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Terminals Of Ecu [11/2015 - 12/2018]

  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 
    GTY561751Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the F1 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
      F1-18 (E) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      F1-4 (+B) - F1-18 (E) Input GR - W-B Power supply Power switch off 11 to 14 V -
      F1-15 (CUTB) - F1-18 (E) Input W - W-B Dark current cut pin* Power 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 F1 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
      F1-17 (IG1D) - F1-18 (E) Output L - W-B IG power supply Power switch off → on (IG) Below 1 V → 10 V or higher -
      M59-17 (CLG1) - F1-18 (E) Output G - 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)
      M59-17 (CLG1) - F1-18 (E) Input G - 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 3)      		 D-Door Trigger Switch
      M59-17 (CLG1) - F1-18 (E) Input G - 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 4)      		 D-Door Touch Sensor
      M59-16 (CG1B) - F1-18 (E) Output R - 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 5)      		 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 6)
      M59-15 (CLG2) - F1-18 (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)
      M59-15 (CLG2) - F1-18 (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 3)      		 P-Door Trigger Switch
      M59-15 (CLG2) - F1-18 (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 4)      		 P-Door Touch Sensor
      M59-14 (CG2B) - F1-18 (E) Output R - W-B Output to front passenger door electrical key antenna (terminal on opposite side of component from CLG2 output terminal) Procedure:
      1. 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 5)      		 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 6)
      F1-8 (CLG5) - F1-18 (E) Output SB - 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
      		 Pulse generation
      (See waveform 7)      		 Overhead + Front Room (key diagnostic mode)
      F1-9 (CG5B) - F1-18 (E) Output GR - 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
      		 Pulse generation
      (See waveform 7)      		 Overhead + Front Room (key diagnostic mode)
      M59-5 (CLG6) - F1-18 (E) Output GR - 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
      		 Pulse generation
      (See waveform 7)      		 Overhead + Rear Room (key diagnostic mode)
      M59-6 (CG6B) - F1-18 (E) Output BR - 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
      		 Pulse generation
      (See waveform 7)      		 Overhead + Rear Room (key diagnostic mode)
      M59-11 (CLG7) - F1-18 (E) Output G - W-B Output to No. 3 indoor electrical key antenna assembly (inside luggage compartment) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Within 30 seconds of closing any door
      		 Pulse generation
      (See waveform 7)      		 Overhead + Back Door (inside) (key diagnostic mode)
      M59-10 (CG7B) - F1-18 (E) Output R - W-B Output to No. 3 indoor electrical key antenna assembly (inside luggage compartment) (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
      		 Pulse generation
      (See waveform 7)      		 Overhead + Back Door (inside) (key diagnostic mode)
      M59-13 (CLG8) - F1-18 (E) Output BE - 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 8)      		 Overhead + Back Door (key diagnostic mode)
      M59-12 (CG8B) - F1-18 (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 8)      		 Overhead + Back Door (key diagnostic mode)
      M59-26 (TSW5) - F1-18 (E) Input B - W-B Back door opener switch assembly (open switch) signal input Back door opener switch assembly (open switch) off → on Pulse generation
      (See waveform 9)      		 Tr/B-Door Unlock SW
      M59-27 (TSW6) - F1-18 (E) Input GR - W-B Back door opener switch assembly (lock switch) signal input Back door opener switch assembly (lock switch) off → on Pulse generation
      (See waveform 9)      		 Tr/B-Door Lock SW
      M59-18 (RCO) - F1-18 (E) Output G - W-B 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. 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 10)      		 -
      M59-19 (RDAM) - F1-18 (E) Input P - W-B 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. 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 11)      		 -
      M59-20 (CSEL) - F1-18 (E) Output V - W-B Communication channel switching circuit Procedure:
      1. Power switch off
      2. All doors closed
      		 Below 1 V → pulse generation -
      1. *1: For details about the entry function detection area, refer to Operation Check.

        Refer to OPERATION CHECK [11/2015 - ] 

    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.

      GTY448796Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 1 (REFERENCE)

      Item Content
      Tester Connection M59-17 (CLG1) - F1-18 (E)
      M59-15 (CLG2) - F1-18 (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 [11/2015 - ] 

    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.

      GTY427636Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 2 (REFERENCE)

      Item Content
      Tester Connection M59-17 (CLG1) - F1-18 (E)
      M59-15 (CLG2) - F1-18 (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 [11/2015 - ] 

    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.

      GTY430392Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Lock sensor not touched
      *b Lock sensor touched
      WAVEFORM 3 (REFERENCE)

      Item Content
      Tester Connection M59-17 (CLG1) - F1-18 (E)
      M59-15 (CLG2) - F1-18 (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 [11/2015 - ] 

    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.

      GTY438196Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Unlock sensor not touched
      *b Unlock sensor touched
      WAVEFORM 4 (REFERENCE)

      Item Content
      Tester Connection M59-17 (CLG1) - F1-18 (E)
      M59-15 (CLG2) - F1-18 (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
    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.

      GTY504760Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 5 (REFERENCE)

      Item Content
      Tester Connection M59-16 (CG1B) - F1-18 (E)
      M59-14 (CG2B) - F1-18 (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 [11/2015 - ] 

    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.

      GTY499393Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 6 (REFERENCE)

      Item Content
      Tester Connection M59-16 (CG1B) - F1-18 (E)
      M59-14 (CG2B) - F1-18 (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 [11/2015 - ] 

    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.

      GTY426276Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a For 30 seconds after any door closed
      *b After 30 seconds or more have elapsed since any door closed
      WAVEFORM 7 (REFERENCE)

      Item Content
      Tester Connection F1-8 (CLG5) - F1-18 (E)
      F1-9 (CG5B) - F1-18 (E)
      M59-5 (CLG6) - F1-18 (E)
      M59-6 (CG6B) - F1-18 (E)
      M59-11 (CLG7) - F1-18 (E)
      M59-10 (CG7B) - F1-18 (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
    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.

      GTY432845Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 8 (REFERENCE)

      Item Content
      Tester Connection M59-13 (CLG8) - F1-18 (E)
      M59-12 (CG8B) - F1-18 (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
    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.

      GTY379040Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Checking for switch on signal at short intervals
      WAVEFORM 9 (REFERENCE)

      Item Content
      Tester Connection M59-26 (TSW5) - F1-18 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Back door opener switch assembly (open switch) off → on
      WAVEFORM 9 (REFERENCE)

      Item Content
      Tester Connection M59-27 (TSW6) - F1-18 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Back door opener switch assembly (lock 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 M59-18 (RCO) - F1-18 (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
    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 M59-19 (RDAM) - F1-18 (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
  2. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 
    GTY545034Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

      Refer to REMOVAL [11/2015 - 12/2018]

    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
      MB-11 (GND1) - Body ground - - Ground Always Below 1 Ω -
      MB-31 (BECU) - Body ground Input - Auxiliary battery power supply (for CPU) Power switch off 11 to 14 V -
      F17-6 (FLCY) - Body ground Input BR - 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
      F17-27 (FRCY) - Body ground Input L - 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
      MB-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
      MB-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
    3. Install the main body ECU (multiplex network body ECU) to the instrument panel junction block assembly.

      Refer to INSTALLATION [11/2015 - ]

    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
      3D-13 (LSFL) - Body ground Input GR - Body ground Front door LH unlock detection switch input Front door LH locked → unlocked Pulse generation
      (See waveform 1)      		 FL Door Lock Pos
      3D-12 (LSFR) - Body ground Input V - Body ground Front door RH unlock detection switch input Front door RH locked → unlocked Pulse generation
      (See waveform 1)      		 FR Door Lock Pos
      3D-14 (LSR) - Body ground Input LG - Body ground Rear door LH/RH unlock detection switch input Rear door LH and RH locked → Rear door LH or RH unlocked Pulse generation
      (See waveform 1)      		 RL-Door Lock Pos SW or RR-Door Lock Pos SW
      F17-6 (FLCY) - Body ground Input BR - Body ground Front door LH courtesy light switch input Front door LH closed → open Pulse generation
      (See waveform 2)      		 FL Door Courtesy SW
      F17-27 (FRCY) - Body ground Input L - Body ground Front door RH courtesy light switch input Front door RH closed → open Pulse generation
      (See waveform 2)      		 FR Door Courtesy SW
      3H-24 (LCTY) - Body ground Input BR - Body ground Rear door LH courtesy light switch input Rear door LH closed → open Pulse generation
      (See waveform 2)      		 RL Door Courtesy SW
      3A-31 (RCTY) - Body ground Input GR - Body ground Rear door RH courtesy light switch input Rear door RH closed → open Pulse generation
      (See waveform 2)      		 RR Door Courtesy SW
      3F-29 (BZR) - Body ground Output R - 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 -
    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 3D-13 (LSFL) - Body ground
      3D-12 (LSFR) - Body ground
      3D-14 (LSR) - Body ground
      Tool Setting 2 V/DIV., 200 ms/DIV.
      Condition Door locked → unlocked
      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 F17-6 (FLCY) - Body ground
      F17-27 (FRCY) - Body ground
      3H-24 (LCTY) - Body ground
      3A-31 (RCTY) - Body ground
      Tool Setting 2 V/DIV., 200 ms/DIV.
      Condition Door closed → opened
      GTY443251Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Door closed
      *b Door open
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