P2726 OBD Error Code: Problem & Solutions

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Have you come across this P2726 error code? Do you know what causes this error to appear in your vehicle? Failure of the transmission to shift as required is known as pressure control solenoid "E" intermittent. The hydraulic pressure in the transmission is controlled by the TCM which uses the pressure control solenoid to apply clutch packs in the transmission. It gives various gear ratios which is needed to drive the vehicle down the road. If TCM finds that the component is not performing well as desired, then the P2726 code will be set.

This error is mostly found in vehicles which have automatic transmission. And it may include but limits to certain vehicles like Nissan, Land Rover, Cadillac, Chevrolet, Chevy, Dodge, GMC, Mercedes Benz, VW, Audi, Pontiac, Saturn, Skoda, Honda, etc. the repair process will change based on year, make, model and powertrain configuration. If an error is found, it means the PCM has found an issue There are generally A, B, and C – 3 solenoids whereas here there are 5 solenoids, A, B, C, D and E in the automatic transmission. The code is found based on a specific issue which signals the PCM and the CEL keeps flashing. The work of the transmission pressure control solenoids is to operate the pressure of the fluid for the correct automatic transmission operation. An electronic signal will be received by the PCM. Bands and clutches will look after the automatic transmission so that gears can be changed place the fluid pressure correctly. As the signal from the related devices is received, the vehicle will be monitored, and the PCM will control the pressure solenoid to route the correct pressure to several circuits where the transmission gear ratio is correctly changed.

What causes this problem with the Pressure Control Solenoid "E" Intermittent?

• Transmission filter blockage.
• Passage of the hydraulic is limited.
• Possibilities of a defective pressure control solenoid.
• The fluid might be murky or contaminated.
• Broken or faulty connectors.
• Damaged cable wirings.
• Broken PCM.
• The transmission valve body and transmission pump might be malfunctioning.

1. Powertrain Control Module - A faulty PCM can cause misfiring issues and the engine behavior might also be erratic. If your vehicle is causing misfiring issues, then it is because of a faulty powertrain control module. Shop them from Parts Avatar at best prices online.
2. Pressure Control Solenoid - A faulty or broken pressure control solenoid needs quick replacement so that you can avoid P2726 error code.
3. Transmission Control Module - Illumination of the check engine light will take place if the transmission control system malfunctions. Avoid the P2726 error by replacing the faulty component.
4. Automatic Transmission Fluid - A dirty transmission fluid can give rise to grinding or strange noises coming from the vehicle. One easy way to get rid of the P2726 error is to replace the dirty automatic transmission fluid so that the vehicle functions normally.
5. Engine Wiring Connector - The engine wiring connectors can give rise to issues in your vehicle if they are corroded. The corroded or damaged engine wiring connectors need immediate replacement so that the P2726 error is avoided.
6. Filters - The filters can get easily damaged if there are any blocks or muddy particles. Replacing it quickly can help you to get rid of the P2726 error code.
7. Fuel Pump - Does your engine surge very often? Then it is a sign of a faulty fuel pump which needs replacement as soon as possible.

We at Parts Avatar Canada care for our customers, and that’s why we will help you to diagnose P2726 code by listing out some major symptoms. They are mentioned below as follows:

Common Symptoms

• Vehicle reaches limp mode.
• Slipping of transmission during the shift.
• Transmission burn.
• Transmission clasps in gear.
• Low fuel economy.
• Indications of a misfire.
• Check engine light is well lit.

Learn the ways with which you can correct this trouble code:

• Fluid and filter need alteration.
• Damaged pressure control solenoid needs fixation
• Fixing the faulty transmission valve body.
• Faulty transmission pump need rework.
• Flushing the transmission to clear passages.
• Cleaning the corroded connectors.
• Changing the faulty cables.
• PCM needs alteration.

However, if you face any issue then we have stocked a wide range of best-priced Transmission, PCM, Pressure Control Solenoid, Engine, transmission control module, fluid, valve, pump, filter, wiring, Connector and more to help you out in fixing your car

Here are some steps which you should follow in order to diagnose this fault code:

• You will need several instruments to effectively diagnose this code.
• A DVOM, an oscilloscope and a scanner can help in performing a successful diagnosis.
• If the transmission pressure is not enough, this error might be found and occurs mostly due to less or muddy transmission fluid.
• Transmission diagnosis can be started by checking the transmission fluid dipstick.
• Always check for the fluid level which is the same as the manufacturer’s recommendation and make sure it is good.
• Burnt fluid smell is a sign that the transmission functions at the low-level condition and there are chances for internal mechanical failure.
• Also, check the pan for the presence of any dust particles or rubble.
• If there are any muddy particles, a total rebuild, fluid flush and replacement, and a new torque converter will be needed.
• If you don’t find any contaminants check the internal wires and circuits.
• Repair the separated, eroded and damaged wires, connectors and other parts as needed.
• Retest the system after a successful diagnosis. If every component is in proper working condition, then attach a scanner to the diagnostic connector and recover the stored codes and freeze frame data.
• This step can be highly useful to determine if there are any erratic conditions which made the code to get stored.
• Clear the codes and test the vehicle to see if the error returns.
• This can help you to know if the malfunction was erratic. Clear the codes again and test drive to see if the error reappears.
• There might be an erratic condition if the code refuses to return instantly.
• It can be quite challenging to diagnose this error code where at times you have to worsen this condition.
• The additional fluid must be added and check for leakages if the transmission fluid looks in decent shape.
• Allow the vehicle to reach the normal operating temperature by filling fluid at the correct level and test driving the vehicle to see if the error shows up again.
• If the code does not show up, it can be due to transmission slipping or less fluid level/ pressure condition.
• But if the error shows up again, use a manual pressure gauge and check the pump pressure.
• Use a hydraulic pressure diagram and fix the ending point of the gauge into the correct opening on the transmission housing to calculate pump pressure.
• Repair accordingly by relating your findings with the manufacturer specification.
• The low pump pressure can arise due to the hydraulic passages that are blocked, the pump that is defective, shift solenoids that are faulty or may be an electronic pressure regulator which can be damaged.
• You must take away the transmission and partial assembly in order to fix a new pump.
• If the transmission works fine and if the code returns instantly, the reference voltage and ground signals at the electronic pressure control solenoid must be inspected visually.
• With the help of DVOM check for continuity at the reference voltage or ground circuit if they are found to be open.
• Replace the shorted or open circuits as needed.
• Test drive the vehicle by clearing the codes and make sure that a positive repair has been done.
• With the help of the manufacturer's wiring diagram for the electronic pressure control solenoid, check for voltage and continuity and see if it complies or obeys with the manufacturer’s specification
• Replace the shorted or open circuits as needed.
• Test drive the vehicle by clearing the codes and make sure that a positive repair has been done.
• Fix a scanner to the diagnostic connector and initiate the electronic pressure control solenoid manually.
• If everything works perfectly, then the high-pressure pump, torque converter, or PCM can be faulty or defective.
• Failure of PCM is rare and it must be reprogrammed.
• Solenoid must be replaced and recheck the TCM if manual activation of the electronic pressure control solenoid does not happen.

Common Mistakes When Diagnosing the P2726 Code

• Transmission control module appears to be faulty.
• The transmission has fluid which is below the expected level.
• Transmission shift solenoid seems to be faulty.
• The electrical wires might be damaged.