POWER STEERING SYSTEM(for Manual Tilt and Manual Telescopic Steering Column), Diagnostic DTC:C1521/25, C1531/25, C1532/25, C1533/25, C1534/25

DTC Code DTC Name
C1521/25 Short in Motor Circuit
C1531/25 ECU Malfunction
C1532/25 ECU Malfunction
C1533/25 Temperature Sensor Circuit is Low or High
C1534/25 EEPROM Malfunction

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition
C1521/25 Short in Motor Circuit Motor overcurrent Power steering ECU assembly On Engine switch on (IG) again
C1531/25 ECU Malfunction ECU internal malfunction (CPU malfunction) Power steering ECU assembly On Engine switch on (IG) again
C1532/25 ECU Malfunction ECU internal malfunction (Peripheral circuit malfunction) Power steering ECU assembly On Engine switch on (IG) again
C1533/25 Temperature Sensor Circuit is Low or High ECU internal malfunction (Substrate temperature sensor malfunction) Power steering ECU assembly Off After normal confirmation
C1534/25 EEPROM Malfunction ECU internal malfunction (EEPROM error) Power steering ECU assembly Torque and motor rotation angle sensor adjustment is set to the default value and control is continued. In this case, the warning light illuminates. Engine switch on (IG) again

CAUTION / NOTICE / HINT

Note

If the power steering ECU assembly has been replaced, perform assist map writing.

Click here

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Chassis > EMPS > Clear DTCs

    2. Check for DTCs.

      Click here


      Chassis > EMPS > Trouble Codes
      Result
      Result Proceed to
      DTCs (except C1521/25, C1531/25, C1532/25, C1533/25 and C1534/25 DTC) are not output. A
      DTCs (except C1521/25, C1531/25, C1532/25, C1533/25 and C1534/25 DTC) are output. B

    A

    REPLACE POWER STEERING ECU ASSEMBLY Click here

    B

    REPAIR CIRCUITS INDICATED BY OUTPUT DTCS Click here