2012 Lexus IS 250C Automatic TransFACTORY OEM SERVICE PROCEDURE

Inspection Procedure

NOTE:

When replacing the yaw rate and acceleration sensor, perform zero point calibration. Refer to CALIBRATION .

HINT:Β 

When DTC U0123, U0124 and/or U0126 is output together with DTC C1419 and/or C1435, inspect and repair the trouble areas indicated by DTC U0123, U0124 and/or U0126 first. Refer to DTC U0073: Control Module Communication Bus OFF; DTC U0100: Lost Communication with ECM / PCM; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0124: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor ModuleΒ .

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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