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Home >> Lexus >> 2021 >> LC 500h >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Variable Gear Ratio Steering System - Diagnostic Codes & Symptom Tests >> Variable Gear Ratio Steering System >> DTC C15A5/65: Lock Mechanism Circuit [01/2017 - 09/2018] >> Description

DTC C15A5/65: Lock Mechanism Circuit [01/2017 - 09/2018]: Description

If the VGRS ECU (front steering control ECU) detects a malfunction in the lock mechanism, it turns the master warning light on, and stores DTC C15A5/65.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition
C15A5/65 Lock Mechanism Circuit All conditions are met:
  • The power switch is on (IG).
  • A short in the motor circuit or an internal malfunction in the ECU is detected for approximately 0.6 seconds or more.
  • Steering actuator assembly
  • VGRS ECU (front steering control ECU)
  • Harness or connector
 Comes on Power switch on (IG) again
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