The vehicle's computer has detected a performance problem in the brake system control module, often related to the ABS or traction control system. This code indicates that the module is not operating within expected parameters.
The module itself may have internal faults that cause it to report performance issues.
Corroded, damaged, or loose connections can interrupt communication and sensor data.
A bad sensor can provide incorrect data that the module interprets as a performance problem.
Improper fluid level or moisture can affect hydraulic pressure sensors monitored by the module.
Issues with the ABS pump or valves can cause pressure anomalies that trigger the code.
A defective pressure sensor can send erroneous signals to the control module.
No. The power‑train control module does not control the brake system; the issue is usually with the brake control module, its wiring, or related sensors.
The car may still brake normally, but the ABS and possibly traction control could be disabled, so drive cautiously and have the system inspected promptly.
Replacement can be costly, but often the problem is resolved by repairing wiring, connectors, or sensors which are less expensive.
Sometimes, if low or contaminated fluid is the cause, flushing and refilling can resolve the issue, but it is not guaranteed and should be done as part of a broader inspection.