Skip the auto shop - Our mechanics make house calls

P0757 OBD-II Trouble Code: Shift Solenoid B Stuck On

check engine light

P0757 code definition

The PCM has registered an irregularity with shift solenoid B.

What the P0757 code means

Your vehicle’s computer-controlled transmission relies on shift solenoids to manage fluid transferring between hydraulic circuits to trigger a change in transmission to gear ratio. Code P0757 shows up when the PCM senses an abnormality during this process in solenoid B. Varying ratios are necessary in order to speed up and slow down, optimizing fuel efficiency, and maximize engine performance.

What causes the P0757 code?

There are a number of things that could be behind your vehicle reporting a P0757 code. Common reasons are:

What are the symptoms of the P0757 code?

Sometimes there is practically no symptom to alert you to the fact that your vehicle is underperforming. Other drivers will experience very pronounced symptoms, like not being able to shift into or out of any gear.

Harsh shifting is another common symptom as are problems with the transmission like it slipping or even overheating. If your vehicle has a P0757, you’ll most likely notice a drop in fuel efficiency. Finally, the transmission control may drop into “limp-home” mode for as long as this code is being stored.

How does a mechanic diagnose the P0757 code?

Your mechanic will use a scanner to first assess all the codes your vehicle has stored. As long as there aren’t other codes present, they’ll next move on to checking your transmission fluid. If it’s dirty or has somehow been contaminated, this will need to be addressed. If the fluid level is simply low, the mechanic will fill it back up and that may be the end of the problem.

However, if the fluid smells like it’s been burning, this is a sign that the transmission has been operating with an extremely low level of fluid. As a result, internal mechanical damage may be extensive. They’ll need to remove your transmission pan to check for debris (e.g. material from the clutch). Should they find any, a total rebuild will become necessary and the mechanic will need to install a new torque converter.

If no debris is found, they’ll move onto inspecting the wiring and connectors for any damage that may be causing malfunctions. As long as they prove to be fine, the mechanic will need to use a scanner to diagnose and record all the trouble codes stored so they can look for any signs of intermittent problems.

Common mistakes when diagnosing the P0757 code

A lot of mechanics miss that a faulty shift solenoid circuit is behind the P0757 code. As a result, shift solenoid problems get diagnosed instead, leading to unnecessary work that doesn’t really do much about the problem.

How serious is the P0757 code?

Although it may not be considered serious, if the P0757 code represents that you can’t shift gears properly, it’s definitely inconvenient enough that you should get it looked at right away. In those instances where there are no real symptoms, it’s just as important that a mechanic looks at it because you could be doing plenty of damage by continuing to drive your vehicle without knowing it.

What repairs can fix the P0757 code?

Fortunately, fixing a P0757 code only takes one of the following:

Additional comments for consideration regarding the P0757 code

In most cases when the transmission solenoid is stuck, the problem involves foreign materials getting in the way of either the solenoid working properly or fluid flowing through the transmission valve body.

Need help with a P0757 code?

If your vehicle is suffering because of a P0757 code, let YourMechanic help. You can call us at 1-800-701-6230 to speak with one of our service advisors or schedule an appointment on our site. Either way, we’ll provide you with a free quote and then get a certified mobile mechanic to your home or office whenever is most convenient.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...
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: Check Engine Light is on, trouble code P0011&12. I changed the oil and filter. I need to turn off the engine light to see if that problem is solved.

Hello. If the oil level was low or if the wrong oil war previously used then that can cause these codes to come up. Most of the time though, on this engine, it is caused by a failure in the...

Q: Reduced engine light 2008 Ford F250

Hi there - unfortunately, this warning can be caused by countless engine or transmission problems. Check for problems codes which cause this indication. Quite often, this message is a protection for the transmission in particular to prevent damage. I would...

Q: P0016 (crankshaft and camshaft correlation bank 1 sensor A)

Hello. Trouble code P0016 is set when the computer detects that there is an issue with the timing between the engine's camshaft and crankshaft signals. The camshaft and crankshafts are connected by a belt or chain, and are precisely timed...