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 Code DTC Detection Condition Trouble Area
B2658 Problem with the voltage supplied to the position control sensor.

  • for Driver


    • Front power seat switch LH


    • Front seat adjuster assembly LH


    • Front seatback frame sub-assembly LH


    • Wire harness or connector


  • for Front Passenger


    • Front power seat switch RH


    • Front seat adjuster assembly RH


    • Front separate type seatback spring assembly


    • Wire harness or connector

WIRING DIAGRAM


  1. for Driver

    A01G7JXE23

  2. for Front Passenger

    A01G7JXE24

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC is not output A
      DTC output from "Driver Seat" B
      DTC output from "Passenger Seat" C

    B

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH LH - SLIDE MOTOR) Click here

    C

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH RH - SLIDE MOTOR) Click here

    A

    USE SIMULATION METHOD TO CHECK Click here

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


    1. Disconnect the X10 front power seat switch LH connector.

    2. Disconnect the X1 slide motor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X10-5 (SSRS) - X1-2 Always Below 1 Ω
      X10-1 (SGND) - X1-3 Always Below 1 Ω
      X10-5 (SSRS) - X10-1 (SGND) Always 10 kΩ or higher
      X10-5 (SSRS) - Body ground Always 10 kΩ or higher
      X10-1 (SGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


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

      Standard Voltage
      Tester Connection Condition Specified Condition
      X1-2 - X1-3 Sliding switch on 4.8 to 5.1 V

    NG

    REPLACE FRONT POWER SEAT SWITCH LH Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH LH - FRONT VERTICAL MOTOR)


    1. Disconnect the X2 front vertical motor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X10-3 (SSFV) - X2-2 Always Below 1 Ω
      X10-1 (SGND) - X2-3 Always Below 1 Ω
      X10-3 (SSFV) - X10-1 (SGND) Always 10 kΩ or higher
      X10-3 (SSFV) - Body ground Always 10 kΩ or higher
      X10-1 (SGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK FRONT POWER SEAT SWITCH LH (FRONT VERTICAL MOTOR CIRCUIT)


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

      Standard Voltage
      Tester Connection Condition Specified Condition
      X2-2 - X2-3 Front vertical switch on 4.8 to 5.1 V

    NG

    REPLACE FRONT POWER SEAT SWITCH LH Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH LH - LIFTER MOTOR)


    1. Disconnect the X3 lifter motor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X10-4 (SSRL) - X3-2 Always Below 1 Ω
      X10-1 (SGND) - X3-3 Always Below 1 Ω
      X10-4 (SSRL) - X10-1 (SGND) Always 10 kΩ or higher
      X10-4 (SSRL) - Body ground Always 10 kΩ or higher
      X10-1 (SGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK FRONT POWER SEAT SWITCH LH (LIFTER MOTOR CIRCUIT)


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

      Standard Voltage
      Tester Connection Condition Specified Condition
      X3-2 - X3-3 Lifter switch on 4.8 to 5.1 V

    NG

    REPLACE FRONT POWER SEAT SWITCH LH Click here

    OK

  8. REPLACE FRONT SEAT ADJUSTER ASSEMBLY LH


    1. Replace the front seat adjuster assembly LH Click here.

    2. Clear the DTCs Click here.

    3. Check for DTCs Click here.

      OK
      DTC B2658 is not output.

    NG

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH LH - RECLINING MOTOR) Click here

    OK

    END (FRONT SEAT ADJUSTER ASSEMBLY LH WAS DEFECTIVE)

  9. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH LH - RECLINING MOTOR)


    1. Disconnect the X10 front power seat switch LH connector.

    2. Disconnect the Z2 reclining motor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X10-11 (SSRR) - Z2-2 Always Below 1 Ω
      X10-1 (SGND) - Z2-3 Always Below 1 Ω
      X10-11 (SSRR) - X10-1 (SGND) Always 10 kΩ or higher
      X10-11 (SSRR) - Body ground Always 10 kΩ or higher
      X10-1 (SGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. CHECK FRONT POWER SEAT SWITCH LH (RECLINING MOTOR CIRCUIT)


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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Z2-2 - Z2-3 Reclining switch on 4.8 to 5.1 V

    NG

    REPLACE FRONT POWER SEAT SWITCH LH Click here

    OK

  11. REPLACE FRONT SEATBACK FRAME SUB-ASSEMBLY LH


    1. Replace the front seatback frame sub-assembly LH Click here.

    2. Clear the DTCs Click here.

    3. Check for DTCs Click here.

      OK
      DTC B2658 is not output.

    NG

    REPLACE FRONT POWER SEAT SWITCH LH Click here

    OK

    END (FRONT SEATBACK FRAME SUB-ASSEMBLY LH WAS DEFECTIVE)

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


    1. Disconnect the W10 front power seat switch RH connector.

    2. Disconnect the W1 slide motor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      W10-5 (SSRS) - W1-2 Always Below 1 Ω
      W10-1 (SGND) - W1-3 Always Below 1 Ω
      W10-5 (SSRS) - W10-1 (SGND) Always 10 kΩ or higher
      W10-5 (SSRS) - Body ground Always 10 kΩ or higher
      W10-1 (SGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  13. CHECK FRONT POWER SEAT SWITCH RH (SLIDE MOTOR CIRCUIT)


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

      Standard Voltage
      Tester Connection Condition Specified Condition
      W1-2 - W1-3 Sliding switch on 4.8 to 5.1 V

    NG

    REPLACE FRONT POWER SEAT SWITCH RH Click here

    OK

  14. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH RH - FRONT VERTICAL MOTOR)


    1. Disconnect the W2 front vertical motor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      W10-3 (SSFV) - W2-2 Always Below 1 Ω
      W10-1 (SGND) - W2-3 Always Below 1 Ω
      W10-3 (SSFV) - W10-1 (SGND) Always 10 kΩ or higher
      W10-3 (SSFV) - Body ground Always 10 kΩ or higher
      W10-1 (SGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. CHECK FRONT POWER SEAT SWITCH RH (FRONT VERTICAL MOTOR CIRCUIT)


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

      Standard Voltage
      Tester Connection Condition Specified Condition
      W2-2 - W2-3 Front vertical switch on 4.8 to 5.1 V

    NG

    REPLACE FRONT POWER SEAT SWITCH RH Click here

    OK

  16. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH RH - LIFTER MOTOR)


    1. Disconnect the W3 lifter motor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      W10-4 (SSRL) - W3-2 Always Below 1 Ω
      W10-1 (SGND) - W3-3 Always Below 1 Ω
      W10-4 (SSRL) - W10-1 (SGND) Always 10 kΩ or higher
      W10-4 (SSRL) - Body ground Always 10 kΩ or higher
      W10-1 (SGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  17. CHECK FRONT POWER SEAT SWITCH RH (LIFTER MOTOR CIRCUIT)


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

      Standard Voltage
      Tester Connection Condition Specified Condition
      W3-2 - W3-3 Lifter switch on 4.8 to 5.1 V

    NG

    REPLACE FRONT POWER SEAT SWITCH RH Click here

    OK

  18. REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH


    1. Replace the front seat adjuster assembly RH Click here.

    2. Clear the DTCs Click here.

    3. Check for DTCs Click here.

      OK
      DTC B2658 is not output.

    NG

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH RH - RECLINING MOTOR) Click here

    OK

    END (FRONT SEAT ADJUSTER ASSEMBLY RH WAS DEFECTIVE)

  19. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH RH - RECLINING MOTOR)


    1. Disconnect the W10 front power seat switch RH connector.

    2. Disconnect the Y2 reclining motor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      W10-11 (SSRR) - Y2-2 Always Below 1 Ω
      W10-1 (SGND) - Y2-3 Always Below 1 Ω
      W10-11 (SSRR) - W10-1 (SGND) Always 10 kΩ or higher
      W10-11 (SSRR) - Body ground Always 10 kΩ or higher
      W10-1 (SGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  20. CHECK FRONT POWER SEAT SWITCH RH (RECLINING MOTOR CIRCUIT)


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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Y2-2 - Y2-3 Reclining switch on 4.8 to 5.1 V

    NG

    REPLACE FRONT POWER SEAT SWITCH RH Click here

    OK

  21. REPLACE SEPARATE TYPE FRONT SEATBACK SPRING ASSEMBLY


    1. Replace the separate type front seatback spring assembly Click here.

    2. Clear the DTCs Click here.

    3. Check for DTCs Click here.

      OK
      DTC B2658 is not output.

    NG

    REPLACE FRONT POWER SEAT SWITCH RH Click here

    OK

    END (SEPARATE TYPE FRONT SEATBACK SPRING ASSEMBLY WAS DEFECTIVE)