DTC P05DB-00: Brake Pedal Position Sensor "B"; DTC P05E0-00: Brake Pedal Position Sensor "A"/"B" [01/2025 - ]: Procedure

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).

• 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 V	Brake 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 V	Brake 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)	0.96 to 1.67	3.33 to 4.04
  100 (10, 22.5)	1.14 to 1.86	3.14 to 3.86
  150 (15, 33.7)	1.23 to 1.95	3.05 to 3.77

  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 [12/2022 - ]

Result: 

C 

See step  3

Result: 

B 

See step  2

Pre-procedure1

• Turn the ignition switch off.

• 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 A3 No. 1 skid control ECU (brake booster with master cylinder assembly) connector.
• Disconnect the A97 brake pedal stroke sensor assembly connector.

• Check both the connector case and the terminals for deformation and corrosion.

  OK

  No deformation or corrosion.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  A3-29 (SKS1) - A97-6 (SKS1)	Always	Below 1 Ω	Ω
  A3-29 (SKS1) or A97-6 (SKS1) - Body ground	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE BRAKE PEDAL STROKE SENSOR ASSEMBLY 

Refer to REMOVAL [03/2023 - ]

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Pre-procedure1

• Turn the ignition switch off.

• 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 A4 No. 2 skid control ECU (brake actuator assembly) connector.
• Disconnect the A97 brake pedal stroke sensor assembly connector.

• Check both the connector case and the terminals for deformation and corrosion.

  OK

  No deformation or corrosion.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  A4-10 (SKS2) - A97-1 (SKS2)	Always	Below 1 Ω	Ω
  A4-10 (SKS2) or A97-1 (SKS2) - Body ground	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE BRAKE PEDAL STROKE SENSOR ASSEMBLY 

Refer to REMOVAL [03/2023 - ]

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR