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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 97 (Engine Control System Diagnosis - 1.6L (4 Of 6)) >> DTC P0504-00: Brake Switch "A" "B" Correlation >> DTC Information >> DTC Description

DTC 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.

The ECM compares the brake light switch signals with the brake test switch signals and sets DTC P050400 if abnormal.