Description of the P0553 fault code.
OBD2 Error Codes

P0553 High signal level of the pressure sensor in the power steering system

26.05.2022 /

P0553 – OBD-II Trouble Code Technical Description

Trouble code P0553 indicates that the PCM has detected a high signal from the power steering pressure sensor.

What does the fault code mean P0553?

Trouble code P0553 indicates a problem with the power steering pressure sensor. This sensor is responsible for measuring the pressure in the power steering hydraulic system. When this error appears, the Check Engine light will light up on the vehicle's dashboard. The power steering pressure sensor makes driving easier by telling the car's computer how much force is required to turn the steering wheel a certain angle. The PCM simultaneously receives signals from both this sensor and the steering angle sensor. If the PCM detects that the signals from both sensors are out of sync, a P0553 code will appear.

Fault code P0553.

Possible reasons

Some possible reasons for the P0553 trouble code:

  • Defective Power Steering Pressure Sensor: The sensor may be damaged or failed due to wear or external influences.
  • Wiring or Connections: Bad or broken wires, or improper connections between the sensor and the PCM can cause this error.
  • Problems with the PCM: Problems with the PCM itself, such as corrosion or electrical failures, can cause the P0553 code to appear.
  • Low Hydraulic Fluid Level: Insufficient hydraulic fluid level in the power steering system can cause the pressure sensor to read incorrectly.
  • Problems with the power steering system itself: Problems with the hydraulic system, such as leaks, clogs, or faulty valves, can cause the P0553 code.

These are just some of the possible causes, and the real cause can only be determined after diagnosing the vehicle.

What are the symptoms of a fault code? P0553?

Some possible symptoms that may occur when the P0553 trouble code appears:

  • Difficulty Steering: The vehicle may be difficult to control due to lack of or insufficient assistance from the power steering system.
  • Noise or knocking in the power steering system: If the pressure in the power steering system is not maintained correctly, it may cause abnormal sounds such as noise or knocking.
  • Increased effort when turning the steering wheel: Turning the steering wheel may require more effort than normal due to insufficient effort provided by the power steering system.
  • Check Engine Light: When the P0553 code appears, the Check Engine Light will turn on on your vehicle's dashboard.

How to diagnose a fault code P0553?

To diagnose DTC P0553, you can follow these steps:

  1. Using a scanner to read trouble codes: First, connect the scanner to your vehicle's OBD-II diagnostic port and read the trouble codes. If a P0553 code is detected, this will confirm a problem with the power steering pressure sensor.
  2. Visual Inspection: Inspect the wires and connections leading to the power steering pressure sensor. Make sure the wires are intact, not damaged or corroded, and connected correctly.
  3. Checking the Hydraulic Fluid Level: Check the hydraulic fluid level in the power steering system reservoir. Make sure the fluid level is as recommended.
  4. Pressure Sensor Test: Using a multimeter, check the resistance of the power steering pressure sensor. Compare the values ​​obtained with the manufacturer's recommendations.
  5. Additional diagnostics: If necessary, perform additional tests, such as checking the power steering system for leaks or malfunctions.

Diagnostic errors

When diagnosing DTC P0553, the following errors may occur:

  • Faulty Wire Diagnostics: If the power steering pressure sensor wires have not been properly tested for continuity or corrosion, a misdiagnosis may result.
  • Incorrect interpretation of sensor data: If the operating conditions of the pressure sensor or its characteristics are not taken into account, errors may occur when interpreting the received data.
  • Faulty Sensor Diagnostics: Incorrectly measuring resistance or checking the operation of the sensor can lead to incorrect conclusions about its condition.
  • Faulty other components: Sometimes the problem may not be with the sensor itself, but with other components of the power steering system, such as the pump or valves. Incorrect exclusion or incomplete detection of problematic components can lead to diagnostic errors.

To avoid mistakes when diagnosing the P0553 trouble code, it is important to follow diagnostic procedures, including carefully inspecting all related components and using diagnostic equipment correctly.

How serious is the fault code? P0553?

Trouble code P0553 indicates a problem with the power steering pressure sensor. This may cause the power steering system to malfunction, which in turn may affect the vehicle's handling.

Although this code is not critical to driving safety, ignoring it can lead to additional problems with driving, especially when maneuvering at low speeds or when parking.

Therefore, it is recommended that you take steps to resolve the P0553 trouble code as soon as possible to prevent potential drivability problems and ensure the safe operation of your vehicle.

What repair will help eliminate the code? P0553?

Troubleshooting DTC P0553 typically involves the following steps:

  1. Checking the power steering pressure sensor: First, check the sensor itself for damage, corrosion, or other visible defects. If necessary, the sensor may need to be replaced.
  2. Checking electrical connections: To ensure proper operation of the sensor, you must ensure that the electrical connections, including wires and connectors, are intact and working properly. If necessary, they should be cleaned or replaced.
  3. Diagnosis of the power steering system: In addition to the sensor, problems with the power steering system itself, such as pump or valve problems, can cause the P0553 code. Diagnosing the system may require specialized equipment.
  4. Replacement of faulty components: If damage or malfunction of the pressure sensor or other components of the power steering system is detected, they should be replaced with new, working ones.
  5. Re-Diagnosis and Inspection: After repair work has been completed, re-diagnose and check that the P0553 code no longer appears.

In case of difficulties or the need for accurate diagnosis, it is recommended to contact a professional auto mechanic or car service center for repair work.

What is P0553 Engine Code [Quick Guide]

P0553 – Brand-specific information

Trouble code P0553 relates to the power steering system and can apply to various makes of cars, the meaning for some of them is:

These are just a few examples and the meaning may vary slightly depending on the specific model and year of the vehicle. For more accurate information, it is recommended that you consult the service manual for your specific vehicle make and model.

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