FixVault

How To Proceed With Troubleshooting

HINT:

*: Use Techstream.

  1. VEHICLE BROUGHT TO WORKSHOP 
  2. CUSTOMER PROBLEM ANALYSIS 
  3. CONNECT TECHSTREAM TO DLC3* 

    HINT:

    If the display indicates a communication fault in the tester, inspect the DLC3.

  4. CHECK FOR DTC AND FREEZE FRAME DATA* 

    HINT:

    Record or print DTCs and freeze frame data, if necessary.

  5. CLEAR DTC AND FREEZE FRAME DATA* 
  6. CONDUCT VISUAL INSPECTION 
  7. SET CHECK MODE DIAGNOSIS* 
  8. CONFIRM PROBLEM SYMPTOMS 

    HINT:

    If the engine does not start, first perform the "CHECK DTC" procedures in step  10and "CONDUCT BASIC INSPECTION" procedures in step  12.

    Result 

    RESULT CHART

    Result Proceed to
    Malfunction does not occur A
    Malfunction occurs B

    B:  Go TO STEP  10

    A: Go To Next Step 

  9. SIMULATE SYMPTOMS 
  10. CHECK FOR DTC* 

    Result 

    RESULT CHART

    Result Proceed to
    Trouble code A
    No code B

    B:  Go TO STEP  12

    A: Go To Next Step 

  11. REFER TO DTC CHART 

    NEXT:  Go TO STEP  14

  12. CONDUCT BASIC INSPECTION 

    Result 

    RESULT CHART

    Result Proceed to
    Malfunctioning parts not confirmed A
    Malfunctioning parts confirmed B

    B:  Go TO STEP  17

    A: Go To Next Step 

  13. REFER TO PROBLEM SYMPTOMS TABLE 

    Result 

    RESULT CHART

    Result Proceed to
    Malfunctioning circuit confirmed A
    Malfunctioning parts confirmed B

    B:  Go TO STEP  17

    A: Go To Next Step 

  14. CHECK ECM POWER SOURCE CIRCUIT 
  15. CONDUCT CIRCUIT INSPECTION 

    Result 

    RESULT CHART

    Result Proceed to
    Malfunction not confirmed A
    Malfunction confirmed B

    B:  Go TO STEP  18

    A: Go To Next Step 

  16. CHECK FOR INTERMITTENT PROBLEMS 

    NEXT:  Go TO STEP  18

  17. CONDUCT PARTS INSPECTION 
  18. IDENTIFY PROBLEM 
  19. ADJUST AND/OR REPAIR 
  20. CONDUCT CONFIRMATION TEST 

    NEXT : END