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Home › Lexus › 2012 › IS 250C Standard Trans › Repair and Diagnosis › Engine Mechanical › Starter › Smart Access System With Push-Button Start (For Entry Function) (Diagnostics & Symptom Tests) › SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function) › Symptom Tests › Room Oscillator does not Recognize Key › Inspection Procedure

Inspection Procedure

NOTE:
  • The smart access system with push-button start (for entry function) uses a LIN communication system and BEAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Refer to HOW TO PROCEED WITH TROUBLESHOOTING . Troubleshoot the smart access system with push-button start (for entry function) after confirming that the communication system is functioning properly.
  • When using the Techstream to troubleshoot: Connect the Techstream to the vehicle while the engine switch is off, and turn a courtesy light switch on and off at 1.5-second intervals until communication between the Techstream and vehicle begins.
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