BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): C057300,...,C14D017; Brake Pressure Sensor "C" Malfunction; 2022 - 2025 MY RAV4 RAV4 HV [12/2021

Last Modified: 05-08-2025	6.11:8.1.0	Doc ID: RM10000000214PJ
Model Year Start: 2022	Model: RAV4	Prod Date Range: [12/2021 - ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): C057300,...,C14D017; Brake Pressure Sensor "C" Malfunction; 2022 - 2025 MY RAV4 RAV4 HV [12/2021 - ]

DTC

C057300

Brake Pressure Sensor "C" Malfunction

DTC

C05731F

Brake Pressure Sensor "C" Circuit Intermittent

DTC

C057331

Brake Pressure Sensor "C" No Signal

DTC

C057396

Brake Pressure Sensor "C" Component Internal Failure

DTC

C057700

Brake Pressure Sensor "D" Malfunction

DTC

C05771F

Brake Pressure Sensor "D" Circuit Intermittent

DTC

C057731

Brake Pressure Sensor "D" No Signal

DTC

C057796

Brake Pressure Sensor "D" Component Internal Failure

DTC

C05A100

Brake Pressure Sensor "E" Malfunction

DTC

C05A11F

Brake Pressure Sensor "E" Circuit Intermittent

DTC

C05A131

Brake Pressure Sensor "E" No Signal

DTC

C05A196

Brake Pressure Sensor "E" Component Internal Failure

DTC

C14B016

Brake Pressure Sensor "D" Power Supply Voltage Circuit Voltage Below Threshold

DTC

C14B017

Brake Pressure Sensor "D" Power Supply Voltage Circuit Voltage Above Threshold

DTC

C14C016

Servo Pressure Sensor Power Supply Voltage Circuit Voltage Below Threshold

DTC

C14C017

Servo Pressure Sensor Power Supply Voltage Circuit Voltage Above Threshold

DTC

C14D016

Accumulator Pressure Sensor Power Supply Voltage Circuit Voltage Below Threshold

DTC

C14D017

Accumulator Pressure Sensor Power Supply Voltage Circuit Voltage Above Threshold

DESCRIPTION

HINT:

Brake pressure sensor "C": Accumulator pressure sensor
Brake pressure sensor "D": Reaction force pressure sensor
Brake pressure sensor "E": Servo pressure sensor

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
C057300	Brake Pressure Sensor "C" Malfunction	Data from the sensor is invalid for 0.8 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C0573 (Case 3) Output ECU: Both skid control ECUs
C05731F	Brake Pressure Sensor "C" Circuit Intermittent	Fluctuation of the sensor signal exceeds the threshold (7.5 MPa (76.5 kgf/cm², 1088 psi) or more from the previous value) for 0.1 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C14D3 Output ECU: Both skid control ECUs
C057331	Brake Pressure Sensor "C" No Signal	Communication with the sensor is invalid for 0.2 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C0573 (Case 1) Output ECU: Both skid control ECUs
C057396	Brake Pressure Sensor "C" Component Internal Failure	A malfunction is detected by self-diagnosis function of the sensor.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C0573 (Case 2) Output ECU: Both skid control ECUs
C057700	Brake Pressure Sensor "D" Malfunction	Data from the sensor is invalid for 0.2 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C0577 (Case 3) Output ECU: Both skid control ECUs
C05771F	Brake Pressure Sensor "D" Circuit Intermittent	Fluctuation of the sensor signal exceeds the threshold (7.5 MPa (76.5 kgf/cm², 1088 psi) or more from the previous value) for 0.1 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C14B4 Output ECU: Both skid control ECUs
C057731	Brake Pressure Sensor "D" No Signal	Communication with the sensor is invalid for 0.05 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C0577 (Case 1) Output ECU: Both skid control ECUs
C057796	Brake Pressure Sensor "D" Component Internal Failure	A malfunction is detected by self-diagnosis function of the sensor.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C0577 (Case 2) Output ECU: Both skid control ECUs
C05A100	Brake Pressure Sensor "E" Malfunction	Data from the sensor is invalid for 0.2 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C05A1 (Case 3) Output ECU: Both skid control ECUs
C05A11F	Brake Pressure Sensor "E" Circuit Intermittent	Fluctuation of the sensor signal exceeds the threshold (7.5 MPa (76.5 kgf/cm², 1088 psi) or more from the previous value) for 0.1 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C14C4 Output ECU: Both skid control ECUs
C05A131	Brake Pressure Sensor "E" No Signal	Communication with the sensor is invalid for 0.05 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C05A1 (Case 1) Output ECU: Both skid control ECUs
C05A196	Brake Pressure Sensor "E" Component Internal Failure	A malfunction is detected by self-diagnosis function of the sensor.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C05A1 (Case 2) Output ECU: Both skid control ECUs
C14B016	Brake Pressure Sensor "D" Power Supply Voltage Circuit Voltage Below Threshold	The supplied voltage to the sensor is less than a certain value for 0.05 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C1496 Output ECU: Both skid control ECUs
C14B017	Brake Pressure Sensor "D" Power Supply Voltage Circuit Voltage Above Threshold	The supplied voltage to the sensor is a certain value or more for 0.05 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C1497 Output ECU: Both skid control ECUs
C14C016	Servo Pressure Sensor Power Supply Voltage Circuit Voltage Below Threshold	The supplied voltage to the sensor is less than a certain value for 0.05 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C1498 Output ECU: Both skid control ECUs
C14C017	Servo Pressure Sensor Power Supply Voltage Circuit Voltage Above Threshold	The supplied voltage to the sensor is a certain value or more for 0.05 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C1499 Output ECU: Both skid control ECUs
C14D016	Accumulator Pressure Sensor Power Supply Voltage Circuit Voltage Below Threshold	The supplied voltage to the sensor is less than a certain value for 0.05 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C149E Output ECU: Both skid control ECUs
C14D017	Accumulator Pressure Sensor Power Supply Voltage Circuit Voltage Above Threshold	The supplied voltage to the sensor is a certain value or more for 0.05 seconds or more.	No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C149F Output ECU: Both skid control ECUs

MONITOR DESCRIPTION

C0573 (Case 1), C0577 (Case 1) and C05A1 (Case 1):

When an invalid serial communication signal is detected, the No. 2 skid control ECU (brake actuator assembly) judges that communication is abnormal and illuminates the MIL and stores a DTC.

C0573 (Case 2), C0577 (Case 2) and C05A1 (Case 2):

When the pressure or temperature of a brake fluid pressure sensor exceeds a certain value, the No. 2 skid control ECU (brake actuator assembly) judges that the internal data is abnormal and illuminates the MIL and stores a DTC.

C0573 (Case 3), C0577 (Case 3) and C05A1 (Case 3):

When the master cylinder pressure sensor data is invalid, the No. 2 skid control ECU (brake actuator assembly) judges that there is a malfunction, the MIL is illuminated and a DTC is stored.

C1496, C1498 and C149E:

When the master cylinder pressure sensor voltage is a certain value or less, the No. 2 skid control ECU (brake actuator assembly) judges that there is a malfunction, the MIL is illuminated and a DTC is stored.

C1497, C1499 and C149F:

When the supply voltage of the master cylinder pressure sensor is a certain value or more, the No. 2 skid control ECU (brake actuator assembly) judges that there is a malfunction, the MIL is illuminated and a DTC is stored.

C14B4, C14C4 and C14D3:

When the difference between the previous value and current value of each brake fluid pressure sensor is excessively large, the No. 2 skid control ECU (brake actuator assembly) judges that the sensor output is invalid, the MIL is illuminated and a DTC is stored.

MONITOR STRATEGY

Related DTCs	C0573 (Case 1): Accumulator pressure sensor lost communication C0573 (Case 2): Accumulator pressure sensor internal malfunction C0573 (Case 3): Accumulator pressure sensor invalid data C0577 (Case 1): Reaction force pressure sensor lost communication C0577 (Case 2): Reaction force pressure sensor internal malfunction C0577 (Case 3): Reaction force pressure sensor invalid data C05A1 (Case 1): Servo pressure sensor lost communication C05A1 (Case 2): Servo pressure sensor internal malfunction C05A1 (Case 3): Servo pressure sensor invalid data C1496: Reaction force pressure sensor voltage circuit low C1497: Reaction force pressure sensor voltage circuit high C1498: Servo pressure sensor voltage circuit low C1499: Servo pressure sensor voltage circuit high C149E: Accumulator pressure sensor voltage circuit low C149F: Accumulator pressure sensor voltage circuit high C14B4: Reaction force pressure sensor intermittent/erratic C14C4: Servo pressure sensor intermittent/erratic C14D3: Accumulator pressure sensor intermittent/erratic
Required Sensors/Components(Main)	No. 2 skid control ECU (brake actuator assembly) Brake actuator (brake booster with master cylinder assembly) Brake actuator assembly
Required Sensors/Components(Related)	No. 2 skid control ECU (brake actuator assembly) Brake actuator (brake booster with master cylinder assembly) Brake actuator assembly
Frequency of Operation	Continuous
Duration	0.054 seconds: C0573 (Case 2), C0577 (Case 1 and 2), C05A1 (Case 1 and 2), C1496, C1497, C1498, C1499, C149E and C149F 0.096 seconds: C14B4, C14C4 and C14D3 0.198 seconds: C0573 (Case 1), C0577 (Case 3) and C05A1 (Case 3) 0.798 seconds: C0573 (Case 3)
MIL Operation	Immediately
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

C0573 (Case 1)

Monitor runs whenever the following DTCs are not stored	C149E: Accumulator pressure sensor voltage circuit low C149F: Accumulator pressure sensor voltage circuit high
All of the following conditions are met	-
Pressure sensor start state	Valid
Master cylinder pressure sensor power supply voltage	Higher than 6.5 V, and less than 7.5 V
Master cylinder pressure sensor temperature	175°C (347°F) or less
Master cylinder pressure sensor current	Less than 50.00 mA

C0573 (Case 2)

Monitor runs whenever the following DTCs are not stored	C149E: Accumulator pressure sensor voltage circuit low C149F: Accumulator pressure sensor voltage circuit high
All of the following conditions are met	-
Communication with pressure sensor	Valid
Pressure sensor start state	Valid
Master cylinder pressure sensor power supply voltage	Higher than 6.5 V, and less than 7.5 V
Master cylinder pressure sensor temperature	175°C (347°F) or less
Master cylinder pressure sensor current	Less than 50.00 mA

C0573 (Case 3), C0577 (Case 3) and C05A1 (Case 3)

Monitor runs whenever the following DTCs are not stored	None
All of the following conditions are met	-
Brake system voltage 1	Higher than 8.50 V
Communication with pressure sensor	Valid
Master cylinder pressure sensor power supply voltage	Higher than 6.5 V, and less than 7.5 V
Pressure sensor fail (C1497, C149F, C1499)	Not detected
Pressure sensor fail (C1496, C149E, C1498)	Not detected
Communication with pressure sensor	Valid
Pressure sensor fail (C0577, C0573, C05A1)	Not detected
Pressure sensor fail (C14B4, C14D3, C14C4)	Not detected

C0577 (Case 1)

Monitor runs whenever the following DTCs are not stored	C1496: Reaction force pressure sensor voltage circuit low C1497: Reaction force pressure sensor voltage circuit high
All of the following conditions are met	-
Pressure sensor start state	Valid
Master cylinder pressure sensor power supply voltage	Higher than 6.5 V, and less than 7.5 V
Master cylinder pressure sensor temperature	175°C (347°F) or less
Master cylinder pressure sensor current	Less than 50.00 mA

C0577 (Case 2)

Monitor runs whenever the following DTCs are not stored	C1496: Reaction force pressure sensor voltage circuit low C1497: Reaction force pressure sensor voltage circuit high
All of the following conditions are met	-
Communication with pressure sensor	Valid
Pressure sensor start state	Valid
Master cylinder pressure sensor power supply voltage	Higher than 6.5 V, and less than 7.5 V
Master cylinder pressure sensor temperature	175°C (347°F) or less
Master cylinder pressure sensor current	Less than 50.00 mA

C05A1 (Case 1)

Monitor runs whenever the following DTCs are not stored	C1498: Servo pressure sensor voltage circuit low C1499: Servo pressure sensor voltage circuit high
All of the following conditions are met	-
Pressure sensor start state	Valid
Master cylinder pressure sensor power supply voltage	Higher than 6.5 V, and less than 7.5 V
Master cylinder pressure sensor temperature	175°C (347°F) or less
Master cylinder pressure sensor current	Less than 50.00 mA

C05A1 (Case 2)

Monitor runs whenever the following DTCs are not stored	C1498: Servo pressure sensor voltage circuit low C1499: Servo pressure sensor voltage circuit high
All of the following conditions are met	-
Communication with pressure sensor	Valid
Pressure sensor start state	Valid
Master cylinder pressure sensor power supply voltage	Higher than 6.5 V, and less than 7.5 V
Master cylinder pressure sensor temperature	175°C (347°F) or less
Master cylinder pressure sensor current	Less than 50.00 mA

C1496, C1498 and C149E

Monitor runs whenever the following DTCs are not stored	C1499: Servo pressure sensor voltage circuit high C14C7 (Case 3 to 9): Brake system voltage circuit low
Both of the following conditions are met	-
Pressure sensor start state	Valid
Brake system voltage 1	Higher than 8.5 V

C1497, C1499 and C149F:

Monitor runs whenever the following DTCs are not stored

None

C14B4, C14C4 and C14D3

Monitor runs whenever the following DTCs are not stored	C05A1 (Case 1): Servo pressure sensor lost communication C05A1 (Case 2): Servo pressure sensor internal malfunction C05A1 (Case 3): Servo pressure sensor invalid data C1496: Reaction force pressure sensor voltage circuit low C1497: Reaction force pressure sensor voltage circuit high
All of the following conditions are met	-
Communication with pressure sensor	Valid
Pressure sensor start state	Valid
Master cylinder pressure sensor power supply voltage	Higher than 6.5 V, and less than 7.5 V
Master cylinder pressure sensor temperature	175°C (347°F) or less
Master cylinder pressure sensor current	Less than 50.00 mA

TYPICAL MALFUNCTION THRESHOLDS

C0573 (Case 1), C0577 (Case 1) and C05A1 (Case 1)

Communication with pressure sensor

Invalid

C0573 (Case 2), C0577 (Case 2) and C05A1 (Case 2)

Either of the following conditions is met	-
Reaction force pressure sensor value	Higher than 23.328 MPa (237.9 kgf/cm², 3383 psi)
Reaction force pressure temp sensor value	Higher than 150°C (302°F)

C0573 (Case 3), C0577 (Case 3) and C05A1 (Case 3)

Master cylinder pressure sensor data valid

Invalid

C1496, C1498 and C149E

Master cylinder pressure sensor power supply voltage

6.5 V or less

C1497, C1499 and C149F

All of the following conditions are met	-
Pressure sensor start state	Invalid
Master cylinder pressure sensor power supply voltage	7.5 V or more

C14B4, C14C4 and C14D3

Difference between current pressure and last pressure

Higher than 7.50 MPa (76.5 kgf/cm², 1088 psi)

COMPONENT OPERATING RANGE

C0573 (Case 1), C0577 (Case 1) and C05A1 (Case 1)

All of the following conditions are met	-
Pressure sensor start state	Valid
Master cylinder pressure sensor power supply voltage	Higher than 6.5 V, and less than 7.5 V
Master cylinder pressure sensor temperature	175°C (347°F) or less
Master cylinder pressure sensor current	Less than 50.00 mA
Communication with pressure sensor	Valid

C0573 (Case 2), C0577 (Case 2) and C05A1 (Case 2)

All of the following conditions are met	-
Communication with pressure sensor	Valid
Pressure sensor start state	Valid
Master cylinder pressure sensor power supply voltage	Higher than 6.5 V, and less than 7.5 V
Master cylinder pressure sensor temperature	175°C (347°F) or less
Master cylinder pressure sensor current	Less than 50.00 mA
Reaction force pressure sensor value	23.328 MPa (237.9 kgf/cm², 3383 psi) or less
Reaction force pressure temp sensor value	150°C (302°F) or less

C0573 (Case 3), C0577 (Case 3) and C05A1 (Case 3)

All of the following conditions are met	-
Brake system voltage 1	Higher than 8.50 V
Communication with pressure sensor	Valid
Master cylinder pressure sensor power supply voltage	Higher than 6.5 V, and less than 7.5 V
Master cylinder pressure sensor data valid	Valid

C1496, C1497, C1498, C1499, C149E and C149F

All of the following conditions are met	-
Pressure sensor start state	Valid
Master cylinder pressure sensor power supply voltage	Higher than 6.5 V, and less than 7.5 V
Master cylinder pressure sensor temperature	175°C (347°F) or less
Master cylinder pressure sensor current	Less than 50.00 mA

C14B4, C14C4 and C14D3

All of the following conditions are met	-
Communication with pressure sensor	Valid
Pressure sensor start state	Valid
Master cylinder pressure sensor power supply voltage	Higher than 6.5 V, and less than 7.5 V
Master cylinder pressure sensor temperature	175°C (347°F) or less
Master cylinder pressure sensor current	Less than 50.00 mA
Difference between current pressure and last pressure	7.50 MPa (76.5 kgf/cm², 1088 psi) or less

CONFIRMATION DRIVING PATTERN

NOTICE:

When performing the normal judgment procedure, make sure that the driver door is closed and is not opened at any time during the procedure.

HINT:

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off.
Turn the ignition switch to ON (READY) and turn the GTS on.
Fully depress the brake pedal. [*]
HINT:

[*]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
Enter the following menus: Chassis / Brake/EPB / Utility / All Readiness.
Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE, perform driving pattern again.

CAUTION / NOTICE / HINT

NOTICE:

After replacing the No. 1 skid control ECU (brake booster with master cylinder assembly), perform "Calibration" after performing "Reset Memory".

Click here

PROCEDURE

1.	REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY

Click here

END