FRONT POWER SEAT CONTROL SYSTEM(w/ Memory), Diagnostic DTC:B2650

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DESCRIPTION

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

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WIRING DIAGRAM

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1. 

   Table 1.

   *a	Slide Motor
   *b	Front Seat Adjuster Assembly LH
   *c	Front Power Seat Switch LH

   for Driver

2. 

   Table 2.

   *a	Slide Motor
   *b	Front Seat Adjuster Assembly RH
   *c	Front Power Seat Switch RH

   for Front Passenger

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PROCEDURE

1. Click here

   CHECK FOR DTC

   
   

   1. 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

   
   
   • A

     USE SIMULATION METHOD TO CHECK (Click here)

   • BClick here
   • CClick here
2. Click here

   PERFORM ACTIVE TEST USING GTS (SLIDE MOTOR)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the power switch on (IG).

   3. Turn the GTS on.

   4. Enter the following menus: Body Electrical / Driver Seat / Active Test.

   5. Perform the Active Test according to the display on the GTS.

      Table 3. Driver Seat

      Tester Display	Test Part	Control Range	Diagnostic Note
      Seat Slide Operation	Seat slide operation	OFF/Front/Rear	-

      OK
      Motor operates normally.

   
   
   • OKClick here
   • NGClick here
3. Click here

   CHECK FRONT POWER SEAT SWITCH LH (SLIDE MOTOR CIRCUIT)

   
   

   1. Disconnect the X1 slide motor connector.

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

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

   
   
   • OKClick here
   • NGClick here
4. Click here

   CHECK SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY LH)

   
   
   1. 

      Reconnect the X1 slide motor connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition X1-2 - Body ground Slide switch on 4.5 to 4.8 V

      Table 4. Text in Illustration

      *a	Component with harness connected (Slide Motor (Front Seat Adjuster Assembly LH))

   
   
   • OK

     REPLACE FRONT POWER SEAT SWITCH LH (Click here)

   • NG

     REPLACE SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY LH) (Click here)

5. Click here

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

   
   

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

   2. 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) - Body ground Always 10 kΩ or higher X10-1 (SGND) - Body ground Always 10 kΩ or higher

   
   
   • OK

     REPLACE FRONT POWER SEAT SWITCH LH (Click here)

   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

6. Click here

   INSPECT SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY LH)

   
   
   1. 

      Disconnect the X1 slide motor connector.

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

      OK
      Condition Operational Direction Auxiliary battery positive (+) → Terminal 4 Auxiliary battery negative (-) → Terminal 1 Seat cushion moves forward Auxiliary battery positive (+) → Terminal 1 Auxiliary battery negative (-) → Terminal 4 Seat cushion moves backward

      Table 5. Text in Illustration

      *a	Component without harness connected (Slide Motor (Front Seat Adjuster Assembly LH))

   
   
   • OKClick here
   • NG

     REPLACE SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY LH) (Click here)

7. Click here

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

   
   

   1. Disconnect the X9 front power seat switch LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition X9-3 (SLD+) - X1-4 Always Below 1 Ω X9-4 (SLD-) - X1-1 Always Below 1 Ω X9-3 (SLD+) - Body ground Always 10 kΩ or higher X9-4 (SLD-) - Body ground Always 10 kΩ or higher

   
   
   • OK

     REPLACE FRONT POWER SEAT SWITCH LH (Click here)

   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

8. Click here

   PERFORM ACTIVE TEST USING GTS (SLIDE MOTOR)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the power switch on (IG).

   3. Turn the GTS on.

   4. Enter the following menus: Body Electrical / Passenger Seat / Active Test.

   5. Perform the Active Test according to the display on the GTS.

      Table 6. Passenger Seat

      Tester Display	Test Part	Control Range	Diagnostic Note
      Seat Slide Operation	Seat slide operation	OFF/Front/Rear	-

      OK
      Motor operates normally.

   
   
   • OKClick here
   • NGClick here
9. Click here

   CHECK FRONT POWER SEAT SWITCH RH (SLIDE MOTOR CIRCUIT)

   
   

   1. Disconnect the W1 slide motor connector.

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

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

   
   
   • OKClick here
   • NGClick here
10. Click here

    CHECK SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY RH)

    
    
    1. 

       Reconnect the W1 slide motor connector.

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

       Standard Voltage
       Tester Connection Condition Specified Condition W1-2 - Body ground Slide switch on 4.5 to 4.8 V

       Table 7. Text in Illustration

       *a	Component with harness connected (Slide Motor (Front Seat Adjuster Assembly RH))

    
    
    • OK

      REPLACE FRONT POWER SEAT SWITCH RH (Click here)

    • NG

      REPLACE SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY RH) (Click here)

11. Click here

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

    
    

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

    2. 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) - Body ground Always 10 kΩ or higher W10-1 (SGND) - Body ground Always 10 kΩ or higher

    
    
    • OK

      REPLACE FRONT POWER SEAT SWITCH RH (Click here)

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

12. Click here

    INSPECT SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY RH)

    
    
    1. 

       Disconnect the W1 slide motor connector.

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

       OK
       Condition Operational Direction Auxiliary battery positive (+) → Terminal 4 Auxiliary battery negative (-) → Terminal 1 Seat cushion moves forward Auxiliary battery positive (+) → Terminal 1 Auxiliary battery negative (-) → Terminal 4 Seat cushion moves backward

       Table 8. Text in Illustration

       *a	Component without harness connected (Slide Motor (Front Seat Adjuster Assembly RH))

    
    
    • OKClick here
    • NG

      REPLACE SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY RH) (Click here)

13. Click here

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

    
    

    1. Disconnect the W9 front power seat switch RH connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition W9-3 (SLD+) - W1-4 Always Below 1 Ω W9-4 (SLD-) - W1-1 Always Below 1 Ω W9-3 (SLD+) - Body ground Always 10 kΩ or higher W9-4 (SLD-) - Body ground Always 10 kΩ or higher

    
    
    • OK

      REPLACE FRONT POWER SEAT SWITCH RH (Click here)

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR