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Home >> Lexus >> 2023 >> LS 500h >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (W/O Advanced Park) - Diagnostic Codes (1 Of 3) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Advanced Park) >> DTC C1249: Open Circuit in Stop Light Switch Circuit; DTC P0573: Brake Switch "A" Circuit High [10/2020 - 10/2023] >> Monitor Strategy

Monitor Strategy

Related DTCs P0572: Stop light switch assembly open circuit
P0573: Stop light switch assembly circuit high
Required Sensors/Components (Main) Stop light switch assembly
Speed sensor
Skid control ECU assembly
Required Sensors/Components (Related) Skid control ECU assembly
Stop light switch assembly
Frequency of Operation Continuous
Duration 10 seconds: P0572
10 times: P0573
MIL Operation Immediately
Sequence of Operation None