DTC    C1582    Assist Map Number Mismatch


DESCRIPTION

When an incorrect ECM is installed after the assist map has been recorded in the power steering ECU assembly, 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
  1. Power steering ECU assembly
  2. CAN communication system
  3. ECM

INSPECTION PROCEDURE

NOTICE:
If the power steering ECU assembly has been replaced, perform the torque sensor zero point calibration and assist map writing (Click here).
1.CHECK CAN COMMUNICATION SYSTEM
  1. Check for DTCs of the CAN communication system (Click here).

    Result 
    Result
    Proceed to
    DTCs is not output
    A
    DTCs is output
    B


B
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (Click here)
A


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.


NG
REPLACE ECM (Click here)
OK

REPLACE POWER STEERING ECU ASSEMBLY (Click here)