Need a
Repair Manual?
P2720 OBD2: Pressure Control Solenoid "D" Control Circuit Low

P2720 OBD2: Pressure Control Solenoid “D” Control Circuit Low

The P2720 OBD-II code refers to an issue with the Pressure Control Solenoid “D” Control Circuit. This code is triggered when the Transmission Control Module (TCM) detects that the solenoid is not functioning correctly, which can lead to improper transmission operation.

What Does the P2720 Code Mean?

The P2720 code indicates that there is a low voltage in the control circuit of the Pressure Control Solenoid “D”. This solenoid plays a critical role in regulating hydraulic pressure within the transmission, allowing for smooth gear shifts. When the TCM identifies a fault, it sets this code, which can lead to potential transmission issues.

What Causes the P2720 Code?

  • Transmission Control Module (TCM) failure
  • Low transmission fluid level
  • Failure of the transmission shift solenoid
  • Wiring issues related to the solenoid

What Are the Symptoms of the P2720 Code?

  • Increased fuel consumption
  • Transmission may not shift properly
  • Unusual noises from the transmission
  • Delayed shifting or slipping of gears

How Serious Is the P2720 Code?

The urgency of the P2720 code is high. It indicates a significant malfunction within the transmission system, which can lead to severe damage if not addressed promptly. Driving with this code can compromise vehicle safety and performance.

How to Diagnose the P2720 Code

  1. Use an OBD-II scanner to confirm the presence of the P2720 code.
  2. Inspect the transmission fluid level and condition.
  3. Check for any wiring issues or damaged connectors associated with the solenoid.
  4. Test the Pressure Control Solenoid and the TCM for proper functionality.

Common Repairs for the P2720 Code

  • Replacing the Pressure Control Solenoid
  • Repairing or replacing damaged wiring and connectors
  • Replacing the Transmission Control Module (if faulty)
  • Refilling or flushing the transmission fluid

How Much Does It Cost to Fix the P2720 Code?

The cost to repair the P2720 code can vary widely depending on the specific issue. Typical costs may range from $100 for simple wiring repairs to over $1,000 for TCM replacement or solenoid issues. Always get a detailed estimate from a qualified mechanic.

Can I Fix the P2720 Code Myself?

While some DIY enthusiasts may be able to handle minor repairs, such as checking fluid levels or inspecting wiring, diagnosing and fixing the P2720 code often requires specialized knowledge and tools. It’s advisable to consult with a professional mechanic for a thorough diagnosis and repair to ensure your vehicle operates safely and effectively.

About JC Landry

JC spent 15+ years as a certified Master Mechanic before trading the shop for the keyboard. He's worked across dealerships, owned and operated his own independent garage, and consulted on automotive trade school curricula, reviewing technical textbooks used in vocational programs. He now serves as Editor-in-Chief at eManualOnline.com, where he oversees the platform's technical content. He's one of the few voices in automotive publishing who has actually turned wrenches professionally on the vehicles he covers. He didn't learn automotive repair to write about it. He learned to write after spending over a decade doing it.

Leave a Reply

Your email address will not be published. Required fields are marked *

;