How To Proceed With Troubleshooting

Perform troubleshooting according to the following flowchart.

HINT:

• For further details, see the page given.
• The hand-held tester can be used at steps 3, 4, 7, 10 and 13.

1. VEHICLE BROUGHT TO WORKSHOP 

   GO TO NEXT STEP. 

2. CUSTOMER PROBLEM ANALYSIS (See  CUSTOMER PROBLEM ANALYSIS CHECK   ) 

   GO TO NEXT STEP. 

3. CHECK DTC AND FREEZE FRAME DATA (See  DTC CHECK/CLEAR   ) 
   1. Record DTCs and freeze frame data.

      GO TO NEXT STEP. 

4. CLEAR DTC AND FREEZE FRAME DATA (See  DTC CHECK/CLEAR   ) 

   GO TO NEXT STEP. 

5. PROBLEM SYMPTOM CONFIRMATION 
   1. A: SYMPTOM DOES NOT OCCUR (GO TO STEP 6) 
   2. B: SYMPTOM OCCURS (GO TO STEP   7 ) 
6. SYMPTOM SIMULATION (See  HOW TO PROCEED WITH TROUBLESHOOTING  ) 

   GO TO NEXT STEP. 

7. CHECK DTC (See  DTC CHECK/CLEAR   ) 
   1. Recheck for DTCs.

   HINT:

   • Refer to the DIAGNOSTIC TROUBLE CODE CHART  when any DTCs are output.
   • When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first (See POWER STEERING ECU COMMUNICATION STOP MODE ).
   • When communication to the power steering ECU assy is not established through the hand-held tester, inspect terminals SIL of the DLC3 and power steering ECU assy and inspect the IG circuit of the power steering ECU assy.
   1. A: NORMAL SYSTEM CODE IS OUTPUT: GO TO STEP 8 
   2. B: TROUBLE CODE IS OUTPUT: GO TO STEP   9 
8. PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 

   GO TO NEXT STEP. 

9. DTC CHART (See  DIAGNOSTIC TROUBLE CODE CHART   ) 

   GO TO NEXT STEP. 

10. CIRCUIT INSPECTION (See  DTC C1511 TORQUE SENSOR ABNORMAL, DTC C1512 TORQUE SENSOR ABNORMAL, DTC C1513 TORQUE SENSOR ABNORMAL, DTC C1514 TORQUE SENSOR POWER SUPPLY ABNORMAL, DTC C1517 TORQUE HOLD ABNORMAL   ) 

    GO TO NEXT STEP 

11. IDENTIFICATION OF PROBLEM 

    GO TO NEXT STEP 

12. REPAIR OR REPLACE 

    GO TO NEXT STEP 

13. CONFIRMATION TEST 

    GO TO NEXT STEP 

    END