P0757 Code: Shift Solenoid “B” Stuck On

P0757 is one of many diagnostic trouble codes (DTCs) that you might encounter while attempting to fix your vehicle. DTCs have different definitions and recommended repair procedures depending on the vehicle’s make and model. If you’re serious about diagnosing your vehicle’s issues, you’ll have to learn the basics of this code.

What Does the P0757 Code Mean?

Diagnostic trouble code (DTC) P0757 code is usually defined as “Shift Solenoid ‘B’ Stuck On.” It’s a generic transmission code that applies to select vehicles equipped with OBD-II  manufactured from Chrysler, Ford, Dodge, Hyundai, and Toyota, among others.

Your vehicle’s powertrain control module (PCM) can register a P0757 code if it detects a malfunction within the shift solenoid “B” circuit.  Most automatic transmissions have multiple  shift solenoids (called A, B, etc.) that control the fluid flow between hydraulic circuits and change the transmission gears when necessary. The location of the shift solenoid “B” circuit differs from vehicle to vehicle depending on its powertrain configuration.

A P0757 code can do harm to your vehicle if it isn’t properly addressed. You’ll need to troubleshoot this code to prevent further damage to the vehicle’s components.

Note: The definition of code P0757 might be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.

What are the Common Causes of the P0757 Code?

A P0757 code can be caused by a number of factors. Here are some of the most common causes of P0757 code.

• Low fluid level
• Clogged transmission filter
• Faulty transmission valve body
• Clogged hydraulic passages
• Internal transmission failure
• Failed shift solenoid
• Damaged connector or wiring
• Faulty PCM

What are the Common Symptoms of the P0757 Code?

There are many codes associated with shift solenoid “B” circuit issues other than P0757. This includes codes P0755, P0756, P0758 and P0759. Your vehicle’s PCM can store more than one DTC at a time. In that case, you might encounter some symptoms that aren’t listed here. However, if your PCM only has a P0757 stored, you can expect one or more of the following symptoms to manifest.

• Illuminated check engine light
• Transmission doesn’t shift properly
• Reduced fuel economy
• Vehicle enters limp mode

How to Diagnose the P0757 Code

Diagnosing a P0757 code (or any DTC for that matter) is harder than it seems. You’ll need sufficient repair skills and knowledge to correctly identify the underlying problems triggering this code. Your vehicle’s make and model will determine the appropriate diagnostic and repair steps needed to resolve this code. The following video is a good reference point for beginners, but you still have to do a lot of research before attempting any repairs.

How to Fix the P0757 Code

There’s no magic bullet for troubleshooting DTCs like P0757. You’ll have to consult your vehicle’s repair manual to figure out the right fix because DTCs can have different recommended definitions and fixes depending on the vehicle’s manufacturer. We recommend browsing the internet for common fixes related to your vehicle’s problems. Technical service bulletins are usually available for more well-known problems.

There are numerous OBD-II resources online. You can find a Chilton repair manual that contains part diagrams for your specific vehicle. If you have some extra cash, you can also get an ALLDATA single-vehicle subscription to get detailed information on your vehicle.

Troubleshooting a P0757 code is no walk in the park. You might need to open up your vehicle to get a better look at its electrical components. Consider hiring a pro if you lack the necessary technical knowledge to fix your vehicle.