2004 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

Data List/Active Test

  1. DATA LIST 

    HINT:

    Using the hand-held tester DATA LIST allows switch, sensor, actuator and other item value to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to shorten labor time.

    1. Connect the hand-held tester (with CAN VIM) to the DLC3.
    2. Turn the engine switch ON.
    3. Read the DATA LIST according to the display on the tester.

    Driver door ECU: (Switch condition) 

    Fig 1: Driver Door ECU (Switch Condition) - Data List
    G01442893Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Door ECU (Passenger, Rear LH, Rear RH): (Switch condition) 

    Fig 2: Door ECU (Passenger, Rear LH, Rear RH) (Switch Condition) - Data List
    G01442894Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Door ECU (All doors), Glass position) 

    Fig 3: Door ECU (All Doors, Glass Position) - Data List
    G01442895Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. ACTIVE TEST 
    NOTE: is test causes vehicle parts to move. Please watch your hands.

    HINT:

    Performing the hand-held tester 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 shorten labor time. The DATA LIST can be displayed during the ACTIVE TEST.

    1. Connect the hand-held tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
    2. Turn the ignition switch ON.
    3. Performing the ACTIVE TEST according to the display on the tester.

    Door ECU (All doors): 

    Fig 4: Door ECU (All Doors) - Active Test
    G01442896Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.