EASY ACCESS BUCKLE SYSTEM, Diagnostic DTC:B264F

DTC Code DTC Name
B264F Easy Access Buckle Sensor Malfunction

DESCRIPTION

When the buckle motor is in operation, this will be output if there is no sensor input to the position control ECU assembly despite movement in the normal and reverse directions.

DTC No. Detection Item DTC Detection Condition Trouble Area
B264F Easy Access Buckle Sensor Malfunction The lock detection positions for both normal and reverse directions of the sensor match

  • Position control ECU assembly

  • No. 2 position control ECU assembly

  • Front Seat Inner Belt Assembly LH (buckle motor)

  • Front Seat Inner Belt Assembly RH (buckle motor)

  • Harness or connector

WIRING DIAGRAM


  1. for Driver Side

    B006EGZE05
    for LHD
    *a SSLB
    *b Buckle Motor
    *c Position Control ECU Assembly
    *d Front Seat Inner Belt Assembly LH
    B006EGZE02
    for RHD
    *a SSLB
    *b Buckle Motor
    *c Position Control ECU Assembly
    *d Front Seat Inner Belt Assembly RH

  2. for Front Passenger Side

    B006EGZE06
    for LHD
    *a SSLB
    *b Buckle Motor
    *c No. 2 Position Control ECU Assembly
    *d Front Seat Inner Belt Assembly RH
    B006EGZE04
    for RHD
    *a SSLB
    *b Buckle Motor
    *c No. 2 Position Control ECU Assembly
    *d Front Seat Inner Belt Assembly LH

CAUTION / NOTICE / HINT

Note

Perform the initialization procedure and stored memory will be reset.

Tech Tips

After replacing the position control ECU assembly, seat assembly and parts (including removal and installation), initialize the position control ECU assembly.

Click here

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs.


      Body Electrical > Driver Seat > Clear DTCs
      Body Electrical > Passenger Seat > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Driver Seat > Trouble Codes
      Body Electrical > Passenger Seat > Trouble Codes
      OK
      DTC B264F is not output.
      Result
      Result Proceed to
      OK A
      NG (for Driver Side) B
      NG (for Front Passenger Side) C

    A

    USE SIMULATION METHOD TO CHECK Click here

    C

    CHECK VEHICLE CONDITION Click here

    B

  3. CHECK VEHICLE CONDITION


    1. Check vehicle condition.

      Result
      Proceed to
      for LHD
      for RHD

    for RHD

    PERFORM ACTIVE TEST USING GTS (EASY ACCESS BUCKLE) Click here

    for LHD

  4. PERFORM ACTIVE TEST USING GTS (EASY ACCESS BUCKLE)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Driver Seat / Active Test.

    5. Perform Active Test according to the display on the GTS.


      Body Electrical > Driver Seat > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Easy Access Buckle Operate the buckle motor UP/DOWN -

      Body Electrical > Driver Seat > Active Test
      Tester Display
      Easy Access Buckle
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT FRONT SEAT INNER BELT ASSEMBLY LH Click here

    OK

  5. CHECK POSITION CONTROL ECU ASSEMBLY


    1. Disconnect the position control ECU assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Q39-4 - Q39-8 Always 4.87 to 5.1 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT SEAT INNER BELT ASSEMBLY LH Click here

    NG

  6. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT INNER BELT ASSEMBLY LH (BUCKLE MOTOR))


    1. Disconnect the Q28 position control ECU assembly connector.

    2. Disconnect the Q39 front seat inner belt assembly LH (buckle motor) connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q28-12 (SSLB) - Q39-3 Always Below 1 Ω
      Q28-12 (SSLB) or Q39-3 - Other terminals and body ground Always 10 kΩ or higher
      Q28-16 (SGND) - Q39-7 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. INSPECT FRONT SEAT INNER BELT ASSEMBLY LH


    1. Remove the front seat inner belt assembly LH (buckle motor).

      Click here

    2. Inspect the front seat inner belt assembly LH (buckle motor).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT SEAT INNER BELT ASSEMBLY LH Click here

    OK

  8. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT INNER BELT ASSEMBLY LH (BUCKLE MOTOR))


    1. Disconnect the Q26 position control ECU assembly connector.

    2. Disconnect the Q39 front seat inner belt assembly LH (buckle motor) connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q26-10 (BCL+) - Q39-4 Always Below 1 Ω
      Q26-10 (BCL+) or Q39-4 - Other terminals and body ground Always 10 kΩ or higher
      Q26-4 (BCL-) - Q39-8 Always Below 1 Ω
      Q26-4 (BCL-) or Q39-8 - Other terminals and body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  9. PERFORM ACTIVE TEST USING GTS (EASY ACCESS BUCKLE)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Driver Seat / Active Test.

    5. Perform Active Test according to the display on the GTS.


      Body Electrical > Driver Seat > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Easy Access Buckle Operate the buckle motor UP/DOWN -

      Body Electrical > Driver Seat > Active Test
      Tester Display
      Easy Access Buckle
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT FRONT SEAT INNER BELT ASSEMBLY RH Click here

    OK

  10. CHECK POSITION CONTROL ECU ASSEMBLY


    1. Disconnect the position control ECU assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Q16-4 - Q16-8 Always 4.87 to 5.1 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT SEAT INNER BELT ASSEMBLY RH Click here

    NG

  11. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT INNER BELT ASSEMBLY RH (BUCKLE MOTOR))


    1. Disconnect the Q8 position control ECU assembly connector.

    2. Disconnect the Q16 front seat inner belt assembly RH (buckle motor) connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q8-12 (SSLB) - Q16-3 Always Below 1 Ω
      Q8-12 (SSLB) or Q16-3 - Other terminals and body ground Always 10 kΩ or higher
      Q8-16 (SGND) - Q16-7 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  12. INSPECT FRONT SEAT INNER BELT ASSEMBLY RH


    1. Remove the front seat inner belt assembly RH (buckle motor).

      Click here

    2. Inspect the front seat inner belt assembly RH (buckle motor).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT SEAT INNER BELT ASSEMBLY RH Click here

    OK

  13. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT INNER BELT ASSEMBLY RH (BUCKLE MOTOR))


    1. Disconnect the Q6 position control ECU assembly connector.

    2. Disconnect the Q16 front seat inner belt assembly RH (buckle motor) connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q6-10 (BCL+) - Q16-4 Always Below 1 Ω
      Q6-10 (BCL+) or Q16-4 - Other terminals and body ground Always 10 kΩ or higher
      Q6-4 (BCL-) - Q16-8 Always Below 1 Ω
      Q6-4 (BCL-) or Q16-8 - Other terminals and body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  14. CHECK VEHICLE CONDITION


    1. Check vehicle condition.

      Result
      Proceed to
      for LHD
      for RHD

    for RHD

    PERFORM ACTIVE TEST USING GTS (EASY ACCESS BUCKLE) Click here

    for LHD

  15. PERFORM ACTIVE TEST USING GTS (EASY ACCESS BUCKLE)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Driver Seat / Active Test.

    5. Perform Active Test according to the display on the GTS.


      Body Electrical > Passenger Seat > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Easy Access Buckle Operate the buckle motor UP/DOWN -

      Body Electrical > Passenger Seat > Active Test
      Tester Display
      Easy Access Buckle
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT FRONT SEAT INNER BELT ASSEMBLY RH Click here

    OK

  16. CHECK NO. 2 POSITION CONTROL ECU ASSEMBLY


    1. Disconnect the No. 2 position control ECU assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Q16-4 - Q16-8 Always 4.87 to 5.1 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT SEAT INNER BELT ASSEMBLY RH Click here

    NG

  17. CHECK HARNESS AND CONNECTOR (NO. 2 POSITION CONTROL ECU ASSEMBLY - FRONT SEAT INNER BELT ASSEMBLY RH (BUCKLE MOTOR))


    1. Disconnect the Q8 No. 2 position control ECU assembly connector.

    2. Disconnect the Q16 front seat inner belt assembly RH (buckle motor) connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q8-12 (SSLB) - Q16-3 Always Below 1 Ω
      Q8-12 (SSLB) or Q16-3 - Other terminals and body ground Always 10 kΩ or higher
      Q8-16 (SGND) - Q16-7 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 2 POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  18. INSPECT FRONT SEAT INNER BELT ASSEMBLY RH


    1. Remove the front seat inner belt assembly RH (buckle motor).

      Click here

    2. Inspect the front seat inner belt assembly RH (buckle motor).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT SEAT INNER BELT ASSEMBLY RH Click here

    OK

  19. CHECK HARNESS AND CONNECTOR (NO. 2 POSITION CONTROL ECU ASSEMBLY - FRONT SEAT INNER BELT ASSEMBLY RH (BUCKLE MOTOR))


    1. Disconnect the Q6 No. 2 position control ECU assembly connector.

    2. Disconnect the Q16 front seat inner belt assembly RH (buckle motor) connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q6-10 (BCL+) - Q16-4 Always Below 1 Ω
      Q6-10 (BCL+) or Q16-4 - Other terminals and body ground Always 10 kΩ or higher
      Q6-4 (BCL-) - Q16-8 Always Below 1 Ω
      Q6-4 (BCL-) or Q16-8 - Other terminals and body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 2 POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  20. PERFORM ACTIVE TEST USING GTS (EASY ACCESS BUCKLE)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Driver Seat / Active Test.

    5. Perform Active Test according to the display on the GTS.


      Body Electrical > Passenger Seat > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Easy Access Buckle Operate the buckle motor UP/DOWN -

      Body Electrical > Passenger Seat > Active Test
      Tester Display
      Easy Access Buckle
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT FRONT SEAT INNER BELT ASSEMBLY LH Click here

    OK

  21. CHECK NO. 2 POSITION CONTROL ECU ASSEMBLY


    1. Disconnect the No. 2 position control ECU assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Q39-4 - Q39-8 Always 4.87 to 5.1 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT SEAT INNER BELT ASSEMBLY LH Click here

    NG

  22. CHECK HARNESS AND CONNECTOR (NO. 2 POSITION CONTROL ECU ASSEMBLY - FRONT SEAT INNER BELT ASSEMBLY LH (BUCKLE MOTOR))


    1. Disconnect the Q28 No. 2 position control ECU assembly connector.

    2. Disconnect the Q39 front seat inner belt assembly LH (buckle motor) connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q28-12 (SSLB) - Q39-3 Always Below 1 Ω
      Q28-12 (SSLB) or Q39-3 - Other terminals and body ground Always 10 kΩ or higher
      Q28-16 (SGND) - Q39-7 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 2 POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  23. INSPECT FRONT SEAT INNER BELT ASSEMBLY LH


    1. Remove the front seat inner belt assembly LH (buckle motor).

      Click here

    2. Inspect the front seat inner belt assembly LH (buckle motor).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT SEAT INNER BELT ASSEMBLY LH Click here

    OK

  24. CHECK HARNESS AND CONNECTOR (NO. 2 POSITION CONTROL ECU ASSEMBLY - FRONT SEAT INNER BELT ASSEMBLY LH (BUCKLE MOTOR))


    1. Disconnect the Q26 No. 2 position control ECU assembly connector.

    2. Disconnect the Q39 front seat inner belt assembly LH (buckle motor) connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q26-10 (BCL+) - Q39-4 Always Below 1 Ω
      Q26-10 (BCL+) or Q39-4 - Other terminals and body ground Always 10 kΩ or higher
      Q26-4 (BCL-) - Q39-8 Always Below 1 Ω
      Q26-4 (BCL-) or Q39-8 - Other terminals and body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 2 POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR