Lexus NX: Power Source & Network

 Assist Map Number Un-Writing (C1581)

DESCRIPTION This DTC will be stored if the power steering ECU assembly determines that the assist map is not written in the ECU. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition C1581 Assist Map Number Un-Writing Assist map

 Inspection

INSPECTION PROCEDURE 1. INSPECT CLEARANCE LIGHT ASSEMBLY LH (a) Apply battery voltage to the connector and check the light illumination condition. OK: Condition Specified Condition Battery positive (+) → 3 (DRL) Battery negative (-) → 2 (E) LED illuminates Battery positive (+)