C1581
DTC C1581 Assist Map Number Un-WritingDESCRIPTION
The power steering ECU assembly outputs this DTC when it determines that the assist map is not written in the ECU.
HINT: The assist map is data written in the power steering ECU assembly to control the degree of assistance. The assist map is selected based on the vehicle's specified communication data (designation and grade package information).
C1581:
INSPECTION PROCEDURE
Steps 1-3(Part 1):
Steps 3(Part 2)-5:
