2010 Lexus IS FFACTORY OEM SERVICE PROCEDURE

Automatic Transmission System: Precaution: Precaution

NOTE:
  • If any parts are replaced, perform the following as necessary referring to the table below.
    Replaced Part Reset Memory*1 Set Transmission Compensation Code Learning by Driving
    (Road Test)
    Automatic transmission assembly -*2 Perform*3 Perform
    • Valve body assembly
    • Shift solenoid valve SL1, 2, 3, 4 and 5
    - - Perform
    TCM
    (If possible, read the transmission compensation code from the previous TCM)
    Possible - Perform*4 Perform
    Impossible - Perform*5 Perform
    • Engine assembly
    • ECM
    Perform - Perform

HINT:Β 

  • *1: Reset Memory cannot be completed by only disconnecting and reconnecting the cable to the negative (-) battery terminal.
  • *2: When "Set Transmission Compensation Code" is performed, "Reset Memory" is automatically completed.
  • *3: Set the compensation code for the new automatic transmission.
  • *4: Read the compensation code from the previous TCM, then transfer it to the new TCM.
  • *5: Set the transmission compensation code of the current automatic transmission.
  • Registration of the transmission compensation code. Refer to REGISTRATIONΒ .
  • Learning by driving (Road Test). Refer to INITIALIZATIONΒ .
  • Reset Memory. Refer to INITIALIZATIONΒ .
NOTE:

Reset Memory cannot be completed by only disconnecting and reconnecting the cable to the negative (-) battery terminal.

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:

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