SFI SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

VEHICLE BROUGHT TO WORKSHOP

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CUSTOMER PROBLEM ANALYSIS

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CONNECT GTS TO DLC3*

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CHECK DTC AND FREEZE FRAME DATA*

1. Check DTC Click here.

2. Check freeze frame data Click here.

   Tech Tips

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

   
   

   NEXT

CLEAR DTC AND FREEZE FRAME DATA*

1. Clear the DTC Click here.

   
   

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CONDUCT VISUAL INSPECTION

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SET CHECK MODE DIAGNOSIS*

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

   
   

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CONFIRM PROBLEM SYMPTOMS

1. Refer to "Problem Symptoms Table" Click here.

   Tech Tips

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

   Result

   Result	Proceed to
   Malfunction does not occur	A
   Malfunction occurs	B

   
   

   B

   GO TO STEP 10

   A

SIMULATE SYMPTOMS

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CHECK DTC*

1. Check DTC Click here.

   Result

   Result	Proceed to
   Trouble code output	A
   No code output	B

   
   

   B

   GO TO STEP 12

   A

REFER TO DTC CHART

1. Refer to "Diagnostic Trouble Code Chart" Click here.

   
   

   NEXT

   GO TO STEP 14

CONDUCT BASIC INSPECTION

1. Refer to "Basic Inspection" Click here.

   Result

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

   
   

   B

   GO TO STEP 17

   A

REFER TO PROBLEM SYMPTOMS TABLE

1. Refer to "Problem Symptoms Table" Click here.

   Result

   Result	Proceed to
   Malfunctioning circuit confirmed	A
   Malfunctioning parts confirmed	B

   
   

   B

   GO TO STEP 17

   A

CHECK ECM POWER SOURCE CIRCUIT

1. Refer to "ECM Power Source Circuit" Click here.

   
   

   NEXT

CONDUCT CIRCUIT INSPECTION

B

GO TO STEP 18

A

CHECK FOR INTERMITTENT PROBLEMS

1. Refer to "Check for Intermittent Problems" Click here.

   
   

   NEXT

   GO TO STEP 18

CONDUCT PARTS INSPECTION

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IDENTIFY PROBLEM

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ADJUST AND/OR REPAIR

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CONDUCT CONFIRMATION TEST

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