P0753 Code: Shift Solenoid “A” Electrical

Shift solenoids are actuators that control fluid flow. They’re powered by a signal from the powertrain control module (PCM) or transmission control module (TCM). These solenoids have spring-loaded plungers that open or close the hydraulic circuit when energized. When a shift solenoid loses power, the spring pushes the plunger back to its normal position. Automatic transmissions typically have multiple shift solenoids.  If the PCM detects a malfunction with the shift solenoid “A” circuit, the computer will store a P0753 code.

What Does the P0753 Code Mean?

Diagnostic trouble code (DTC) P0753 stands for “Shift Solenoid ‘A’ Electrical.”

The PCM  monitors the shift solenoids to regulate the flow of fluid between hydraulic circuits and change the transmission gear ratio. Shift solenoids are responsible for opening or closing the valves in the valve body to allow transmission fluid to flow to the clutches and bands. These solenoids can be turned on or off at different times to change gear ratios. For example, the transmission might activate the “A” solenoid for first gear, both “A” and “B” solenoids for the second gear, only the “B” solenoid for the third gear, and neither solenoids for the fourth gear. This maximizes the engine’s performance at the lowest possible RPM.

A malfunction within the shift solenoid “A” circuit can trigger a variety of trouble codes, depending on the specific vehicle and number of gears associated with the transmission. A P0753 code typically denotes an electrical fault with the “A” circuit. This can lead to further issues if the problems triggering a P0753 code aren’t addressed.

Note: The definition of code P0753 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 P0753 Code?

• Low fluid level
• Dirty or contaminated fluid
• Dirty or clogged transmission filter
• Faulty transmission valve body
• Blocked hydraulic passages
• Failed transmission
• Faulty shift solenoid
• Corroded or damaged connector
• Faulty or damaged wiring
• Defective PCM

What are the Common Symptoms of the P0753 Code?

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

How to Diagnose the P0753 Code

DTC P0753 is a generic powertrain code that applies to a variety of vehicles with automatic transmissions. However, specific diagnostic procedures can vary based on the vehicle’s make and model. What might work to resolve a P0753 code in a Dodge might not work for a Honda. Make sure to consult your vehicle’s repair manuals to find the appropriate solution for your DTC’s underlying issues.

If you don’t have the required auto repair know-how or skills, we advise hiring a specialist to examine your vehicle and perform the necessary tests. You can avoid expensive DIY mistakes by consulting a qualified mechanic. If you want to know more about the diagnostic process, you can also watch the following video:

How to Fix the P0753 Code

There’s no magic bullet that resolves a P0753 code. You’ll need to review your vehicle’s repair manual before attempting any fixes. There are OBD-II resources online to help you get started.  We recommend getting Chilton repair manuals and subscribing to ALLDATA to get more information about your vehicle and its potential problems.