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Home >> Lexus >> 2023 >> LS 500h >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (W/ Advanced Park) - Diagnostic Codes (4 Of 5) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Advanced Park) >> DTC C13D9-09: Brake Pressure Too Low (Brake Booster) Component Failure; DTC C14EC-00: Brake Pressure Control solenoid "C" [11/2021 - 10/2023] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

C13D9 (CASE 1-1)

Both of the following conditions are met -
Difference between target brake pressure and servo pressure Higher than 2.7 to 4.14 MPa (27.5 to 42.2 kgf/cm2 , 392 to 601 psi)
Delay of servo pressure increase Higher than 0.3 to 4.584 seconds
C13D9 (CASE 1-2)

Both of the following conditions are met -
Difference between target brake pressure and servo pressure Higher than 1.5 MPa (15.3 kgf/cm2 , 218 psi)
Delay of servo pressure increase Higher than 0.3 to 4.584 seconds
C14EE

Servo pressure 0.1 MPa (1 kgf/cm2 , 15 psi) or less