P0775 OBD-II Trouble Code: Pressure Control Solenoid B Malfunction

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

SCHEDULE P0775 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0775 code

P0775 is a diagnostic trouble code (DTC) for "Pressure Control Solenoid B Malfunction". 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 $69.99. 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.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$69.99$20.00
Toyota$69.99$20.00
BMW$69.99$20.00
SCHEDULE P0775 DIAGNOSTIC Get a fair and transparent estimate upfront

Check Engine Light

P0775 code definition

The P0775 code identifies a problem with a solenoid located within an automatic transmission.

The P0775 code is associated with the P0776, P0777, P0778, and P0779 codes.

What the P0775 code means

The P0775 code is the OBD-II generic code for insufficient fluid pressure within a solenoid operating the automatic transmission. When the P0775 code is indicated, then that means that a hydraulic solenoid in the transmission is not experiencing the proper amount of pressure from the hydraulic fluid. These solenoids are responsible for moving the transmission into gear and controlling the torque converter. Insufficient fluid pressure means that the solenoids may not be able to operate correctly.

What causes the P0775 code?

The insufficient solenoid pressure code may have several causes:

  • Leaks or blockages in fluid pathways within the transmission
  • Malfunctioning electronic pressure control solenoid
  • Low or dirty transmission fluid
  • Electrical problem with transmission control module
  • Electrical problem with powertrain control module
  • Mechanical issue within the transmission

What are the symptoms of the P0775 code?

The P0775 code has most directly to do with the transmission. Because of this, symptoms that coincide with the P0775 code involve transmission performance. In some vehicles, this code will cause the transmission to go into “limp” mode, slowing and reducing transmission function. Shifting will become rougher and less regular. The transmission will likely slip gears as well, and stands a higher chance of overheating. All of this will likely reduce fuel economy noticeably.

In some applications, this code must persist for a while before the Check Engine Light will illuminate on the dashboard.

How does a mechanic diagnose the P0775 code?

Before doing any significant diagnostic work, the technician will check the transmission fluid levels while also checking the fluid quality. If there is low or dirty fluid in the transmission, it is likely the cause of the P0775 code.

After the fluid is checked, a certified technician will use an OBD-II scanner to view the trouble code in real-time to see when it was first indicated. Then the code will be reset before the technician takes the vehicle for a test drive. If the code appears again during the course of the test drive, then it will confirm that the original code was not the result of an electrical short or issue that occurs intermittently.

Once the code appears again, the wiring and circuitry around the transmission control module and the powertrain control module will be inspected for damage or disconnections. The circuitry will then be tested by a technician with a voltmeter.

Common mistakes when diagnosing the P0775 code

Parts like the high pressure pump, electronic pressure control solenoid, and the wiring harness are often replaced unnecessarily when this error code appears. Often, the problem arises due to poor quality or insufficient quality regarding the transmission fluid. Small, intermittent electrical issues can also cause this code to appear, so it is wise to do a full diagnosis of the issue when the P0775 code appears.

How serious is the P0775 code?

The P0775 code has the potential to significantly hinder vehicle performance via the transmission. If the transmission enters “limp” mode or if the issues within the transmission prevent proper operation, then the fuel economy and overall performance will suffer. For these reasons, the P0775 code is serious enough that it should be diagnosed immediately.

What repairs can fix the P0775 code?

The most common repairs to address the P0775 are as follows:

Additional comments for consideration regarding the P0775 code

Codes for the torque converter clutch, shift solenoid, gear ratios, and transmission slippage often accompany the P0775 code. The amount of pressure that is needed within the solenoids controlling the transmission is determined by throttle position, engine speed, and several other metrics that are calculated together to determine the the correct gear and amount of torque converter lockup.

Need help with a P0775 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
P0775

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

SCHEDULE P0775 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

4,240

Rating Summary
3,884
174
45
26
111
3,884
174
45
26
111
Ben

Ben

39 years of experience
953 reviews
Ben
39 years of experience
Always solve my problem
2009 VOLKSWAGEN JETTA - CHECK ENGINE LIGHT IS ON - HOUSTON, TEXAS
Brikk

Brikk

15 years of experience
299 reviews
Brikk
15 years of experience
Very knowledgeable and polite. Explained everything in clear detail. Would recommend to others.
2009 GMC ACADIA - CHECK ENGINE LIGHT IS ON - WAXHAW, NORTH CAROLINA
Peter

Peter

40 years of experience
1069 reviews
Peter
40 years of experience
Always a great experience with Peter.
2012 CHEVROLET EXPRESS 1500 - CHECK ENGINE LIGHT IS ON - PEORIA, ARIZONA
Daniel

Daniel

19 years of experience
184 reviews
Daniel
19 years of experience
Daniel was very proffessional and efficient. I would recommend him to family and friends.
1999 ISUZU RODEO - CHECK ENGINE LIGHT IS ON - HOUSTON, TEXAS

More related articles

How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...
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...
P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance...

Related questions

Q: Trouble code P0101

Hello. P0101 is the trouble code for a problem with the mass airflow sensor and or circuit. This code is thrown when the computer detects an issue with the signal of the MAF sensor. The MAF sensor is one of...

Q: Check engine light was on and then the car won't turn on at all, it's a 97 camry le with 186k miles

If you request a no start diagnostic the responding certified mechanic will get the problem diagnosed and repaired for you promptly. The fact that the check engine light has come on may mean that key clues are available to speed...

Q: Car reads "Pressure Control Valve 3V". I believe it has to do with a solenoid.

Hello. I would need to know some more information about what you car is doing to be able to help with a diagnosis. If it is giving a pressure control code then most of the time this is caused by...

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