How To Proceed With Troubleshooting

The intelligent tester can be used at steps  4,  5,  6, and  10.

1. VEHICLE BROUGHT TO WORK SHOP 
2. CUSTOMER PROBLEM ANALYSIS 
3. PROBLEM SYMPTOM CONFIRMATION 
4. DTC CHECK AND CLEAR 
5. DTC CHECK 

   TROUBLE CODE (GO TO STEP 6) 

   NORMAL SYSTEM CODE (GO TO STEP  7)

6. DTC CHART 

   GO TO STEP  10

7. PROBLEM SYMPTOM SIMULATION 

   SYMPTOM DOES NOT OCCUR (GO TO STEP 8) 

   SYMPTOM OCCURS (GO TO STEP  9)

8. SYMPTOM SIMULATION 
9. PROBLEM SYMPTOMS TABLE 
10. CIRCUIT INSPECTION 
11. TERMINAL OF ECM 
12. IDENTIFICATION OF PROBLEM 
13. REPAIR OR REPLACE 
14. CONFIRMATION TEST 

    END