FRONT POWER SEAT CONTROL SYSTEM(w/ Memory), Diagnostic DTC:B2658

DTC Code DTC Name
B2658 Short in Sensor with Motor Power Supply Circuit

DESCRIPTION

This DTC is stored when a power seat motor operates (a position control sensor is being supplied with power) and the power supply voltage does not rise to the specified value.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2658 Short in Sensor with Motor Power Supply Circuit Problem with the voltage supplied to the position control sensor.

  • Front power seat switch (for Driver Side)

  • Front seat adjuster assembly (for Driver Side)

  • Harness or connector

WIRING DIAGRAM


  1. for LHD

    B008IZUE03
    *a O/P
    *b Slide Motor
    *c Front Seat Adjuster Assembly LH
    *d Front Power Seat Switch LH

  2. for RHD

    B008IZUE02
    *a O/P
    *b Slide Motor
    *c Front Seat Adjuster Assembly RH
    *d Front Power Seat Switch RH

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs.

      Click here


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

    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Driver Seat > Trouble Codes
      OK
      DTC B2658 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  3. CHECK FRONT POWER SEAT SWITCH (for Driver Side) (SLIDE MOTOR CIRCUIT)


    1. B008HN6C02
      *A for LHD
      *B for RHD
      *a

      Component with harness connected

      (Front Power Seat Switch [for Driver Side])

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

      Standard Voltage
      for LHD
      Tester Connection Condition Specified Condition
      g12-1 (SGND) - g12-5 (SSRS) Slide function operating 4.8 to 5.1 V
      for RHD
      Tester Connection Condition Specified Condition
      f7-1 (SGND) - f7-5 (SSRS) Slide function operating 4.8 to 5.1 V
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH [for Driver Side] - FRONT SEAT ADJUSTER ASSEMBLY [for Driver Side] [SLIDE MOTOR]) Click here

    OK

  4. CLEAR DTC


    1. Clear the DTCs.

      Click here


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

    NEXT

  5. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Driver Seat > Trouble Codes
      OK
      DTC B2658 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    REPLACE FRONT POWER SEAT SWITCH (for Driver Side) Click here

  6. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH [for Driver Side] - FRONT SEAT ADJUSTER ASSEMBLY [for Driver Side] [SLIDE MOTOR])


    • *1: for LHD

    • *2: for RHD


    1. Disconnect the g12*1 or f7*2 front power seat switch (for Driver Side) connector.

    2. Disconnect the g10*1 or f1*2 front seat adjuster assembly (for Driver Side) connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      g12-5 (SSRS) - g10-2 (O/P) Always Below 1 Ω
      g12-5 (SSRS) or g10-2 (O/P) - Body ground Always 10 kΩ or higher
      g12-1 (SGND) - g10-3 (GND) Always Below 1 Ω
      g12-1 (SGND) or g10-3 (GND) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      f7-5 (SSRS) - f1-2 (O/P) Always Below 1 Ω
      f7-5 (SSRS) or f1-2 (O/P) - Body ground Always 10 kΩ or higher
      f7-1 (SGND) - f1-3 (GND) Always Below 1 Ω
      f7-1 (SGND) or f1-3 (GND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. REPLACE FRONT POWER SEAT SWITCH RH (for Driver Side)


    1. Replace the front seat switch (for Driver Side) with new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  8. CLEAR DTC


    1. Clear the DTCs.

      Click here


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

    NEXT

  9. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Driver Seat > Trouble Codes
      OK
      DTC B2658 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (FRONT POWER SEAT SWITCH [for Driver Side] WAS DEFECTIVE)

    NG

    REPLACE FRONT SEAT ADJUSTER ASSEMBLY (for Driver Side) Click here