P2728 - OBD Trouble Code

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How does the OBD error code P2728 occur? What are its symptoms and causes? Refusal of the transmission to shift correctly is known as pressure control solenoid "E" control circuit range/performance. The hydraulic pressure is controlled by the TCM with the help of clutch pressure control solenoid. This is necessary to apply clutch packs as it gives different gear ratios which are necessary to push your vehicle down the lane. If the pressure control solenoid is not performing well, then the error code will be set which is detected by the TCM.

This is a common type of error code and is appropriate for vehicles with automatic transmission. This is constrained to vehicles like Ford, GMC, Chevrolet, Honda, BMW, Saturn, Land Rover, Acura, Nissan, Saturn, etc. The reparation process will change based on make, model and year of configuration though it is very common. When the P2728 error is identified, it means the PCM has found an issue with the transmission pressure control solenoid "E" control circuit. The particular issue is set depending on the error which is specific and it is found by the PCM. An automatic transmission will look after the bands and clutches so that changes can be made to the gears by fixing the fluid pressure correctly at the right place and time. Correcting the fluid pressure is the work of the transmission control solenoid so that the automatic transmission will operate correctly and shift smoothly as required. The pressure is controlled by the PCM within the solenoid and it guides the fluid to several hydraulic circuits so as to alter the transmission gear ratio perfectly as needed.

What causes this problem with the Pressure Control Solenoid "E" Control Circuit Range/Performance?

• The fluid is either muddy or polluted.
• Dirty transmission filter or it is blocked.
• The transmission valve body is broken.
• The hydraulic passage is blocked.
• Internal faults in the transmission.
• Pressure control solenoid failure.
• The connector is corroded or broken.
• PCM is damaged.
• Failure of the transmission pump.

1. Powertrain Control Module - You can find the powertrain control module to be damaged if the engine light keeps flashing and if the car fails to start immediately. The right replacement for your damaged powertrain control module can be found at Parts Avatar.
2. Pressure Control Solenoid - Is this component broken or defective? Find a new replacement for pressure control solenoid from PartsAvatar.
3. Transmission Control Module - If the automatic transmission system is damaged, then the check engine light will keep blinking. Avoid the P2728 error in your vehicle by replacing the automatic transmission system parts.
4. Automatic Transmission Fluid - Replacing the dirty transmission fluid is the best idea to avoid P2728 error code. Get rid of it as soon as possible.
5. Engine Wiring Connector - A corroded engine wiring connector can give rise to a performance issue in your vehicle which can in turn damage the engine. Replacing or repairing it quickly can help you to avoid the P2728 error.
6. Filters - Perform a visual inspection of this component for damages or any blocks. Replace them with the right part and clear blockages.
7. Fuel Pump - Hesitation of the engine to start during acceleration is a sign of a damaged fuel pump. Get rid of it as soon as possible.

For us our customers are everything, and that’s why we will help you to diagnose P2728 code by mentioning some important symptoms below:

Common Symptoms

• Transmission may slip.
• Overburn of transmission.
• Transmission hooks while applying gear.
• Signs of misfiring.
• Vehicle reaches limp mode.
• Illumination of the check engine light.
• Fuel consumption might be increased.

After you know the symptoms of your vehicle’s problem, it becomes easy to detect it and get started with solving it. So, next on our list is a few common steps to correct this issue with your vehicle’s.

• You have to replace the fluid and filter.
• Faulty pressure control solenoid needs repair.
• The defective transmission valve body needs replacement.
• The defective transmission pump has to be replaced.
• Transmission flush to remove blocks.
• Wiping the rusted connectors.
• Replacing the wires.
• Replacing the PCM.

Apart from this, you might need to replace other damaged parts too like Transmission, Powertrain, PCM, pressure control solenoid, fluid, transmission control module, filter, pump, wiring, valves and more. You can easily find all these parts with us. Not only that you can get these parts shipped to your door free if your cart value happens to exceed $99.

If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:

Fluid & Wiring Inspections

• Firstly ensure that the fluid is not contaminated and is available at the right level. If you clearly don’t remember to check the records as to when you last changed the filter and fluids.
• Visually inspecting these elements as well as the connectors and its connections to ensure safety. Visual inspection must also include the wires, connectors, transmission solenoid, transmission pump, and PCM. The transmission pump can be driven mechanically or electrically based on the configuration of the transmission pump.

Advanced Steps

• Each and every vehicle have their own procedure as they are specific and you have to use proper diagnostic tools for the process. In order to start the process, you have to use a digital multimeter and appropriate technical references. It is always best to use your vehicle specific troubleshooting chart before you proceed with the advanced steps. The need for voltage will change depending on the design or the configuration

Continuity Checks

• Remove the power from the circuit and check for continuity in your vehicle where the readings of your vehicle must be set to 0 ohms. You can also use manufacture specified reading. If you find no resistance or continuity, then it is very much clear that there are damaged wires which need to be replaced.

Common Mistakes When Diagnosing the P2728 Code

• The improper functioning of the transmission control module.
• The liquid level is low in the transmission.
• Problem with the electrical wires.
• Transmission shift solenoid has some defects.