ELECTRONIC POWER STEERING SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING

for Preparation Click here


Perform troubleshooting according to the following flowchart.

HINT:
  1. For further details, see the page given.
  2. The intelligent tester can be used at steps 3, 4, 7, and 10.



1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


    2.CUSTOMER PROBLEM ANALYSIS

      NEXT


      3.CHECK DTC AND FREEZE FRAME DATA

      1. Record DTCs and freeze frame data.


      NEXT


      4.CLEAR DTC AND FREEZE FRAME DATA

        NEXT


        5.PROBLEM SYMPTOM CONFIRMATION


          		.
          SYMPTOM DOES NOT OCCUR (GO TO STEP 6)

          		.
          SYMPTOM OCCURS (GO TO STEP 7)

          6.SYMPTOM SIMULATION

            NEXT


            7.CHECK DTC

            1. Recheck for DTCs.

              HINT:
              1. Refer to the diagnostic trouble code chart if any DTCs are output.
              2. If any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first (Click here).
              3. If communication to the power steering ECU assembly is not established through the intelligent tester, inspect terminals SIL 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 8

            		.
            TROUBLE CODE IS OUTPUT: GO TO STEP 9

            8.PROBLEM SYMPTOMS TABLE

              NEXT


              9.DTC CHART

                NEXT


                10.CIRCUIT INSPECTION

                  NEXT


                  11.IDENTIFICATION OF PROBLEM

                    NEXT


                    12.REPAIR OR REPLACE

                      NEXT


                      13.CONFIRMATION TEST

                        NEXT

                        END