B224713 - B224713 Right Front Window Motor Open Circuit

meaning control commands cannot be effectively converted into execution actions, or the current path has been physically cut at the hardware level. The triggering of this fault code is directly linked to power output safety and functional integrity in the door area, reflecting the vehicle's high reliability monitoring requirements for key driving convenience functions (window lift).

# Common Fault Symptoms

Based on the electrical characteristics and raw data of "Right Front Window Motor Open Circuit", the following perceptible symptom manifestations may occur during vehicle operation:

• Silent Actuator: The right front window glass completely loses lifting and lowering ability, with no action response regardless of which position the drive switch is set to.
• Function Failure Feedback: The dashboard or in-vehicle user interface may display door-related function warnings (depending on specific model display logic), mainly manifesting as right front window motor function failure.
• Dynamic No Response: After vehicle start-up, when attempting to operate the right front window lift, the system cannot receive current feedback signals from the motor.

# Core Fault Cause Analysis

Based on the technical definition and set conditions of fault code B224713, the root cause of this problem can be analyzed from three dimensions: hardware components, wiring connections, and controller logic:

• Hardware Component Failure: As the core actuator, internal winding burn-out, open circuit or electromagnetic coil failure within the Right Front Window Motor is the direct cause of this fault code. This belongs to physical performance degradation of the motor body, making it unable to establish normal working current in a driving state.
• Wiring and Connector Anomalies: Wires connecting between the Right Domain Controller and the Right Front Window Motor are broken or worn, or plug connector terminals oxidized, loose, or have poor contact, causing physical interruption of the circuit path and triggering an open-circuit judgment.
• Controller Internal Logic Failure: Damage to the drive power output stage inside the Right Domain Controller or failure of the current monitoring channel means that even if the wiring and motor are intact, it cannot correctly identify or output current signals, subsequently being erroneously judged by the system as "current not detected".

# Technical Monitoring and Trigger Logic

The generation of this fault code follows a strict ECU diagnostic algorithm. Its monitoring targets and trigger conditions are as follows:

• Monitoring Target: The Right Domain Controller monitors dynamic parameters of the drive circuit in real-time, with the core monitoring indicator being the motor current signal flowing through the Right Front Window Motor.
• Numerical Judgment Logic: The system expects continuous current flow when the motor is operating, but under the set fault conditions, the monitoring logic requires "no current detected". If the measured current value falls below the threshold or equals zero, it conforms to open-circuit characteristics.
• Specific Condition Trigger: Execution of the diagnostic procedure depends on the vehicle's power state and must satisfy the prerequisite condition that "Start switch is in ON gear". Only when the ignition is activated does the controller activate real-time feedback loop monitoring for window drive motor current.
• Action Correlation Judgment: The trigger timing for fault judgment is "when driving the window motor action". That is, when the user issues a lift/lower command and the controller sends a control signal, if no corresponding current pulse or continuous current value is detected within the expected drive time, the system will immediately record fault code B224713 and light up relevant fault lights.

Cause Analysis Based on the technical definition and set conditions of fault code B224713, the root cause of this problem can be analyzed from three dimensions: hardware components, wiring connections, and controller logic:

• Hardware Component Failure: As the core actuator, internal winding burn-out, open circuit or electromagnetic coil failure within the Right Front Window Motor is the direct cause of this fault code. This belongs to physical performance degradation of the motor body, making it unable to establish normal working current in a driving state.
• Wiring and Connector Anomalies: Wires connecting between the Right Domain Controller and the Right Front Window Motor are broken or worn, or plug connector terminals oxidized, loose, or have poor contact, causing physical interruption of the circuit path and triggering an open-circuit judgment.
• Controller Internal Logic Failure: Damage to the drive power output stage inside the Right Domain Controller or failure of the current monitoring channel means that even if the wiring and motor are intact, it cannot correctly identify or output current signals, subsequently being erroneously judged by the system as "current not detected".

# Technical Monitoring and Trigger Logic

The generation of this fault code follows a strict ECU diagnostic algorithm. Its monitoring targets and trigger conditions are as follows:

• Monitoring Target: The Right Domain Controller monitors dynamic parameters of the drive circuit in real-time, with the core monitoring indicator being the motor current signal flowing through the Right Front Window Motor.
• Numerical Judgment Logic: The system expects continuous current flow when the motor is operating, but under the set fault conditions, the monitoring logic requires "no current detected". If the measured current value falls below the threshold or equals zero, it conforms to open-circuit characteristics.
• Specific Condition Trigger: Execution of the diagnostic procedure depends on the vehicle's power state and must satisfy the prerequisite condition that "Start switch is in ON gear". Only when the ignition is activated does the controller activate real-time feedback loop monitoring for window drive motor current.
• Action Correlation Judgment: The trigger timing for fault judgment is "when driving the window motor action". That is, when the user issues a lift/lower command and the controller sends a control signal, if no corresponding current pulse or continuous current value is detected within the expected drive time, the system will immediately record fault code B224713 and light up relevant fault lights.