FRONT POWER SEAT CONTROL SYSTEM, Diagnostic DTC:B2650

DTC Code DTC Name
B2650 Slide Sensor Malfunction

DESCRIPTION

When the front power seat switch does not receive a sensor signal despite forward or backward movement of the seat by power seat motor operation, this DTC is stored.

DTC Code DTC Detection Condition Trouble Area
B2650 The forward and backward lock detection position of the sensor is the same.

  • 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

A01ERFZE02
A01ERFZE03

INSPECTION PROCEDURE

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (POWER SEAT MOTOR FUNCTION)


    1. Select the Active Test, use the intelligent tester to generate a control command, and then check the power seat motor function Click here.

      Driver Seat
      Tester Display Test Part Control Range Diagnostic Note
      Seat Slide Operation Seat sliding operation Front / OFF / Rear -
      OK
      Motor operates normally.

    NG

    INSPECT FRONT SEAT WITH ADJUSTER FRAME ASSEMBLY (SLIDE MOTOR) Click here

    OK

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


    1. A01EMVIE26

      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
      c64-2 (O/P) - c64-6 (GND) Sliding switch on 4.8 to 5.1 V
      for RHD
      Tester Connection Switch Condition Specified Condition
      c59-2 (O/P) - c59-6 (GND) Sliding switch on 4.8 to 5.1 V

    NG

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

    OK

  3. CHECK FRONT SEAT WITH ADJUSTER FRAME ASSEMBLY (SLIDE MOTOR)


    1. A01ERD1E04

      Connect 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
      c64-2 (O/P) - Body ground Sliding switch on 4.5 to 4.8 V
      for RHD
      Tester Connection Switch Condition Specified Condition
      c59-2 (O/P) - Body ground Sliding switch on 4.5 to 4.8 V
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE FRONT SEAT WITH ADJUSTER FRAME ASSEMBLY LH Click here

    C

    REPLACE FRONT SEAT WITH ADJUSTER FRAME ASSEMBLY RH Click here

    A

    REPLACE FRONT POWER SEAT SWITCH Click here

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


    • *1: for LHD

    • *2: for RHD


    1. A01EQANE03

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE FRONT POWER SEAT SWITCH Click here

  5. INSPECT FRONT SEAT WITH ADJUSTER FRAME ASSEMBLY (SLIDE MOTOR)


    1. A01EQH0E42

      Remove the front seat with adjuster frame assembly (slide motor) Click here.

    2. Check if the seat cushion spring moves smoothly when the battery is connected to the slide motor connector terminals.

      OK
      for LHD
      Measurement Condition Specified Condition

      Battery positive (+) → 3 (FWD)

      Battery negative (-) → 4 (BACK)

      		 Seat cushion spring moves forward

      Battery positive (+) → 4 (BACK)

      Battery negative (-) → 3 (FWD)

      		 Seat cushion spring moves backward
      for RHD
      Measurement Condition Specified Condition

      Battery positive (+) → 4 (FWD)

      Battery negative (-) → 3 (BACK)

      		 Seat cushion spring moves forward

      Battery positive (+) → 3 (BACK)

      Battery negative (-) → 4 (FWD)

      		 Seat cushion spring moves backward
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE FRONT SEAT WITH ADJUSTER FRAME ASSEMBLY LH Click here

    C

    REPLACE FRONT SEAT WITH ADJUSTER FRAME ASSEMBLY RH Click here

    A

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


    • *1: for LHD

    • *2: for RHD


    1. A01EQKFE02

      Disconnect the c62*1 or c57*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
      c62-2 (SLD+) - c64-3 (FWD) Always Below 1 Ω
      c62-4 (SLD-) - c64-4 (BACK) Always Below 1 Ω
      c62-2 (SLD+) - Body ground Always 10 kΩ or higher
      c62-4 (SLD-) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      c57-2 (SLD+) - c59-4 (FWD) Always Below 1 Ω
      c57-4 (SLD-) - c59-3 (BACK) Always Below 1 Ω
      c57-2 (SLD+) - Body ground Always 10 kΩ or higher
      c57-4 (SLD-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE FRONT POWER SEAT SWITCH Click here