How To Proceed With Troubleshooting [09/2013 - ]

HINT: 

• Use these procedures to troubleshoot the power steering system.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. CUSTOMER PROBLEM ANALYSIS 
   1. Confirm the problem symptoms. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2013 - ] .

      NEXT: Go to next step 

3. INSPECT AUXILIARY BATTERY VOLTAGE 

   Standard voltage

   11 to 14 V

   If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

   NEXT: Go to next step 

4. CHECK DTC AND FREEZE FRAME DATA* 
   1. Check and record DTCs and freeze frame data.

      NEXT: Go to next step 

5. CLEAR DTC AND FREEZE FRAME DATA* 
   1. Clear the DTCs and freeze frame data.

      NEXT: Go to next step 

6. PROBLEM SYMPTOM CONFIRMATION 
   RESULT
   
   

   Result	Proceed to
   Symptom does not occur.	A
   Symptom occurs.	B

   B → Go to step   8 

   A: Go to next step 

7. SYMPTOM SIMULATION 
   1. Perform symptom simulation. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2013 - ] .

      NEXT: Go to next step 

8. CHECK CAN COMMUNICATION SYSTEM* 
   1. Check for DTCs. Refer to DIAGNOSIS SYSTEM [09/2013 - ] .
      RESULT
      
      

      Result	Proceed to
      CAN communication system DTC is not output	A
      CAN communication system DTC is output	B

      HINT: 

      • If any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first.
      • If communication to the power steering ECU assembly cannot be established through the Techstream, inspect terminals CANH and CANL of the DLC3 and the power steering ECU assembly, and the IG circuit of the power steering ECU assembly.

      B → PROCEED TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2013 - ] 

      A: Go to next step 

9. CHECK FOR DTC* 
   1. Check for DTCs. Refer to DTC CHECK / CLEAR [09/2013 - ] .

      HINT: 

      Refer to Diagnostic Trouble Code Chart when any DTCs are output. Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2013 - ] .

      RESULT
      
      

      Result	Proceed to
      DTC is not output	A
      DTC is output	B

      B → Go to step   12 

      A: Go to next step 

10. PROBLEM SYMPTOMS TABLE 
    1. Refer to PROBLEM SYMPTOMS TABLE [09/2013 - ] .
       RESULT
       
       

       Result	Proceed to
       Fault is not listed in Problem Symptoms Table	A
       Fault is listed in Problem Symptoms Table	B

       B → Go to step   12 

       A: Go to next step 

11. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. Refer to TERMINALS OF ECU [09/2013 - ] .
    2. Refer to Data List / Active Test. Refer to DATA LIST / ACTIVE TEST [09/2013 - ] .

       NEXT: Go to next step 

12. REPAIR OR REPLACE 

    NEXT: Go to next step 

13. CONFIRMATION TEST 

    NEXT → END