How To Proceed With Troubleshooting

Perform troubleshooting according to the following flowchart.

HINT:

• For further details, see the article given.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CHECK DTC AND FREEZE FRAME DATA* 
   1. Record DTCs and freeze frame data.
3. CLEAR DTC AND FREEZE FRAME DATA* 
4. PROBLEM SYMPTOM CONFIRMATION 

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   Symptom does not occur	A
   Symptom occur	B

   B:  GO TO STEP  6

   A: Go to next step 

5. SYMPTOM SIMULATION 
6. CHECK DTC* 
   1. Check for DTC.
   2. Delete the DTC.
   3. Recheck for DTC.

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed to
      DTC does not reoccur	A
      DTC reoccurs	B

      HINT:

      • Refer to the diagnostic trouble code chart if any DTCs are output.
      • If any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first (see HOW TO PROCEED WITH TROUBLESHOOTING ).
      • If communication to the power steering ECU assembly is not established through the Techstream, inspect terminals SIL of the DLC3 and power steering ECU assembly, and inspect the IG circuit of the power steering ECU.

   B:  GO TO STEP  8

   A: Go to next step 

7. PROBLEM SYMPTOMS TABLE 
8. DTC CHART 
9. CIRCUIT INSPECTION 
10. IDENTIFICATION OF PROBLEM 
11. REPAIR OR REPLACE 
12. CONFIRMATION TEST 

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