesy light switch input Front door LH closed → open 10 kΩ or higher → Below 1 Ω FL Door Courtesy SW
      I48-27 (FRCY) - Body ground Input W - Body ground Front door RH courtesy light switch input Front door RH closed → open 10 kΩ or higher → Below 1 Ω FR Door Courtesy SW
      A-13 (LCTY) - Body ground Input - Rear door LH courtesy light switch input Rear door LH closed → open 10 kΩ or higher → Below 1 Ω RL Door Courtesy SW
      A-2 (RCTY) - Body ground Input - Rear door RH courtesy light switch input Rear door RH closed → open 10 kΩ or higher → Below 1 Ω RR Door Courtesy SW
      A-4 (BCTY) - Body ground Input - Back door courtesy light switch input Back door closed → open 10 kΩ or higher → Below 1 Ω Back Door Courtesy SW
    3. Install the main body ECU (multiplex network body ECU) to the instrument panel junction block assembly.

      Refer to INSTALLATION [10/2014 - 05/2019] , or refer to INSTALLATION [05/2019 - ]

    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
      4D-40 (LSFL) - Body ground Input B - Body ground Front door LH unlock detection switch input Front door LH locked → unlocked Pulse generation
      (See waveform 1)      		 FL Door Lock Pos
      4D-39 (LSFR) - Body ground Input P - Body ground Front door RH unlock detection switch input Front door RH locked → unlocked Pulse generation
      (See waveform 1)      		 FR Door Lock Pos
      4A-34 (LSWL) - Body ground Input Y - Body ground Rear door LH unlock detection switch input Rear door LH locked → unlocked Pulse generation
      (See waveform 1)      		 RL-Door Lock Pos SW
      I47-2 (LSWR) - Body ground Input Y - Body ground Rear door RH unlock detection switch input Rear door RH locked → unlocked Pulse generation
      (See waveform 1)      		 RR-Door Lock Pos SW
      I48-6 (FLCY) - Body ground Input G - Body ground Front door LH courtesy light switch input Front door LH closed → open Pulse generation
      (See waveform 2)      		 FL Door Courtesy SW
      I48-27 (FRCY) - Body ground Input W - Body ground Front door RH courtesy light switch input Front door RH closed → open Pulse generation
      (See waveform 2)      		 FR Door Courtesy SW
      4A-18 (LCTY) - Body ground Input W - Body ground Rear door LH courtesy light switch input Rear door LH closed → open Pulse generation
      (See waveform 2)      		 RL Door Courtesy SW
      4D-37 (RCTY) - Body ground Input Y - Body ground Rear door RH courtesy light switch input Rear door RH closed → open Pulse generation
      (See waveform 2)      		 RR Door Courtesy SW
      4A-21 (BCTY) - Body ground Input LG - Body ground*1
      R - Body ground*2      		 Back door courtesy light switch input Back door closed → opened Pulse generation
      (See waveform 2)      		 Back Door Courtesy SW
      4B-52 (BZR) - Body ground Output P - Body ground Wireless buzzer signal output Procedure:
      1. Power switch off
      2. All doors closed
      3. Lock switch of electrical key transmitter sub-assembly not pressed → pressed
      		 Below 1 V → pulse generation -

      () *1: w/ Power Seat*2: w/o Power Seat

    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.

      WAVEFORM 1 (REFERENCE)

      Item Content
      Tester Connection 4D-40 (LSFL) - Body ground
      4D-39 (LSFR) - Body ground
      4A-34 (LSWL) - Body ground
      I47-2 (LSWR) - Body ground
      Tool Setting 2 V/DIV., 200 ms/DIV.
      Condition Door locked → unlocked
      Fig 14: Waveform 1
      GTY443250Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Door locked
      *b Door unlocked
    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.

      WAVEFORM 2 (REFERENCE)

      Item Content
      Tester Connection I48-6 (FLCY) - Body ground
      I48-27 (FRCY) - Body ground
      4A-18 (LCTY) - Body ground
      4D-37 (RCTY) - Body ground
      4A-21 (BCTY) - Body ground
      Tool Setting 2 V/DIV., 200 ms/DIV.
      Condition Door closed → opened
      Fig 15: Waveform 2
      GTY443251Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Door closed
      *b Door open
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