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Home >> Lexus >> 2006 >> GS 430 >> Repair and Diagnosis >> Electrical >> Starter >> Starting (3UZ-FE) >> Smart Access System With Push-Button Start >> How To Proceed With Troubleshooting

How To Proceed With Troubleshooting

HINT:

  1. VEHICLE BROUGHT TO WORKSHOP 

    NEXT 

  2. INSPECT BATTERY VOLTAGE 

    Standard voltage: 

    11 to 14 V 

    If the voltage is below 11 V, recharge or replace the battery before proceeding.

    NEXT 

  3. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)* 
    1. Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally.

      Result 

      MULTIPLEX COMMUNICATION SYSTEM RESULT CHART

      Result Proceed to
      MPX DTC is not output A
      MPX DTC is output B

    B : GO TO MULTIPLEX COMMUNICATION SYSTEM 

    A : GO TO NEXT STEP. 

  4. CHECK FOR DTC* 
    1. Check for DTC and note any codes that are output.
    2. Delete DTC.
    3. Recheck DTC.

      Result 

      DTC RESULT CHART

      Result Proceed to
      DTC does not reoccur A
      DTC reoccurs B

    B : GO TO DIAGNOSTIC TROUBLE CODE CHART 

    A : GO TO NEXT STEP. 

  5. PROBLEM SYMPTOMS TABLE 

    Result 

    PROBLEM SYMPTOMS RESULT CHART

    Result Proceed to
    Fault is not listed in problem symptoms table A
    Fault is listed in problem symptoms table B

    B : Go to step   7 

    A : GO TO NEXT STEP. 

  6. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. TERMINALS OF ECU 
    2. DATA LIST / ACTIVE TEST 

    NEXT 

  7. REPAIR OR REPLACE 

    NEXT 

  8. CONFIRMATION TEST 

    NEXT : END