C007200 - Brake System Temperature Too High_Brake Pedal Throttle Pedal Signal Unreasonable

C007200 Fault Depth Definition

Fault code C007200 characterizes abnormality in critical safety parameters detected by the Electronic Control Unit (ECU) during Intelligent Power Brake System (Intelligent Power Brake System, IPBS) operation. The core logic of this fault code lies in the control system performing a dual verification on the rationality of thermal management data and driver input signals; when component temperature exceeds allowed thresholds or pedal signals show logical conflicts, the system triggers protection mechanisms. This definition emphasizes the closed-loop control logic where control units perform real-time monitoring of actuator status in modern automotive architecture, belonging to active safety strategies.

Common Fault Symptoms

Due to function limitation of the Intelligent Power Brake System, owners may experience the following phenomena in driving experience and instrument feedback:

• The "Brake System" or related warning lights illuminate on the dashboard indicating system degradation.
• Electric power assist torque output is limited, resulting in heavier brake feel or delayed assist response.
• Some advanced braking assist functions are temporarily disabled, retaining only basic mechanical braking capability to ensure driving safety.
• Power cut-off signals may abnormally activate, affecting energy recovery logic during coasting or downhill driving.

Core Fault Cause Analysis

According to technical diagnostic pathways, this fault code can be caused by hardware or logical anomalies in the following three dimensions:

• Hardware Component Failure: Involves signal processing units inside the intelligent power brake controller, temperature sensor chip damage, or poor contact of electronic switches.
• Wiring and Connector Status: Wiring harnesses connecting control units to various sensing actuators have open circuits, shorts, or connector pin loosening/oxidation corrosion due to long-term vibration, leading to signal transmission interruption.
• Input Signal Logic Conflict: Mismatch between physical state expected by control algorithms and brake pedal position sensor/throttle/pedal signal collected values triggers rationality check failure.

Technical Monitoring and Trigger Logic

The control unit adopts continuous real-time monitoring strategy, judging and storing fault codes only under specific conditions:

• Monitored Target Parameters: Focuses on numerical fluctuation range of internal temperature sensors in the brake system, and consistency verification of pedal position signals (involving voltage values, duty cycle or PWM pulse integrity).
• Trigger Threshold Judgment: When "Brake System Temperature Excessive" exceeds safety red line, or throttle/brake pedal signal shows unreasonable jumping, logic thresholds are crossed.
• Operating Condition Dependent Conditions: Fault storage and illumination logic strictly depends on ignition switch being placed in ON Position afterwards. In power not fully powered up or ignition off state, this fault code is in a pending recording status, no immediate warning triggered.