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DTC C15A5: Lock Mechanism Circuit [12/2017 - 10/2023]: 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.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition
C15A5 Lock Mechanism Circuit All conditions are met:
  • The engine 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 Engine switch on (IG) again
DTC DETECTION CONDITIONS:

  Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition Engine switch is on (IG)
Malfunction Status A short in the motor circuit -
An internal ECU malfunction -
Detection Time Approximately 0.6 seconds or more Approximately 0.6 seconds or more
Number of Trips 1 trip 1 trip

HINT: 

DTC will be output when conditions for either of the patterns in the table above are met.