How To Proceed With Troubleshooting

Perform troubleshooting according to the following flowchart.

HINT: 

• For further details, see the information given.
• The Techstream can be used at steps 2, 3, 6, 9, and 12.

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 

   → SYMPTOM DOES NOT OCCUR (GO TO STEP 5) 

   → SYMPTOM OCCURS (GO TO STEP 6) 

5. SYMPTOM SIMULATION 

   NEXT: Go to next step 

6. CHECK DTC 
   1. Recheck for DTCs.

      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 CANH and CANL of the DLC3 and power steering ECU assembly, and inspect the IG circuit of the power steering ECU assembly.

      → NORMAL SYSTEM CODE IS OUTPUT: GO TO STEP 7 

      → TROUBLE CODE IS OUTPUT: GO TO STEP 8 

7. PROBLEM SYMPTOMS TABLE 

   NEXT: Go to next step 

8. CIRCUIT INSPECTION 

   NEXT: Go to next step 

9. IDENTIFICATION OF PROBLEM 

   NEXT: Go to next step 

10. REPAIR OR REPLACE 

    NEXT: Go to next step 

11. CONFIRMATION TEST 

    NEXT → END