LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2016 >> GX 460 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Access System (Entry Function) (Diagnostics - Introduction) (2 Of 2) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function) >> Terminals Of Ecu [08/2015 - 08/2019] >> Terminals Of Ecu [08/2015 - 08/2019]
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Terminals Of Ecu [08/2015 - 08/2019]

  1. CHECK CERTIFICATION ECU 
    Fig 1: G26 And G27 ECU Connector End View
    GTY630972Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the G26 certification ECU connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbol) Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      G26-15 (E) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      G26-1 (+B) - G26-15 (E) Input V - W-B +B power supply Always 11 to 14 V -
      G26-17 (CUTB) - G26-15 (E) Input L - W-B Dark current cut pin* Always 11 to 14 V -
      1. *: In order to prevent the 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 set in the circuit. If the fuse is removed, the circuit becomes open. If the fuse that is between the battery and terminal CUTB is removed and the circuit is open, the certification ECU changes to a certain control mode (example: the transmission of electric waves every 250 ms. that form the detection area stops).

      If the result is not as specified, there may be a malfunction on the wire harness side or the fuse is removed.

    3. Reconnect the G26 certification ECU connector.
    4. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbol) Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      G26-16 (IG) - G26-15 (E) Input W - W-B IG power supply Engine switch off → on (IG) Below 1 V → 11 to 14 V Ignition Switch
      G26-3 (CLG1) - G26-15 (E) Output R - W-B Output to driver side electrical key antenna
      [request signal (challenge) is sent to door electrical key oscillator from certification ECU to form detection area]      		 Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Key not inside vehicle
      5. Key brought inside detection area*1
      6. All doors locked through wireless operation
      		 Pulse generation (See waveform 1) Overhead + Driver Side (key diagnostic mode)
      Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Key not inside vehicle
      5. Key brought outside detection area*2
      6. All doors locked through wireless operation
      		 Pulse generation (See waveform 2) Overhead + Driver Side (key diagnostic mode)
      G26-4 (CG1B) - G26-15 (E) Output G - W-B Output to driver side electrical key antenna (terminal on opposite side of component from CLG1 output terminal) Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Key not inside vehicle
      5. All doors locked with key
      		 Pulse generation (See waveform 2) Overhead + Driver Side (key diagnostic mode)
      G26-5 (CLG2) - G26-15 (E) Output B - W-B Output to front passenger side electrical key antenna Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Key not inside vehicle
      5. Key brought inside detection area*1
      6. All doors locked through wireless operation
      		 Pulse generation (See waveform 1) Overhead + Passenger Side (key diagnostic mode)
      Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Key not inside vehicle
      5. Key brought outside detection area*2
      6. All doors locked through wireless operation
      		 Pulse generation (See waveform 2) Overhead + Passenger Side (key diagnostic mode)
      G26-6 (CG2B) - G26-15 (E) Output W - W-B Output to front passenger side electrical key antenna (terminal on opposite side of component from CLG2 output terminal) Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Key not inside vehicle
      5. All doors locked with key
      		 Pulse generation (See waveform 2) Overhead + Passenger Side (key diagnostic mode)
      G26-7 (CLG5) - G26-15 (E) Output R - W-B Output to indoor No. 1 electrical key antenna assembly (front floor) Procedure:
      1. Engine switch off
      2. Door is open
      3. Door is closed
      4. 30 seconds elapse
      		 Pulse generation (See waveform 3) Overhead + Front Room (key diagnostic mode)
      G26-8 (CG5B) - G26-15 (E) Output W - W-B Output to indoor No. 1 electrical key antenna assembly (front floor) (terminal on opposite side of component from CLG5 output terminal) Procedure:
      1. Engine switch off
      2. Door is open
      3. Door is closed
      4. 30 seconds elapse
      		 Pulse generation (See waveform 3) Overhead + Front Room (key diagnostic mode)
      G26-18 (TSW1) - G26-15 (E) Input LG - W-B Driver side door lock sensor signal input
      (Sends signals from door lock switch in front door outside handle assembly to certification ECU. Certification ECU sends 12 V pulse waveform every 40 ms. from terminal TSW. When door lock switch is touched, the pulse is grounded.)      		 Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Driver side door lock sensor not touched → touched
      		 Pulse generation (See waveform 5) D-Door Trigger Switch
      G26-19 (TSW2) - G26-15 (E) Input V - W-B Front passenger side door lock sensor signal input
      (Sends signals from door lock switch in front door outside handle assembly to certification ECU. Certification ECU sends 12 V pulse waveform every 40 ms. from terminal TSW. When door lock switch is touched, the pulse is grounded.)      		 Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Front passenger side door lock sensor not touched → touched
      		 Pulse generation (See waveform 5) P-Door Trigger Switch
      G26-20 (SEN1) - G26-15 (E) Input W - W-B Driver side door unlock sensor signal input
      [when system is in unlock standby mode and touch sensor is touched, door electrical key oscillator sends touch sensor input signal (sensing) to certification ECU]      		 Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors locked
      4. Driver side door unlock sensor not touched → touched
      		 Pulse generation (See waveform 5) D-Door Touch Sensor
      G26-21 (SEN2) - G26-15 (E) Input L - W-B Front passenger side door unlock sensor signal input
      [when system is in unlock standby mode and touch sensor is touched, door electrical key oscillator sends touch sensor input signal (sensing) to certification ECU]      		 Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors locked
      4. Front passenger side door unlock sensor not touched → touched
      		 Pulse generation (See waveform 5) P-Door Touch Sensor
      G26-22 (TSW5) - Body ground Input G - Body ground Back door unlock switch signal input Back door electrical key switch (back door unlock switch) off → on Pulse generation (See waveform 5) Tr/B-Door Unlock SW
      G26-23 (TSW6) - Body ground Input L - Body ground Back door lock switch signal input Back door electrical key switch (back door lock switch) off → on Pulse generation (See waveform 5) Tr/B-Door Lock SW
      G26-24 (CLG6) - G26-15 (E) Output Y - W-B Output to indoor No. 2 electrical key antenna assembly (rear floor) Procedure:
      1. Engine switch off
      2. Door is open
      3. Door is closed
      4. 30 seconds elapse
      		 Pulse generation (See waveform 3) Overhead + Rear Room (key diagnostic mode)
      G26-25 (CG6B) - G26-15 (E) Output W - W-B Output to indoor No. 2 electrical key antenna assembly (rear floor) Proceed:
      1. Engine switch off
      2. Door is open
      3. Door is closed
      4. 30 seconds elapse
      		 Pulse generation (See waveform 3) Overhead + Rear Room (key diagnostic mode)
      G26-26 (CLG7) - G26-15 (E) Output LG - W-B Output to indoor No. 3 electrical key antenna assembly (inside luggage) Proceed:
      1. Engine switch off
      2. Door is open
      3. Door is closed
      4. 30 seconds elapse
      		 Pulse generation (See waveform 3) Overhead + Back Door (inside) (key diagnostic mode)
      G26-27 (CG7B) - G26-15 (E) Output L - W-B Output to indoor No. 3 electrical key antenna assembly (inside luggage) Proceed:
      1. Engine switch off
      2. Door is open
      3. Door is closed
      4. 30 seconds elapse
      		 Pulse generation (See waveform 3) Overhead + Back Door (inside) (key diagnostic mode)
      G26-32 (POS1) - G26-15 (E) Output R - W-B Driver side door unlock sensor power source (12 V (drops when engine switch turned on (IG))) Engine switch off → on (IG) 9 to 14 V → Below 2 V -
      G26-33 (POS2) - G26-15 (E) Output R - W-B Output to front passenger side door unlock sensor Engine switch off → on (IG) 9 to 14 V → Below 2 V -
      G27-5 (RCO) - G26-15 (E) Output L - W-B Output to door control receiver
      (Power supply for door control receiver. Certification ECU outputs 5 V when receiver starts operating.)      		 Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. Key brought away from vehicle until key LED stops blinking
      4. Lock or unlock button of key not pressed → pressed
      		 Pulse generation (See waveform 6) -
      G27-15 (RDA) - G26-15 (E) Input G - W-B Door control receiver verifies data received from key. Receiver sends data to ECU and intermittently grounds 12 V signal from certification ECU. Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors locked
      4. Key brought away from vehicle until key LED stops blinking
      5. Lock or unlock button of key not pressed → pressed
      		 Pulse generation (See waveform 7) -
      G27-16 (RSSI) - G26-15 (E) Input P - W-B Door control receiver sends signals to certification ECU indicating whether electric waves (example: 312 MHz) from key are being received or not (receiver grounds 12 V signal from certification ECU) Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors locked
      4. Key brought away from vehicle until key LED stops blinking
      5. Lock or unlock button of key not pressed → pressed
      		 Pulse generation (See waveform 8) -
      G27-19 (CLG8) - G26-15 (E) Output B - W-B Output to electrical key antenna (outside luggage) Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Back door electrical key switch unlock switch off → on
      		 Pulse generation (See waveform 4) Overhead + Back Door (key diagnostic mode)
      G27-20 (CG8B) - G26-15 (E) Output W - W-B Output to electrical key antenna (outside luggage) (terminal on opposite side of component from CLG8 output terminal) Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Back door electrical key switch unlock switch off → on
      		 Pulse generation (See waveform 4) Overhead + Back Door (key diagnostic mode)
      1. *1: For details about the areas that are inside the entry function detection area, refer to Operation Check (Refer to OPERATION CHECK [08/2015 - 08/2016] , or refer to OPERATION CHECK [08/2016 - 08/2019] ).
      2. *2: For details about the areas that are outside the entry function detection area, refer to Operation Check (Refer to OPERATION CHECK [08/2015 - 08/2016] , or refer to OPERATION CHECK [08/2016 - 08/2019] ).
    5. Using an oscilloscope, check waveform 1.

      HINT: 

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

      Fig 2: Waveform 1
      GTY613394Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 1 (REFERENCE)

      Item Content
      Terminal No. (Symbol)
      • G26-3 (CLG1) - G26-15 (E)
      • G26-5 (CLG2) - G26-15 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Key not inside vehicle
      5. Key brought inside detection area*
      6. All doors locked through wireless operation
      1. *: For details about the areas that are inside the entry function detection area, refer to Operation Check (Refer to OPERATION CHECK [08/2015 - 08/2016] , or refer to OPERATION CHECK [08/2016 - 08/2019] ).
    6. Using an oscilloscope, check waveform 2.

      HINT: 

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

      Fig 3: Waveform 2
      GTY653526Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 2 (REFERENCE)

      Item Content
      Terminal No. (Symbol)
      • G26-3 (CLG1) - G26-15 (E)
      • G26-5 (CLG2) - G26-15 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Key not inside vehicle
      5. Key brought outside detection area*
      6. All doors locked through wireless operation
      1. *: For details about the areas that are outside the entry function detection area, refer to Operation Check (Refer to OPERATION CHECK [08/2015 - 08/2016] , or refer to OPERATION CHECK [08/2016 - 08/2019] ).
      WAVEFORM 2 (REFERENCE)

      Item Content
      Terminal No. (Symbol)
      • G26-4 (CG1B) - G26-15 (E)
      • G26-6 (CG2B) - G26-15 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. All doors locked with key, Key not inside vehicle
    7. Using an oscilloscope, check waveform 3.

      HINT: 

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

      Fig 4: Waveform 4
      GTY618407Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Door is open then closed for 30 seconds
      *b Approximately 30 seconds from when the door is closed and after
      WAVEFORM 3 (REFERENCE)

      Item Content
      Terminal No. (Symbol)
      • G26-7 (CLG5) - G26-15 (E)
      • G26-8 (CG5B) - G26-15 (E)
      • G26-24 (CLG6) - G26-15 (E)
      • G26-25 (CG6B) - G26-15 (E)
      • G26-26 (CLG7) - G26-15 (E)
      • G26-27 (CG7B) - G26-15 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Engine switch off
      2. Door is open
      3. Door is closed
      4. 30 seconds elapse
    8. Using an oscilloscope, check waveform 4.

      HINT: 

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

      Fig 5: Waveform 4
      GTY618407Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Back door is open then closed for 30 seconds
      *b Approximately 30 seconds from when the back door is closed and after
      WAVEFORM 4 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G27-19 (CLG8) - G26-15 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV
      Condition Procedure:
      1. Engine switch off
      2. Back door is open
      3. Back door is closed
      4. 30 seconds elapse
      WAVEFORM 4 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G27-20 (CG8B) - G26-15 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Engine switch off
      2. Back door is open
      3. Back door is closed
      4. 30 seconds elapse
    9. Using an oscilloscope, check waveform 5.

      HINT: 

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

      Fig 6: Waveform 5
      GTY675695Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a In actuality, sampling is being performed
      WAVEFORM 5 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G26-18 (TSW1) - G26-15 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Driver side door lock sensor not touched → touched
      WAVEFORM 5 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G26-19 (TSW2) - G26-15 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors closed
      4. Front passenger side door lock sensor not touched → touched
      WAVEFORM 5 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G26-20 (SEN1) - G26-15 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV
      Condition Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors locked
      4. Driver side door unlock sensor not touched → touched
      WAVEFORM 5 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G26-21 (SEN2) - G26-15 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors locked
      4. Front passenger side door unlock sensor not touched → touched
      WAVEFORM 5 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G26-22 (TSW5) - Body ground
      Tool Setting 2 V/DIV., 500 ms/DIV
      Condition Back door electrical key switch (back door unlock switch) off → on
      WAVEFORM 5 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G26-23 (TSW6) - Body ground
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Back door electrical key switch (back door lock switch) off → on
    10. Using an oscilloscope, check waveform 6.

      HINT: 

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

      Fig 7: Waveform 6
      GTY666434Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Before lock or unlock button of key pressed
      *b After lock or unlock button of key pressed
      WAVEFORM 6 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G27-5 (RCO) - G26-15 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. Key brought away from vehicle until key LED stops blinking
      4. Lock or unlock button of key not pressed → pressed
    11. Using an oscilloscope, check waveform 7.

      HINT: 

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

      Fig 8: Waveform 7
      GTY685505Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Before lock or unlock button of key pressed
      *b After lock or unlock button of key pressed
      WAVEFORM 7 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G27-15 (RDA) - G26-15 (E)
      Tool Setting 5 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors locked
      4. Key brought away from vehicle until key LED stops blinking
      5. Lock or unlock button of key not pressed → pressed
    12. Using an oscilloscope, check waveform 8.

      HINT: 

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

      Fig 9: Identifying Waveform 7
      GTY389026Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Before lock or unlock button of key pressed
      *b After lock or unlock button of key pressed
      WAVEFORM 8 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G27-16 (RSSI) - G26-15 (E)
      Tool Setting 5 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Engine switch off
      2. Key brought outside vehicle
      3. All doors locked
      4. Key brought away from vehicle until key LED stops blinking
      5. Lock or unlock button of key not pressed → pressed
  2. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 
    Fig 10: Driver Side Junction Block Assembly And Main Body ECU Connector End View
    GTY683099Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the main body ECU (Refer to REMOVAL [08/2015 - 08/2019] ) from the driver side junction block assembly.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbol) Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      A-11 (GND1) - Body ground - None - Body ground Ground Always Below 1 Ω -
      G46-3 (GND2) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      A-30 (BECU) - Body ground Input None - Body ground Auxiliary battery power supply (for CPU) Always 11 to 14 V -
      A-31 (ALTB) - Body ground Input None - Body ground Auxiliary battery power supply (for indicator) Always 11 to 14 V -
      A-29 (ACC) - Body ground Input None - Body ground ACC power supply Engine switch on (ACC) 11 to 14 V ACC SW
      A-32 (IG) - Body ground Input None - Body ground Engine switch power supply Engine switch on (IG) 11 to 14 V IG SW

      If the result is not as specified, there may be a malfunction in the wire harness.

    3. Install the main body ECU (Refer to REMOVAL [08/2015 - 08/2019] ) to the driver side junction block assembly.
    4. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbol) Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      2H-27 (FLCY) - Body ground Input R - Body ground Front door LH courtesy light switch input Front door LH open Below 1 V FL Door Courtesy
      Front door LH closed 11 to 14 V
      2D-15 (FRCY) - Body ground Input B - Body ground Front door RH courtesy light switch input Front door RH open Below 1 V FR Door Courtesy
      Front door RH closed 11 to 14 V
      G48-3 (LCTY) - Body ground Input V - Body ground Rear door LH courtesy light switch input Rear door LH open Below 1 V RR Door Courtesy SW
      Rear door LH closed 11 to 14 V
      G47-6 (RCTY) - Body ground Input R - Body ground Rear door RH courtesy light switch input Rear door RH open Below 1 V RL Door Courtesy SW
      Rear door RH closed 11 to 14 V
      G47-9 (L1) - Body ground Input GR - Body ground Front passenger side door control switch lock input Door control switch on Below 1 V -
      Door control switch off Pulse generation (See waveform 1 or 2)
      G47-10 (UL1) - Body ground Input LG - Body ground Front passenger side door control switch unlock input Door control switch on Below 1 V -
      Door control switch off Pulse generation (See waveform 1 or 2)
      G47-19 (BCTY) - Body ground Input G - Body ground Back door courtesy light switch input Back door open Below 1 V -
      Engine switch off, all doors closed and back door closed Pulse generation (See waveform 1 or 2)
      G47-1 (GCTY) - Body ground Input V - Body ground Glass hatch courtesy switch input Glass hatch open Below 1 V -
      Engine switch off, all doors closed and glass hatch closed Pulse generation (See waveform 1 or 2)
      G46-17 (GOSW) - Body ground Input LG - Body ground Glass hatch opener switch input Glass hatch open Below 1 V -
      Engine switch off, all doors closed and glass hatch closed Pulse generation (See waveform 1 or 2)
      G47-11 (L2) - Body ground Input GR - Body ground Driver side door key-linked lock input Driver side door key cylinder in lock position Below 1 V -
      Engine switch off, all doors closed and driver side door key cylinder in neutral position Pulse generation (See waveform 3 or 4)
      G47-24 (UL3) - Body ground Input LG - Body ground Driver side door key-linked unlock input Driver side door key cylinder in unlock position Below 1 V -
      Engine switch off, all doors closed and driver side door key cylinder in neutral position Pulse generation (See waveform 1 or 2)
      2D-3 (ACT+) - Body ground Output L - Body ground Door lock motor lock drive output (except rear LH side) Driver side door control switch not pushed and driver side door key cylinder in neutral position Below 1 V -
      Lock side of driver side door control switch pushed or driver side door key cylinder in lock position 11 to 14 V
      2H-8 (ACT+) - Body ground Output L - Body ground Door lock motor lock drive output (for rear LH side) Driver side door control switch not pushed and driver side door key cylinder in neutral position Below 1 V -
      Lock side of driver side door control switch pushed or driver side door key cylinder in lock position 11 to 14 V
      2D-1 (ACTD) - Body ground Output G - Body ground Driver side door lock motor unlock drive output Driver side door control switch not pushed and driver side door key cylinder in neutral position Below 1 V -
      Unlock side of driver side door control switch pushed or driver side door key cylinder in unlock position 11 to 14 V
      2D-2 (ACT-) - Body ground Output W - Body ground Door lock motor unlock drive output (for front RH, rear RH and back door side) Driver side door control switch not pushed and driver side door key cylinder in neutral position Below 1 V -
      Unlock side of driver side door control switch pushed or driver side door key cylinder in unlock position 11 to 14 V
      2H-10 (ACT-) - Body ground Output W - Body ground Door lock motor unlock drive output (for rear LH side) Driver side door control switch not pushed and driver side door key cylinder in neutral position Below 1 V -
      Unlock side of driver side door control switch pushed or driver side door key cylinder in unlock position 11 to 14 V
      G47-7 (LSFL) - Body ground Input G - Body ground Front door LH lock position switch input Front door LH unlocked Below 1 V FL Door Lock Pos
      Engine switch off, all doors closed and front door LH locked Pulse generation (See waveform 1 or 2)
      G47-18 (LSFR) - Body ground Input G - Body ground Front door RH lock position switch input Front door RH unlocked Below 1 V FR Door Lock Pos
      Engine switch off, all doors closed and front door RH locked Pulse generation (See waveform 1 or 2)
      2H-25 (LSWL) - Body ground Input B - Body ground Rear door LH lock position switch input Rear door LH unlocked Below 1 V RR-Door Lock Pos SW
      Engine switch off, all doors closed and rear door LH locked Pulse generation (See waveform 1 or 2)
      G46-2 (LSWR) - Body ground Input V - Body ground Rear door RH lock position switch input Rear door RH unlocked Below 1 V RL-Door Lock Pos SW
      Engine switch off, all doors closed and rear door RH locked Pulse generation (See waveform 3 or 4)
      G48-13 (LSWB) - Body ground Input SB - Body ground Back door lock position switch input Back door lock unlocked Below 1 V -
      Engine switch off, all doors closed and back door locked Pulse generation (See waveform 1 or 2)
      2H-9 (GHRY) - Body ground Input B - Body ground Glass hatch opener relay output Engine switch on (IG), glass hatch opener switch off Below 1 V -
      Engine switch on (IG), glass hatch opener switch on 11 to 14 V -

      If the result is not as specified, the main body ECU (multiplex network body ECU) or driver side junction block assembly may have a malfunction.

    5. Using an oscilloscope, check waveform 1.

      HINT: 

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

      Fig 11: Identifying Waveform 1
      GTY319360Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 1 (REFERENCE)

      Item Content
      Terminal No. (Symbol)
      • G47-9 (L1) - Body ground
      • G47-10 (UL1) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Door control switch off
      WAVEFORM 1 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G47-19 (BCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and back door closed
      WAVEFORM 1 (REFERENCE)

      Item Content
      Terminal No. (Symbol)
      • G47-1 (GCTY) - Body ground
      • G46-17 (GOSW) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and glass hatch closed
      WAVEFORM 1 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G47-24 (UL3) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and driver side door key cylinder in neutral position
      WAVEFORM 1 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G47-7 (LSFL) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and front door LH locked
      WAVEFORM 1 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G47-18 (LSFR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and front door RH locked
      WAVEFORM 1 (REFERENCE)

      Item Content
      Terminal No. (Symbol) 2H-25 (LSWL) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear door LH locked
      WAVEFORM 1 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G47-13 (LSWB) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and back door locked
    6. Using an oscilloscope, check waveform 2.

      HINT: 

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

      Fig 12: Waveform 2
      GTY322547Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 2 (REFERENCE)

      Item Content
      Terminal No. (Symbol)
      • G47-9 (L1) - Body ground
      • G47-10 (UL1) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Door control switch off
      WAVEFORM 2 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G47-19 (BCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and back door closed
      WAVEFORM 2 (REFERENCE)

      Item Content
      Terminal No. (Symbol)
      • G47-1 (GCTY) - Body ground
      • G46-17 (GOSW) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and glass hatch closed
      WAVEFORM 2 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G47-24 (UL3) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and driver side door key cylinder in neutral position
      WAVEFORM 2 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G47-7 (LSFL) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and front door LH locked
      WAVEFORM 2 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G47-18 (LSFR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and front door RH locked
      WAVEFORM 2 (REFERENCE)

      Item Content
      Terminal No. (Symbol) 2H-25 (LSWL) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear door LH locked
      WAVEFORM 2 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G48-13 (LSWB) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and back door locked
    7. Using an oscilloscope, check waveform 3.

      HINT: 

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

      Fig 13: Identifying Waveform 3
      GTY318716Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 3 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G47-11 (L2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and front door key cylinder in neutral position
      WAVEFORM 3 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G46-2 (LSWR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear door RH locked
    8. Using an oscilloscope, check waveform 4.

      HINT: 

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

      Fig 14: Identifying Waveform 4
      GTY322687Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 4 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G47-11 (L2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and front door key cylinder in neutral position
      WAVEFORM 4 (REFERENCE)

      Item Content
      Terminal No. (Symbol) G46-2 (LSWR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear door RH locked
scientia non olet · About LEMON Manuals