Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Precaution

PRECAUTION

PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL

NOTICE:

When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected:

System

See Procedure

Lane Control System

Pre-collision System

Intelligent Clearance Sonar System

Parking Assist Monitor System

Panoramic View Monitor System

Lighting System (w/ Automatic Headlight Beam Level Control System)

Power Door Lock Control System

Power Back Door System (w/ Outside Door Control Switch)

PROCEDURES NECESSARY WHEN ECM OR OTHER PARTS ARE REPLACED

NOTICE:

  • Before replacing the ECM, refer to Registration.

    Click here

  • If any parts are replaced, perform the following procedures as necessary referring to the table below.

    Replaced Part

    Reset Memory*1

    Set Transaxle Compensation Code

    Learning by Driving (Road Test)

    Automatic transaxle assembly

    -*2

    Input*3

    Perform

    Shift solenoid valve SL1 and SL2

    -

    -

    Perform

    • Transmission valve body assembly
    • Shift solenoid valve SL3, SL4 and SL5

    -

    Initialize

    Perform

    ECM

    (If possible, read the transaxle compensation code from the previous ECM)

    Possible

    -

    Input (into the new ECM)*4

    Perform

    Impossible

    -

    Initialize*5

    Perform

    Engine assembly

    Perform

    -

    Perform

HINT:

  • *1: Reset Memory cannot be completed by only disconnecting and reconnecting the cable to the negative (-) battery terminal.
  • *2: When "Set Transaxle Compensation Code" is performed, "Reset Memory" is automatically completed.
  • *3: Set the transaxle compensation code for the new automatic transaxle.
  • *4: Read the transaxle compensation code from the previous ECM, then transfer it to the new ECM.
  • *5: Set the transaxle compensation code of the current automatic transaxle.
  • Registration of the transaxle compensation code.

    Click here

  • Learning by driving (Road Test).

    Click here

  • Reset Memory.

    Click here

HANDLING PRECAUTIONS

CAUTION:

When using compressed air, always aim away from yourself to prevent Automatic Transaxle Fluid (ATF) or kerosene from being sprayed on your face.

NOTICE:

  • The automatic transaxle is composed of precision-made parts. Careful inspection before reassembly is necessary because even a small nick could cause fluid leakage or affect performance.
  • The procedures are organized so that you work on only one component group at a time. This will help avoid confusion with similar-looking parts of different sub-assemblies being on your workbench at the same time.
  • The component groups are inspected and repaired from the converter housing side.
  • Whenever possible, complete the inspection, repair and reassembly before proceeding to the next component group. If a defect is found in a certain component group during reassembly, inspect and repair this group immediately. If a component group cannot be assembled because parts are being ordered, be sure to keep all parts of the group in a separate container while proceeding with disassembly, inspection, repair and reassembly of other component groups.
  • Use of Toyota Genuine ATF WS is recommended.
  • All disassembled parts should be cleaned, and compressed air should be blown through any fluid passages and holes.
  • Dry all parts with compressed air. Never use a piece of cloth.
  • The recommended ATF or kerosene should be used for cleaning.
  • After cleaning, the parts should be arranged in the order they were removed for efficient inspection, repair and reassembly.
  • New brake discs and clutch discs must be soaked in ATF for at least 15 minutes before reassembly.
  • All oil seal rings, clutch discs, clutch plates, rotating parts, and sliding surfaces should be coated with ATF prior to reassembly.
  • All old gaskets and rubber O-rings must be replaced.
  • Do not apply adhesive cement to gaskets or similar parts.
  • Make sure that the ends of snap rings are not aligned with any cutouts. Make sure that snap rings are correctly installed into the grooves.
  • If a worn bushing is to be replaced, the sub-assembly containing the bushing must also be replaced.
  • Check the thrust bearings and races for wear or damage. Replace them if necessary.
  • Use petroleum jelly to keep parts in place.
  • When working with seal packing (FIPG), observe the following:
    • Using a razor blade and a gasket scraper, remove all of the old seal packing (FIPG) from the gasket surface.
    • Thoroughly clean all components to remove any seal packing (FIPG).
    • Clean both sealing surfaces with a non-residue solvent.
    • Parts must be reassembled within 10 minutes of application. Otherwise, the seal packing (FIPG) must be removed and reapplied.
    Definition Of Terms
    DEFINITION OF TERMS Term Definition Monitor description Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and details). Related DTCs Group of di ...

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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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