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Fail-Safe Chart [09/2020 - ]

  1. FAIL-SAFE FUNCTION 
    1. The VGRS ECU (front steering control ECU) performs fail-safe control according to the chart below when a malfunction occurs in the VGRS system.
    VGRS SYSTEM

    DTC Code Detection Condition Fail-safe Operation
    C1591 Actuator Neutral Position Calibration Undone Control is not started
    C1592 Actuator Neutral Position Calibration Incomplete Control is not started
    C1593 Actuator Standard Position Control is not started
    C1595 Lost Communication with Steering Angle Sensor Module (SIL) Returns the front relative angle to the neutral position and stops or stops at the current position
    C1597 Lost Communication between VGRS and DRS Returns the front relative angle to the neutral position and stops
    C15A1 Short in Motor Circuit Control is not started or stops
    C15A2 Open in Motor Circuit Control is not started or stops
    C15A3 Motor Rotation Angle Not Detected Control is not started
    C15A4 Motor Rotation Angle Malfunction Control is not stopped
    C15A5 Lock Mechanism Circuit Control is not started or stops
    C15A6 Actuator Motor Power Distribution Malfunction Control is not started or stops
    C15A9 Lock Holder Deviation Detection Control is not started or stops
    C15AA Lock Mechanism Release Incomplete Control is not stopped
    C15AB Lock Mechanism Insertion Control is not started or stops
    C15B1 ECU Malfunction (CPU) Control is not started or stops
    C15B2 ECU Malfunction (Internal Line) Control is not started or stops
    C15B3 ECU Malfunction (Substrate Temperature Sensor) Control continues
    C15B4 ECU Malfunction (Actuator Angle Record) Control is not started or stops
    C15B5 ECU Malfunction (Flash Memory) Control is not started or stops
    C15B6 ECU Malfunction (EEPROM) Control is not started or stops
    C15C1 Steering Angle Sensor Control is not started or stops
    C15C2 Steering Angle Sensor B+ Returns the front relative angle and rear turning angle to the neutral position
    C15C3 Brake System Control Module Returns the front relative angle and rear turning angle to the neutral position
    C15C4 Steering Signal Not Detected -
    C15C5 Motor Rotation Signal Not Detected -
    C15C6 IG Power Supply Voltage Returns the front relative angle and rear turning angle to the neutral position
    C15C7 DC Motor Power Source Voltage Control is not started or stops
    C15C8 Power Supply Relay Failure Control is not started
    C15C9 DRS System Malfunction Returns the front relative angle and rear turning angle to the neutral position
    C15CA EPS System Malfunction Returns the front relative angle and rear turning angle to the neutral position
    C15CB VSC System Malfunction Returns the front relative angle and rear turning angle to the neutral position
    U0100 Lost Communication with ECM/PCM "A" Control is not started
    U0101 Lost Communication with TCM Returns the front relative angle and rear turning angle to the neutral position
    U0125 Lost Communication with Yaw Rate Sensor Module Control continues
    U0126 Lost Communication with Steering Angle Sensor Module Returns the front relative angle and rear turning angle to the neutral position
    U0129 Lost Communication with Brake System Control Module Returns the front relative angle and rear turning angle to the neutral position
    U0131 Lost Communication with Power Steering Control Module Returns the front relative angle and rear turning angle to the neutral position
    U0134 Lost Communication with DRS Module Returns the front relative angle and rear turning angle to the neutral position