P2730 Pressure Control Solenoid E Control Circuit High
OBD2 Error Codes

P2730 Pressure Control Solenoid E Control Circuit High

P2730 Pressure Control Solenoid E Control Circuit High

OBD-II DTC Datasheet

Pressure Control Solenoid E Control Circuit High

What does this mean?

This is a generic transmission diagnostic trouble code (DTC) applicable to OBD-II vehicles with an automatic transmission. This may include, but is not limited to, vehicles from Ford, GMC, Chevrolet, Honda, BMW, Saturn, Land Rover, Acura, Nissan, Saturn, etc. While general, exact repair steps may vary by year, brand, powertrain models and configurations.

In most cases, automatic transmissions will include at least three pressure control solenoids known as solenoids A, B, and C. Newer transmissions tend to have more gears and more solenoids, giving you solenoids D, E, F, etc. E. Various DTCs are associated with the "E" solenoid control circuit and some of the more common ones include P2727, P2728, P2729 and P2730. When DTC P2730 OBD-II is set, the powertrain control module (PCM) has detected a problem with the transmission pressure control solenoid "E" control circuit. The specific set of codes is based on the specific malfunction detected by the PCM.

The automatic transmission is controlled by belts and clutches that shift gears by applying fluid pressure to the right place at the right time. The transmission pressure control solenoid valves are designed to regulate fluid pressure for proper automatic transmission operation and smooth shifting. The PCM monitors the pressure inside the solenoids and directs fluid to various hydraulic circuits, which adjust the transmission ratio exactly as needed.

P2730 is set by the PCM when it detects that the "E" pressure control solenoid control circuit is high and therefore not functioning properly.

Example of transmission solenoids: P2730 Pressure Control Solenoid E Control Circuit High

What is the severity of this DTC?

The severity of this code usually starts at moderate, but can quickly progress to a more serious level if not corrected in a timely manner. In circumstances where the transmission collides with the gear, it can cause permanent internal damage, making the problem serious.

What are some of the symptoms of the code?

Symptoms of a P2730 trouble code may include:

  • Increased fuel consumption
  • Check engine light on
  • Transmission overheats
  • Transmission slips when shifting gears
  • Gearbox shifts heavily (gear engages)
  • Possible misfire-like symptoms
  • The PCM places the transmission in braking mode.

What are some of the common causes for the code?

Reasons for this P2730 transfer code may include:

  • Defective pressure control solenoid
  • Contaminated transmission fluid
  • Limited transmission filter
  • Defective transmission pump
  • Defective transmission valve body
  • Blocked hydraulic passages
  • Corroded or damaged connector
  • Faulty or damaged wiring
  • Defective PCM

What are some steps to troubleshoot the P2730?

Before beginning the troubleshooting process for any problem, you should review the vehicle-specific Technical Service Bulletins (TSB) by year, model and transmission. In some situations, this can save you a lot of time in the long run by pointing you in the right direction.

Checking fluid and wiring

The first step is to check the fluid level and check the condition of the fluid for contamination. Before changing the fluid, you should (if possible) check the vehicle records to check when the filter and fluid were last changed.

This is followed by a detailed visual inspection to check the condition of the wiring for obvious defects. Check connectors and connections for safety, corrosion and damage to pins. This should include all wiring and connectors to the transmission pressure control solenoids, transmission pump, and PCM. Depending on the specific configuration, the transmission pump can be electrically or mechanically driven.

Advanced steps

Additional steps are always vehicle specific and require appropriate advanced equipment to be performed accurately. These procedures require a digital multimeter and vehicle-specific technical reference documents. You should always get specific troubleshooting data for your vehicle before proceeding with advanced steps. Voltage requirements depend on the specific vehicle model. Fluid pressure requirements can also vary depending on the design and configuration of the transmission.

Continuity checks

Unless otherwise specified in the datasheet, normal wiring and connection readings should be 0 ohms of resistance. Continuity checks should always be performed with circuit power disconnected to avoid short circuiting the circuit and causing more damage. Resistance or no continuity indicates faulty wiring that is open or shorted and requires repair or replacement.

What are the standard ways to fix this code?

  • Replacing fluid and filter
  • Replace defective pressure control solenoid.
  • Repair or replace a faulty transmission pump
  • Repair or replace a faulty transmission valve body
  • Flush transmission to clear passages 
  • Cleaning connectors from corrosion
  • Repair or replace faulty wiring
  • Flash or replace defective PCM

Possible misdiagnosis may include:

  • Engine misfire problem
  • Transmission pump malfunction
  • Internal transmission problem
  • Transmission problem

Hopefully, the information in this article will help you fix the P2730 Pressure Control Solenoid "E" diagnostic code (s) problem. This article is for informational purposes only and specific technical data and service bulletins for your vehicle will always take precedence.   

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NOTE. This information is provided for informational purposes only. It is not intended to be used as a repair recommendation and we are not responsible for any action you take on any vehicle. All information on this site is protected by copyright.

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