How To Proceed With Troubleshooting

HINT:

The hand-held tester is used in steps 3, 4, 5, 7 and 10.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS (See  CUSTOMER PROBLEM ANALYSIS CHECK  ) 
3. CONNECT HAND-HELD TESTER TO DLC3 

   HINT:

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

4. CHECK DTC AND FREEZE FRAME DATA (See  DTC CHECK/CLEAR  ) 

   HINT:

   Record or print DTC and freeze frame data, if needed.

5. CLEAR DTC AND FREEZE FRAME DATA (See  DTC CHECK/CLEAR  ) 
6. VISUAL INSPECTION 
7. SETTING CHECK (TEST) MODE DIAGNOSIS (See  CHECK MODE PROCEDURE  ) 
8. PROBLEM SYMPTOM CONFIRMATION 

   HINT:

   If the engine does not start, perform steps 10 and 12 first.

   PROBLEM SYMPTOM CONFIRMATION
   
   

   Malfunction does not occur	A
   Malfunction occurs	B

   1. B: Go to step   10 
   2. A: Go to next step. 
9. SYMPTOM SIMULATION 
10. DTC CHECK (See  DTC CHECK/CLEAR  ) 
    SYMPTOM SIMULATION
    
    

    Malfunction code	A
    No code	B

    1. B: Go to step   12 
    2. A: Go to next step. 
11. DTC CHART (See  DIAGNOSTIC TROUBLE CODE CHART  ) 
    1. Go to step   14 
12. BASIC INSPECTION (See  BASIC INSPECTION  ) 
    DTC CHART
    
    

    Wrong parts not confirmed	A
    Wrong parts confirmed	B

    1. B: Go to step   17 
    2. A: Go to next step. 
13. PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE  ) 
    PROBLEM SYMPTOMS
    
    

    Wrong circuit confirmed	A
    Wrong parts confirmed	B

    1. B: Go to step   17 
    2. A: Go to next step. 
14. CHECK ECM POWER SOURCE CIRCUIT (See  ECM POWER SOURCE CIRCUIT  ) 
15. CIRCUIT INSPECTION 
    CIRCUIT INSPECTION
    
    

    Malfunction not confirmed	A
    Malfunction confirmed	B

    1. B: Go to step   18 
    2. A: Go to next step. 
16. CHECK FOR INTERMITTENT PROBLEMS (See  CHECK FOR INTERMITTENT PROBLEMS  ) 
    1. Go to step   18 
17. PARTS INSPECTION 
18. IDENTIFICATION OF PROBLEM 
19. ADJUSTMENT, REPAIR 
20. CONFIRMATION TEST 
    1. END