P0635 OBD-II Trouble Code: Power Steering Control Circuit

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0635 code

P0635 is a diagnostic trouble code (DTC) for "Power Steering Control Circuit". 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 is on diagnostic inspection. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

P0635 code definition

The P0635 code refers to a detected problem with the vehicle's power steering control circuit. This malfunction has been detected by the Powertrain Control Module (PCM) or another one of the control modules linked up to the power steering control circuit.

What the P0635 code means

If one of the pertinent control modules registers a problem with the power steering control circuit, the P0635 trouble code will be logged in the vehicle's onboard computer. This may result in a host of steering issues for the vehicle in question.

What causes the P0635 code?

In many cases, a P0635 trouble code is the result of a faulty steering position or pressure switch. Although faulty switches can account for the majority of this code, faulty, corroded and broken wiring related to the control modules is also known as a potential case.

What are the symptoms of the P0635 code?

The P0635 will typically result in steering problems. The vehicle may steer erratically, and the steering wheel may react stiffly. A logged P0635 trouble code and illuminated engine lamp will accompany this issue for the sake of diagnosis.

How does a mechanic diagnose the P0635 code?

A mechanic may first diagnose a P0635 by reading the code with an OBD-II code reader. Firstly, the position and pressure switches in the steering system should be checked for potential signs of faultiness or malfunction. Each control module relating to the steering circuit should be tested for voltage and visible signs of malfunction. Because there are so many control modules potentially associated with the steering circuit, you should focus first on the modules your vehicle may have had issues with in the past.

Common mistakes when diagnosing the P0635 code

Because the P0635 relates to a control module's failure to communicate properly, other trouble codes may be logged and repaired needlessly. If you have received multiple trouble codes, you should focus on the ones that pertain directly to the Controller Area Network (CAN) before tending to component-related issues themselves. Referring to the order in which the OBD-II code reader reports the trouble codes may also help in distinguishing the root causes from their results. A specialized scanner (such as an Autohex) should be used to pinpoint control module issues more quickly and accurately.

How serious is the P0635 code?

A P0635 will limit your vehicle's drivability if left unchecked. Although your vehicle may still be drivable, limited steering can prove to be a safety hazard on the road. With that in mind, a P0635 code should be addressed as soon as possible.

What repairs can fix the P0635 code?

If one of the steering switches has been identified as damaged or faulty, it should be replaced as needed. Any faulty, corroded, damaged or broken wiring related to the steering system should be fixed as well. If any of the control modules have been identified as problematic, a memory saver should be attached to the system in order to save the info from being potentially wiped. If all of the pertinent components and wiring have been verified or repaired, you should scan it again with an OBD-II scanner to see if the computer still reads the P0635 code. Give the vehicle a test drive following your repairs to see if the code returns.

Additional comments for consideration regarding the P0635 code

Many vehicle models require the steering malfunction to be recorded in a consecutive series of driving cycles in order for the trouble code to be logged.

Need help with a P0635 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.

P0635
trouble codes
Check Engine Light

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0635 code.

Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.8/5

Number of Reviews

5,754

Rating Summary
5,319
212
50
34
139
5,319
212
50
34
139

Victor

34 years of experience
134 reviews
Victor
34 years of experience
Ford F-150 - Check Engine Light is on - Albuquerque, New Mexico
Awesome mechanic! Very thorough in explaining what the possibilities are and where to start from in regards to getting out truck in to shape. Love the ability to have a mechanic come to you, especially with a young family. Highly recommend!

Paul

18 years of experience
238 reviews
Paul
18 years of experience
Nissan 370Z - Check Engine Light is on - Tampa, Florida
Paul was amazing really good guy very informative and really profesional confirmed it was my o2 sensors and check to make sure everything else was good. Will recommend to everyone!!

Mohammed

8 years of experience
152 reviews
Mohammed
8 years of experience
Ford F-150 - Check Engine Light is on - Morrisville, North Carolina
Mohammed is a great mechanic and a great guy. Very thorough, professional, and a funny guy. I would recommend him to anyone. Thank you!

Kyle

11 years of experience
58 reviews
Kyle
11 years of experience
Ford Focus - Check Engine Light is on - Las Vegas, Nevada
Excellent experience. Kyle was very friendly and resolved the problem fast with a reasonable quote.


More related articles

P0068 OBD-II Trouble Code: Air Assisted Injector Control Circuit High
P0068 P0068 trouble code definition Manifold Absolute Pressure or Mass Air Flow Sensor Throttle Position Correlation What the P0068 code means This code means that the manifold absolute pressure or mass air flow sensors that detect air flow through...
P0452 OBD-II Trouble Code: Evaporative Emission Control System Pressure Sensor Low Input
P0452 means there is a issue with the fuel tank pressure sensor or the evaporative pressure sensor. Some causes are a loose fuel gap or a vacuum leak.
P0841 OBD-II Trouble Code: Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance
What the P0841 code means The P0841 code indicates that the Powertrain Control Module (PCM) has discovered an abnormality in the transmission...

Related questions

Will my car having shifting problems if my purge valve solenoid is bad

A leaking purge valve can cause a hard start and rough running after getting fuel due to vapors flooding the engine out. The shifting problem is most likely not related to the purge valve. This sounds like a shift solenoid...

Check engine light refuses to go off after engine replaced

Hello there, you have a long series of issues going on with your 2013 Hyundai Sonata. If you keep getting a repeating oil light on than there is likely a fault in that system. Since this fault has lasted after...

KOEO test code 332

Hello there, A few different things can cause insufficient EGR flow. The most likely are: a stuck closed EGR valve a failed EGR valve solenoid faulty oxygen sensor low fuel pressure exhaust leak These can also...

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 (855) 347-2779 · hi@yourmechanic.com