DTC P057A-00: Brake Pedal Position Sensor "A"; DTC P05E0-62: Brake Pedal Position Sensor "A"/"B" Signal Compare Failure [02/2024 - ]: Procedure
- READ VALUE USING GTS (BRAKE PEDAL STROKE SENSOR ASSEMBLY)
Pre-procedure1
- Mount a pedal effort gauge.
- Turn the ignition switch to ON (READY) and depress the brake pedal once.
HINT:
Depress the brake pedal after turning the ignition switch to ON (READY) to set the vehicle to linear mode (switching solenoid (SSA) on).
Procedure1
- Depress the brake pedal slowly and check the brake pedal stroke sensor assembly output voltages with respect to brake pedal depression force.
Chassis > Brake Booster > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note Stroke Sensor Brake pedal stroke sensor 1 Min.: 0.0 V
Max.: 5.0 VBrake pedal released: 0.6 to 1.4 V Reading increases when brake pedal is depressed Chassis > Brake Booster > Data List
Tester Display Stroke Sensor Chassis > Brake/EPB > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note Stroke Sensor2 Brake pedal stroke sensor 2 Min.: 0.0 V
Max.: 5.0 VBrake pedal released: 3.6 to 4.4 V Reading decreases when brake pedal is depressed Chassis > Brake/EPB > Data List
Tester Display Stroke Sensor2 HINT:
Perform this procedure in linear mode (switching solenoid (SSA) on).
Standard Voltage
Brake Effort
[N (kgf, lbf)]Stroke Sensor
[V]Stroke Sensor2
[V]50 (5, 11.2) 1.18 to 1.88 3.12 to 3.82 100 (10, 22.5) 1.36 to 2.06 2.94 to 3.64 150 (15, 33.7) 1.54 to 2.24 2.76 to 3.46 Result
Result Proceed to OK A NG (brake pedal stroke sensor 1) B NG (brake pedal stroke sensor 2) C Post-procedure1
- None
Result:
A
USE SIMULATION METHOD TO CHECK
Refer to HOW TO PROCEED WITH TROUBLESHOOTING [02/2024 - ]
Result:
C
See step 3
Result:
B
See step 2
- CHECK HARNESS AND CONNECTOR (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY - BRAKE PEDAL STROKE SENSOR ASSEMBLY)
Pre-procedure1
- Turn the ignition switch off.
Procedure1
- Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK
The connector is securely connected.
Pre-procedure2
- Disconnect the A48 No. 1 skid control ECU (brake booster with master cylinder assembly) connector.
- Disconnect the A45 brake pedal stroke sensor assembly connector.
Procedure2
- Check both the connector case and the terminals for deformation and corrosion.
OK
No deformation or corrosion.
Procedure3
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A48-3 (SKS1) - A45-6 (SKS1) Always Below 1 Ω A48-3 (SKS1) or A45-6 (SKS1) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG Post-procedure1
- None
Result:
OK
REPLACE BRAKE PEDAL STROKE SENSOR ASSEMBLY
Refer to REMOVAL [02/2024 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- Turn the ignition switch off.
- CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - BRAKE PEDAL STROKE SENSOR ASSEMBLY)
Pre-procedure1
- Turn the ignition switch off.
Procedure1
- Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK
The connector is securely connected.
Pre-procedure2
- Disconnect the A49 No. 2 skid control ECU (brake actuator assembly) connector.
- Disconnect the A45 brake pedal stroke sensor assembly connector.
Procedure2
- Check both the connector case and the terminals for deformation and corrosion.
OK
No deformation or corrosion.
Procedure3
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A49-10 (SKS2) - A45-1 (SKS2) Always Below 1 Ω A49-10 (SKS2) or A45-1 (SKS2) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG Post-procedure1
- None
Result:
OK
REPLACE BRAKE PEDAL STROKE SENSOR ASSEMBLY
Refer to REMOVAL [02/2024 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- Turn the ignition switch off.