P2728 Fault Code

Pressure Control Solenoid E Control Circuit Range/Performance

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2728 fault code indicates a problem with the Pressure Control Solenoid E and its control circuit range or performance. This solenoid plays a critical role in regulating pressure within the transmission, ensuring that it operates efficiently. When this code is triggered, it suggests that the solenoid is not functioning as intended, which can lead to poor transmission performance and can affect the overall driving experience.

What are the symptoms of the P2728 code?

Common symptoms associated with the P2728 code include:

• Erratic or slipping transmission
• Harsh or unpredictable shifting
• Check Engine Light (CEL) illuminated on the dashboard
• Delayed engagement when shifting between gears
• Unusual noises emanating from the transmission.

What causes the P2728 code?

The primary causes of the P2728 code may include:

• Faulty Pressure Control Solenoid E
• Wiring issues such as shorts or open circuits leading to the solenoid
• Poor electrical connections or corroded connectors
• Low transmission fluid levels or fluid quality problems
• Failures in the Transmission Control Module (TCM) affecting the solenoid’s performance.

How to fix P2728?

To resolve the P2728 fault code, consider the following steps:

• Inspect and replace the Pressure Control Solenoid E if it's defective.
• Check all wiring and connectors leading to the solenoid for damage, repair or replace as necessary.
• Ensure that the transmission fluid is at the proper level and replace it if contaminated.
• Use a compatible scan tool to clear the code and perform a test drive to ensure that the issue has been resolved.
• If the problem persists, it may be necessary to further diagnose the Transmission Control Module.