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Home >> Lexus >> 2007 >> IS 250 AWD >> Repair and Diagnosis (Single Page) >> Electrical >> Starter >> Starting (4GR-FSE) >> Smart Access System With Push-Button Start >> Power Source Mode does not Change >> Inspection Procedure
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Inspection Procedure

  1. CHECK FOR DTCS 
    1. Delete the DTCs (See DTC CHECK/CLEAR  ).

      HINT:

      After all DTCs are cleared, check if the trouble occurs again 5 seconds after the engine switch is turned on (IG).

    2. Check for DTCs again.

    OK: 

    No DTC is output. 

    NG: GO TO  DIAGNOSTIC TROUBLE CODE TABLE  

    OK: Go To Next Step 

  2. CHECK BASIC FUNCTION 
    1. Check the basic function.
      1. A/T Models: When the key is inside the vehicle and the shift lever position is in P, check that depressing the brake pedal causes the engine switch indicator to turn green.
      2. M/T Models: When the key is inside the vehicle, check that depressing the clutch pedal and brake pedal causes the engine switch indicator to turn green.

    Result 

    BASIC FUNCTION

    Result Proceed to
    Indicator turns green A
    Engine switch indicator circuit is normal but the indicator does not turn green B
    Room oscillator recognizes key but the indicator does not turn green C

    B: GO TO  DOOR OSCILLATOR CIRCUIT 

    C: GO TO  ENGINE SWITCH INDICATOR CIRCUIT  

    A: SYSTEM IS OK