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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] >> Typical Enabling Conditions

Typical Enabling Conditions

P0572

Monitor runs whenever the following DTCs are not stored C0597 (Case 1): EEPROM malfunction
C0597 (Case 2): Lost communication
C0597 (Case 3 and 5): CPU malfunction
C0597 (Case 4): IC malfunction
C1241 (Case 1 and 2): Brake system voltage circuit low
C1241 (Case 3 and 4): Speed sensor voltage circuit low
IG2 voltage Higher than 9.5 V
P0573

Monitor runs whenever the following DTCs are not stored None
IG2 voltage Higher than 9.5 V