POWER STEERING SYSTEM(for Power Tilt and Power Telescopic Steering Column) HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use these procedures to troubleshoot the power steering system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. INSPECT BATTERY VOLTAGE


    1. Measure the voltage of the battery.

      Standard voltage
      11 to 14 V

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

    2. Using the GTS, inspect battery voltage reduction history "Battery Voltage Lo Record" in the Data List.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK DTC AND FREEZE FRAME DATA*

    Tech Tips

    Refer to DTC Check / Clear.

    Click here


    Chassis > EMPS > Trouble Codes
    Result
    Proceed to
    NEXT

    NEXT

  4. PROBLEM SYMPTOM CONFIRMATION

    Result
    Proceed to
    Symptom does not occur
    Symptom occurs

    Symptom occurs

    GO TO STEP 6 Click here

    Symptom does not occur

  5. SYMPTOM SIMULATION

    Result
    Proceed to
    NEXT

    NEXT

  6. CHECK CAN COMMUNICATION SYSTEM*


    1. Check for DTCs.

      for LHD: Click here

      for RHD: Click here

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

      Tech Tips


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


    CAN communication system DTC is output

    PROCEED TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) for LHD: Click here
    PROCEED TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) for RHD: Click here

    CAN communication system DTC is not output

  7. CHECK FOR DTC*


    1. Check for DTCs.

      Click here


      Chassis > EMPS > Trouble Codes

      Tech Tips

      Refer to Diagnostic Trouble Code Chart when any DTCs are output.

      Click here

      Result
      Proceed to
      DTC is not output
      DTC is output

    DTC is output

    GO TO STEP 10 Click here

    DTC is not output

  8. PROBLEM SYMPTOMS TABLE


    1. Refer to Problem Symptoms Table.

      Click here

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

    Fault is listed in Problem Symptoms Table

    GO TO STEP 10 Click here

    Fault is not listed in Problem Symptoms Table

  9. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Refer to Terminals of ECU.

      Click here

    2. Refer to Data List / Active Test.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  10. REPAIR OR REPLACE

    Result
    Proceed to
    NEXT

    NEXT

  11. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END