BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): C054016,...,C054096; Brake Pressure Sensor "A" Circuit Voltage Below Threshold; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM10000000260S0
Model Year Start: 2023	Model: GR Corolla	Prod Date Range: [09/2022 - ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): C054016,...,C054096; Brake Pressure Sensor "A" Circuit Voltage Below Threshold; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 - ]

DTC

C054016

Brake Pressure Sensor "A" Circuit Voltage Below Threshold

DTC

C05401C

Brake Pressure Sensor "A" Circuit Voltage Out of Range

DTC

C05401F

Brake Pressure Sensor "A" Circuit Intermittent

DTC

C054029

Brake Pressure Sensor "A" Signal Invalid

DTC

C05402A

Brake Pressure Sensor "A" Signal Stuck In Range

DTC

C054031

Brake Pressure Sensor "A" No Signal

DTC

C054049

Brake Pressure Sensor "A" Internal Electronic Failure

DTC

C054096

Brake Pressure Sensor "A" Component Internal Failure

DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C054016	Brake Pressure Sensor "A" Circuit Voltage Below Threshold	Master cylinder pressure is below -0.744 MPa (-7.6 kgf/cm², -107 psi) for 5 seconds or more.	Skid control ECU (brake actuator assembly)
C05401C	Brake Pressure Sensor "A" Circuit Voltage Out of Range	When vehicle speed is 7 km/h (4.3 mph) or more, braking is performed (stop light switch assembly is ON) and master cylinder pressure differential value is below 20 MPa/s, difference between master cylinder pressure estimated from vehicle deceleration and master cylinder pressure sensor input value is large for 1 second or more 5 times or more for 9 trips.	Skid control ECU (brake actuator assembly)
C05401F	Brake Pressure Sensor "A" Circuit Intermittent	When vehicle speed is 10 km/h (6 mph) or more, noise in master cylinder pressure value occurs 7 times or more in 5 seconds.	Skid control ECU (brake actuator assembly)
C054029	Brake Pressure Sensor "A" Signal Invalid	Master cylinder pressure sensor invalid condition continues for 0.2 seconds or more.	Skid control ECU (brake actuator assembly)
C05402A	Brake Pressure Sensor "A" Signal Stuck In Range	Any of the following is detected: When vehicle speed is 7 km/h (4.3 mph) or more and master cylinder pressure exceeds 1.764 MPa (18.0 kgf/cm², 255 psi), master cylinder pressure does not increase 0.048 MPa (0.5 kgf/cm², 6.9 psi) or more continuously for 60 seconds. When vehicle speed is 7 km/h (4.3 mph) and master cylinder pressure is 2.45 MPa (25.0 kgf/ cm², 355 psi) or more, master cylinder pressure does not increase 0.048 MPa (0.5 kgf/cm², 6.9 psi) or more continuously for 30 seconds. Master cylinder pressure does not increase 0.048 MPa (0.5 kgf/cm², 6.9 psi) or more 5 times or more while vehicle speed decreases from 40 km/h (25 mph) to 0 km/h (0 mph).	Skid control ECU (brake actuator assembly)
C054031	Brake Pressure Sensor "A" No Signal	Master cylinder pressure sensor communication invalid condition continues for 0.1 seconds or more.	Skid control ECU (brake actuator assembly)
C054049	Brake Pressure Sensor "A" Internal Electronic Failure	Either of the following is detected: When voltage at terminal +BS is 9.5 V or higher, power supply voltage of master cylinder pressure sensor is continuously low for 1 second or more. When master cylinder pressure sensor power supply voltage has risen, master cylinder pressure sensor has overheated or overcurrent of master cylinder pressure sensor continues for 1.2 seconds or more.	Skid control ECU (brake actuator assembly)
C054096	Brake Pressure Sensor "A" Component Internal Failure	Either of the following is detected: Master cylinder pressure exceeds 23.328 MPa (237.8 kgf/cm², 3382 psi) continuously for 0.1 seconds. Master cylinder temperature exceeds 150°C (302°F) continuously for 0.1 seconds.	Skid control ECU (brake actuator assembly)

PROCEDURE

1.	REPLACE BRAKE ACTUATOR ASSEMBLY

Click here

END