P0553 – OBD-II DTC

OBD-II DTC P0553 – Power Steering Pressure Sensor Circuit Low Input

DTC P0553 meaning

DTC P0553 refers to a diagnostic trouble code indicating a low input signal from the power steering pressure sensor circuit. This sensor monitors the hydraulic pressure in the power steering system and sends this information to the engine control module (ECM). A low input signal suggests that the ECM is not receiving the expected voltage or signal from the sensor, which can affect the performance of the power steering system.

DTC P0553 symptoms

Common symptoms associated with DTC P0553 may include:

• Illuminated check engine light
• Increased steering effort, especially at low speeds
• Unusual noises from the power steering pump
• Erratic power steering assist
• Potential overheating of the power steering fluid

DTC P0553 causes

Several factors can lead to the occurrence of DTC P0553, including:

• Faulty power steering pressure sensor
• Wiring issues, such as damaged or corroded connectors
• Short circuits or open circuits in the sensor circuit
• Low power steering fluid levels
• Faulty engine control module (ECM)

DTC P0553 seriousness

The seriousness of DTC P0553 can vary depending on the symptoms and the vehicle’s condition. While it may not cause immediate safety concerns, it can lead to:

• Increased difficulty in steering, especially in tight maneuvers
• Potential damage to the power steering pump
• Increased wear on steering components
• Reduced overall vehicle control

It is advisable to address this code promptly to avoid further complications.

How to diagnose DTC P0553

To diagnose DTC P0553, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the P0553 code.
2. Inspect the power steering pressure sensor and its wiring for any visible damage or corrosion.
3. Check the power steering fluid level and condition.
4. Test the voltage output of the power steering pressure sensor using a multimeter.
5. Examine the ECM for any related trouble codes that may provide additional context.
6. Perform a continuity test on the wiring between the sensor and the ECM.

How to fix DTC P0553 step-by-step instructions

To fix DTC P0553, follow these step-by-step instructions:

1. Ensure the vehicle is turned off and safely secured.
2. Inspect the power steering pressure sensor and wiring for any signs of damage or corrosion.
3. If the sensor is faulty, replace it with a new one.
4. Repair any damaged wiring or connectors found during the inspection.
5. Refill the power steering fluid if levels are low, and check for leaks.
6. Reconnect any disconnected components and ensure all connections are secure.
7. Start the vehicle and check for any remaining trouble codes using the OBD-II scanner.

How to erase DTC P0553

To erase DTC P0553 from the vehicle’s computer, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the trouble codes section on the scanner.
4. Select the option to clear or erase the codes.
5. Confirm the action and wait for the scanner to indicate that the codes have been cleared.
6. Disconnect the scanner and start the vehicle to ensure the check engine light does not reappear.

Recommended tools for OBD-II diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.