LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2008 >> SC 430 >> Repair and Diagnosis >> Body & Frame >> Seats >> Seat >> Front Power Seat Control System >> Data List / Active Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Data List / Active Test

  1. READ DATA LIST 

    HINT:

    Using the Techstream DATA LIST allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to save time.

    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch ON.
    3. Read the DATA LIST.

      Driver Seat, Passenger Seat 

      DATA LIST - DRIVER SEAT, PASSENGER SEAT

      Item Measurement Item/ Range (Display) Normal Condition Diagnostic Note
      Reclining Rear Reclining switch signal (Rearward)/ON or OFF ON: Reclining switch (Rearward) is ON
      OFF: Reclining switch (Rearward) is OFF
      -
      Reclining Front Reclining switch signal (Forward)/ON or OFF ON: Reclining switch (Forward) is ON
      OFF: Reclining switch (Forward) is OFF
      -
      Front Vehicle Down Front vertical switch signal (Downward)/ON or OFF ON: Front vertical switch (Downward) is ON
      OFF: Front vertical switch (Downward) is OFF
      -
      Front Vehicle Up Front vertical switch signal (Upward)/ON or OFF ON: Front vertical switch (Upward) is ON
      OFF: Front vertical switch (Upward) is OFF
      -
      Lifter Switch Down Lifter switch signal (Downward)/ON or OFF ON: Lifter switch (Downward) is ON
      OFF: Lifter switch (Downward) is OFF
      -
      Lifter Switch Up Lifter switch signal (Upward)/ON or OFF ON: Lifter switch (Upward) is ON
      OFF: Lifter switch (Upward) is OFF
      -
      Slide Rear Sliding switch signal (Rearward)/ ON or OFF ON: Sliding switch (Rearward) is ON
      OFF: Sliding switch (Rearward) is OFF
      -
      Slide Front Sliding switch signal (Forward)/ ON or OFF ON: Sliding switch (Forward) is ON
      OFF: Sliding switch (Forward) is OFF
      -
      Power Voltage Power supply for driver seat ECU & switch/ MIN: 0 V, MAX: 19.89 V Within range from 11 to 14 V -
      Motor Status Motor status signal/ STANDBY, MOVING or LOCK STANDBY: Motor is idle
      MOVING: Motor is moving
      LOCK: Motor is locked
      -
      Vehicle Speed Vehicle speed/ MIN: 0 km/h MAX: 255 km/h Actual vehicle speed -
      Ignition Switch Ignition switch status/ ON or OFF ON: Ignition switch is ON
      OFF: Ignition switch is OFF
      -
      Key Unlock Switch Key unlock warning switch signal/ ON or OFF ON: Key is in ignition key cylinder
      OFF: Key is not in ignition key cylinder
      -
      D-Door Courtesy Door courtesy switch signal/ ON or OFF ON; Driver side door is open
      OFF: Driver side door is closed
      -
      P Switch Shift lever position P signal/ ON or OFF ON: Shift lever in P position
      OFF: Shift lever in any position except P
      -
      N Switch Shift lever position N signal/ ON or OFF ON: Shift lever in N position
      OFF: Shift lever in any position except N
      -
      M2 Switch Seat memory switch M2 signal/ ON or OFF ON: Seat memory switch M2 is ON
      OFF: Seat memory switch M2 is OFF
      -
      M1 Switch Seat memory switch M1 signal/ ON or OFF ON: Seat memory switch M1 is ON
      OFF: Seat memory switch M1 is OFF
      -
      SET Switch Seat memory set switch signal/ ON or OFF ON: Memory set switch is ON
      OFF: Memory set switch is OFF
      -
      SLIDE POS INI Slide position initial flag signal/ ON or OFF ON: Slide position initial flag is ON
      OFF: Slide position initial flag is OFF
      -
      RECLIN POS INI Reclining position initial flag signal/ ON or OFF ON: Reclining position initial flag is ON
      OFF: Reclining position initial flag is OFF
      -
      Slide Position Seat sliding position/ MIN: -4096, MAX: 4096 Within range from -4096 to 4096 -
      Reclining Position Seatback position/ MIN: -4096, MAX: 4096 Within range from -4096 to 4096 -
      Front Vehicle Position Seat front vertical position/ MIN: -4096, MAX: 4096 Within range from -4096 to 4096 -
      Lifter Position Seat lifter position/ MIN: -4096, MAX: 4096 Within range from -4096 to 4096 -
      Memory No1 Driving position memorized with seat memory switch M1/ MEM or NOT MEM MEM: Memorized
      NOT MEM: Not memorized
      -
      Memory No2 Driving position memorized with seat memory switch M2/ MEM or NOT MEM MEM: Memorized
      NOT MEM: Not memorized
      -
      Seat Memory No1 Seat position memorized with seat memory switch M1/ MEM or NOT MEM MEM: Memorized
      NOT MEM: Not memorized
      -
      Seat Memory No2 Seat position memorized with seat memory switch M2/ MEM or NOT MEM MEM: Memorized
      NOT MEM: Not memorized
      -
      Slide Pos Mem No1 Seat sliding position memorized with seat memory switch M1/ MIN: -4096, MAX: 4096 Within range from -4096 to 4096 -
      Reclining Pos Mem No1 Seatback position memorized with seat memory switch M1/ MIN: -4096, MAX: 4096 Within range from -4096 to 4096 -
      Front Vrtcl Pos Mem No1 Front vertical position memorized with seat memory switch M1/ MIN: -4096, MAX: 4096 Within range from -4096 to 4096 -
      Lifer Pos Mem No1 Lifter position memorized with seat memory switch M1/ MIN: -4096, MAX: 4096 Within range from -4096 to 4096 -
      Slide Pos Mem No1 Seat sliding position memorized with seat memory switch M2/ MIN: -4096, MAX: 4096 Within range from -4096 to 4096 -
      Reclining Pos Mem No2 Seatback position memorized with seat memory switch M2/ MIN: -4096, MAX: 4096 Within range from -4096 to 4096 -
      Frnt Vrtol Pos Mem No2 Front vertical position memorized with seat memory switch M2/ MIN: -4096, MAX: 4096 Within range from -4096 to 4096 -
      Lifer Pos Mem No2 Lifter position memorized with seat memory switch M2/ MIN: -4096, MAX: 4096 Within range from -4096 to 4096 -
  2. PERFORM ACTIVE TEST 

    HINT:

    Performing the Techstream ACTIVE TEST allows relay, VSV, actuator and other items to be operated without removing any parts. Performing the ACTIVE TEST early in troubleshooting is one way to save time.

    The DATA LIST can be displayed during the ACTIVE TEST.

    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch ON.
    3. Perform the ACTIVE TEST.

      Driver Seat, Passenger Seat 

      ACTIVE TEST - DRIVER SEAT, PASSENGER SEAT

      Tester Display Test Part Control Range
      Seat Reclining Seat reclining operation Front / Rear
      Front Vertical Operation Seat front vertical operation Up / Down
      Lifter Operation Seat lifter operation Up / Down
      Seat Slide Operation Seat sliding operation Front / Rear