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

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DTC Code DTC Name
B2658 Short in Sensor with Motor Power Supply Circuit
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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 (for driver)


    • Front seat adjuster assembly (for driver)


    • Front seatback frame sub-assembly (for driver)


    • Wire harness or connector


  • for Front Passenger


    • Front power seat switch (for front passenger)


    • Front seat adjuster assembly (for front passenger)


    • Front separate type seatback spring assembly


    • Wire harness or connector
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WIRING DIAGRAM


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  1. A0004XPE55

    for Driver

  2. A0004XPE56

    for Front Passenger

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PROCEDURE


  1. Click here

    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

  2. Click here

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR DRIVER) - SLIDE MOTOR)


    1. Disconnect the X10*1 or W10*2 front power seat switch (for driver) connector.

    2. Disconnect the X1*1 or W1*3, W23*4 slide motor connector.


      • *1: for LHD

      • *2: for RHD

      • *3: for RHD without Climate Control Seat System

      • *4: for RHD with Climate Control Seat System

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

      Standard Resistance
      Table 1. for LHD
      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
      Table 2. for RHD
      Tester Connection Condition Specified Condition
      W10-5 (SSRS) - W1-2*1 Always Below 1 Ω
      W10-1 (SGND) - W1-3*1 Always Below 1 Ω
      W10-5 (SSRS) - W23-2*2 Always Below 1 Ω
      W10-1 (SGND) - W23-3*2 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

      • *1: for RHD without Climate Control Seat System

      • *2: for RHD with Climate Control Seat System


    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  3. Click here

    CHECK FRONT POWER SEAT SWITCH (FOR DRIVER) (SLIDE MOTOR CIRCUIT)


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

      Standard Voltage
      Table 3. for LHD
      Tester Connection Condition Specified Condition
      X1-2 - X1-3 Sliding switch on 4.8 to 5.1 V
      Table 4. for RHD
      Tester Connection Condition Specified Condition
      W1-2 - W1-3*1 Sliding switch on 4.8 to 5.1 V
      W23-2 - W23-3*2 Sliding switch on 4.8 to 5.1 V

      • *1: for RHD without Climate Control Seat System

      • *2: for RHD with Climate Control Seat System


  4. Click here

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR DRIVER) - 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

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. Click here

    CHECK FRONT POWER SEAT SWITCH (FOR DRIVER) (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

  6. Click here

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR DRIVER) - 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

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. Click here

    CHECK FRONT POWER SEAT SWITCH (FOR DRIVER) (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

  8. Click here

    REPLACE FRONT SEAT ADJUSTER ASSEMBLY (FOR DRIVER)


    1. Replace the front seat adjuster assembly (for driver) (Click here).

    2. Clear the DTCs (Click here).

    3. Check for DTCs (Click here).

      OK
      DTC B2658 is not output.

    • OK

      END (FRONT SEAT ADJUSTER ASSEMBLY (FOR DRIVER) WAS DEFECTIVE)

    • NGClick here
  9. Click here

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR DRIVER) - RECLINING MOTOR)


    1. Disconnect the W10 front power seat switch (for driver) 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

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  10. Click here

    CHECK FRONT POWER SEAT SWITCH (FOR DRIVER) (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

  11. Click here

    REPLACE FRONT SEATBACK FRAME SUB-ASSEMBLY (FOR DRIVER)


    1. Replace the front seatback frame sub-assembly (for driver) (Click here).

    2. Clear the DTCs (Click here).

    3. Check for DTCs (Click here).

      OK
      DTC B2658 is not output.

    • OK

      END (FRONT SEATBACK FRAME SUB-ASSEMBLY (FOR DRIVER) WAS DEFECTIVE)

    • NG

      REPLACE FRONT POWER SEAT SWITCH (FOR DRIVER) (Click here)

  12. Click here

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) - SLIDE MOTOR)


    1. Disconnect the W10 front power seat switch (for front passenger) 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

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  13. Click here

    CHECK FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) (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

  14. Click here

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) - 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

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  15. Click here

    CHECK FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) (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

  16. Click here

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) - 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

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  17. Click here

    CHECK FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) (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

  18. Click here

    REPLACE FRONT SEAT ADJUSTER ASSEMBLY (FOR FRONT PASSENGER)


    1. Replace the front seat adjuster assembly (for front passenger) (Click here).

    2. Clear the DTCs (Click here).

    3. Check for DTCs (Click here).

      OK
      DTC B2658 is not output.

    • OK

      END (FRONT SEAT ADJUSTER ASSEMBLY (FOR FRONT PASSENGER) WAS DEFECTIVE)

    • NGClick here
  19. Click here

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) - RECLINING MOTOR)


    1. Disconnect the W10 front power seat switch (for front passenger) 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

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  20. Click here

    CHECK FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) (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

  21. Click here

    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.

    • OK

      END (SEPARATE TYPE FRONT SEATBACK SPRING ASSEMBLY WAS DEFECTIVE)

    • NG

      REPLACE FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) (Click here)