POWER STEERING SYSTEM, Diagnostic DTC:C1582

DTC Code DTC Name
C1582 Assist Map Number Mismatch

DESCRIPTION

When an incorrect ECM is installed after the assist map has been recorded in the power steering ECU, then DTC C1582 is stored because the data does not match the vehicle specifications.

DTC No. DTC Detection Condition Trouble Area
C1582 Assist map number mismatch

  • Power steering ECU

  • CAN communication system

  • ECM

INSPECTION PROCEDURE

Note

If the power steering ECU has been replaced with a new one, perform the rotation angle sensor initialization and torque sensor zero point calibration Click here.

PROCEDURE


  1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM)


    1. Using the intelligent tester, check for DTCs and confirm that there are no problems in the CAN communication system Click here.

      OK
      DTC is not output.

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here

    OK

  2. CHECK ECM


    1. Check if an ECM that complies with the vehicle specifications is installed.

      OK
      The ECM that complies with vehicle specifications is installed.
      Result
      Condition Proceed to
      OK A
      NG (for 2GR-FE) B
      NG (for 1AR-FE) C

    B

    REPLACE ECM (for 2GR-FE) Click here

    C

    REPLACE ECM (for 1AR-FE) Click here

    A

    REPLACE POWER STEERING ECU Click here