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FRONT POWER SEAT CONTROL SYSTEM, Diagnostic DTC:B2650

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DTC Code DTC Name
B2650 Slide Sensor Malfunction
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DESCRIPTION

When the position control ECU and switch assembly (driver seat) or position control ECU and switch assembly (front passenger seat) does not receive a sensor signal despite forward or backward movement of the seat by power seat motor operation, this DTC is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2650 Slide Sensor Malfunction The forward and backward lock detection position of the sensor is the same.

  • Position control ECU and switch assembly (driver seat)

  • Position control ECU and switch assembly (front passenger seat)

  • Slide motor (Front seat adjuster assembly (driver seat))

  • Slide motor (Front seat adjuster assembly (front passenger seat))

  • Wire harness or connector
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WIRING DIAGRAM


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  1. B0066GTE05

    for Driver Seat

  2. B0066GTE06

    for Front Passenger Seat

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PROCEDURE


  1. Click here

    CLEAR DTC


    1. Clear the DTCs.

      Click here


      1. Body Electrical > Driver Seat > Clear DTCs



      1. Body Electrical > Passenger Seat > Clear DTCs


      Result
      Proceed to
      NEXT

  2. Click here

    CHECK FOR DTC


    1. Check for DTCs.

      Click here


      1. Body Electrical > Driver Seat > Trouble Codes



      1. Body Electrical > Passenger Seat > Trouble Codes


      OK
      DTC B2650 is not output.
      Result
      Result Proceed to
      DTC B2650 is not output A
      DTC B2650 output from "Driver Seat" B
      DTC B2650 output from "Front Passenger Seat" C

  3. Click here

    PERFORM ACTIVE TEST USING GTS (SLIDE MOTOR)


    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 the Active Test according to the display on the GTS.


      1. Body Electrical > Driver Seat > Active Test
        Tester Display Measurement Item Control Range Diagnostic Note
        Seat Slide Operation Seat slide operation OFF/Rear/Front -



      1. Body Electrical > Driver Seat > Active Test
        Tester Display
        Seat Slide Operation




      OK
      Motor operates normally.
      Result
      Proceed to
      OK
      NG

  4. Click here

    CHECK POSITION CONTROL ECU AND SWITCH ASSEMBLY (DRIVER SEAT) (SLIDE MOTOR CIRCUIT)


    1. Disconnect the b1*1 or a1*2 slide motor (front seat adjuster assembly (driver seat)) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Voltage
      Table 1. for LHD
      Tester Connection Condition Specified Condition
      b1-2 (O/P) - b1-3 (GND) Slide switch on 4.8 to 5.1 V
      Table 2. for RHD
      Tester Connection Condition Specified Condition
      a1-2 (O/P) - a1-3 (GND) Slide switch on 4.8 to 5.1 V
      Result
      Proceed to
      OK
      NG

  5. Click here

    CHECK SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY (DRIVER SEAT))


    1. B0066ENC07
      *A for LHD
      *B for RHD
      *a

      Component with harness connected

      (Slide Motor (Front Seat Adjuster Assembly (Driver Seat))

      Reconnect the b1*1 or a1*2 slide motor (front seat adjuster assembly (driver seat)) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Voltage
      Table 3. for LHD
      Tester Connection Condition Specified Condition
      b1-2 (O/P) - Body ground Slide motor operating 4.5 to 4.8 V
      Table 4. for RHD
      Tester Connection Condition Specified Condition
      a1-2 (O/P) - Body ground Slide motor operating 4.5 to 4.8 V
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY (DRIVER SEAT)Click here

    • NG

      REPLACE SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY (DRIVER SEAT))Click here

  6. Click here

    CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH ASSEMBLY (DRIVER SEAT) - SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY (DRIVER SEAT)))


    1. Disconnect the b5*1 or a5*2 position control ECU and switch assembly (driver seat) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      Table 5. for LHD
      Tester Connection Condition Specified Condition
      b5-5 (SSRS) - b1-2 (O/P) Always Below 1 Ω
      b5-5 (SSRS) or b1-2 (O/P) - Body ground Always 10 kΩ or higher
      b5-1 (SGND) - b1-3 (GND) Always Below 1 Ω
      b5-1 (SGND) or b1-3 (GND) - Body ground Always 10 kΩ or higher
      Table 6. for RHD
      Tester Connection Condition Specified Condition
      a5-5 (SSRS) - a1-2 (O/P) Always Below 1 Ω
      a5-5 (SSRS) or a1-2 (O/P) - Body ground Always 10 kΩ or higher
      a5-1 (SGND) - a1-3 (GND) Always Below 1 Ω
      a5-1 (SGND) or a1-3 (GND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY (DRIVER SEAT)Click here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. Click here

    INSPECT SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY (DRIVER SEAT))


    1. Remove the front seat adjuster assembly (driver seat).

      Click here

    2. Inspect the front seat adjuster assembly (driver seat) (slide motor).

      Click here

      Result
      Proceed to
      OK
      NG

  8. Click here

    CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH ASSEMBLY (DRIVER SEAT) - SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY (DRIVER SEAT)))


    1. Disconnect the b4*1 or a4*2 position control ECU and switch assembly (driver seat) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      Table 7. for LHD
      Tester Connection Condition Specified Condition
      b4-3 (SLD+) - b1-4 (FWD) Always Below 1 Ω
      b4-3 (SLD+) or b1-4 (FWD) - Body ground Always 10 kΩ or higher
      b4-4 (SLD-) - b1-1 (BACK) Always Below 1 Ω
      b4-4 (SLD-) or b1-1 (BACK) - Body ground Always 10 kΩ or higher
      Table 8. for RHD
      Tester Connection Condition Specified Condition
      a4-3 (SLD+) - a1-4 (FWD) Always Below 1 Ω
      a4-3 (SLD+) or a1-4 (FWD) - Body ground Always 10 kΩ or higher
      a4-4 (SLD-) - a1-1 (BACK) Always Below 1 Ω
      a4-4 (SLD-) or a1-1 (BACK) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY (DRIVER SEAT)Click here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  9. Click here

    PERFORM ACTIVE TEST USING GTS (SLIDE MOTOR)


    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 / Passenger Seat / Active Test.

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


      1. Body Electrical > Passenger Seat > Active Test
        Tester Display Measurement Item Control Range Diagnostic Note
        Seat Slide Operation Seat slide operation OFF/Rear/Front -



      1. Body Electrical > Passenger Seat > Active Test
        Tester Display
        Seat Slide Operation




      OK
      Motor operates normally.
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPLACE SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY (FRONT PASSENGER SEAT))Click here

  10. Click here

    CHECK POSITION CONTROL ECU AND SWITCH ASSEMBLY (FRONT PASSENGER SEAT) (SLIDE MOTOR CIRCUIT)


    1. Disconnect the a1*1 or b1*2 slide motor (front seat adjuster assembly (front passenger seat)) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Voltage
      Table 9. for LHD
      Tester Connection Condition Specified Condition
      a1-2 (O/P) - a1-3 (GND) Slide switch on 4.8 to 5.1 V
      Table 10. for RHD
      Tester Connection Condition Specified Condition
      b1-2 (O/P) - b1-3 (GND) Slide switch on 4.8 to 5.1 V
      Result
      Proceed to
      OK
      NG

  11. Click here

    CHECK SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY (FRONT PASSENGER SEAT))


    1. B0066ENC08
      *A for LHD
      *B for RHD
      *a

      Component with harness connected

      (Slide Motor (Front Seat Adjuster Assembly (Front Passenger seat))

      Reconnect the a1*1 or b1*2 slide motor (front seat adjuster assembly (Front Passenger seat)) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Voltage
      Table 11. for LHD
      Tester Connection Condition Specified Condition
      a1-2 (O/P) - Body ground Slide motor operating 4.5 to 4.8 V
      Table 12. for RHD
      Tester Connection Condition Specified Condition
      b1-2 (O/P) - Body ground Slide motor operating 4.5 to 4.8 V
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY (FRONT PASSENGER SEAT)Click here

    • NG

      REPLACE SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY (FRONT PASSENGER SEAT))Click here

  12. Click here

    CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH ASSEMBLY (FRONT PASSENGER SEAT) - SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY (FRONT PASSENGER SEAT)))


    1. Disconnect the a5*1 or b5*2 position control ECU and switch assembly (front passenger seat) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      Table 13. for LHD
      Tester Connection Condition Specified Condition
      a5-5 (SSRS) - a1-2 (O/P) Always Below 1 Ω
      a5-5 (SSRS) or a1-2 (O/P) - Body ground Always 10 kΩ or higher
      a5-1 (SGND) - a1-3 (GND) Always Below 1 Ω
      a5-1 (SGND) or a1-3 (GND) - Body ground Always 10 kΩ or higher
      Table 14. for RHD
      Tester Connection Condition Specified Condition
      b5-5 (SSRS) - b1-2 (O/P) Always Below 1 Ω
      b5-5 (SSRS) or b1-2 (O/P) - Body ground Always 10 kΩ or higher
      b5-1 (SGND) - b1-3 (GND) Always Below 1 Ω
      b5-1 (SGND) or b1-3 (GND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY (FRONT PASSENGER SEAT)Click here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR