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Home >> Lexus >> 2011 >> RX 450h 3.5 C >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 250 (Smart Access System With Push-Button Start (For Entry Function) (Diagnostic Codes & Symptom Tests)) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function) >> Symptom Tests >> Room Oscillator does not Recognize Key >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2011 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • The smart access system with push-button start (for entry function) uses a multiplex communication system (LIN communication system) and CAN 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 with the engine switch off to troubleshoot: Connect the Techstream to the DLC3, 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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