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How To Proceed With Troubleshooting

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.

HINT

  1. VEHICLE BROUGHT TO WORKSHOP 
  2. INSPECT BATTERY VOLTAGE 

    Standard voltage: 11 to 14 V 

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

  3. CHECK DTC* 
    1. Check for DTC (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

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

    A:  Go to step  6

    B: Go to Next Step 

  4. PROBLEM SYMPTOMS TABLE 

    Result 

    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  6

    A: Go to Next Step 

  5. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. TERMINALS OF ECU (see TERMINALS OF ECU  )
    2. DATA LIST / ACTIVE TEST (see DATA LIST / ACTIVE TEST  )
  6. REPAIR OR REPLACE 
  7. CONFIRMATION TEST 

    NEXT: END