How To Proceed With Troubleshooting

The hand-held tester can be used in steps 4, 6, 8 and 9.

1. VEHICLE BROUGHT TO WORKSHOP 

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2. CUSTOMER PROBLEM ANALYSIS (See  CUSTOMER PROBLEM ANALYSIS CHECK  ) 

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3. WARNING LIGHT CHECK (See  DIAGNOSIS SYSTEM   ) 

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4. DTCs CHECK (Present and Past DTCs) (See  DTC CHECK/CLEAR  ) 

   DTCs ARE OUTPUT (INCLUDING NORMAL SYSTEM CODE): Go to step 5 

   DTCs ARE NOT OUTPUT: (See  PROBLEM SYMPTOMS TABLE  ) 

5. See  DIAGNOSTIC TROUBLE CODE CHART  

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6. CIRCUIT INSPECTION (See  CIRCUIT DESCRIPTION   TO  CIRCUIT DESCRIPTION  ) 

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7. REPAIR 

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8. CLEAR DTCs (Present and Past DTCs) (See  DTC CHECK/CLEAR  ) 

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9. DTCs CHECK (Present and Past DTCs) (See  DTC CHECK/CLEAR  ) 

   DTCs ARE NOT OUTPUT: Go to step 10 

   DTCs ARE OUTPUT: Go to step 5 

10. SYMPTOM SIMULATION (See  HOW TO PROCEED WITH TROUBLESHOOTING  ) 

    WARNING LIGHT REMAINS OFF: Go to step 11 

    WARNING LIGHT IS ON: Go to step 5 

11. CONFIRMATION TEST 

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