SFI SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   VEHICLE BROUGHT TO WORKSHOP

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
2. Click here

   CUSTOMER PROBLEM ANALYSIS

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
3. Click here

   CONNECT GTS TO DLC3*

   Tip:

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

   When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first.

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
4. Click here

   CHECK DTC AND FREEZE FRAME DATA*

   
   

   1. Check for DTCs (See page ) and freeze frame data (Click here).

      Tip:

      Record or print DTCs and freeze frame data if necessary.

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
5. Click here

   CLEAR DTC AND FREEZE FRAME DATA*

   
   

   1. Clear the DTCs and freeze frame data (Click here).

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
6. Click here

   CONDUCT VISUAL INSPECTION

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
7. Click here

   SELECT CHECK MODE DIAGNOSIS*

   
   

   1. Switch the ECM from normal mode to check mode.

      Tip:

      Refer to Check Mode Procedure (Click here).

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
8. Click here

   CONFIRM PROBLEM SYMPTOMS

   
   

   1. Confirm problem symptoms.

      Tip:

      If the engine does not start, first perform the "Check DTC" procedure and "Conduct Basic Inspection" procedure below.

      Result
      Result Proceed to Malfunction does not occur A Malfunction occurs B

   
   
   • AClick here
   • BClick here

     GO TO STEP 10

9. Click here

   SIMULATE SYMPTOMS

   Tip:

   Refer to Symptom Simulation (Click here).

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
10. Click here

    CHECK DTC*

    
    

    1. Check for DTCs.

       Tip:

       Refer to DTC Check / Clear (Click here).

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

    
    
    • AClick here
    • BClick here

      GO TO STEP 12

11. Click here

    REFER TO DTC CHART

    Tip:

    Refer to Diagnostic Trouble Code Chart (Click here).

    Result
    Proceed to NEXT

    
    
    • NEXTClick here
12. Click here

    CONDUCT BASIC INSPECTION

    
    

    1. Conduct basic inspection.

       Tip:

       Refer to Basic Inspection (Click here).

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

    
    
    • AClick here
    • BClick here

      GO TO STEP 17

13. Click here

    REFER TO PROBLEM SYMPTOMS TABLE

    Tip:

    Refer to Problem Symptoms Table (Click here).

    Result
    Result Proceed to Malfunctioning circuit confirmed A Malfunctioning parts confirmed B

    
    
    • AClick here
    • BClick here

      GO TO STEP 17

14. Click here

    CHECK ECM POWER SOURCE CIRCUIT

    
    

    1. Check the ECM power source circuit.

       Tip:

       Refer to ECM Power Source Circuit (Click here).

       Result
       Proceed to NEXT

    
    
    • NEXTClick here
15. Click here

    CONDUCT CIRCUIT INSPECTION

    Result
    Result Proceed to Malfunction not confirmed A Malfunction confirmed B

    
    
    • AClick here
    • BClick here

      GO TO STEP 18

16. Click here

    CHECK FOR INTERMITTENT PROBLEMS

    
    

    1. Check for intermittent problems.

       Tip:

       Refer to Check for Intermittent Problems (Click here).

       Result
       Proceed to NEXT

    
    
    • NEXTClick here
17. Click here

    CONDUCT PARTS INSPECTION

    Result
    Proceed to NEXT

    
    
    • NEXTClick here
18. Click here

    IDENTIFY PROBLEM

    Result
    Proceed to NEXT

    
    
    • NEXTClick here
19. Click here

    ADJUST AND/OR REPAIR

    Result
    Proceed to NEXT

    
    
    • NEXTClick here
20. Click here

    CONDUCT CONFIRMATION TEST

    Result
    Proceed to NEXT

    
    
    • NEXT

      END