AutoCodes – Mercedes-Benz – P0553 Mercedes-Benz

P0553 Mercedes-Benz Code - Power Steering Pressure Sensor Circuit High Input

Quick Answer

Power steering pressure (PSP) sensor is installed to the power steering high-pressure tube and detects a power steering load. Common causes include Faulty Power Steering Pressure Sensor, Power Steering Pressure Sensor harness is open or shorted, Power Steering Pressure Sensor circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P0553 Mercedes-Benz indicates Power Steering Pressure Sensor Circuit High Input.
Common causes: Common causes include Faulty Power Steering Pressure Sensor, Power Steering Pressure Sensor harness is open or shorted, Power Steering Pressure Sensor circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 4,037

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0553 Mercedes-Benz Description

Power steering pressure (PSP) sensor is installed to the power steering high-pressure tube and detects a power steering load. This sensor is a potentiometer which transforms the power steering load into output voltage, and emits the voltage signal to the Engine Control Module (ECM). The ECM controls the electric throttle control actuator and adjusts the throttle valve opening angle to increase the engine speed and adjusts the idle speed for the increased load.

OBDII Code P0553 Mercedes-Benz - Power Steering Pressure Sensor Circuit High Input - AutoCodes.com — P0553 Mercedes-Benz Code - Power Steering Pressure Sensor Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0553 Mercedes-Benz?

Faulty Power Steering Pressure Sensor
Power Steering Pressure Sensor harness is open or shorted
Power Steering Pressure Sensor circuit poor electrical connection

How to Fix the DTC P0553 Mercedes-Benz?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0553 Mercedes-Benz code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0553 Mercedes-Benz code?

Need more information on how to fix the P0553 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0553 Mercedes-Benz code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0553 Mercedes-Benz Code

1. What are the common symptoms of OBDII code P0553 in a Mercedes-Benz related to the power steering pressure sensor circuit high input?

- Common symptoms may include stiff or heavy steering, power steering failure, illuminated power steering warning light on the dashboard, and potential loss of power steering assistance.

2. What can cause the OBDII code P0553, indicating a high input in the power steering pressure sensor circuit of a Mercedes-Benz?

- The code P0553 can be triggered by issues such as a faulty power steering pressure sensor, damaged wiring or connectors in the sensor circuit, low power steering fluid level, or a problem with the power steering pump.

3. How should I diagnose the OBDII code P0553 in a Mercedes-Benz with the power steering pressure sensor circuit high input issue?

- Diagnosis typically involves inspecting the power steering pressure sensor and its wiring, checking the power steering fluid level, and testing the power steering pump to identify the root cause of the high input condition.

4. Can driving with the OBDII code P0553 in a Mercedes-Benz be dangerous?

- Driving with the code P0553 can be risky as it may lead to sudden loss of power steering assistance, making steering more difficult and increasing the chances of accidents. It is advisable to address the issue promptly.

5. Are there any DIY repair tips for resolving the OBDII code P0553 indicating a high input in the power steering pressure sensor circuit of a Mercedes-Benz?

- DIY repair tips may include checking and topping up the power steering fluid, inspecting the wiring and connectors for any visible damage, and replacing the power steering pressure sensor if necessary. However, professional diagnosis and repair are recommended for accurate resolution.

6. How much does it typically cost to repair the OBDII code P0553 related to the power steering pressure sensor circuit high input in a Mercedes-Benz?

- Repair costs can vary depending on the exact cause of the issue and the required parts and labor. It is advisable to consult a professional mechanic or dealership for an accurate estimate based on your vehicle's specific condition.

7. Can resetting the OBDII code P0553 in a Mercedes-Benz resolve the power steering pressure sensor circuit high input problem?

- Simply resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the high input in the power steering pressure sensor circuit. The root cause should be identified and addressed for a permanent solution.

8. Is it safe to continue driving my Mercedes-Benz with the power steering pressure sensor circuit high input issue if I cannot repair it immediately?

- It is not recommended to drive the vehicle with the power steering pressure sensor circuit high input problem, as it can lead to unsafe driving conditions and potential steering failure. It is best to address the issue promptly to ensure safe operation.

9. How long does it usually take to repair the OBDII code P0553 in a Mercedes-Benz related to the power steering pressure sensor circuit high input?

- The repair time can vary depending on the specific cause of the high input condition. Minor issues like sensor replacement or wiring repairs may take a few hours, while more complex problems could require more time for diagnosis and resolution.

10. Will the OBDII code P0553 in a Mercedes-Benz affect the overall performance of the vehicle, aside from the power steering system?

- While the primary impact of the code P0553 is related to the power steering system, unresolved issues with the power steering pressure sensor circuit can affect overall vehicle performance, safety, and drivability. It is essential to address the problem promptly.