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Home >> Lexus >> 2016 >> GS 450h Base >> Repair and Diagnosis >> Electrical >> Starter >> Smart Access System With Push-Button Start (For Start Function) (Diagnostic Codes & Symptom Tests) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function) >> Symptom Tests >> Power Source Mode does not Change to ON (IG) [09/2014 - 10/2015] >> Caution / Notice / Hint
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Caution / Notice / Hint

NOTE:
  • 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.

  • The smart access system with push-button start (for Start 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 [09/2014 - ] ).Troubleshoot the smart access system with push-button start (for Start Function) after confirming that the communication systems are functioning properly.
  • Make sure that no DTCs are output. If any DTCs are output, proceed to the Diagnostic Trouble Code Chart (Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2014 - 10/2015] ).
  • If the smart access system with push-button start is disabled through the customize function, enable the system before performing troubleshooting (Refer to CUSTOMIZE PARAMETERS [09/2014 - ] ).
  • Before replacing the power management control ECU or main body ECU (multiplex network body ECU), refer to the smart access system with push-button start (for Start Function) precaution (PRECAUTION [09/2014 - ] ).
  • Inspect the fuses of circuits related to this system before performing the following inspection procedure.
  • After completing repairs, confirm that the problem does not occur.
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