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Home >> Toyota >> 2019 >> Highlander Limited, FWD >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Vehicle Stability Control System - Diagnostic Codes - (Except Hybrid) (2 Of 2) >> Vehicle Stability Control System >> DTC C1425: Open in Stop Light Switch Circuit [11/2016 - ] >> Description

DTC C1425: Open in Stop Light Switch Circuit [11/2016 - ]: Description

The skid control ECU (brake actuator assembly) receives stop light switch 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 When voltage at terminal +BS is 9.5 to 17.4 V, open circuit occurs between STP terminal circuits A and B for 0.3 seconds or more (except restart due to stop and start control*).
  • Wire harness or connector
  • Stop light switch assembly
  • Skid control ECU (brake actuator assembly)

*: w/ Stop and Start System