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C006382

BYD's IPB (Integrated Brake Control System) defines DTC C006382 as a lateral acceleration sensor (G200) signal plausibility fault, rather than a simple yaw rate sensor fault — Atto 3

Braking System

BYD's IPB (Integrated Brake Control System) defines DTC C006382 as a lateral acceleration sensor (G200) signal plausibility fault, rather than a simple yaw rate sensor fault.

This sensor typically mounts beneath the center console or behind the center armrest.

It continuously monitors lateral acceleration (in m/s² or G) during cornering or skidding, serving as a core input signal for the ESC (Electronic Stability Control) system to determine the vehicle's dynamic attitude.

The IPB control unit deems the signal unreliable and triggers this DTC if the sensor output falls outside the plausible range (does not approach 0 when stationary), exhibits excessive drift, or if the sensor mounting reference plane deviates from the vehicle horizontal plane by more than 3°.

Following this fault, active safety functions including ESC, ABS, and Automatic Emergency Braking (AEB) may degrade or fail completely.

In extreme cases, the vehicle may lose stability control on curves or slippery surfaces, posing a severe safety risk.

4
Cases Logged
Real-World Cases
BYD DTC AI Analysis

Loose sensor mounting screw caused signal offset on Qin Pro DM

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Symptoms: Dashboard displayed "Check ESP System" and "Check ABS System". ESP warning light stayed on. ESP intermittently intervened abnormally during cornering (sudden single-wheel braking). Diagnosis: Fault code C006382. Live data showed lateral acceleration sensor reading 0.8 m/s² at standstill (normally near 0), with no change during steering. Found loose mounting screws at the rear of the centre console; sensor body tilted ~5°. Resolution: Tightened screws to 8 Nm, performed sensor zero calibration and ESC system calibration. Fault cleared.
BYD DTC AI Analysis

Song MAX connector oxidized after water ingress during wading

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Symptoms: Vehicle waded through ~20 cm of water. On startup, ESP light stayed on, steering was heavy (EPS entered protection mode), and speed was restricted. Diagnosis: Fault codes C006382 and C003708 present. Removed centre console and inspected sensor connector; found water inside with pins 1 and 4 oxidised green. Signal line-to-ground resistance measured abnormal. Resolution: Cleaned connector pins with electronic cleaner, blow-dried them, and applied waterproof conductive grease. Reconnected plug and performed sensor calibration. Recommended installing a waterproof cover.
BYD DTC AI Analysis

Tang DM installation angle error after accident repair

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Symptoms: After front impact repairs (front bumper and radiator support replaced), the ESP warning light remained on. Previous repairs did not involve the chassis. Diagnosis: Read DTC C006382. Found centre console removal during the accident repair had pried the sensor mounting bracket, leaving the sensor mounting surface at approximately 5° from the vehicle horizontal plane (standard requires <3°). Data stream showed lateral acceleration values fluctuating between +0.5G and -0.3G at standstill. Resolution: Corrected the sensor mounting bracket, ensured the arrow marking pointed directly forward and the sensor was level, then calibrated the lateral acceleration and steering angle sensors.
BYD DTC AI Analysis

Calibration data lost after 12V battery replacement on BYD Han EV

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Symptom: After the dealership replaced the auxiliary battery and upgraded the infotainment system, the instrument cluster displayed "Electronic Stability System Fault" with DTC C006382 at startup. Diagnosis: Only DTC C006382 present; no hardware fault codes. Sensor power and ground checked normal. Live data showed "invalid data". The battery replacement involved an extended power disconnect (over 30 minutes), causing ESP control unit calibration data loss. Resolution: No parts required. Parked the vehicle on level ground with the steering wheel straight. Used the BYD VDS diagnostic tool to perform "lateral acceleration sensor zero-point calibration" and "longitudinal acceleration sensor calibration". Cycled the ignition after calibration completed; the warning light cleared.
Other Atto 3 Fault Codes
P0A0DBattery Energy Control Module Requested MIL IlluminationP0AA6Hybrid Battery Voltage System Isolation FaultP1A00Drive Motor "A" Performance — BYD proprietaryB1108For the BYD Song MAX (2017–2019), DTC B1108 indicates a short circuit in the PM2.5 air quality detection module (dust sensor) or its wiring harness. The sensor uses laser scattering to detect in-cabin and outside PM2.5 concentrations and transmits data to the HVAC ECU via the LIN bus or an analog signal. Short circuit conditions include: 1) Sensor power supply wire (+5V/+12V) shorted to ground 2) Signal wire shorted to power or ground 3) Short circuit in the sensor's internal photoelectric detection circuit This fault prevents the automatic climate control from switching between fresh air and recirculation based on air quality. The system enters fail-safe mode (typically forced recirculation). Severe short-circuit current can destroy the HVAC ECU sampling circuit. The system classifies this as a Level 3 severe fault and restricts vehicle operation to prevent electrical fires or controller damage. For other BYD models (such as the Qin EV, E5, and Song DM), B1108 indicates a driver-side sunload sensor fault, reflecting differences in DTC definitions across models.B110811This DTC indicates a short circuit in the air conditioning system PM2.5 air quality sensor (rapid detector). Specifically, abnormal continuity exists between the sensor power supply circuit or signal output circuit and body ground or battery positive. This causes the control module (ACU/air conditioning controller) to detect abnormal current or a voltage signal outside the valid range (typically 0V or supply voltage). The PM2.5 sensor monitors internal and external particulate concentrations, providing the data the automatic air conditioning system uses to switch between fresh air and recirculation modes. A short circuit disables the air quality monitoring function. This fault may force the air conditioning system into recirculation protection mode and trigger related thermal management system faults, as the air conditioning system acts as a key actuator in vehicle thermal management. In severe cases, the short circuit current can damage the internal sampling circuit of the air conditioning controller or overheat the wiring harness.
Data confidence: Community This information is for reference only. Always consult a qualified technician for diagnosis and repair. Do not attempt high-voltage system repairs yourself.