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Home >> Lexus >> 2017 >> IS 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Power Steering System - Diagnostic Codes & Circuit Tests >> Power Steering System >> DTC C1555: Motor Relay Welding Failure [04/2013 - 10/2016] >> Description

DTC C1555: Motor Relay Welding Failure [04/2013 - 10/2016]: Description

The power steering ECU assembly supplies current to the power steering motor.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Note
C1555 Motor Relay Welding Failure Motor relay circuit malfunction
  • Power steering motor (Power steering link assembly)
  • Wire harness or connector
  • Power steering ECU assembly
EPS warning light: Comes on -