2009 Lexus IS FFACTORY OEM SERVICE PROCEDURE

System Outline

The CAN has two lines which operate as a pair and which communicate using operating voltage. The CAN has excellent data speed and error detecting capacity. It consists of vehicle control systems such as the network gateway ECU, distance control ECU assembly, DLC3, ECM, transmission control ECU assembly, skid control ECU assembly, power steering ECU assembly, steering sensor, center airbag sensor assembly, seat belt control ECU and yaw rate sensor. The network gateway ECU has communication circuits which correspond to different types of communication data. Different types of communication data can then be shared among communication parts after it goes through network gateway ECU.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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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.

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