FRONT POWER SEAT CONTROL SYSTEM Front Power Seat does not Operate with Front Power Seat Switch

DTC Code DTC Name
Front Power Seat does not Operate with Front Power Seat Switch

DESCRIPTION

When a signal is input into the front power seat switch (seat ECU), the ECU manages the signals received from the front power seat switch and operates each motor. When 2 or more signals are input, the motors only operate when the signals are from the slide switch and reclining switch.

WIRING DIAGRAM

B248460E02

CAUTION / NOTICE / HINT

Tip:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH - BATTERY AND BODY GROUND)

    B238303C01

    *a

    Front view of wire harness connector

    (to Front Power Seat Switch LH)

    1. Disconnect the b4 and b5 switch connectors.

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      b4-7 (+B1) - Body ground

      Always

      11 to 14 V

      b5-12 (SYSB) - Body ground

      Always

      11 to 14 V

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      b4-2 (GND1) - Body ground

      Always

      Below 1 Ω

    Result

    Result

    OK

    NG
    OK

    REPLACE FRONT POWER SEAT SWITCH LH

    Click hereClick hereClick here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR