How To Proceed With Troubleshooting

Perform troubleshooting according to the following flowchart.

HINT: 

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

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. CHECK DTC AND FREEZE FRAME DATA* 
   1. Record DTCs and freeze frame data.

      NEXT: Go to next step 

3. CLEAR DTC AND FREEZE FRAME DATA* 

   NEXT: Go to next step 

4. PROBLEM SYMPTOM CONFIRMATION 

   Result

   Result	Proceed to
   Symptom does not occur	A
   Symptom occur	B

   B → GO TO STEP   6 

   A: Go to next step 

5. SYMPTOM SIMULATION 

   NEXT: Go to next step 

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

      Result

      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. Refer to 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 

   NEXT: Go to next step 

8. DTC TABLE 

   NEXT: Go to next step 

9. CIRCUIT INSPECTION 

   NEXT: Go to next step 

10. IDENTIFICATION OF PROBLEM 

    NEXT: Go to next step 

11. REPAIR OR REPLACE 

    NEXT: Go to next step 

12. CONFIRMATION TEST 

    NEXT → END