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P060C00

In the BYD IPB (Integrated Power Brake) system, DTC P060C00 indicates an internal control module main processor performance fault or internal self-test failure — Qin Plus

Braking System

In the BYD IPB (Integrated Power Brake) system, DTC P060C00 indicates an internal control module main processor performance fault or internal self-test failure.

This fault isolates to a calculation error, clock fault, memory checksum failure, or internal bus communication interruption within the core processor (MCU) of the ECU built into the IPB electro-hydraulic module.

Because the IPB system integrates key functions including ABS, ESP, EPB, Automatic Emergency Braking (AEB), and energy recovery, this fault can cause brake assist failure, restricted ESC operation, and unavailable AEB, posing serious safety risks.

The vehicle typically enters brake system degraded mode (limp mode).

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Cases Logged
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Causes
Likely Causes — Qin Plus
  • 1Hardware damage or performance degradation of the internal main processor (MCU) in the IPB electro-hydraulic module, commonly presenting as dry solder joints following high-temperature exposure or prolonged heavy-load operation.
  • 2Abnormal IPB module supply voltage, including unstable battery voltage, excessive voltage drop in the power supply circuit, or poor grounding causing the processor operating voltage to drop below the rated value (outside the 9-16V range).
  • 3Corrupted IPB control software, a Flash memory data checksum error, or a software version defect causes the internal monitoring program to trigger fault protection.
  • 4Electromagnetic interference or abnormal signals on the brake system CAN network (powertrain CAN or chassis CAN) cause the IPB control module to falsely detect an internal communication timeout.
  • 5Short or open circuit in the internal A/D conversion circuit or sensor interface circuit of the IPB module, triggering the control module internal fault diagnosis logic.
What To Do
  • 1
    Use the BYD VDS2000/3000 diagnostic tool to access the IPB system, read all fault codes and freeze frame data, check for accompanying fault codes such as P060B00 (A/D conversion fault) and C155200 (ECU fault), and record parameters such as vehicle speed, voltage, and temperature at the time of the fault.
  • 2
    Check the IPB electro-hydraulic module power supply: measure the voltage and resistance of terminal 30 constant power (B+), terminal 15 ignition switch power (IGN), and the ground wire (GND). Verify the voltage is within 12V±0.5V and the ground resistance is less than 1Ω. Check the fuse and relay status.
  • 3
    Check the IPB module CAN communication lines: Measure the CAN-H (2.5-3.5V) and CAN-L (1.5-2.5V) voltage to ground at the OBD connector or IPB plug, verify the terminal resistance is approximately 60Ω, and use an oscilloscope to check the CAN waveform for abnormal interference.
  • 4
    Perform IPB control unit software update: Use the diagnostic tool to update the IPB module software to the latest version (if a relevant technical bulletin exists). After the update, clear the fault code and perform static and dynamic tests (including multiple power-on cycles).
  • 5
    If the fault code recurs during driving or under specific conditions (such as high temperatures or bumpy roads), replace the IPB electro-hydraulic module assembly with ECU. After replacement, perform the following: coding configuration, brake line bleeding (requires special equipment), wheel speed sensor signal check, EPB initialization calibration, and ESC function test.
  • 6
    Perform a road test to verify ABS operation, ESP intervention, automatic emergency braking simulation (if conditions permit), and the energy recovery function. Confirm the fault code does not return and no warning lights illuminate on the instrument cluster.
Real-World Cases
BYD DTC AI Analysis

Song PLUS DM-i IPB Module Intermittent High-Temperature Fault

✓
Vehicle had approximately 20,000 km when, after extended driving in summer heat (ambient temperature >38°C), the instrument panel suddenly lit the ABS and ESC warning lights with "Brake System Fault". Automatic emergency braking was unavailable. Diagnosis retrieved P060C00 (current fault). Freeze frame showed IPB internal temperature at 85°C when the fault occurred. IPB power supply and ground checked normal; CAN communication showed no abnormalities. Updated IPB software to the latest version, but the fault recurred during subsequent high-temperature testing. Replaced the IPB electro-hydraulic module assembly — fault resolved. Analysis: IPB internal processor experiences performance drift at high temperatures. Hardware defect.
BYD DTC AI Analysis

Unstable battery voltage triggered IPB processor protection

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After sitting one week, the vehicle displayed a brake system fault at startup. Retrieved DTCs P060C00 (historical) and P056200 (low system voltage). Battery voltage was 10.8V (discharged). Replaced the battery, cleaned the IPB ground wire, and cleared the codes; the fault did not recur. Low startup voltage caused the IPB internal processor to reset abnormally, triggering the fault codes. Recommend checking vehicle parasitic draw and battery health.
BYD DTC AI Analysis

IPB software defect causing intermittent fault codes

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No obvious symptoms, but the 4S dealership found intermittent DTC P060C00 in the IPB system during routine maintenance. No modifications found; power and wiring normal. Per TSB, IPB control units in this batch of Song PLUS DM-i have a software defect that may falsely report internal faults under specific conditions (e.g., rapid consecutive brake presses). Reflashed software to version IPB_V2.3.8 or higher. Fault code cleared; no recurrence after extended monitoring.
BYD DTC AI Analysis

Internal short in IPB module after water exposure

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After driving through floodwater, multiple brake-related warning lights illuminated on the instrument cluster, including ABS, ESP, and EPB fault lights. The diagnostic tool read P060C00 (current fault) and C155200 (ECU internal fault). Inspection of the IPB electro-hydraulic module revealed water ingress at the connector and oxidation on the internal circuit board. Water entry caused a short circuit in the IPB internal control circuitry, resulting in abnormal main processor operation. Replaced the IPB assembly and sealed the wiring harness to resolve the fault. Recommend inspecting the sealing around the IPB mounting location and checking the breather vent condition.
Other Qin Plus Fault Codes
B1108For 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.B110913DTC B110913 indicates an open signal circuit for the PM2.5 rapid detector (in-cabin air quality sensor). This sensor typically mounts inside the air conditioning system intake duct. It monitors in-cabin PM2.5 concentration in real time and provides data to the automatic air conditioning system for intelligent control of the air purification function. The BYD diagnostic protocol uses sub-code '13' to specifically indicate an open signal circuit. Although this fault theoretically affects a comfort feature, BYD Qin series vehicles classify it as a Level 3 (severe) fault. This classification occurs because the air conditioning system interacts with the battery thermal management system (e.g., monitoring battery cooling intake air quality). The fault can disable the automatic air conditioning mode and prevent the air purification function from operating. In extreme cases, it affects the battery compartment intake air quality assessment, triggering the 'repair immediately' strategy.B110BDTC B110B indicates a fault in the internal air pump (sampling pump) of the PM2.5 air quality detector. This pump draws cabin or outside air into the PM2.5 sensor detection chamber, enabling the laser scattering sensor to measure real-time particulate matter concentration. The air conditioning controller (or BCM) sets this DTC upon detecting an open or short circuit in the pump drive circuit, or abnormal current caused by a seized pump motor. This fault disables the "Green Clean" system, causes the instrument cluster air quality display to read abnormally or disappear, and disables the automatic fresh air/recirculation switching function. It does not affect the vehicle powertrain or core thermal management functions.B173A1ADTC B173A1A indicates the right middle-row side airbag (typically located on the side of the right second-row seat or inside the C-pillar trim panel) igniter circuit resistance measures 0 Ω. In the Supplemental Restraint System (SRS), normal airbag igniter resistance ranges between 2.0 and 5.0 Ω. A resistance of 0 Ω indicates a short to ground or a short between circuit wires, preventing the Airbag Control Unit (ACU) from establishing a normal monitoring circuit. This safety-critical fault prevents the airbag from deploying during a collision, continuously illuminates the instrument panel SRS warning lamp, and may force the entire airbag system into fail-safe mode.B173BDTC B173B indicates an abnormal electric A/C compressor speed feedback signal or a communication fault between the compressor controller and the motor. In BYD new energy models (e.g., Tang, Song, Qin, and Yuan series), this DTC belongs to the HVAC subsystem within the Body Control system and specifically involves the electric compressor closed-loop control circuit. The ECU sets this DTC when the compressor controller (IPM) fails to receive a valid pulse signal from the Hall speed sensor for more than 3 continuous seconds, or when the deviation between the detected actual speed and the target commanded speed exceeds the calibrated threshold (typically >500 rpm). This fault forces the A/C system into fail-safe mode and stops compressor operation. Symptoms include a complete lack of cooling, intermittent cooling, or a sharp decrease in cooling performance. The instrument cluster A/C warning lamp may also illuminate. Prolonged operation with this fault can degrade high-voltage system insulation or cause controller overcurrent damage.
Common problems reported for Qin Plus →Qin Plus overview →
Data confidence: Official This information is for reference only. Always consult a qualified technician for diagnosis and repair. Do not attempt high-voltage system repairs yourself.