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

  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    B264892E78

    1. Disconnect the G82 and G83 certification ECU (smart key ECU assembly) connectors.

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

      Tip:

      Measure the values on the wire harness side with the connector disconnected.

      Tester Connection

      Input/Output

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      Related Data List Item

      G82-11 (E) - Body ground

      -

      BR - Body ground

      Ground

      Always

      Below 1 Ω

      -

      G82-2 (+B) - G82-11 (E)

      Input

      W - BR

      +B power supply

      Power switch off

      11 to 14 V

      -

      G82-10 (CUTB) - G82-11 (E)

      Input

      P - BR

      Dark current cut pin*

      Power switch off

      11 to 14 V

      -

      • *: 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 set 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 electric waves every 0.25 seconds 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 G83 and G82 certification ECU (smart key ECU assembly) connectors.

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

      Tester Connection

      Input/Output

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      Related Data List Item

      G84-5 (IG) - G82-11 (E)

      Input

      LG - BR

      GR power supply

      Power switch off → on (IG)

      Below 1 V → 11 to 14 V

      Power Switch

      G84-12 (CLG1) - G82-11 (E)

      Output

      R - BR

      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. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly 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. Power switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought outside detection area*2

      6. All doors locked through wireless operation

      Pulse generation (See waveform 2)

      Overhead + Driver Side (key diagnostic mode)

      G84-13 (CG1B) - G82-11 (E)

      Output

      W - BR

      Output to driver door electrical key antenna (terminal on opposite side of component from CLG1 output terminal)

      Procedure:

      1. Power switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought outside detection area*2

      6. All doors locked through wireless operation

      Pulse generation (See waveform 2)

      Overhead + Driver Side (key diagnostic mode)

      G84-11 (CLG2) - G82-11 (E)

      Output

      G - BR

      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. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly 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. Power switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought outside detection area*2

      6. All doors locked through wireless operation

      Pulse generation (See waveform 2)

      Overhead + Passenger Side (key diagnostic mode)

      G84-10 (CG2B) - G82-11 (E)

      Output

      W - BR

      Output to front passenger door electrical key antenna (terminal on opposite side of component from CLG2 output terminal)

      Procedure:

      1. Power switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought outside detection area*2

      6. All doors locked through wireless operation

      Pulse generation (See waveform 2)

      Overhead + Passenger Side (key diagnostic mode)

      G84-3 (CLG5) - G82-11 (E)

      Output

      R - BR

      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. Door is open

      4. Door is closed

      5. Within 30 seconds

      Pulse generation (See waveform 3)

      Overhead + Front Room (key diagnostic mode)

      G84-2 (CG5B) - G82-11 (E)

      Output

      G - BR

      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. Door is open

      4. Door is closed

      5. Within 30 seconds

      Pulse generation (See waveform 3)

      Overhead + Front Room (key diagnostic mode)

      G84-20 (TSW1) - G82-11 (E)

      Input

      V - BR

      Driver door lock sensor signal input

      (Sends signal from door lock sensor on front door outside handle assembly to certification ECU [smart key ECU assembly]. Certification ECU [smart key ECU assembly] send 12 V pulse waveform every 20 ms. from terminal TSW. When door lock sensor is touched, pulse is grounded.)

      Procedure:

      1. Power switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Driver door lock sensor not touched → touched

      Pulse generation (See waveform 5)

      D-Door Trigger Switch

      G84-8 (TSW2) - G82-11 (E)

      Input

      BE - BR

      Front passenger door lock sensor signal input

      (Sends signal from door lock sensor on front door outside handle assembly to certification ECU [smart key ECU assembly]. Certification ECU [smart key ECU assembly] sends 12 V pulse waveform every 20 ms. from terminal TSW. When door lock sensor is touched, pulse is grounded.)

      Procedure:

      1. Power switch off

      2. Electrical key transmitter sub-assembly brought outside vehicle

      3. All doors closed

      4. Front passenger door lock sensor not touched → touched

      Pulse generation (See waveform 5)

      P-Door Trigger Switch

      G84-22 (SEN1) - G82-11 (E)

      Input

      R - BR

      Driver door unlock sensor signal input

      (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch 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 sufficiently close to vehicle

      5. Driver door unlock sensor not touched → touched

      Pulse generation (See waveform 5)

      D-Door Touch Sensor

      G84-23 (SEN2) - G82-11 (E)

      Input

      W - BR

      Front passenger door unlock sensor signal input

      (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch 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 sufficiently close to vehicle

      5. Front passenger door unlock sensor not touched → touched

      Pulse generation (See waveform 5)

      P-Door Touch Sensor

      G83-27 (TSW5) - G82-11 (E)

      Input

      Y - BR

      Back door opener switch assembly (unlock switch) signal input

      Back door opener switch assembly (unlock switch) off → on

      Pulse generation (See waveform 5)

      Tr/B-Door Unlock SW

      G83-28 (TSW6) - G82-11 (E)

      Input

      L - BR

      Back door opener switch assembly (lock switch) signal input

      Back door opener switch assembly (lock switch) off → on

      Pulse generation (See waveform 5)

      Tr/B-Door Lock SW

      G83-11 (CLG6) - G82-11 (E)

      Output

      W - BR

      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. Door is open

      4. Door is closed

      5. Within 30 seconds

      Pulse generation (See waveform 3)

      Overhead + Rear Room (key diagnostic mode)

      G83-10 (CG6B) - G82-11 (E)

      Output

      B - BR

      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. Door is open

      4. Door is closed

      5. Within 30 seconds

      Pulse generation (See waveform 3)

      Overhead + Rear Room (key diagnostic mode)

      G83-9 (CLG7) - G82-11 (E)

      Output

      W - BR

      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. Door is open

      4. Door is closed

      5. Within 30 seconds

      Pulse generation (See waveform 3)

      Overhead + Back Door (inside) (key diagnostic mode)

      G83-8 (CG7B) - G82-11 (E)

      Output

      B - BR

      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. Door is open

      4. Door is closed

      5. Within 30 seconds

      Pulse generation (See waveform 3)

      Overhead + Back Door (inside) (key diagnostic mode)

      G84-19 (POS1) - G82-11 (E)

      Output

      Y - BR

      Driver door unlock sensor power source (12 V [drops when power switch turned on (IG)])

      Power switch off → on (IG)

      9 to 14 V → Below 2 V

      -

      G84-21 (POS2) - G82-11 (E)

      Output

      B - BR

      Front passenger door unlock sensor power source (12 V [drops when power switch turned on (IG)])

      Power switch off → on (IG)

      9 to 14 V → Below 2 V

      -

      G83-5 (RCO) - G82-11 (E)

      Output

      V - BR

      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 vehicle

      3. Electrical key transmitter sub-assembly brought outside detection area*2 but kept inside wireless function operational area*3

      4. Lock or unlock button of electrical key transmitter sub-assembly not pressed → pressed

      Pulse generation (See waveform 6)

      -

      G83-17 (RDAM) - G82-11 (E)

      Input

      Y - BR

      Door control receiver verifies data received from electrical key transmitter sub-assembly. Door control receiver sends data to ECU and 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 brought outside detection area*2 but kept inside wireless function operational area*3

      4. Lock or unlock button of electrical key transmitter sub-assembly not pressed → pressed

      Pulse generation (See waveform 7)

      -

      G83-6 (CSEL) - G82-11 (E)

      Output

      BR - BR

      Communication channel switching circuit

      Procedure:

      1. Power switch off

      2. All doors closed

      Below 1 V → 4.5 to 6 V → Below 1 V

      Key diagnostic mode

      G83-2 (CLG8) - G82-11 (E)

      Output

      B - BR

      Output to electrical key antenna (outside luggage)

      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 4)

      Overhead + Back Door

      or

      Luggage + Back Door (key diagnostic mode)

      G83-1 (CG8B) - G82-11 (E)

      Output

      W - BR

      Output to electrical key antenna (outside luggage) (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 4)

      Overhead + Back Door

      or

      Luggage + Back Door (key diagnostic mode)

      • *1: For details about the areas that are inside the entry function detection area, refer to Operation Check.

        Click here

      • *2: For details about the areas that are outside the entry function detection area, refer to Operation Check.

        Click here

      • *3: For details about the areas that are inside the wireless function operational area, refer to Operation Check.

        Click here

    5. B251021N05

      Using an oscilloscope, check waveform 1.

      Tip:

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

      Table 1. Waveform 1 (Reference)

      Item

      Content

      Tester Connection

      • G84-12 (CLG1) - G82-11 (E)

      • G84-11 (CLG2) - G82-11 (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. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought inside detection area*

      6. All doors locked through wireless operation

      • *: For details about the areas that are inside the entry function detection area, refer to Operation Check.

        Click here

    6. B251024N05

      Using an oscilloscope, check waveform 2.

      Tip:

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

      Table 2. Waveform 2 (Reference)

      Item

      Content

      Tester Connection

      • G84-12 (CLG1) - G82-11 (E)

      • G84-11 (CLG2) - G82-11 (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. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought outside detection area*

      6. All doors locked through wireless operation

      • *: For details about the areas that are outside the entry function detection area, refer to Operation Check.

        Click here

      Table 3. Waveform 2 (Reference)

      Item

      Content

      Tester Connection

      • G84-13 (CG1B) - G82-11 (E)

      • G84-10 (CG2B) - G82-11 (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. Electrical key transmitter sub-assembly not inside vehicle

      5. Electrical key transmitter sub-assembly brought outside detection area*

      6. All doors locked through wireless operation

      • *: For details about the areas that are outside the entry function detection area, refer to Operation Check.

        Click here

    7. B251020C13

      *a

      Door open

      *b

      After approximately 30 seconds from when the door is closed

      Using an oscilloscope, check waveform 3.

      Tip:

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

      Table 4. Waveform 3 (Reference)

      Item

      Content

      Tester Connection

      • G84-3 (CLG5) - G82-11 (E)

      • G84-2 (CG5B) - G82-11 (E)

      • G83-11 (CLG6) - G82-11 (E)

      • G83-10 (CG6B) - G82-11 (E)

      • G83-9 (CLG7) - G82-11 (E)

      • G83-8 (CG7B) - G82-11 (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. Door is open

      4. Door is closed

      5. Within 30 seconds
    8. B265917C03

      *a

      Power switch off, all doors closed and back door opener switch assembly off → on

      Using an oscilloscope, check waveform 4.

      Tip:

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

      Table 5. Waveform 4 (Reference)

      Item

      Content

      Tester Connection

      • G83-2 (CLG8) - G82-11 (E)

      • G83-1 (CG8B) - G82-11 (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
    9. B251023C09

      *a

      In actuality, sampling is being performed

      Using an oscilloscope, check waveform 5.

      Tip:

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

      Table 6. Waveform 5 (Reference)

      Item

      Content

      Tester Connection

      G84-20 (TSW1) - G82-11 (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. Driver door lock sensor not touched → touched
      Table 7. Waveform 5 (Reference)

      Item

      Content

      Tester Connection

      G84-8 (TSW2) - G82-11 (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. Front passenger door lock sensor not touched → touched
      Table 8. Waveform 5 (Reference)

      Item

      Content

      Tester Connection

      G84-22 (SEN1) - G82-11 (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 locked

      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle

      5. Driver door unlock sensor not touched → touched
      Table 9. Waveform 5 (Reference)

      Item

      Content

      Tester Connection

      G84-23 (SEN2) - G82-11 (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 locked

      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle

      5. Front passenger door unlock sensor not touched → touched
      Table 10. Waveform 5 (Reference)

      Item

      Content

      Tester Connection

      G83-27 (TSW5) - G82-11 (E)

      Tool Setting

      2 V/DIV., 500 ms/DIV

      Condition

      Back door opener switch assembly (unlock switch) off → on
      Table 11. Waveform 5 (Reference)

      Item

      Content

      Tester Connection

      G83-28 (TSW6) - G82-11 (E)

      Tool Setting

      2 V/DIV., 500 ms/DIV

      Condition

      Back door opener switch assembly (lock switch) off → on
    10. B251178C12

      *a

      Before lock or unlock button of electrical key transmitter sub-assembly pressed

      *b

      After lock or unlock button of electrical key transmitter sub-assembly pressed

      Using an oscilloscope, check waveform 6.

      Tip:

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

      Table 12. Waveform 6 (Reference)

      Item

      Content

      Tester Connection

      G83-5 (RCO) - G82-11 (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. Electrical key transmitter sub-assembly brought outside detection area*1 but kept inside wireless function operational area*2

      4. Lock or unlock button of electrical key transmitter sub-assembly not pressed → pressed

      • *1: For details about the areas that are outside the entry function detection area, refer to Operation Check.

        Click here

      • *2: For details about the areas that are inside the wireless function operational area, refer to Operation Check.

        Click here

    11. B251177C12

      *a

      Before lock or unlock button of electrical key transmitter sub-assembly pressed

      *b

      After lock or unlock button of electrical key transmitter sub-assembly pressed

      Using an oscilloscope, check waveform 7.

      Tip:

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

      Table 13. Waveform 7 (Reference)

      Item

      Content

      Tester Connection

      G83-17 (RDAM) - G82-11 (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 brought outside detection area*1 but kept inside wireless function operational area*2

      4. Lock or unlock button of electrical key transmitter sub-assembly not pressed → pressed

      • *1: For details about the areas that are outside the entry function detection area, refer to Operation Check.

        Click here

      • *2: For details about the areas that are inside the wireless function operational area, refer to Operation Check.

        Click here

  2. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    C278789N02
    C278790C04

    *A

    Main Body ECU (Multiplex Network Body ECU) with 1 connector

    *B

    Main Body ECU (Multiplex Network Body ECU) with 3 connectors

    *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.

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

      Tip:

      Measure the values on the wire harness side with the connector disconnected.

      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-30 (BECU) - Body ground

      Input

      -

      Auxiliary battery power supply

      Power switch off

      11 to 14 V

      -

      A-29 (ACC) - Body ground

      Input

      -

      ACC power supply

      Power switch off

      Below 1 V

      ACC SW

      Power switch on (ACC)

      11 to 14 V

      A-32 (IG) - Body ground

      Input

      -

      Power switch power supply

      Power switch off

      Below 1 V

      IG SW

      Power switch on (IG)

      11 to 14 V

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

    3. Install the main body ECU (multiplex network body ECU) to the instrument panel junction block assembly.

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

      Tester Connection

      Input/Output

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      Related Data List Item

      3E-40 (FLCY) - Body ground

      Input

      W - Body ground

      Front door LH courtesy light switch input

      Front door LH closed → open

      Pulse generation (See waveform 2)

      FL Door Courtesy SW

      G78-19 (FRCY) - Body ground

      Input

      GR - Body ground*4

      L - Body ground*5

      Front door RH courtesy light switch input

      Front door RH closed → open

      Pulse generation (See waveform 1)

      FR Door Courtesy SW

      G78-24 (LCTY) - Body ground*4

      G78-1 (LCTY) - Body ground*5

      Input

      SB - Body ground*4

      W - Body ground*5

      Rear door LH courtesy light switch input

      Rear door LH closed → open

      Pulse generation (See waveform 1)*2

      RL Door Courtesy SW

      Pulse generation (See waveform 2)*1

      G78-6 (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

      3E-33 (BCTY) - Body ground

      Input

      GR - Body ground

      Back door courtesy light switch input

      Back door open

      Below 1 V

      Back Door Courtesy SW

      Power switch off, all doors closed and back door closed

      11 to 14 V

      G78-11 (L2) - Body ground

      Input

      R - Body ground*4

      BR - Body ground*5

      Driver door key-linked lock input

      Power switch off, all doors closed and driver door key cylinder in neutral position → lock position

      Pulse generation (See waveform 1)*1

      Door Key SW-Lock

      Pulse generation (See waveform 2)*2

      G78-12 (UL2) - Body ground

      Input

      L - Body ground*4

      LG - Body ground*5

      Driver door key-linked unlock input

      Power switch off, all doors closed and driver door key cylinder in neutral position → unlock position

      Pulse generation (See waveform 1)*2

      D Door Key SW-UL

      Pulse generation (See waveform 2)*1

      3D-11 (ACT+) - Body ground

      Output

      R - Body ground

      Door lock motor lock drive output

      Driver door control switch not pushed and driver door key cylinder in neutral position

      Below 1 V

      -

      Lock side of driver door control switch pushed or driver door key cylinder in lock position

      11 to 14 V

      3D-12 (ACT+) - Body ground

      Output

      R - Body ground

      Door lock motor lock drive output

      Driver door control switch not pushed and driver door key cylinder in neutral position

      Below 1 V

      -

      Lock side of driver door control switch pushed or driver door key cylinder in lock position

      11 to 14 V

      3D-13 (ACT+) - Body ground

      Output

      R - Body ground

      Door lock motor lock drive output

      Driver door control switch not pushed and driver door key cylinder in neutral position

      Below 1 V

      -

      Lock side of driver door control switch pushed or driver door key cylinder in lock position

      11 to 14 V

      3E-7 (ACT+) - Body ground

      Output

      R - Body ground

      Door lock motor lock drive output

      Driver door control switch not pushed and driver door key cylinder in neutral position

      Below 1 V

      -

      Lock side of driver door control switch pushed or driver door key cylinder in lock position

      11 to 14 V

      3E-8 (TR+) - Body ground*3

      Output

      R - Body ground

      Driver door lock motor unlock drive output

      Back door lock motor operating

      Below 1 V

      -

      Back door lock motor not operating

      11 to 14 V

      3D-3 (ACT-) - Body ground

      Output

      B - Body ground

      Door lock motor unlock drive output

      Driver door control switch not pushed and driver door key cylinder in neutral position

      Below 1 V

      -

      Unlock side of driver door control switch pushed or driver door key cylinder in unlock position

      11 to 14 V

      3D-4 (ACT-) - Body ground

      Output

      B - Body ground

      Door lock motor unlock drive output

      Driver door control switch not pushed and driver door key cylinder in neutral position

      Below 1 V

      -

      Unlock side of driver door control switch pushed or driver door key cylinder in unlock position

      11 to 14 V

      3D-5 (ACT-) - Body ground*6

      Output

      B - Body ground

      Door lock motor unlock drive output (all door)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder unlocked

      11 to 14 V

      -

      3D-10 (ACTD) - Body ground*7

      Output

      B - Body ground

      Door lock motor unlock drive output (all door)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder off

      Below 1 V

      -

      Door control switch (power window regulator master switch assembly) or driver door key cylinder unlocked

      11 to 14 V

      3E-1 (ACT-) - Body ground

      Output

      BR - Body ground

      Door lock motor unlock drive output

      Driver door control switch not pushed and driver door key cylinder in neutral position

      Below 1 V

      -

      Unlock side of driver door control switch pushed or driver door key cylinder in unlock position

      11 to 14 V

      G78-24 (LCTY) - Body ground*4

      G78-1 (LCTY) - Body ground*5

      Input

      SB - Body ground*4

      W - Body ground*5

      Rear door LH courtesy light switch input

      Rear door LH open

      Below 1 V

      RL Door Courtesy SW

      Rear door LH closed

      Pulse generation

      G78-7 (LSFL) - Body ground

      Input

      B - Body ground

      Front door LH unlock detection switch input

      Power switch off, all doors closed and front door LH locked → unlocked

      Pulse generation (See waveform 1)*1

      FL Door Lock Pos

      Pulse generation (See waveform 2)*2

      G78-18 (LSFR) - Body ground

      Input

      P - Body ground

      Front door RH unlock detection switch input

      Power switch off, all doors closed and front door RH locked → unlocked

      Pulse generation (See waveform 2)

      FR Door Lock Pos

      3E-32 (LSR) - Body ground

      Input

      Y - Body ground

      Rear door LH unlock detection switch input

      Power switch off, all doors closed and rear door LH and rear door RH locked → unlocked

      Pulse generation (See waveform 1)

      RL-Door Lock Pos SW

      3C-41 (LSR) - Body ground

      Input

      Y - Body ground

      Rear door RH unlock detection switch input

      Power switch off, all doors closed and rear door RH and rear door LH locked → unlocked

      Pulse generation (See waveform 1)

      RR-Door Lock Pos SW

      • *1: w/ Wireless Door Lock Buzzer Answer Back Function

      • *2: w/o Wireless Door Lock Buzzer Answer Back Function

      • *3: w/o Power Back Door System

      • *4: for RHD

      • *5: for LHD

      • *6: w/ Panic Switch

      • *7: w/o Panic Switch

      If the result is not as specified, the main body ECU (multiplex network body ECU) or instrument panel junction block assembly may be malfunctioning.

    5. B341707N01

      Using an oscilloscope, check waveform 1.

      Tip:

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

      Table 14. Waveform 1 (Reference)

      Item

      Content

      Tester Connection

      G78-19 (FRCY) - Body ground

      Tool Setting

      2 V/DIV., 200 ms/DIV.

      Condition

      Front door RH closed → open
      Table 15. Waveform 1 (Reference)

      Item

      Content

      Tester Connection

      G78-24 (LCTY) - Body ground*1

      G78-1 (LCTY) - Body ground*2

      Tool Setting

      2 V/DIV., 200 ms/DIV.

      Condition

      Rear door LH closed → open
      Table 16. Waveform 1 (Reference)

      Item

      Content

      Tester Connection

      G78-24 (UL2) - Body ground*1

      G78-12 (UL2) - Body ground*2

      Tool Setting

      2 V/DIV., 200 ms/DIV.

      Condition

      Power switch off, all doors closed and driver door key cylinder in neutral position → unlock position
      Table 17. Waveform 1 (Reference)

      Item

      Content

      Tester Connection

      3E-32 (LSR) - Body ground

      Tool Setting

      2 V/DIV., 200 ms/DIV.

      Condition

      Power switch off, all doors closed and rear door LH and rear door RH locked → unlocked
      Table 18. Waveform 1 (Reference)

      Item

      Content

      Tester Connection

      3C-41 (LSR) - Body ground

      Tool Setting

      2 V/DIV., 200 ms/DIV.

      Condition

      Power switch off, all doors closed and rear door RH and rear door LH locked → unlocked
      Table 19. Waveform 1 (Reference)

      Item

      Content

      Tester Connection

      G78-11 (L2) - Body ground

      Tool Setting

      2 V/DIV., 200 ms/DIV.

      Condition

      Power switch off, all doors closed and driver door key cylinder in neutral position → lock position
      Table 20. Waveform 1 (Reference)

      Item

      Content

      Tester Connection

      G78-11 (L2) - Body ground

      Tool Setting

      2 V/DIV., 200 ms/DIV.

      Condition

      Power switch off, all doors closed and driver door key cylinder in neutral position → lock position

      • *1: w/ Memory

      • *2: w/o Memory

    6. B337189N02

      Using an oscilloscope, check waveform 2.

      Tip:

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

      Table 21. waveform 2 (Reference)

      Item

      Content

      Tester Connection

      G78-18 (LSFR) - Body ground

      Tool Setting

      5 V/DIV., 20 ms/DIV.

      Condition

      Power switch off, all doors closed and front door RH locked → unlocked
      Table 22. waveform 2 (Reference)

      Item

      Content

      Tester Connection

      3E-40 (FLCY) - Body ground

      Tool Setting

      5 V/DIV., 20 ms/DIV.

      Condition

      Front door LH closed → open
      Table 23. waveform 2 (Reference)

      Item

      Content

      Tester Connection

      G78-24 (LCTY) - Body ground*1

      G78-1 (LCTY) - Body ground*2

      Tool Setting

      5 V/DIV., 20 ms/DIV.

      Condition

      Rear door LH closed → open
      Table 24. waveform 2 (Reference)

      Item

      Content

      Tester Connection

      G78-6 (RCTY) - Body ground

      Tool Setting

      5 V/DIV., 20 ms/DIV.

      Condition

      Rear door RH closed → open
      Table 25. waveform 2 (Reference)

      Item

      Content

      Tester Connection

      G78-24 (UL3) - Body ground*1

      G78-12 (UL2) - Body ground*2

      Tool Setting

      5 V/DIV., 20 ms/DIV.

      Condition

      Power switch off, all doors closed and driver door key cylinder in neutral position → unlock position
      Table 26. waveform 2 (Reference)

      Item

      Content

      Tester Connection

      G78-7 (LSFL) - Body ground

      Tool Setting

      5 V/DIV., 20 ms/DIV.

      Condition

      Power switch off, all doors closed and front door LH locked → unlocked
      Table 27. Waveform 2 (Reference)

      Item

      Content

      Tester Connection

      G78-11 (L2) - Body ground

      Tool Setting

      5 V/DIV., 20 ms/DIV.

      Condition

      Power switch off, all doors closed and driver door key cylinder in neutral position → lock position

      • *1: w/ Memory

      • *2: w/o Memory

  3. CHECK MULTIPLEX NETWORK DOOR ECU (w/ Power Back Door System)

    B426088E09

    1. Disconnect the U29 and U30 multiplex network door ECU connectors.

    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

      U29-20 (ECUB) - Body ground

      Input

      W - Body ground

      Auxiliary battery power supply

      Power switch off

      11 to 14 V

      -

      U29-18 (IG) - Body ground

      Input

      W - Body ground

      IG power supply

      Power switch on (IG)

      11 to 14 V

      -

      Power switch off

      Below 1 V

      -

      U30-1 (B) - Body ground

      Input

      W - Body ground

      Auxiliary battery power supply

      Always

      11 to 14 V

      -

      U30-10 (GND) - Body ground

      -

      W-B - Body ground

      Body ground

      Always

      Below 1 Ω

      -

    3. Reconnect the U29 and U30 multiplex network door ECU connectors.

    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

      U30-4 (DC+) - U30-3 (DC-)

      Output

      B - R

      Back door lock assembly (back door lock motor) circuit

      Back door lock motor operating

      11 to 14 V

      -

      U30-4 (DC+) - U30-3 (DC-)

      Output

      B - R

      Back door lock assembly (back door lock motor) circuit

      Back door lock motor not operating

      Below 1 V

      -