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Home >> Lexus >> 2023 >> NX 250 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Electronically Controlled Brake System - Diagnostic Codes (5 Of 6)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model) >> DTC C13D9-09: Brake Pressure Too Low (Brake Booster) Component Failure; DTC C14EC-00: Brake Pressure Control solenoid "C" [11/2021 - ] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
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