POWER STEERING SYSTEM

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tip:

  • 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. Turn the ignition switch off.

    2. Measure the voltage of the battery.

      Standard Voltage

      11 to 14 V

      Tip:

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

    Result

    Proceed to

    NEXT
    NEXT

  3. CHECK DTC AND FREEZE FRAME DATA*

    Tip:

    Refer to DTC Check / Clear.

    Click here

    Chassis > EMPS > Trouble Codes

    Result

    Proceed to

    NEXT
    NEXT

  4. PROBLEM SYMPTOM CONFIRMATION

    Result

    Result

    Proceed to

    Symptom does not occur.

    A

    Symptom occurs.

    B
    B

    CHECK CAN COMMUNICATION SYSTEM*Click here

    A

  5. SYMPTOM SIMULATION

    Result

    Proceed to

    NEXT
    NEXT

  6. CHECK CAN COMMUNICATION SYSTEM*

    1. Check for DTCs.

      Click hereClick hereClick here

      Result

      Result

      Proceed to

      CAN communication system DTCs are not output.

      A

      CAN communication system DTCs are output.

      B
      Tip:

      • If any CAN communication system DTCs are output, perform troubleshooting for 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.

    B

    PROCEED TO CAN COMMUNICATION SYSTEM

    Click hereClick here

    A

  7. CHECK FOR DTC*

    1. Check for DTCs.

      Click here

      Chassis > EMPS > Trouble Codes

      Tip:

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

      Click hereClick here

    Result

    Result

    Proceed to

    DTCs are not output.

    A

    DTCs are output.

    B
    B

    REPAIR OR REPLACEClick here

    A

  8. PROBLEM SYMPTOMS TABLE

    1. Refer to Problem Symptoms Table.

      Click hereClick here

    Result

    Result

    Proceed to

    Fault is not listed in Problem Symptoms Table.

    A

    Fault is listed in Problem Symptoms Table.

    B
    B

    REPAIR OR REPLACEClick here

    A

  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