DTC C05A1-28: Brake Pressure Sensor "E" Signal Bias Level Out of Range / Zero Adjustment Failure [11/2021 - ]: Description
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.
The servo pressure sensor detects and transmits the servo pressure adjusted by the regulator to the No. 1 skid control ECU (brake booster with master cylinder assembly) in accordance with the vehicle condition.
HINT:
Brake pressure sensor "E": Servo pressure sensor
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from | Note |
|---|---|---|---|---|---|---|
| C05A1-28 | Brake Pressure Sensor "E" Signal Bias Level Out of Range / Zero Adjustment Failure | When the brake pedal is not depressed, the servo pressure sensor output value is -0.63 MPa (-6.4 kgf/cm2 , -91.4 psi) or less or 1.53 MPa (15.6 kgf/cm2 , 222 psi) or more for 3 seconds or more. | No. 1 skid control ECU (brake booster with master cylinder assembly) | Comes on | Brake/EPB |
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