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2024 TOYOTA CAMRY
2.5L I4•FWD•AUTOMATIC•gas•A25A-FKS
1 active safety recall on this vehicle — view recalls
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Repairs413Labor483Torque4163Fluid7DTC1590Battery1Maintenance0Recalls1
P0557high severityPowertrain

Brake Booster Pressure Sensor Circuit Low

on 2024 Toyota Camry 2.5L I4 · FWD

What this code means

The signal voltage from the brake booster pressure sensor is lower than the expected threshold. This often points to a short to ground or a failed sensor.

Symptoms

  • Brake warning light on
  • Reduced brake assist
  • Stiff brake pedal

Common causes

  • Short to ground in sensor wiring
  • Faulty pressure sensor
  • Corroded connector
  • PCM signal fault

Diagnostic steps

  1. Retrieve trouble codes
  2. Check sensor signal voltage
  3. Inspect wiring for shorts to ground
  4. Replace sensor if circuit checks good
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Other Powertrain codes on this vehicle

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