REAR POWER SEAT CONTROL SYSTEM Rear Power Seat Switch Circuit

DESCRIPTION

When the rear power seat switch is operated, a recline signal is sent to the fold seat control ECU. The ECU activates the power seat motor based on the signal from the rear power seat switch.

WIRING DIAGRAM

A01HE3YE02

PROCEDURE


  1. INSPECT REAR POWER SEAT SWITCH


    1. Remove the rear power seat switch.

      Click here

    2. Inspect the rear power seat switch.

      Click here

      Result
      Result
      OK
      NG

    NG

    REPLACE REAR POWER SEAT SWITCH Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (REAR POWER SEAT SWITCH - FOLD SEAT CONTROL ECU AND BODY GROUND)


    1. Rear Right Seat:


      1. Disconnect the P8 rear power seat switch connector.

      2. Disconnect the h3 fold seat control ECU connector.

    2. Rear Left Seat:


      1. Disconnect the Q20 rear power seat switch connector.

      2. Disconnect the i3 fold seat control ECU connector.

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

      Standard Resistance
      Rear Right Seat
      Tester Connection Condition Specified Condition
      P8-3 (FLDR) - h3-12 (RCLF) Always Below 1 Ω
      P8-3 (FLDR) or h3-12 (RCLF) - Body ground Always 10 kΩ or higher
      P8-2 (RTNR) - h3-7 (RCLR) Always Below 1 Ω
      P8-2 (RTNR) or h3-7 (RCLR) - Body ground Always 10 kΩ or higher
      P8-7 (E) - Body ground Always Below 1 Ω
      Rear Left Seat
      Tester Connection Condition Specified Condition
      Q20-2 (FLDL) - i3-12 (RCLF) Always Below 1 Ω
      Q20-2 (FLDL) or i3-12 (RCLF) - Body ground Always 10 kΩ or higher
      Q20-3 (RTNL) - i3-7 (RCLR) Always Below 1 Ω
      Q20-3 (RTNL) or i3-7 (RCLR) - Body ground Always 10 kΩ or higher
      Q20-7 (E) - Body ground Always Below 1 Ω
      Result
      Result
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR