DTC C1425: Open in Stop Light Switch Circuit [04/2018 - 08/2021]: Description

The skid control ECU (brake actuator assembly) receives stop light switch assembly signals and uses them to determine whether or not the brakes are applied.

The skid control ECU (brake actuator assembly) has a detection circuit that it uses to detect an open in the stop light input line.

If the skid control ECU (brake actuator assembly) detects an open in this circuit, it will store this DTC.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1425	Open in Stop Light Switch Circuit	An open in the stop light switch assembly input line continues for 3 seconds or more.	Wire harness or connector Stop light switch assembly Skid control ECU (brake actuator assembly)