FRONT POWER SEAT CONTROL SYSTEM, 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 Code DTC Detection Condition Trouble Area
B2658 A problem with the voltage supplied to the position control sensor.

  • Front power seat switch

  • Front seat with adjuster frame assembly LH (for LHD)

  • Front seat with adjuster frame assembly RH (for RHD)

  • Harness or connector

WIRING DIAGRAM

B0019SQE02
for LHD
*a O/P
*b Slide Motor
*c Front Power Seat Switch
*d Front Seat with Adjuster Frame Assembly LH
B0019SQE03
for RHD
*a O/P
*b Slide Motor
*c Front Power Seat Switch
*d Front Seat with Adjuster Frame Assembly RH

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2658 is not output.

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH - SLIDE MOTOR)


    • *1: for LHD

    • *2: for RHD


    1. B001B2QE02

      Disconnect the c63*1 or c58*2 front power seat switch connector.

    2. Disconnect the c64*1 or c59*2 slide motor connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      c63-3 (PVCC) - c64-5 (VCC) Always Below 1 Ω
      c63-2 (SSRS) - c64-2 (O/P) Always Below 1 Ω
      c63-1 (SGND) - c64-6 (GND) Always Below 1 Ω
      c63-3 (PVCC) - Body ground Always 10 kΩ or higher
      c63-2 (SSRS) - Body ground Always 10 kΩ or higher
      c63-1 (SGND) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      c58-3 (PVCC) - c59-5 (VCC) Always Below 1 Ω
      c58-2 (SSRS) - c59-2 (O/P) Always Below 1 Ω
      c58-1 (SGND) - c59-6 (GND) Always Below 1 Ω
      c58-3 (PVCC) - Body ground Always 10 kΩ or higher
      c58-2 (SSRS) - Body ground Always 10 kΩ or higher
      c58-1 (SGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. B001A0PE01

      Disconnect the c64*1 or c59*2 slide motor connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Voltage
      for LHD
      Tester Connection Switch Condition Specified Condition
      c64-5 (VCC) - c64-6 (GND) Sliding switch on 5.5 to 6.5 V
      for RHD
      Tester Connection Switch Condition Specified Condition
      c59-5 (VCC) - c59-6 (GND) Sliding switch on 5.5 to 6.5 V

    NG

    REPLACE FRONT POWER SEAT SWITCH Click here

    OK

  4. CHECK FRONT POWER SEAT SWITCH


    1. Clear the DTCs Click here.

    2. Temporarily replace the front power seat switch with a new or normally functioning one Click here.

    3. Check for DTCs Click here.

      OK
      DTC B2658 is not output.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    A

    END (FRONT POWER SEAT SWITCH WAS DEFECTIVE)

    B

    REPLACE FRONT SEAT WITH ADJUSTER FRAME ASSEMBLY LH Click here

    C

    REPLACE FRONT SEAT WITH ADJUSTER FRAME ASSEMBLY RH Click here