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Home >> Lexus >> 2013 >> CT 200h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Access System (Keyless Entry) (Diagnostic Codes & Symptom Tests) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function) >> Symptom Tests >> Front Passenger Side Door Entry Lock Function does not Operate >> Inspection Procedure
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Inspection Procedure

NOTE:
  • The smart access system with push-button start (for Entry Function) uses a multiplex communication system (LIN communication system) and the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2012 - ] . Troubleshoot the smart access system with push-button start (for Entry Function) after confirming that the communication systems are functioning properly.
  • When using the Techstream with the power 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.

  • Check that there are no electrical key transmitters in the vehicle.
  • Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output. Refer to DTC CHECK / CLEAR [08/2012 - ] .
  • Before replacing the certification ECU (smart key ECU assembly), refer to the smart access system with push-button start (for Entry Function). Refer to PRECAUTION [08/2012 - ] .
  • After repair, confirm DTC not reoccur with performing the "DTC Output Confirmation Operation".
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