DTC C1542-01: Brake Circuit Error: General Description

WARNING: This page is about a different car, the 2021 Kia Seltos. However, it is still accessible from the selected car via links, so may be relevant.

Hydraulic Electronic Control Unit (HECU) receives information about connection state of components and operation state through brake circuit. Brake circuit sends "ON" state to HECU and the pressure sensor data is increased when you depress a brake pedal. While you release the brake pedal, brake circuit sends "OFF" state to HECU and the pressure sensor data remains below 5bar.