P0551 OBD-II Trouble Code: Power Steering Pressure Sensor Circuit Range/Performance

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P0551 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0551 code

P0551 is a diagnostic trouble code (DTC) for "Power Steering Pressure Sensor Circuit Range/Performance". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
SCHEDULE P0551 DIAGNOSTIC Get a fair and transparent estimate upfront

Check Engine Light

P0551 code definition

The definition of the P0551 trouble code is that the power steering pressure sensor circuit range/performance is compromised or malfunctioning.

What the P0551 code means

When this code set it means that the powertrain control module did not receive the correct voltage input signal from the power steering pressure sensor. Most of the time, this issue will occur at lower vehicle speeds. Some types of vehicles will need to have multiple failure cycles for this to cause the Check Engine light to come on. However, after the first failure, the trouble code should be stored in the onboard computer.

What causes the P0551 code?

Some of the most common causes of the P0551 code are as follows:

  • Dirty power steering fluid
  • Malfunction of the power steering system
  • Problems with the wiring or connector for the power steering pressure sensor
  • Power steering pressure sensor could be defective

What are the symptoms of the P0551 code?

Here are some of the most common symptoms that drivers noticed with the P0551 trouble code:

  • Vehicle performance problems
  • Decrease in fuel economy
  • Drivers may notice a power steering fluid leak
  • Check Engine light may come on
  • A vehicle may stall when driving at slow speeds and turning the steering wheel
  • In rare instances, the driver may not notice any issues at all with the vehicle

How does a mechanic diagnose the P0551 code?

When they are diagnosing the P0551 code, the mechanic will record the information stored in the onboard computer with their scanner. They will then reset the code and test the vehicle to see if the code returns. If it is not a false alarm, they will then try to pinpoint the actual problem with the vehicle and make the necessary repairs to remove the code.

Common mistakes when diagnosing the P0551 code

Because of the possibility of the engine stalling when driving and turning at low speeds, many will mistakenly blame the idle air control system for the issue rather than the power steering pressure sensor circuit and issues with the power steering system.

It is always a good idea for mechanics to fully diagnose and explore the potential problems with the vehicle so they can find the exact cause and repair it properly. One of the first things the mechanic will likely want to consider is the power steering fluid. They want to make sure there is enough, and that it is clean.

How serious is the P0551 code?

The P0551 code can be quite problematic. In many cases, the vehicle is going to suffer from some serious performance issues. In addition to possibly having a power steering fluid leak, it is also possible that the fuel economy for the vehicle is not quite as robust as it used to be. One of the most troubling aspects of the P0551 code is that those vehicles that have the code stored often have trouble when it comes to stalling out during low-speed vehicle maneuvers. This has the potential to be very dangerous, therefore getting the code fixed and the vehicle repaired as quickly as possible is essential.

What repairs can fix the P0551 code?

The following are some of potential repairs that can be used to fix the P0551 code:

  • Scanning the vehicle, resetting the code, and testing to see if it comes back
  • Changing the power steering fluid
  • Replacing corroded wires or connectors
  • Repair or replace the power steering system
  • Repair or replace the power steering pressure sensor circuit

Additional comments for consideration regarding the P0551 code

Since these issues presented by the P0551 code can be dangerous, it is important to have them taken care of immediately. Get the problem checked out by a certified mechanic as quickly as you can to reduce the risk of further problems.

Need help with a P0551 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

trouble codes
Check Engine Light
P0551

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P0551 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.5/5

Number of Reviews

3,526

Rating Summary
3,215
155
41
23
92
3,215
155
41
23
92

Kinder

18 years of experience
40 reviews
Kinder
18 years of experience
Exceeded my expectations... The weather knocked my appointment off track a couple of times, but Kinder's constant updates and timely communication made it a non-issue. He Made it to our rescheduled appointment a little earlier than scheduled ready to go. Before beginning any work he explained the process, confirmed what I wanted done and how it worked. Upon finishing.. he test drove vehicle and explained to me "what" he had done and what was discovered causing the issues. He didn't bash my prior mechanics he just explained that some vehicles need a little more knowledge than others...If my long winded comment is any indication... as I stated earlier, my expectations were exceeded. For those of you, like myself , who totally enjoy your European car but not the sometimes sticker shock of maintenance... i strongly encourage you to try this service and I strongly urge you to request Kinder... You can thank me later. Royce
2007 MERCEDES-BENZ S550 - CHECK ENGINE LIGHT IS ON - MABLETON, GEORGIA

Chris

19 years of experience
1240 reviews
Chris
19 years of experience
Service was fast, friendly and informative. The problem was solved quickly and he helped me understand what was wrong, the ideal solution and what might be an issue in the future.
2007 VOLVO XC90 - CHECK ENGINE LIGHT IS ON - TUSTIN, CALIFORNIA

Patrick

30 years of experience
865 reviews
Patrick
30 years of experience
Not only would I recommend him, I have already told all my friends. Thanks Patrick !!!?
2007 HONDA CIVIC - CHECK ENGINE LIGHT IS ON - SAN MARCOS, TEXAS

Oscar

21 years of experience
66 reviews
Oscar
21 years of experience
Very informative and knowledgeable . He was very thorough , explaining along the way.
2009 TOYOTA MATRIX - CHECK ENGINE LIGHT IS ON - SILVER SPRING, MARYLAND

More related articles

Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP)...

Related questions

Q: My van was missing and rough idling then I turned it off one day and the next day it starts then dies and some times it won't start

Hello, thanks for writing in about your 2001 Dodge Caravan. For certain, given your mileage and codes for these 2 components, replacing these 2 sensors is the minimum. Cleaning the idle air control valve, throttle body, and PCV valve should...

Q: I have a 2008 Honda Odyssey and 3 weeks ago my CEL came on and the van started vibrating while idling.

Hi there. Since the check engine light is coming on I would have to scan the computer for codes to see what is happening. It sounds like you may have an intermittent issue. Most of the time this is caused...

Q: p0720 code will not stay gone

Hello. If the vehicle speed sensor has been replaced then the wiring to the sensor must be tested. If there is high resistance or any breaks in the wire then this will occur. I have also seen the signal gear...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com