REAR POWER SEAT CONTROL SYSTEM Reclining Motor Circuit

DESCRIPTION

The fold seat control ECU receives switch operation signals from the No. 1 and No. 2 fold seat switches and rear power seat switch and activates the power seat motors. At this time, the Hall IC detects the actuation of the seatback and sends a seatback actuation signal to the fold seat control ECU. The fold seat control ECU uses signals from the Hall IC to detect if an object is caught or if any other abnormal condition has occurred.

WIRING DIAGRAM

B0059KGE02

PROCEDURE


  1. INSPECT REAR SEATBACK FRAME SUB-ASSEMBLY (RECLINING MOTOR)


    1. Remove the rear seatback frame sub-assembly.

      Click here

    2. Inspect the rear seatback frame sub-assembly.

      Click here

      Result
      Result
      OK
      NG

    NG

    REPLACE REAR SEATBACK FLAME SUB-ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - REAR SEATBACK FRAME SUB-ASSEMBLY)


    1. Rear Right Seat:


      1. Disconnect the h4 fold seat control ECU connector.

      2. Disconnect the h1 rear seatback frame sub-assembly connector.

    2. Rear Left Seat:


      1. Disconnect the i4 fold seat control ECU connector.

      2. Disconnect the i2 rear seatback frame sub-assembly connector.

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

      Standard Resistance
      Rear Right Seat
      Tester Connection Condition Specified Condition
      h4-3 (RCL+) - h1-1 Always Below 1 Ω
      h4-3 (RCL+) or h1-1 - Body ground Always 10 kΩ or higher
      h4-7 (RCL-) - h1-2 Always Below 1 Ω
      h4-7 (RCL-) or h1-2 - Body ground Always 10 kΩ or higher
      Rear Left Seat
      Tester Connection Condition Specified Condition
      i4-3 (RCL+) - i2-1 Always Below 1 Ω
      i4-3 (RCL+) or i2-1 - Body ground Always 10 kΩ or higher
      i4-7 (RCL-) - i2-2 Always Below 1 Ω
      i4-7 (RCL-) or i2-2 - Body ground Always 10 kΩ or higher
      Result
      Result
      OK
      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR