C1581

DTC C1581 ASSIST MAP NUMBER UN-WRITING

CIRCUIT DESCRIPTION

DTC Detection Item:

The power steering ECU assy outputs this DTC when it determines that assist map is not written in the ECU. It is necessary to replace the power steering ECU assy when this code is output because this malfunction cannot be repaired.

HINT: The assist map is data written in the power steering ECU assy to control assisting power. The assist map is selected from four types based on the vehicle specification communication data (designation and grade package information).

Step 1:

INSPECTION PROCEDURE